首页 > 最新文献

Isokinetics and Exercise Science最新文献

英文 中文
Pitch release speed predictors for division I collegiate baseball players 一级大学棒球运动员投球释放速度预测指标
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-02-09 DOI: 10.3233/ies-220133
Zach Farrel, A. Cocco, E. Dichiara, Paul C. Jones, B. C. Skutnik, Ryan L. Crotin, Ernie Rimer, P. Ivey, J. Caruso
BACKGROUND: Analytics, to quantify baseball pitch metrics, take on many forms and are unlike earlier methods to assess performance. OBJECTIVE: Quantify associations of flight kinematic and anthropometric variables on pitch release speed. METHODS: Male college-age pitchers (n= 182) from 2021 Division I games provided data. A 3D radar system collected data. Fixed effects regression OLS models analyzed data for sliders, changeups, curveballs, and fastballs. RESULTS: Spin rate (r= 0.017–0.514, p< 0.05) and vertical break (r= 0.374–0.703, p< 0.05) were positively associated with pitch release speed per pitch type. Release height (r=-0.286–0.051, p<-0.05) and pitch extension (r=-0.176–0.43, p< 0.05) were negatively associated with pitch release speed per pitch type except sliders. Spin axis had a negative association with pitch release speed for fastballs (r=-0.235, p< 0.05) and sliders (r=-0.311, p< 0.05), and a positive association (r= 0.029, p< 0.05) with curveball pitch release speed. Weight only related to pitch release speed for fastballs (r=-0.315, p< 0.05). Height did not impact pitch release speed. CONCLUSIONS: Results refute long-held beliefs of anthropometry’s influence on performance and instead reveal flight kinematics’ impact on baseball pitch release speed.
背景:分析,量化棒球球场指标,采取多种形式,不同于早期的方法来评估表现。目的:量化飞行运动学和人体测量变量与俯仰释放速度的关系。方法:来自2021年甲级联赛的男性大学年龄投手(n= 182)提供了数据。一个三维雷达系统收集数据。固定效应回归OLS模型分析了滑球、变速球、曲线球和快速球的数据。结果:旋转速率(r= 0.017 ~ 0.514, p< 0.05)和垂直断裂(r= 0.374 ~ 0.703, p< 0.05)与每节距类型的节距释放速度呈正相关。释放高度(r=-0.286 ~ 0.051, p<-0.05)和节距延伸(r=-0.176 ~ 0.43, p< 0.05)与除滑块外各节距类型的节距释放速度呈负相关。自旋轴与快速球(r=-0.235, p< 0.05)和滑球(r=-0.311, p< 0.05)的俯仰释放速度呈负相关,与曲线球的俯仰释放速度呈正相关(r= 0.029, p< 0.05)。重量只与快速球的投球释放速度有关(r=-0.315, p< 0.05)。高度不影响俯仰释放速度。结论:研究结果反驳了长期以来关于人体测量对运动表现影响的观点,而是揭示了飞行运动学对棒球投球释放速度的影响。
{"title":"Pitch release speed predictors for division I collegiate baseball players","authors":"Zach Farrel, A. Cocco, E. Dichiara, Paul C. Jones, B. C. Skutnik, Ryan L. Crotin, Ernie Rimer, P. Ivey, J. Caruso","doi":"10.3233/ies-220133","DOIUrl":"https://doi.org/10.3233/ies-220133","url":null,"abstract":"BACKGROUND: Analytics, to quantify baseball pitch metrics, take on many forms and are unlike earlier methods to assess performance. OBJECTIVE: Quantify associations of flight kinematic and anthropometric variables on pitch release speed. METHODS: Male college-age pitchers (n= 182) from 2021 Division I games provided data. A 3D radar system collected data. Fixed effects regression OLS models analyzed data for sliders, changeups, curveballs, and fastballs. RESULTS: Spin rate (r= 0.017–0.514, p< 0.05) and vertical break (r= 0.374–0.703, p< 0.05) were positively associated with pitch release speed per pitch type. Release height (r=-0.286–0.051, p<-0.05) and pitch extension (r=-0.176–0.43, p< 0.05) were negatively associated with pitch release speed per pitch type except sliders. Spin axis had a negative association with pitch release speed for fastballs (r=-0.235, p< 0.05) and sliders (r=-0.311, p< 0.05), and a positive association (r= 0.029, p< 0.05) with curveball pitch release speed. Weight only related to pitch release speed for fastballs (r=-0.315, p< 0.05). Height did not impact pitch release speed. CONCLUSIONS: Results refute long-held beliefs of anthropometry’s influence on performance and instead reveal flight kinematics’ impact on baseball pitch release speed.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45232954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of high intensity interval training on serum omentin-1 levels, lipid profile, and insulin resistance in obese men with type 2 diabetes mellitus 高强度间歇训练对2型糖尿病肥胖男性血清大网膜蛋白-1水平、血脂和胰岛素抵抗的影响
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-02-08 DOI: 10.3233/ies-220117
A. S. Ahmed, Marwan Abdou Ahmed
BACKGROUND: High-intensity interval training (HIIT) is an effective exercise method that could lead to favorable changes in obese and diabetic subjects. OBJECTIVE: To investigate the effects of HIIT on serum omentin-1 levels, lipid profile, and insulin resistance in diabetic obese men. METHODS: Fifty obese men suffering from T2DM with ages between 40 and 60 years were enrolled. Subjects were divided into two groups: the HIIT (n= 26) and control group (n= 24). The HIIT group subjects underwent 12 weeks (3 sessions per week) of HIIT program, while the control group subjects kept to their normal daily activities. Fasting blood glucose levels, serum omentin-1 levels, lipid profile, and insulin resistance were evaluated at baseline and after the experiment. RESULTS: HIIT resulted in significant improvements in the subjects’ body composition, serum omentin-1 levels, lipid profiles, fasting insulin, HOMA-IR (p< 0.05). Further, highly significant negative correlations were observed between serum omentin levels, on the one hand, and body mass index, body weight, and waist circumference, on the other. CONCLUSIONS: Twelve weeks of HIIT may be an effective training strategy to improve serum omentin-1 levels, body composition, lipid profile, and insulin sensitivity in diabetic obese men.
