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Acute effects of local vibration and visual feedback on the pelvic floor muscle training in Japanese healthy adults: A cross-over study 局部振动和视觉反馈对日本健康成年人盆底肌训练的急性影响:一项交叉研究
IF 0.7 4区 医学 Q3 Health Professions Pub Date : 2022-10-21 DOI: 10.3233/ies-220054
R. Mizuta, N. Maeda, M. Komiya, Honoka Ishihara, T. Tashiro, M. Yoshimi, Sakura Oda, Y. Urabe
BACKGROUND: Those undergoing pelvic floor muscle training (PFMT) often experience difficulty in perception; therefore, an easier PFMT method should be devised. OBJECTIVE: To determine the effectiveness of combining PFMT with either vibration stimulation or visual feedback provided by a branded cushion (not a prototype) in increasing PFM muscle activity. Since PFM does not involve large joint movements, muscle activity was a suitable indicator. METHODS: Twenty healthy adults were included in this study. All participants performed PFMT under three conditions using a branded cushion: vibration stimulation, visual feedback, and a control. All three conditions were provided separately. PFM activity of the midline of the perineum at two points was recorded as the root mean square measured using PFM electromyography, measured twice for each condition. Muscle activity ratio was obtained by calculating maximum voluntary contraction of PFM in pre- and post-PFMT conditions. RESULTS: PFM activity and muscle activity ratio were both significantly higher following PFMT under vibration stimulation and visual feedback conditions (p< 0.01, p< 0.01, respectively). CONCLUSIONS: PFMT accompanied by vibration stimulation or visual feedback could immediately raise PFM muscle activity. We believe this study contributes to improving PFMT efficiency by suggesting more suitable PFMT methods.
背景:那些接受盆底肌肉训练(PFMT)的人经常经历感知困难;因此,应该设计一种更简单的PFMT方法。目的:确定将PFMT与品牌衬垫(非原型)提供的振动刺激或视觉反馈相结合在增加PFM肌肉活动方面的有效性。由于PFM不涉及大的关节运动,肌肉活动是一个合适的指标。方法:本研究纳入20名健康成年人。所有参与者在三种条件下使用品牌垫子进行PFMT:振动刺激、视觉反馈和对照。这三个条件都是单独提供的。会阴中线两点的PFM活动记录为使用PFM肌电图测量的均方根,每种情况测量两次。通过计算PFM在PFMT前和后条件下的最大自主收缩来获得肌肉活动率。结果:在振动刺激和视觉反馈条件下,PFMT后PFM活性和肌肉活性比率均显著升高(分别p<0.01和p<0.01)。结论:PFMT伴随振动刺激或视觉反馈可以立即提高PFM肌肉的活性。我们相信,这项研究通过提出更合适的PFMT方法,有助于提高PFMT的效率。
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引用次数: 0
Comparison of the effects of deadlift versus back squat on jumping, acceleration, and change of direction 提举和后蹲对跳跃、加速和改变方向的影响比较
IF 0.7 4区 医学 Q3 Health Professions Pub Date : 2022-09-28 DOI: 10.3233/ies-220068
Junpei Shiba, R. Kuramochi, Gaku Tokutake, Shota Enoki, Yuta Nakamura, Yukitoshi Kotoh
BACKGROUND: An advantage that deadlift (DL) has over back squat (BSQ) is that the latter requires additional equipment (i.e., squat rack). Accordingly, if DL can lead to positive effects on jumping, acceleration, and change of direction, DL could present as a more practical training exercise than that of BSQ. OBJECTIVE: This study aimed to compare the effects of DL and BSQ on jumping, acceleration, and change of direction. METHODS: Twenty-three men (12 in the DL group [age: 20.3 ± 1.4 years old, height: 169.6 ± 6.7 cm, body weight: 65.7 ± 11.2 kg] and 11 in the BSQ group [age: 20.2 ± 1.9 years old, height: 171.5 ± 4.8 cm, body weight: 70.1 ± 6.8 kg]) participated in this study. The participants performed five repetitions maximum (RM) of DL and BSQ, and the isokinetic strength of hip joint extension, muscle thickness of the gluteus maximus and hamstrings, countermovement jump (CMJ) height, 10 m sprint time, and T-test results were measured. The 1RM was estimated using the 5RM and normalized to body weight (BW). Both groups performed supervised DL and BSQ training for eight sessions. RESULTS: There were significant improvements on 1RM DL/BW (p< 0.01), 1RM BSQ/BW (p< 0.01), and 10 m sprint (p< 0.01) in the two groups. The effect sizes (d) of the DL and BSQ groups were 2.01 and 1.04 for 1RM DL/BW, 1.08 and 2.08 for 1RM BSQ/BW, 0.35 and 0.11 for CMJ height, and -0.94 and -0.54 for 10 m sprint, respectively. CONCLUSIONS: DL training might improve jumping and acceleration compared to those of BSQ training.
背景:提举(DL)相对于后蹲(BSQ)的优势在于后者需要额外的设备(即蹲架)。因此,如果DL能对跳跃、加速和方向改变产生积极影响,那么DL可以作为一种比BSQ更实用的训练练习。目的:本研究旨在比较DL和BSQ对跳跃、加速度和方向改变的影响。方法:23名男性(DL组12名[年龄:20.3±1.4岁,身高:169.6±6.7厘米,体重:65.7±11.2公斤],BSQ组11名[年龄:20.2±1.9岁,身高171.5±4.8厘米,体重70.1±6.8公斤])参加本研究。参与者进行了DL和BSQ的五次最大重复(RM),并测量了髋关节伸展的等速力量、臀大肌和腘绳肌的肌肉厚度、反跳(CMJ)高度、10米冲刺时间和T测试结果。使用5RM估计1RM,并将其标准化为体重(BW)。两组都进行了8次有监督的DL和BSQ训练。结果:两组的1RM DL/BW(p<0.01)、1RM BSQ/BW(p<0.01)和10m短跑(p<0.01)均有显著改善。DL和BSQ组的效应大小(d)对于1RM DL/BW分别为2.01和1.04,对于1RM BSQ/BW分别为1.08和2.08,对于CMJ身高分别为0.35和0.11,对于10m短跑分别为-0.94和-0.54。结论:与BSQ训练相比,DL训练可以提高跳跃和加速度。
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引用次数: 1
Radiological and clinical outcomes of concurrent hamstring stretching with quadriceps strengthening in patients with knee osteoarthritis: A randomized clinical trial 膝关节骨性关节炎患者同步腘绳肌拉伸与股四头肌强化的放射学和临床结果:一项随机临床试验
IF 0.7 4区 医学 Q3 Health Professions Pub Date : 2022-09-08 DOI: 10.3233/ies-220056
W. S. Mahmoud, Ahmed M. Osailan, R. Elnaggar, A. Alhailiy
BACKGROUND: Hamstring shortening altered joint reaction forces during activities of daily living (ADL), causing knee pain. Moreover, weak quadriceps may negatively distribute the compressive and shear forces at the knee joint. PURPOSE: The study examined the effect of adding hamstring stretching to quadriceps strengthening exercises on joint space narrowing (JSN), medial joint space width (mJSW), and physical abilities in patients with knee osteoarthritis (KOA). METHODS: A total of 42 osteoarthritis patients, aged from 50 to 65 years, were randomized and assigned into 2 groups: the study and the control groups. Quadriceps strengthening exercises were given to both groups, while static hamstring stretching was applied to only the study group. Patients of both groups were screened with a weight-bearing x-ray beam to investigate the JSN, mJSW, and functional abilities measured in the WOMAC scale. The Outcomes were evaluated at the baseline and immediately after 6 weeks of treatment. RESULTS: The mJSW improved in the study group (p< 0.001) compared to the control group (p= 0.07). The OARSI JSN was enhanced significantly in both groups, but in favor of the study group (p< 0.001) over the control group (p= 0.046). Both MVIC and total score of WOMAC were significantly improved in both groups (p< 0.001). CONCLUSION: Adding static hamstring stretching to quadriceps strengthening exercises provided a substantial effect on mJSW, JSN, and functional abilities in KOA patients.