背景:高强度间歇训练(HIIT)是一种有效的运动方法,可使肥胖和糖尿病患者发生有利的变化。目的:研究HIIT对糖尿病肥胖男性血清大网膜蛋白1水平、脂质分布和胰岛素抵抗的影响。方法:纳入50名年龄在40至60岁之间的肥胖男性T2DM患者。受试者被分为两组:HIIT组(n=26)和对照组(n=24)。HIIT组受试者接受了为期12周(每周3次)的HIIT计划,而对照组受试对象则保持正常的日常活动。在基线和实验后评估空腹血糖水平、血清网膜蛋白-1水平、脂质状况和胰岛素抵抗。结果:HIIT显著改善了受试者的身体组成、血清网膜蛋白-1水平、脂质状况、空腹胰岛素、HOMA-IR(p<0.05)。此外,血清网膜蛋白水平与体重指数、体重和腰围之间存在高度显著的负相关。结论:12周的HIIT可能是改善糖尿病肥胖男性血清网膜蛋白-1水平、身体成分、脂质状况和胰岛素敏感性的有效训练策略。
{"title":"The impact of high intensity interval training on serum omentin-1 levels, lipid profile, and insulin resistance in obese men with type 2 diabetes mellitus","authors":"A. S. Ahmed, Marwan Abdou Ahmed","doi":"10.3233/ies-220117","DOIUrl":"https://doi.org/10.3233/ies-220117","url":null,"abstract":"BACKGROUND: High-intensity interval training (HIIT) is an effective exercise method that could lead to favorable changes in obese and diabetic subjects. OBJECTIVE: To investigate the effects of HIIT on serum omentin-1 levels, lipid profile, and insulin resistance in diabetic obese men. METHODS: Fifty obese men suffering from T2DM with ages between 40 and 60 years were enrolled. Subjects were divided into two groups: the HIIT (n= 26) and control group (n= 24). The HIIT group subjects underwent 12 weeks (3 sessions per week) of HIIT program, while the control group subjects kept to their normal daily activities. Fasting blood glucose levels, serum omentin-1 levels, lipid profile, and insulin resistance were evaluated at baseline and after the experiment. RESULTS: HIIT resulted in significant improvements in the subjects’ body composition, serum omentin-1 levels, lipid profiles, fasting insulin, HOMA-IR (p< 0.05). Further, highly significant negative correlations were observed between serum omentin levels, on the one hand, and body mass index, body weight, and waist circumference, on the other. CONCLUSIONS: Twelve weeks of HIIT may be an effective training strategy to improve serum omentin-1 levels, body composition, lipid profile, and insulin sensitivity in diabetic obese men.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41605491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effects of lower extremity muscle strength characteristics on grab and track start performance in young competitive swimmers 年轻竞技游泳运动员下肢肌肉力量特征对抓地和跑道起步性能的影响
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-01-19 DOI: 10.3233/ies-210208
Buse Argun, N. Demirci, Gökhan Umutlu
BACKGROUND: Limited data exist regarding segmental contributions of lower extremity muscles to the swim start performance during different start techniques in young swimmers. OBJECTIVE: To determine the differences in the kinematic parameters between the grab start (GS) and track start (TS) techniques and assess the interactions between the lower limb muscle strength and swim start performance. METHODS: A total of 40 swimmers, 20 girls (age: 13.70 ± 1.80 y, height: 161.65 ± 8.28 cm, body weight: 53.70 ± 8.65 kg) and 20 boys (age: 13.90 ± 1.45 y, height: 160.95 ± 12.70 cm, body weight: 52.95 ± 12.64 kg), 13–16 y of age, at the competitive level were recruited. Ankle, hip, and knee muscles were tested isokinetically at 60∘/s and the tests were spread over 24 h to avoid fatigue. Several elements relating to GS and TS were measured using a motion pick-up video camera. RESULTS: The angle of entry (EA) at water and knee joint angle (KA) were significantly greater during GS both for boys (EA: 44.18 ± 1.07∘ vs. 43.03 ± 1.28∘; KA: 112.10 ± 15.25∘ vs. 107.21 ± 21.13)∘ and girls (45.09 ± 1.28∘ vs. 43.36 ± 1.55∘; KA: 103.08 ± 11.21∘ vs. 97.45 ± 19.52∘, p< 0.05). Flight time (FT), flight distance (FD), KA, and flight velocity (FV) were significantly higher for boys both during GS and TS, whereas EA was significantly lower for boys during GS compared to girls (p< 0.05). Lower limb strength performance was positively significantly correlated with FT, FD, and FV both during GS and TS (p< 0.05). Hip muscle strength was inversely correlated with the EA both during GS and TS (p< 0.05). The combination of the knee, ankle, and hip extensor and flexor muscle strengths had a greater effect during GS (35% vs. 29%) in RT, (48% vs. 46%) in FT, (59% vs. 57%) in FD, and (63% vs. 57%) in FV compared to the TS. CONCLUSIONS: Incorporating lower body strength training into the swimming training schedule may improve swim start performance variables during grab start and track start techniques.