背景:腘绳肌缩短改变了日常生活活动中的关节反作用力,导致膝关节疼痛。此外,弱股四头肌可能会使膝关节处的压缩力和剪切力呈负向分布。目的:研究在股四头肌强化训练中增加腘绳肌拉伸对膝骨关节炎(KOA)患者关节间隙变窄(JSN)、内侧关节间隙宽度(mJSW)和体能的影响。方法:将42名年龄在50至65岁之间的骨关节炎患者随机分为两组:研究组和对照组。两组都进行了股四头肌强化训练,而只有研究组进行了静态腘绳肌拉伸。两组患者都用承重x射线束进行筛查,以研究WOMAC量表中测量的JSN、mJSW和功能能力。在基线和治疗6周后立即评估结果。结果:与对照组(p=0.07)相比,研究组的mJSW有所改善(p<0.001)。两组的OARSI-JSN均显著增强,但有利于研究组(p<0.001)而非对照组(p=0.046)。两组的MVIC和WOMAC总分均显著提高(p<001)。结论:在股四头肌强化训练中加入静态腘绳肌拉伸对KOA患者的mJSW、JSN和功能能力有显著影响。
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引用次数: 0
The effect of a single session of isometric handgrip exercise on blood pressure 单次等长握力运动对血压的影响
IF 0.7 4区 医学 Q3 Health Professions Pub Date : 2022-09-08 DOI: 10.3233/ies-220057
Wan Mohammad Nazrin Wan Yusof, W. Nasaruddin, R. Hami, Ahmad Munir Che Muhamed, Hazwani Ahmad Yusof
BACKGROUND: It is unknown whether a session of isometric handgrip (IHG) exercise can influence the blood pressure of hypertensive and normotensive individuals. OBJECTIVE: To compare post exercise hypotension among groups with different resting blood pressure (BP) levels. METHODS: 56 Malay male volunteers (12 normotensive, 14 pre-hypertensive, 19 hypertensive stage 1, and 11 hypertensive stage 2) completed four sets of 2-minute isometric handgrip exercises at 30% of their maximum handgrip contraction with a one-minute break between the sets. Systolic BP (SBP), diastolic BP (DBP), pulse pressure (PP), mean arterial pressure (MAP), resting heart rate (RHR), and handgrip strength (HGS) were measured before and after an hour of IHG exercise. A paired sample t-test, one-way ANOVA, and two-way repeated measure ANCOVA were used to examine the data. RESULTS: All parameters, except RHR and HGS, were significantly changed following the exercise across the BP groups. The SBP, MAP, and HGS were greatly reduced among hypertensive stage 1 (SBP =-6.3 ± 0.6 mmHg; MAP =-4.8 ± 1.1 mmHg; HGS =-6.8 ±-0.4 mmHg) compared to other groups. Meanwhile, the most DBP was reduced among hypertensive stage 2 (mean =-5.2 ± 0.6 mmHg). CONCLUSIONS: The current study discovered a significant reduction in BP among hypertensive stage 1 and 2 individuals after a session of IHG exercise.
背景:目前尚不清楚等长握力(IHG)运动是否会影响高血压和血压正常者的血压。目的:比较不同静息血压组运动后低血压的变化。方法:56名马来男性志愿者(12名血压正常,14名高血压前期,19名高血压1期和11名高血压2期)以最大握力收缩的30%完成了四组2分钟的等长握力练习,两组之间休息一分钟。在IHG运动前后测量收缩压(SBP)、舒张压(DBP)、脉压(PP)、平均动脉压(MAP)、静息心率(RHR)和握力(HGS)。使用配对样本t检验、单因素方差分析和双向重复测量ANCOVA来检验数据。结果:除RHR和HGS外,所有参数在运动后BP组均发生了显著变化。与其他组相比,高血压1期患者的收缩压、MAP和HGS显著降低(收缩压=-6.3±0.6 mmHg;MAP=-4.8±1.1 mmHg;HGS=-6.8±-0.4 mmHg)。同时,在高血压2期中,DBP降低最多(平均值=-5.2±0.6mmHg)。结论:目前的研究发现,高血压1期和2期患者在进行IHG运动后,血压显著降低。
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引用次数: 0
The effect of two different stretching exercises on the muscle tendon unit and range of motion 两种不同伸展运动对肌腱单位和运动范围的影响
IF 0.7 4区 医学 Q3 Health Professions Pub Date : 2022-08-11 DOI: 10.3233/ies-210172
M. Kaya, E. Gokce, Funda Demirturk
BACKGROUND: Stretching is commonly used for clinical and sports reason but the effects vary on time and the technique used. PURPOSE: To determine the acute effects of static and dynamic stretching of gastrocnemius muscle on muscle-tendon unit (MTU) and dorsiflexion range of motion (ROM) in the same individuals; to find out how long the stretching effects endure. METHODS: Twenty-eight males (mean age: 22.18 ± 2.58 years) were included in the study. A 45-s static stretching (SS) exercise was applied to the right leg 5 times and dynamic stretching (DS) of same duration to the other leg. Change in MTU was assessed by ultrasonography and active and passive ROM was measured with goniometer. All evaluations were performed before, immediately following, 5-min, 15-min and 30-min after stretching. RESULTS: Muscle thickness and pennation angle did not change over time with either techniques (p> 0.05). A significant muscle-tendon junction (MTJ) displacement occurred after the techniques (p< 0.05); the highest change was achieved after DS (p< 0.05). Both techniques improved active ROM values similarly (p< 0.05), but only dynamic stretching increased passive ROM significantly (p< 0.05). Active and passive ROM and MTJ displacement values at 30th – min were still higher than the baseline ones on the DS side (p< 0.05). However, SS increased active ROM angle immediately after application but this increment declined until the final measurement. CONCLUSION: We recommend using the dynamic stretching technique to achieve greater and longer lasting increases in tendon length and range of motion.
背景:拉伸通常用于临床和运动,但效果随时间和使用的技术而变化。目的:确定腓肠肌静态和动态拉伸对同一个体肌肉-肌腱单位(MTU)和背屈运动范围(ROM)的急性影响;看看拉伸效果能持续多久。方法:男性28例,平均年龄22.18±2.58岁。右腿进行5次45 s的静态拉伸(SS),另一条腿进行相同时间的动态拉伸(DS)。超声检查MTU变化,测角仪测量主动和被动ROM。所有评估分别在拉伸前、紧接后、拉伸后5分钟、15分钟和30分钟进行。结果:两种方法的肌肉厚度和笔触角度均未随时间变化(p < 0.05)。术后肌肉-肌腱连接处(MTJ)明显移位(p< 0.05);DS后变化最大(p< 0.05)。两种技术提高主动ROM值相似(p< 0.05),但只有动态拉伸显著增加被动ROM (p< 0.05)。30 min时主动、被动ROM和MTJ位移值仍高于基线(p< 0.05)。然而,SS在应用后立即增加了有效ROM角,但这种增量在最终测量之前一直下降。结论:我们推荐使用动态拉伸技术来实现更大、更持久的肌腱长度和活动范围的增加。
{"title":"The effect of two different stretching exercises on the muscle tendon unit and range of motion","authors":"M. Kaya, E. Gokce, Funda Demirturk","doi":"10.3233/ies-210172","DOIUrl":"https://doi.org/10.3233/ies-210172","url":null,"abstract":"BACKGROUND: Stretching is commonly used for clinical and sports reason but the effects vary on time and the technique used. PURPOSE: To determine the acute effects of static and dynamic stretching of gastrocnemius muscle on muscle-tendon unit (MTU) and dorsiflexion range of motion (ROM) in the same individuals; to find out how long the stretching effects endure. METHODS: Twenty-eight males (mean age: 22.18 ± 2.58 years) were included in the study. A 45-s static stretching (SS) exercise was applied to the right leg 5 times and dynamic stretching (DS) of same duration to the other leg. Change in MTU was assessed by ultrasonography and active and passive ROM was measured with goniometer. All evaluations were performed before, immediately following, 5-min, 15-min and 30-min after stretching. RESULTS: Muscle thickness and pennation angle did not change over time with either techniques (p> 0.05). A significant muscle-tendon junction (MTJ) displacement occurred after the techniques (p< 0.05); the highest change was achieved after DS (p< 0.05). Both techniques improved active ROM values similarly (p< 0.05), but only dynamic stretching increased passive ROM significantly (p< 0.05). Active and passive ROM and MTJ displacement values at 30th – min were still higher than the baseline ones on the DS side (p< 0.05). However, SS increased active ROM angle immediately after application but this increment declined until the final measurement. CONCLUSION: We recommend using the dynamic stretching technique to achieve greater and longer lasting increases in tendon length and range of motion.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47159877","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
Differential effects of dynamic and ballistic stretching on contralateral lower limb flexibility 动态和弹道拉伸对对侧下肢柔韧性的不同影响
IF 0.7 4区 医学 Q3 Health Professions Pub Date : 2022-07-28 DOI: 10.3233/ies-220033
Taisei Inoue, K. Nagano
BACKGROUND: Dynamic stretching (DS) and ballistic stretching (BS) are similar stretching methods, but the differences between them are unclear. OBJECTIVE: To examine the immediate effects of unilateral hamstring DS and BS on straight leg raise (SLR), knee flexion range of motion (KF-ROM), and KF and knee extension maximal isokinetic peak torque (KF-MIPT and KE-MIPT) of the bilateral limbs. METHODS: Twelve healthy adult men performed four sets of 2 min each of non-stretching, DS, or BS of the right lower extremity. Bilateral SLR, KF-ROM, KF-MIPT, and KE-MIPT were measured pre- and post-intervention; a three-way (intervention × limb × time) repeated-measures analysis of variance (ANOVA) was used. RESULTS: The SLR of the stretched limb (p< 0.01) was higher with DS than that pre-intervention. SLR (p< 0.01) and KF-ROM (p< 0.05) of the stretched limb and SLR (p< 0.05) and KF-ROM (p< 0.05) of the contralateral limb were higher with BS than those pre-intervention. There was no significant main effect or interaction between KF-MIPT and KE-MIPT. CONCLUSION: DS and BS had slightly different effects on ROM, and neither affected muscle strength; thus, combining the techniques during warm-up might be helpful.