背景:在不同的起跑技术中,关于年轻游泳运动员下肢肌肉对游泳起跑表现的节段性贡献的数据有限。目的:确定抓斗起跑(GS)和径赛起跑(TS)技术之间运动学参数的差异,并评估下肢肌肉力量与游泳起跑性能之间的相互作用。方法:招募13-16岁竞技水平游泳运动员40名,其中女生20名(年龄:13.70±1.80 y,身高:161.65±8.28 cm,体重:53.70±8.65 kg),男生20名(年龄:13.90±1.45 y,身高:160.95±12.70 cm,体重:52.95±12.64 kg)。踝关节、臀部和膝盖肌肉在60°/s的情况下进行等速测试,测试时间为24小时,以避免疲劳。使用运动拾取摄像机测量了与GS和TS有关的几个元素。结果:男孩在GS时,水中入水角(EA)和膝关节角(KA)明显增大(EA: 44.18±1.07°vs 43.03±1.28°;KA: 112.10±15.25度vs. 107.21±21.13度)和女生(45.09±1.28度vs. 43.36±1.55度;卡:103.08±11.21∘vs 97.45±19.52∘,p < 0.05)。飞行时间(FT)、飞行距离(FD)、KA和飞行速度(FV)男生在GS和TS过程中均显著高于女生,而EA在GS过程中显著低于女生(p< 0.05)。GS和TS时下肢力量表现与FT、FD、FV均呈正相关(p< 0.05)。GS和TS时髋部肌力与EA呈负相关(p< 0.05)。与TS相比,膝关节、踝关节、髋关节伸肌和屈肌力量的组合在GS中(35%对29%),在RT中(48%对46%),在FD中(59%对57%),在FV中(63%对57%)的效果更大。结论:将下体力量训练纳入游泳训练计划可以改善抓斗起跑和跟踪起跑技术中的游泳起跑性能变量。
{"title":"The effects of lower extremity muscle strength characteristics on grab and track start performance in young competitive swimmers","authors":"Buse Argun, N. Demirci, Gökhan Umutlu","doi":"10.3233/ies-210208","DOIUrl":"https://doi.org/10.3233/ies-210208","url":null,"abstract":"BACKGROUND: Limited data exist regarding segmental contributions of lower extremity muscles to the swim start performance during different start techniques in young swimmers. OBJECTIVE: To determine the differences in the kinematic parameters between the grab start (GS) and track start (TS) techniques and assess the interactions between the lower limb muscle strength and swim start performance. METHODS: A total of 40 swimmers, 20 girls (age: 13.70 ± 1.80 y, height: 161.65 ± 8.28 cm, body weight: 53.70 ± 8.65 kg) and 20 boys (age: 13.90 ± 1.45 y, height: 160.95 ± 12.70 cm, body weight: 52.95 ± 12.64 kg), 13–16 y of age, at the competitive level were recruited. Ankle, hip, and knee muscles were tested isokinetically at 60∘/s and the tests were spread over 24 h to avoid fatigue. Several elements relating to GS and TS were measured using a motion pick-up video camera. RESULTS: The angle of entry (EA) at water and knee joint angle (KA) were significantly greater during GS both for boys (EA: 44.18 ± 1.07∘ vs. 43.03 ± 1.28∘; KA: 112.10 ± 15.25∘ vs. 107.21 ± 21.13)∘ and girls (45.09 ± 1.28∘ vs. 43.36 ± 1.55∘; KA: 103.08 ± 11.21∘ vs. 97.45 ± 19.52∘, p< 0.05). Flight time (FT), flight distance (FD), KA, and flight velocity (FV) were significantly higher for boys both during GS and TS, whereas EA was significantly lower for boys during GS compared to girls (p< 0.05). Lower limb strength performance was positively significantly correlated with FT, FD, and FV both during GS and TS (p< 0.05). Hip muscle strength was inversely correlated with the EA both during GS and TS (p< 0.05). The combination of the knee, ankle, and hip extensor and flexor muscle strengths had a greater effect during GS (35% vs. 29%) in RT, (48% vs. 46%) in FT, (59% vs. 57%) in FD, and (63% vs. 57%) in FV compared to the TS. CONCLUSIONS: Incorporating lower body strength training into the swimming training schedule may improve swim start performance variables during grab start and track start techniques.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47311462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correlations between one-repetition maximum weights of different back squat depths 不同后蹲深度单次重复最大重量之间的相关性
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-12-29 DOI: 10.3233/ies-220106
Shota Enoki, Junpei Shiba, Taisei Hakozaki, Yuki Suzuki, K. Kuzuhara
BACKGROUND: Although squat depth determines the weight that can be lifted while squatting, it is unclear whether the One-repetition maximum (1RM) at one squat depth can be used to estimate the 1RM at another squat depth. OBJECTIVE: To determine the correlations between 1RM weights at different back squat depths (BSQs) in frequently trained male collegiate athletes. METHODS: This cross-sectional study included 26 male collegiate athletes. Body composition, lower extremity length, and 1RM of BSQ were measured. 1RM of BSQ was measured at three positions (quarter, half and parallel positions), defined as 45 degrees of knee flexion (quarter, Q-SQ), 90 degrees of knee flexion (half, H-SQ), and femur parallel to the ground (parallel, P-SQ), respectively. All testing was conducted by a certified strength and conditioning specialist. Pearson’s correlation analysis and Spearman’s rank correlation were used to examine the correlation between 1RM at each squat depth. RESULTS: There was a significant correlation between 1RM in the H-SQ and P-SQ positions (p< 0.001, r= 0.725, R2= 0.526, y= 1.0728x+ 24.641), but no significant correlation between 1RM of Q-SQ and P-SQ, and 1RM of Q-SQ and H-SQ. There were significant correlations between the 1RM of Q-SQ and height (p= 0.001, r= 0.594), and with the length of the lower extremities (p= 0.002, r= 0.586). CONCLUSIONS: Mutual estimation of the 1RM of H-SQ or P-SQ from the 1RM of the other squat position is possible. Estimation of the 1RM of Q-SQ from the 1RM of H-SQ or P-SQ is, however, difficult, and must be measured separately. Future studies should be conducted with larger sample sizes, in athletes of various sports, and in females.