背景:动态拉伸(DS)和弹道拉伸(BS)是类似的拉伸方法,但它们之间的区别尚不清楚。目的:探讨单侧腘绳肌DS和BS对双侧肢体直腿抬高(SLR)、膝关节屈曲活动范围(KF- rom)、KF和膝关节伸展最大等速峰值扭矩(KF- mipt和KE-MIPT)的直接影响。方法:12名健康成年男性进行4组右下肢非拉伸、DS或BS,每组2分钟。干预前后分别测量双侧SLR、KF-ROM、KF-MIPT和KE-MIPT;采用三向(干预×肢体×时间)重复测量方差分析(ANOVA)。结果:DS组伸展肢体的SLR高于干预前(p< 0.01)。伸展肢体的SLR (p< 0.01)和KF-ROM (p< 0.05),对侧肢体的SLR (p< 0.05)和KF-ROM (p< 0.05)均高于干预前。KF-MIPT与KE-MIPT之间无显著主效应或相互作用。结论:DS和BS对ROM的影响略有不同,均不影响肌力;因此,在热身期间结合这些技术可能会有所帮助。
{"title":"Differential effects of dynamic and ballistic stretching on contralateral lower limb flexibility","authors":"Taisei Inoue, K. Nagano","doi":"10.3233/ies-220033","DOIUrl":"https://doi.org/10.3233/ies-220033","url":null,"abstract":"BACKGROUND: Dynamic stretching (DS) and ballistic stretching (BS) are similar stretching methods, but the differences between them are unclear. OBJECTIVE: To examine the immediate effects of unilateral hamstring DS and BS on straight leg raise (SLR), knee flexion range of motion (KF-ROM), and KF and knee extension maximal isokinetic peak torque (KF-MIPT and KE-MIPT) of the bilateral limbs. METHODS: Twelve healthy adult men performed four sets of 2 min each of non-stretching, DS, or BS of the right lower extremity. Bilateral SLR, KF-ROM, KF-MIPT, and KE-MIPT were measured pre- and post-intervention; a three-way (intervention × limb × time) repeated-measures analysis of variance (ANOVA) was used. RESULTS: The SLR of the stretched limb (p< 0.01) was higher with DS than that pre-intervention. SLR (p< 0.01) and KF-ROM (p< 0.05) of the stretched limb and SLR (p< 0.05) and KF-ROM (p< 0.05) of the contralateral limb were higher with BS than those pre-intervention. There was no significant main effect or interaction between KF-MIPT and KE-MIPT. CONCLUSION: DS and BS had slightly different effects on ROM, and neither affected muscle strength; thus, combining the techniques during warm-up might be helpful.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45191482","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
Time-based effects of different duration stretching on calf muscle strength 不同时间拉伸对小腿肌肉力量的影响
IF 0.7 4区 医学 Q3 Health Professions Pub Date : 2022-07-21 DOI: 10.3233/ies-220012
Masood Khan, A. Alghadir
BACKGROUND: There are conflicting reports on the acute effects of stretching on muscle strength. Some studies report reduction in muscle strength however others report no change following stretching. OBJECTIVE: To assess the acute effects of static stretching (SS) of different durations on the isometric maximum voluntary contraction force (MVCF) of the calf muscle. METHODS: Pretest-posttest experimental design was used. Ten male participants (mean age 25.4 ± 2.11 years) participated in three experimental trials: SS for 2-minutes (SS2), 4-minutes (SS4), and 8-minutes (SS8). MVCF was measured before, immediately after, at 10- and 20-minutes post-stretch intervals. Each SS trial involved varied repetitions of 30-seconds stretches and 20-seconds relaxation periods. The isometric maximum voluntary contraction force (MVCF) was the outcome measure. RESULTS: SS2, SS4, and SS8 did not change the MVCF at 0-, 10- and 20-minutes post stretching intervals (p> 0.05). CONCLUSIONS: 2-, 4-, and 8-minutes intermittent SS did not change the isometric muscle strength in the Calf muscle up to 20 minutes after stretching and thus can safely be performed before those sporting events that require significant muscle strength.