背景:虽然深蹲深度决定了深蹲时可以举起的重量,但尚不清楚一个深蹲深度的一次重复最大值(1RM)是否可以用于估计另一个深坐深度的1RM。目的:确定经常训练的男大学生运动员在不同后蹲深度(BSQ)下1RM重量之间的相关性。方法:这项横断面研究包括26名男大学生运动员。测量身体成分、下肢长度和BSQ的1RM。在三个位置(四分之一、一半和平行位置)测量BSQ的1RM,分别定义为45度膝关节屈曲(四分之四,Q-SQ)、90度膝关节弯曲(一半,H-SQ)和股骨平行于地面(平行,P-SQ)。所有测试均由经过认证的强度和调节专家进行。Pearson相关分析和Spearman秩相关用于检验每个深蹲深度1RM之间的相关性。结果:H-SQ和P-SQ位置的1RM之间存在显著相关性(P<0.001,r=0.725,R2=0.526,y=1.0728x+24.641),但Q-SQ和P-SQ的1RM以及Q-SQ与H-SQ的IRM之间没有显著相关性。Q-SQ的1RM与身高(p=0.001,r=0.594)和下肢长度(p=0.002,r=0.586)之间存在显著相关性。然而,从H-SQ或P-SQ的1RM估计Q-SQ的IRM是困难的,并且必须单独测量。未来的研究应该在各种运动项目的运动员和女性中使用更大的样本量。
{"title":"Correlations between one-repetition maximum weights of different back squat depths","authors":"Shota Enoki, Junpei Shiba, Taisei Hakozaki, Yuki Suzuki, K. Kuzuhara","doi":"10.3233/ies-220106","DOIUrl":"https://doi.org/10.3233/ies-220106","url":null,"abstract":"BACKGROUND: Although squat depth determines the weight that can be lifted while squatting, it is unclear whether the One-repetition maximum (1RM) at one squat depth can be used to estimate the 1RM at another squat depth. OBJECTIVE: To determine the correlations between 1RM weights at different back squat depths (BSQs) in frequently trained male collegiate athletes. METHODS: This cross-sectional study included 26 male collegiate athletes. Body composition, lower extremity length, and 1RM of BSQ were measured. 1RM of BSQ was measured at three positions (quarter, half and parallel positions), defined as 45 degrees of knee flexion (quarter, Q-SQ), 90 degrees of knee flexion (half, H-SQ), and femur parallel to the ground (parallel, P-SQ), respectively. All testing was conducted by a certified strength and conditioning specialist. Pearson’s correlation analysis and Spearman’s rank correlation were used to examine the correlation between 1RM at each squat depth. RESULTS: There was a significant correlation between 1RM in the H-SQ and P-SQ positions (p< 0.001, r= 0.725, R2= 0.526, y= 1.0728x+ 24.641), but no significant correlation between 1RM of Q-SQ and P-SQ, and 1RM of Q-SQ and H-SQ. There were significant correlations between the 1RM of Q-SQ and height (p= 0.001, r= 0.594), and with the length of the lower extremities (p= 0.002, r= 0.586). CONCLUSIONS: Mutual estimation of the 1RM of H-SQ or P-SQ from the 1RM of the other squat position is possible. Estimation of the 1RM of Q-SQ from the 1RM of H-SQ or P-SQ is, however, difficult, and must be measured separately. Future studies should be conducted with larger sample sizes, in athletes of various sports, and in females.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47711223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relationships between isokinetic knee and shoulder peak strength with maximal punch force in boxing athletes 拳击运动员等速膝关节和肩部峰值力量与最大出拳力的关系
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-12-29 DOI: 10.3233/ies-220110
Zixiang Zhou, Chao Chen, Wenjuan Yi, Xin Chen, Weijia Cui, Rui Wu, Dexin Wang
BACKGROUND: Muscle strength in the upper and lower limbs is a major contributing factor to punch force and is one of the keys to success in boxing. OBJECTIVE: This study aimed to investigate the relationship between knee and shoulder strength and punching force in boxers. METHODS: Twenty-one boxers completed knee flexion, knee extension, shoulder external rotation and internal rotation isokinetic concentric contractions at slow (60∘/s) and fast (180∘/s) angular velocities. Maximal punch force tests included lead and rear straight arm punching were assessed using a force platform. RESULTS: Pearson’s correlation coefficients revealed that knee extension (r= 0.646–0.848) and knee flexion (r= 0.470–0.646) peak torques were moderately to very strongly correlated with maximal punching force in lead and rear arms. The shoulder internal rotation (r= 0.492–0.634) and shoulder external rotation (r= 0.441–0.588) peak torques were moderate to strongly correlated with maximal punching force. Moreover, knee extension peak torques at 60∘/s had higher correlation with maximal punching force. In contrast, shoulder internal rotation peak torques at 180∘/s had a larger correlation with maximal punching force. CONCLUSIONS: The main findings indicated the importance of the capacity to generate maximum knee extension and rapid shoulder internal rotation strength, contributing to punch force production.