背景:关于拉伸对肌肉力量的急性影响,有相互矛盾的报道。一些研究报告肌肉力量下降,但其他研究报告拉伸后没有变化。目的:评估不同持续时间的静态拉伸(SS)对小腿肌肉等长最大自主收缩力(MVCF)的急性影响。方法:采用测试前-测试后实验设计。10名男性参与者(平均年龄25.4±2.11岁)参加了三项实验试验:SS 2分钟(SS2)、4分钟(SS4)和8分钟(SS8)。在拉伸前、拉伸后立即、拉伸后10分钟和20分钟测量MVCF。每次SS试验包括30秒拉伸和20秒放松期的不同重复。等长最大自主收缩力(MVCF)是测量结果的指标。结果:SS2、SS4和SS8在拉伸后0、10和20分钟的时间间隔内没有改变MVCF(p>0.05)。结论:2、4和8分钟的间歇性SS在拉伸后20分钟内没有改变小腿肌肉的等长肌肉力量,因此可以在需要显著肌肉力量的运动项目之前安全地进行。
{"title":"Time-based effects of different duration stretching on calf muscle strength","authors":"Masood Khan, A. Alghadir","doi":"10.3233/ies-220012","DOIUrl":"https://doi.org/10.3233/ies-220012","url":null,"abstract":"BACKGROUND: There are conflicting reports on the acute effects of stretching on muscle strength. Some studies report reduction in muscle strength however others report no change following stretching. OBJECTIVE: To assess the acute effects of static stretching (SS) of different durations on the isometric maximum voluntary contraction force (MVCF) of the calf muscle. METHODS: Pretest-posttest experimental design was used. Ten male participants (mean age 25.4 ± 2.11 years) participated in three experimental trials: SS for 2-minutes (SS2), 4-minutes (SS4), and 8-minutes (SS8). MVCF was measured before, immediately after, at 10- and 20-minutes post-stretch intervals. Each SS trial involved varied repetitions of 30-seconds stretches and 20-seconds relaxation periods. The isometric maximum voluntary contraction force (MVCF) was the outcome measure. RESULTS: SS2, SS4, and SS8 did not change the MVCF at 0-, 10- and 20-minutes post stretching intervals (p> 0.05). CONCLUSIONS: 2-, 4-, and 8-minutes intermittent SS did not change the isometric muscle strength in the Calf muscle up to 20 minutes after stretching and thus can safely be performed before those sporting events that require significant muscle strength.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46695391","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 relationship between lower limb muscle volume and peak vertical jump power in children 儿童下肢肌肉体积与峰值垂直起跳力的关系
IF 0.7 4区 医学 Q3 Health Professions Pub Date : 2022-07-15 DOI: 10.3233/ies-220024
Souhail Bchini, N. Hammami, N. Ouerghi, D. Zalleg, A. Bouassida
BACKGROUND: Vertical jump is an index representing leg power. It is important to determine factors that influence the vertical jump to help athletes improve their leg power. OBJECTIVE: This study aimed to determine the relationship between lower limbs muscle volume and peak vertical jump (VJ) power in children for both sexes. METHODS: Fourty children healthy boys (n= 20) and girls (n= 20) aged 10 to 12 years old, randomly performed three VJ modalities: squat jump (SJ), counter movement jump without (CMJ) and with arm swings (CMJarms). Lower limbs muscle volume (MV) estimated using a standard anthropometric method. Peak power (PP) calculated by Sayers equation. RESULTS: significant correlations between MV and Peak vertical jump power showed for both sexes. Likewise, significant correlations were found between MV and body mass for boys (r= 0.66; p= 0.001) and for girls (r= 0.59; p= 0.006). CONCLUSIONS: The correlation observed between peak vertical jump power and MV in both sexes can be considered as estimation tool of the lower limbs muscle power. Lower limb’s muscle volume are determining factor in muscle power for both sexes.