背景:上肢和下肢的肌肉力量是影响拳击力量的主要因素,也是拳击成功的关键之一。目的:探讨拳击手膝肩部力量与出拳力的关系。方法:21名拳击手分别以慢速(60°/s)和快速(180°/s)角速度完成膝关节屈曲、膝关节伸展、肩关节外旋和内旋等速同心收缩。最大冲压力测试包括前直臂和后直臂冲压,使用力平台进行评估。结果:Pearson相关系数显示,膝关节伸展(r=0.646–0.848)和膝关节屈曲(r=0.470–0.646)峰值扭矩与前臂和后臂的最大冲击力呈中度至极强相关性。肩部内旋(r=0.492–0.634)和肩部外旋(r=0.441–0.588)峰值扭矩与最大冲压力呈中等至强烈相关。此外,60∘/s的伸膝峰值扭矩与最大冲压力具有更高的相关性。相反,肩部内旋峰值扭矩在180∘/s时与最大冲压力的相关性更大。结论:主要研究结果表明,产生最大膝盖伸展和快速肩部内旋力量的能力很重要,有助于产生冲击力。
{"title":"Relationships between isokinetic knee and shoulder peak strength with maximal punch force in boxing athletes","authors":"Zixiang Zhou, Chao Chen, Wenjuan Yi, Xin Chen, Weijia Cui, Rui Wu, Dexin Wang","doi":"10.3233/ies-220110","DOIUrl":"https://doi.org/10.3233/ies-220110","url":null,"abstract":"BACKGROUND: Muscle strength in the upper and lower limbs is a major contributing factor to punch force and is one of the keys to success in boxing. OBJECTIVE: This study aimed to investigate the relationship between knee and shoulder strength and punching force in boxers. METHODS: Twenty-one boxers completed knee flexion, knee extension, shoulder external rotation and internal rotation isokinetic concentric contractions at slow (60∘/s) and fast (180∘/s) angular velocities. Maximal punch force tests included lead and rear straight arm punching were assessed using a force platform. RESULTS: Pearson’s correlation coefficients revealed that knee extension (r= 0.646–0.848) and knee flexion (r= 0.470–0.646) peak torques were moderately to very strongly correlated with maximal punching force in lead and rear arms. The shoulder internal rotation (r= 0.492–0.634) and shoulder external rotation (r= 0.441–0.588) peak torques were moderate to strongly correlated with maximal punching force. Moreover, knee extension peak torques at 60∘/s had higher correlation with maximal punching force. In contrast, shoulder internal rotation peak torques at 180∘/s had a larger correlation with maximal punching force. CONCLUSIONS: The main findings indicated the importance of the capacity to generate maximum knee extension and rapid shoulder internal rotation strength, contributing to punch force production.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49015475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sex differences in kinematics and quadriceps activity for fast isokinetic knee extension 等速膝关节快速伸展运动中运动学和股四头肌活动的性别差异
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-12-28 DOI: 10.3233/ies-220050
Jeongwoo Jeon, DongYeop Lee, Jae-Ho Yu, Jinseop S. Kim, S. Kim, Jiheon Hong
BACKGROUND: The quantitative recruitment of motor units depends on specific demands, including movement velocity. DNA microarrays differ according to sex, and these sex-related differences affect the fiber type composition. OBJECTIVE: The aim of this study is to demonstrate inter-sex differences in the isokinetic parameters, isokinetic phases, and muscle activities and to investigate the correlation between muscle activity and isokinetic data. METHODS: A total of 41 healthy adults (20 male, 21 female) performed concentric knee extension at angular velocities of 60∘/s, 180∘/s, and 240∘/s. The outcome measures consisted of the isokinetic peak moment (PM), normalized PM (PM/BW), total work, and power, alongside the acceleration, iso-speed and deceleration, sub-phases. Muscle activity was recorded from the rectus femoris, vastus lateralis, and vastus medialis using surface EMG. RESULTS: There were significant two-factor main effect and interaction between sex and angular velocity on the power of knee extension and isokinetic phase (p< 0.05). As the velocity increased, the increase in power of males was greater than that of females. In contrast, with the increase in velocity, PM, PM/BW, and total work decreased, but no significant interaction was observed between velocity and sex. At high velocity, males showed higher acceleration ability than females. CONCLUSION: The sex-dependent responses to velocity were more affected by differences in total movement time than force production. Fast isokinetic exercise should consider the acceleration ability rather than the ability to produce force.
背景:运动单位的定量招募取决于特定的需求,包括运动速度。DNA微阵列因性别而异,这些与性别相关的差异会影响纤维类型的组成。目的:本研究的目的是证明等速参数、等速时相和肌肉活动的性别差异,并研究肌肉活动与等速数据之间的相关性。方法:共有41名健康成年人(20名男性,21名女性)以60、180和240的角速度进行同心膝关节伸展。结果测量包括等速峰值力矩(PM)、归一化PM(PM/BW)、总功和功率,以及加速度、等速和减速度子阶段。使用表面肌电记录股直肌、股外侧肌和股内侧肌的肌肉活动。结果:性别和角速度对膝关节伸展力和等速期的影响存在显著的双因素主效应和交互作用(p<0.05),随着速度的增加,男性的力量增加幅度大于女性。相反,随着速度的增加,PM、PM/BW和总功减少,但速度和性别之间没有观察到显著的相互作用。在高速下,雄性表现出比雌性更高的加速能力。结论:对速度的性别依赖性反应受总运动时间差异的影响大于受力产生的影响。快速等速运动应该考虑加速能力,而不是产生力量的能力。
{"title":"Sex differences in kinematics and quadriceps activity for fast isokinetic knee extension","authors":"Jeongwoo Jeon, DongYeop Lee, Jae-Ho Yu, Jinseop S. Kim, S. Kim, Jiheon Hong","doi":"10.3233/ies-220050","DOIUrl":"https://doi.org/10.3233/ies-220050","url":null,"abstract":"BACKGROUND: The quantitative recruitment of motor units depends on specific demands, including movement velocity. DNA microarrays differ according to sex, and these sex-related differences affect the fiber type composition. OBJECTIVE: The aim of this study is to demonstrate inter-sex differences in the isokinetic parameters, isokinetic phases, and muscle activities and to investigate the correlation between muscle activity and isokinetic data. METHODS: A total of 41 healthy adults (20 male, 21 female) performed concentric knee extension at angular velocities of 60∘/s, 180∘/s, and 240∘/s. The outcome measures consisted of the isokinetic peak moment (PM), normalized PM (PM/BW), total work, and power, alongside the acceleration, iso-speed and deceleration, sub-phases. Muscle activity was recorded from the rectus femoris, vastus lateralis, and vastus medialis using surface EMG. RESULTS: There were significant two-factor main effect and interaction between sex and angular velocity on the power of knee extension and isokinetic phase (p< 0.05). As the velocity increased, the increase in power of males was greater than that of females. In contrast, with the increase in velocity, PM, PM/BW, and total work decreased, but no significant interaction was observed between velocity and sex. At high velocity, males showed higher acceleration ability than females. CONCLUSION: The sex-dependent responses to velocity were more affected by differences in total movement time than force production. Fast isokinetic exercise should consider the acceleration ability rather than the ability to produce force.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49441513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of instability resistance training on static postural control of cognitively impaired older adults 抗不稳定训练对认知障碍老年人静态姿势控制的影响
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-12-28 DOI: 10.3233/ies-220091
V. Y. S. Nascimento, B. R. Cavalcante, Francis Trombini de Souza, Mateus Santos Silva, Dayane Tays da Silva, M. F. de Souza, R. D. de Araújo
BACKGROUND: Mounting evidence has demonstrated functional and cognitive-related benefits after Instability Resistance Training (IRT) in individuals, healthy as wellas patients presenting with neurological disorders. However, whether IRT may play a significant role in the postural control of older adults has not been established. OBJECTIVE: To evaluate the effects of 12- weeks of IRT on static postural control of older adults with subjective cognitive impairment. METHODS: In this randomized controlled trial, a total of 67 participants (aged 65 years and older) were randomly assigned to either 12 weeks of IRT (n= 22), traditional resistance training (RT) (n= 23), or a health education control group (CON) (n= 22). Static postural control was assessed using a force platform that recorded the displacement amplitude of the center of pressure (CoP) in the anteroposterior (AP) and mediolateral (ML) directions in bipedal support (30 seconds) with eyes open and closed. RESULTS: All groups increased AP displacement in the conditions of eyes open and closed. During the eyes-closed condition, only the IRT group increased the ML displacement. No between-group differences were detected in any postural control (p> 0.05). CONCLUSIONS: 12 weeks of IRT does not improve the static postural control in older adults with cognitive impairment.
背景:越来越多的证据表明,不稳定阻力训练(IRT)对个体,健康以及神经系统疾病患者的功能和认知相关益处。然而,IRT是否在老年人的姿势控制中发挥重要作用尚未确定。目的:评价12周IRT对主观认知障碍老年人静态姿势控制的影响。方法:在这项随机对照试验中,共有67名参与者(65岁及以上)被随机分配到12周的IRT (n= 22),传统阻力训练(RT) (n= 23)或健康教育对照组(n= 22)。静态姿势控制通过力平台进行评估,该力平台记录两足支撑下压力中心(CoP)在前后(AP)和中外侧(ML)方向的位移幅度(30秒),同时眼睛睁开和闭上。结果:各组在睁眼和闭眼条件下,AP位移均增加。在闭眼状态下,只有IRT组增加了ML位移。在任何姿势对照中,组间差异均无统计学意义(p < 0.05)。结论:12周的IRT并不能改善老年认知障碍患者的静态姿势控制。
{"title":"Effects of instability resistance training on static postural control of cognitively impaired older adults","authors":"V. Y. S. Nascimento, B. R. Cavalcante, Francis Trombini de Souza, Mateus Santos Silva, Dayane Tays da Silva, M. F. de Souza, R. D. de Araújo","doi":"10.3233/ies-220091","DOIUrl":"https://doi.org/10.3233/ies-220091","url":null,"abstract":"BACKGROUND: Mounting evidence has demonstrated functional and cognitive-related benefits after Instability Resistance Training (IRT) in individuals, healthy as wellas patients presenting with neurological disorders. However, whether IRT may play a significant role in the postural control of older adults has not been established. OBJECTIVE: To evaluate the effects of 12- weeks of IRT on static postural control of older adults with subjective cognitive impairment. METHODS: In this randomized controlled trial, a total of 67 participants (aged 65 years and older) were randomly assigned to either 12 weeks of IRT (n= 22), traditional resistance training (RT) (n= 23), or a health education control group (CON) (n= 22). Static postural control was assessed using a force platform that recorded the displacement amplitude of the center of pressure (CoP) in the anteroposterior (AP) and mediolateral (ML) directions in bipedal support (30 seconds) with eyes open and closed. RESULTS: All groups increased AP displacement in the conditions of eyes open and closed. During the eyes-closed condition, only the IRT group increased the ML displacement. No between-group differences were detected in any postural control (p> 0.05). CONCLUSIONS: 12 weeks of IRT does not improve the static postural control in older adults with cognitive impairment.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44863384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Injury prevention programs including balance exercises with compliance and follow-up reduce the incidence of knee injuries in athletes: A systematic review and meta-analysis 损伤预防项目包括平衡运动的依从性和随访减少运动员膝盖损伤的发生率:系统回顾和荟萃分析
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-12-22 DOI: 10.3233/ies-220084
W. A. Al Attar, Hussain Ghulam, Saud Al Arifi, Ahmed I. Alomar, Saad Alhosaini, Sami Alharbi, Yasser Alraddadi, Ross H. Sanders
BACKGROUND: The knee is one of the most common injuries in sports. However, the incidence of knee injuries can be decreased by enhancing balance and neuromuscular control. OBJECTIVE: The aim of this systematic review and meta-analysis was to investigate how injury prevention programs (IPPs) that include balance training influence knee injury rates in athletes. METHODS: Data were obtained from different databases (1985–2021). Only randomised controlled trials that used IPPs that include balance training, were considered. Two investigators extracted data from the qualifying documents. The critical outcome data elements derived from the included studies were the number of ACL/knee injuries, ACL/knee injury rates, exposure hours, compliance rate, and follow-up duration. RESULTS: Compared to the control groups, those who participated in the IPP had a 54% lower risk of knee injuries per 1000 hours of exposure (IRR 0.457 (95% CI 0.346–0.603), P= 0.001) and a 60% lower risk of ACL injuries per 1000 hours of exposure (IRR 0.401 (95% CI 0.215–0.750), P= 0.004). CONCLUSIONS: IPPs that include balance training may reduce the risk of knee injuries.