背景:垂直跳跃是一个代表腿部力量的指标。确定影响垂直跳跃的因素以帮助运动员提高腿部力量是很重要的。目的:本研究旨在确定男女儿童下肢肌肉量与垂直跳跃峰值(VJ)力量之间的关系。方法:40名10~12岁的健康男孩(n=20)和女孩(n=20。使用标准人体测量方法估计的下肢肌肉体积(MV)。通过Sayers方程计算的峰值功率(PP)。结果:MV与垂直跳跃力峰值之间存在显著的相关性。同样,男孩(r=0.66;p=0.001)和女孩(r=0.59;p=0.006)的MV与体重之间也存在显著相关性。下肢的肌肉量是决定两性肌肉力量的因素。
{"title":"The relationship between lower limb muscle volume and peak vertical jump power in children","authors":"Souhail Bchini, N. Hammami, N. Ouerghi, D. Zalleg, A. Bouassida","doi":"10.3233/ies-220024","DOIUrl":"https://doi.org/10.3233/ies-220024","url":null,"abstract":"BACKGROUND: Vertical jump is an index representing leg power. It is important to determine factors that influence the vertical jump to help athletes improve their leg power. OBJECTIVE: This study aimed to determine the relationship between lower limbs muscle volume and peak vertical jump (VJ) power in children for both sexes. METHODS: Fourty children healthy boys (n= 20) and girls (n= 20) aged 10 to 12 years old, randomly performed three VJ modalities: squat jump (SJ), counter movement jump without (CMJ) and with arm swings (CMJarms). Lower limbs muscle volume (MV) estimated using a standard anthropometric method. Peak power (PP) calculated by Sayers equation. RESULTS: significant correlations between MV and Peak vertical jump power showed for both sexes. Likewise, significant correlations were found between MV and body mass for boys (r= 0.66; p= 0.001) and for girls (r= 0.59; p= 0.006). CONCLUSIONS: The correlation observed between peak vertical jump power and MV in both sexes can be considered as estimation tool of the lower limbs muscle power. Lower limb’s muscle volume are determining factor in muscle power for both sexes.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41633375","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: 1
Relationship between clinical outcome measurements and muscle thickness in cerebral palsy 脑瘫患者的临床疗效测量与肌肉厚度的关系
IF 0.7 4区 医学 Q3 Health Professions Pub Date : 2022-07-15 DOI: 10.3233/ies-220058
W. Oh, Chanhee Park
BACKGROUND: The World Health Organization (WHO) uses the International Classification of Functioning, Disability, and Health (ICF) model to provide physical therapy diagnoses and interventions. However, the relationship between clinical assessment and imaging remains unclear. OBJECTIVE: This study aimed to determine the relationships between body function/structure, activity, and participation outcomes following neurorehabilitation in children with cerebral palsy (CP). METHODS: Nineteen children (9 girls mean age 8.8 ± 1.8 years) with CP participated in this study. Clinical motor function tests included the quality of upper extremity skills test (QUEST), Wolf motor function test (WMFT), Functional Independence Measure for Children (WeeFIM), and the Jebsen-Taylor Hand Function Test (JTHFT). Ultrasound imaging was used to measure muscle thickness, which characterizes the body structure, and activity domain variables. RESULTS: The correlations between body structure domain (muscle thickness), activity domain (QUEST, WMFT, WeeFIM) and participants variable (JTHFT) were significant, ranging from r=-0.484 to 0.893, P< 0.05. CONCLUSIONS: These novel findings suggest that muscle thickness ultrasound imaging is closely associated with WMFT, WeeFIM, and QUEST variables. This finding provides important clinical insights when using broad clinical assessment and imaging in children with CP.