背景:膝关节是运动中最常见的损伤之一。然而,膝关节损伤的发生率可以通过加强平衡和神经肌肉控制来降低。目的:本系统综述和荟萃分析的目的是调查包括平衡训练在内的损伤预防计划(ipp)如何影响运动员的膝关节损伤率。方法:数据来自不同的数据库(1985-2021)。我们只考虑了使用包含平衡训练的ipp的随机对照试验。两名调查人员从合格文件中提取了数据。从纳入的研究中得出的关键结局数据要素是ACL/膝关节损伤的数量、ACL/膝关节损伤率、暴露时间、依从率和随访时间。结果:与对照组相比,参加IPP的患者每1000小时暴露的膝关节损伤风险降低54% (IRR 0.457 (95% CI 0.346-0.603), P= 0.001),每1000小时暴露的ACL损伤风险降低60% (IRR 0.401 (95% CI 0.215-0.750), P= 0.004)。结论:包括平衡训练的ipp可以降低膝关节损伤的风险。
{"title":"Injury prevention programs including balance exercises with compliance and follow-up reduce the incidence of knee injuries in athletes: A systematic review and meta-analysis","authors":"W. A. Al Attar, Hussain Ghulam, Saud Al Arifi, Ahmed I. Alomar, Saad Alhosaini, Sami Alharbi, Yasser Alraddadi, Ross H. Sanders","doi":"10.3233/ies-220084","DOIUrl":"https://doi.org/10.3233/ies-220084","url":null,"abstract":"BACKGROUND: The knee is one of the most common injuries in sports. However, the incidence of knee injuries can be decreased by enhancing balance and neuromuscular control. OBJECTIVE: The aim of this systematic review and meta-analysis was to investigate how injury prevention programs (IPPs) that include balance training influence knee injury rates in athletes. METHODS: Data were obtained from different databases (1985–2021). Only randomised controlled trials that used IPPs that include balance training, were considered. Two investigators extracted data from the qualifying documents. The critical outcome data elements derived from the included studies were the number of ACL/knee injuries, ACL/knee injury rates, exposure hours, compliance rate, and follow-up duration. RESULTS: Compared to the control groups, those who participated in the IPP had a 54% lower risk of knee injuries per 1000 hours of exposure (IRR 0.457 (95% CI 0.346–0.603), P= 0.001) and a 60% lower risk of ACL injuries per 1000 hours of exposure (IRR 0.401 (95% CI 0.215–0.750), P= 0.004). CONCLUSIONS: IPPs that include balance training may reduce the risk of knee injuries.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47905158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immediate association of navicular bone height and plantar intrinsic muscle size with toe flexion task: An ultrasound-based study 舟骨高度和足底固有肌肉大小与脚趾屈曲任务的直接关联:一项基于超声的研究
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-11-18 DOI: 10.3233/ies-220092
Honoka Ishihara, M. Komiya, Hinata Esaki, Koki Tsuchida, Ayano Ishida, T. Tashiro, S. Tsutsumi, N. Maeda, Y. Urabe
BACKGROUND: Intrinsic foot muscle (IFM) dysfunction and poor foot arch are associated with various foot conditions. Toe flexor exercise (TFE) has been used to improve it; however, the immediate effects of TFE on each IFM and how it relates to changes in navicular bone height (NH) are unclear. OBJECTIVE: This study aimed to investigate acute muscle swelling in the IFM after TFE and the association between changes in NH and IFM size. METHODS: Fourteen adults participated in this study. NH and cross-sectional area (CSA) of the IFM were acquired pre and post- TFE. The CSA of the IFM, including the abductor hallucis (AbH), flexor hallucis brevis, flexor digitorum brevis, and quadratus plantae, was acquired with ultrasonography. In the TFE, each participant completed five sets of eight repetitions with maximum strength. RESULTS: The NH and CSA of all IFM significantly increased significantly post-TFE (p< 0.01). Only the increase in AbH was moderately and positively correlated with the change in NH (r= 0.54, p< 0.01). CONCLUSION: This study suggests that the acute swelling of AbH after TFE is associated with an immediate increase in NH, supporting the important role of AbH in the formation of foot arch.
背景:足部固有肌(IFM)功能障碍和足弓不良与各种足部状况有关。脚趾屈肌锻炼(TFE)已被用来改善它;然而,TFE对每种IFM的直接影响以及它与舟骨高度(NH)变化的关系尚不清楚。目的:本研究旨在研究TFE后IFM的急性肌肉肿胀以及NH变化与IFM大小之间的关系。方法:14名成年人参与了这项研究。NH和IFM的横截面积(CSA)分别在TFE前后进行测量。IFM的CSA,包括拇展肌(AbH)、拇短屈肌、趾短屈肌和植物方肌,通过超声获得。在TFE中,每个参与者以最大的力量完成了五组八次重复。结果:TFE后所有IFM的NH和CSA均显著增加(p<0.01),只有AbH的增加与NH的变化呈中度正相关(r=0.54,p<0.01)。
{"title":"Immediate association of navicular bone height and plantar intrinsic muscle size with toe flexion task: An ultrasound-based study","authors":"Honoka Ishihara, M. Komiya, Hinata Esaki, Koki Tsuchida, Ayano Ishida, T. Tashiro, S. Tsutsumi, N. Maeda, Y. Urabe","doi":"10.3233/ies-220092","DOIUrl":"https://doi.org/10.3233/ies-220092","url":null,"abstract":"BACKGROUND: Intrinsic foot muscle (IFM) dysfunction and poor foot arch are associated with various foot conditions. Toe flexor exercise (TFE) has been used to improve it; however, the immediate effects of TFE on each IFM and how it relates to changes in navicular bone height (NH) are unclear. OBJECTIVE: This study aimed to investigate acute muscle swelling in the IFM after TFE and the association between changes in NH and IFM size. METHODS: Fourteen adults participated in this study. NH and cross-sectional area (CSA) of the IFM were acquired pre and post- TFE. The CSA of the IFM, including the abductor hallucis (AbH), flexor hallucis brevis, flexor digitorum brevis, and quadratus plantae, was acquired with ultrasonography. In the TFE, each participant completed five sets of eight repetitions with maximum strength. RESULTS: The NH and CSA of all IFM significantly increased significantly post-TFE (p< 0.01). Only the increase in AbH was moderately and positively correlated with the change in NH (r= 0.54, p< 0.01). CONCLUSION: This study suggests that the acute swelling of AbH after TFE is associated with an immediate increase in NH, supporting the important role of AbH in the formation of foot arch.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45246641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of the intensity of interval training on aerobic fitness, body composition and resting metabolic rate of women with overweight or obesity: A randomized trial 间歇训练强度对超重或肥胖女性有氧健身、身体成分和静息代谢率的影响:一项随机试验
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-10-24 DOI: 10.3233/ies-220067
L. V. Andreato, A. Keech, Valmir Laurentino da Silva, Walker William Francisco, A. Andrade, Felipe Tiburcio Milani, Laura de Souza Genta, B. Branco
BACKGROUND: Moderate-intensity interval training (MIIT) may be a viable exercise format for improving body composition, aerobic fitness, and health-related variables. OBJECTIVES: This randomized trial aimed to analyze the effect of MIIT or high-intensity interval training (HIIT) on aerobic fitness, body composition variables, and resting metabolic rate (RMR) in women with overweight or obesity. METHODS: 31 sedentary adult women with overweight or obesity performed 7 weeks × 3 weekly sessions of either HIIT or MIIT. Physical and physiological tests were applied before and after training. RESULTS: In both analyses (intention-to-treat and by adherence to the training), aerobic fitness showed a time effect (p= 0.041 and p= 0.015), but without differences between groups (p> 0.05). No group (HIIT vs. MIIT), time (pre vs. post), or interaction effects (group vs. time) were found for RMR, body composition markers (fat mass, body fat percentage, lean mass), or body mass index – BMI (p> 0.05). In addition, MIIT induced a relatively high drop-out rate. CONCLUSIONS: This study suggested that the short-term (7-weeks) interval exercise training was effective for increasing aerobic fitness, and moderate-intensity intervals were as effective as high-intensity intervals. However, neither training format was effective for changing RMR, body composition variables, or BMI of women with overweight or obesity. Clinical trial ID: RBR-9jd7b7.
背景:中等强度间歇训练(MIIT)可能是一种可行的运动形式,可以改善身体成分、有氧健身和健康相关变量。目的:这项随机试验旨在分析MIIT或高强度间歇训练(HIIT)对超重或肥胖女性有氧健身、身体成分变量和静息代谢率(RMR)的影响。方法:31名超重或肥胖的久坐成年女性进行7周×3周的HIIT或MIIT治疗。在训练前后进行身体和生理测试。结果:在两项分析中(治疗意向和坚持训练),有氧健身显示出时间效应(p=0.041和p=0.015),但各组之间没有差异(p>0.05)。RMR、身体成分标志物(脂肪量、体脂百分比、瘦体重)、,或体重指数-BMI(p>0.05)。此外,MIIT导致了相对较高的辍学率。结论:本研究表明,短期(7周)间歇运动训练对提高有氧健身是有效的,中等强度间歇运动与高强度间歇运动一样有效。然而,这两种训练形式都不能有效改变超重或肥胖女性的RMR、身体成分变量或BMI。临床试验ID:RBR-9jd7b7。
{"title":"Effects of the intensity of interval training on aerobic fitness, body composition and resting metabolic rate of women with overweight or obesity: A randomized trial","authors":"L. V. Andreato, A. Keech, Valmir Laurentino da Silva, Walker William Francisco, A. Andrade, Felipe Tiburcio Milani, Laura de Souza Genta, B. Branco","doi":"10.3233/ies-220067","DOIUrl":"https://doi.org/10.3233/ies-220067","url":null,"abstract":"BACKGROUND: Moderate-intensity interval training (MIIT) may be a viable exercise format for improving body composition, aerobic fitness, and health-related variables. OBJECTIVES: This randomized trial aimed to analyze the effect of MIIT or high-intensity interval training (HIIT) on aerobic fitness, body composition variables, and resting metabolic rate (RMR) in women with overweight or obesity. METHODS: 31 sedentary adult women with overweight or obesity performed 7 weeks × 3 weekly sessions of either HIIT or MIIT. Physical and physiological tests were applied before and after training. RESULTS: In both analyses (intention-to-treat and by adherence to the training), aerobic fitness showed a time effect (p= 0.041 and p= 0.015), but without differences between groups (p> 0.05). No group (HIIT vs. MIIT), time (pre vs. post), or interaction effects (group vs. time) were found for RMR, body composition markers (fat mass, body fat percentage, lean mass), or body mass index – BMI (p> 0.05). In addition, MIIT induced a relatively high drop-out rate. CONCLUSIONS: This study suggested that the short-term (7-weeks) interval exercise training was effective for increasing aerobic fitness, and moderate-intensity intervals were as effective as high-intensity intervals. However, neither training format was effective for changing RMR, body composition variables, or BMI of women with overweight or obesity. Clinical trial ID: RBR-9jd7b7.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46677647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Isokinetics and Exercise Science
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1