背景:世界卫生组织(WHO)使用国际功能、残疾和健康分类(ICF)模型来提供物理治疗诊断和干预。然而,临床评估和影像学之间的关系尚不清楚。目的:本研究旨在确定脑瘫(CP)儿童神经康复后身体功能/结构、活动和参与结果之间的关系。方法:19例CP患儿(女孩9例,平均年龄8.8±1.8岁)参加本研究。临床运动功能测试包括上肢技能质量测验(QUEST)、Wolf运动功能测验(WMFT)、儿童功能独立性测验(WeeFIM)和捷成-泰勒手功能测验(JTHFT)。超声成像用于测量肌肉厚度,这是身体结构的特征,以及活动域变量。结果:身体结构域(肌肉厚度)、活动域(QUEST、WMFT、WeeFIM)和参与者变量(JTHFT)之间的相关性显著,r=-0.484 ~ 0.893, P< 0.05。结论:这些新发现表明,肌肉厚度超声成像与WMFT、WeeFIM和QUEST变量密切相关。这一发现为使用广泛的临床评估和影像学检查儿童CP提供了重要的临床见解。
{"title":"Relationship between clinical outcome measurements and muscle thickness in cerebral palsy","authors":"W. Oh, Chanhee Park","doi":"10.3233/ies-220058","DOIUrl":"https://doi.org/10.3233/ies-220058","url":null,"abstract":"BACKGROUND: The World Health Organization (WHO) uses the International Classification of Functioning, Disability, and Health (ICF) model to provide physical therapy diagnoses and interventions. However, the relationship between clinical assessment and imaging remains unclear. OBJECTIVE: This study aimed to determine the relationships between body function/structure, activity, and participation outcomes following neurorehabilitation in children with cerebral palsy (CP). METHODS: Nineteen children (9 girls mean age 8.8 ± 1.8 years) with CP participated in this study. Clinical motor function tests included the quality of upper extremity skills test (QUEST), Wolf motor function test (WMFT), Functional Independence Measure for Children (WeeFIM), and the Jebsen-Taylor Hand Function Test (JTHFT). Ultrasound imaging was used to measure muscle thickness, which characterizes the body structure, and activity domain variables. RESULTS: The correlations between body structure domain (muscle thickness), activity domain (QUEST, WMFT, WeeFIM) and participants variable (JTHFT) were significant, ranging from r=-0.484 to 0.893, P< 0.05. CONCLUSIONS: These novel findings suggest that muscle thickness ultrasound imaging is closely associated with WMFT, WeeFIM, and QUEST variables. This finding provides important clinical insights when using broad clinical assessment and imaging in children with CP.","PeriodicalId":54915,"journal":{"name":"Isokinetics and Exercise Science","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48035077","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
Effect of novel diagonal stretching combining trunk rotation and trunk flexion on contralateral knee extension 结合躯干旋转和躯干屈曲的新型对角拉伸对对侧膝关节伸展的影响
IF 0.7 4区 医学 Q3 Health Professions Pub Date : 2022-06-24 DOI: 10.3233/ies-220026
W. Lim
BACKGROUND: Most previous studies have focused on increasing hamstring flexibility when knee extension range of motion (KE ROM) is restricted. However, it was demonstrated that the tensile force generated in the upper body could be transmitted to the contralateral lower extremity. OBJECTIVE: This study examined the effect of novel diagonal stretching combining trunk rotation and trunk flexion on the contralateral KE ROM. METHODS: Two different positions (sitting with a neutral pelvis position and sitting with trunk rotation) were randomly selected and the contralateral and ipsilateral KE ROM was measured in each position. As for the stretching intervention, trunk rotation and slight trunk flexion were applied in sitting with a neutral pelvic position. RESULTS: On the contralateral side, KE ROM was significantly different in all pairwise comparisons (p< 0.001). On the ipsilateral side, a significant difference in KE ROM was only observed between measurements taken after stretching compared to measurements taken during trunk rotation (p= 0.005). CONCLUSIONS: The tensile force in the upper body significantly affects tissue extensibility in the lower extremity in the contralateral side, leading to the restriction of active maximum knee extension. Diagonal stretching techniques may successfully enhance mobility in the contralateral leg.
背景:以前的大多数研究都集中在当膝盖伸展运动范围(KE ROM)受到限制时增加腘绳肌的灵活性上。然而,研究表明,上半身产生的张力可以传递到对侧下肢。目的:本研究观察躯干旋转和躯干屈曲相结合的新型对角拉伸对对侧KE ROM的影响。方法:随机选择两个不同的位置(骨盆中立位和躯干旋转位),测量每个位置的对侧和同侧KE ROM。至于伸展干预,躯干旋转和轻微的躯干屈曲应用于中性骨盆位置的坐姿。结果:对侧的KE-ROM在所有配对比较中都有显著差异(p<0.001),仅在拉伸后的测量值与躯干旋转期间的测量值之间观察到KE ROM的显著差异(p=0.005)。结论:上身的张力显著影响对侧下肢的组织延展性,导致膝关节活动最大伸展受限。对角线拉伸技术可以成功地增强对侧腿的灵活性。
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Isokinetics and Exercise Science
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