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Isokinetic testing protocol-based discharge criteria after anterior ligament reconstruction: A systematic review 前韧带重建后基于等速测试方案的出院标准:系统回顾
4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-10-05 DOI: 10.3233/ies-220103
Ana Carolina de Jacomo Claudio, Luana Zava Ribeiro da Silva, Laís Gobbo Fonseca, Caroline Coletti de Camargo, Aryane Flauzino Machado, Jessica Kirsch Micheletti, Berlis Ribeiro dos Santos Menossi
BACKGROUND: The return to activities and sports after the anterior cruciate ligament (ACL) reconstruction is a critical decision. OBJECTIVE: To verify the most used elements during the isokinetic evaluation for discharge after ACL reconstruction. METHODS: Systematic review (PROSPERO CRD42021224433). Research in the literature: PubMed, Medline, SciELO, Lilacs, CENTRAL, PEDro, Web of Science and Embase, in February 2022. Studies that performed isokinetic evaluation during the discharge period in male patients aged 18 to 59 years after ACL reconstruction. Descriptive synthesis on the most used parameters during isokinetic evaluation as a discharge criteria after ACL reconstruction. RESULT: Twenty-three studies involving 1,792 participants were included. Medium and high quality evidence identified that most isokinetic evaluations targeted only muscle strength after rehabilitation of the ACL (peak moment). CONCLUSION: The most used elements during the isokinetic evaluation were: angular velocity of 60∘/s, 1 set of 5 repetitions, concentric mode and peak moment.
背景:前交叉韧带(ACL)重建后恢复活动和运动是一个关键的决定。目的:验证前交叉韧带重建术后出院等速评估中最常用的指标。方法:系统评价(PROSPERO CRD42021224433)。文献研究:PubMed, Medline, SciELO, Lilacs, CENTRAL, PEDro, Web of Science and Embase,截止到2022年2月。对18 ~ 59岁男性ACL重建患者出院期间进行等速运动评估的研究。将等速评估中最常用参数的描述性综合作为ACL重建后的出院标准。结果:纳入23项研究,涉及1,792名受试者。中等和高质量的证据表明,大多数等速运动评估仅针对前交叉韧带康复后的肌肉力量(峰值力矩)。结论:等速评估中使用最多的元素是:60°/s的角速度、1组5次重复、同心模态和峰值力矩。
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引用次数: 0
Continuous palm cooling’s effect on heat transfer and physiology 手掌持续冷却对热传递和生理的影响
4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-10-05 DOI: 10.3233/ies-230077
N.L. Patel, P.M. Quesada, J. Wellwood, B.C. Skutnik, J.P. Daily, J.F. Caruso
BACKGROUND: Excess heat accrual is perhaps the body’s most dangerous exercise-induced stressor. While palm cooling uses conduction to reduce body temperatures, to date the volume of heat transferred by this treatment resulting from exercise is unknown. OBJECTIVE: Asses continuous palm cooling’s impact on heat transfer and physiology. METHODS: Thirty-one subjects did two workouts; one with, and one without, palm cooling. Workouts entailed consecutive stages of submaximal pedaling against prescribed workloads. Gloves were worn at workouts; for palm cooling 10.6∘C gel packs were inserted into gloves at the workout’s start and conclusion. Heart rate, auditory canal and palm skin temperatures, and heat transfer across the palm were collected. Data were obtained pre-exercise, at the end of a warm-up, and at multiple times during the 25 minutes of pedaling and 30 minutes of recovery. RESULTS: Auditory canal temperatures had a significant treatment effect (palm cooling < non-palm cooling). Palm skin temperature had an interaction, with higher non-palm cooling values at multiple times. Conversely, heat transfer also produced an interaction, but palm cooling had significantly higher values at multiple times. Heat transfer was 32% higher for the palm cooling workout. CONCLUSIONS: Continuous palm cooling produced significantly higher heat transfer from submaximal exercise.
背景:过量的热量积累可能是人体运动引起的最危险的应激源。虽然手掌冷却是通过传导来降低体温的,但迄今为止,这种治疗方法从运动中传递的热量尚不清楚。目的:评估手掌持续冷却对传热和生理的影响。方法:31名受试者进行两次锻炼;一个有,一个没有,手掌冷却。训练需要在规定的工作量下进行连续的次最大蹬踏。锻炼时戴手套;在训练开始和结束时,在手套内插入10.6°C的凝胶包。收集心率、耳道和手掌皮肤温度以及手掌的热量传递。数据在运动前、热身结束时、25分钟蹬车和30分钟恢复期间多次获得。结果:耳道温度有显著的治疗效果(手掌冷却;non-palm冷却)。手掌皮肤温度存在交互作用,多次出现较高的非手掌冷却值。相反,传热也会产生相互作用,但手掌冷却在多个时间点上的值明显更高。在手掌冷却训练中,热量传递高出32%。结论:持续的手掌冷却显著提高了亚极限运动的热量传递。
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引用次数: 0
Effect of kinesio taping and exercise on functional impairment in patients with different degrees of knee osteoarthritis 运动贴敷与运动对不同程度膝关节骨性关节炎患者功能损害的影响
4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-09-15 DOI: 10.3233/ies-230028
Waleed S. Mahmoud
BACKGROUND: Kinesio Taping (KT) is used for musculoskeletal problems. KT optimizes and reduces mechanical stresses on soft tissues. However, the benefits of KT and traditional exercises for different severities of knee osteoarthritis (OA) remains controversial. OBJECTIVES: This study aimed to investigate the effects of tension KT and traditional physical therapy on different severities of knee OA. METHODS: Fifty-six male patients with knee OA, aged 60–75-y years, were allocated to groups A and B based on grades 1 and 2 and grades 3 and 4 on the Kellgren-Lawrence scale, respectively. Tension KT and traditional physical therapy were administrated to both groups for 6-wks. The extensor peak moment of quadriceps and knee flexion range of motion (ROM) were recorded using an isokinetic dynamometer and universal goniometer, respectively. Visual analog scale (VAS) was used to score pain level. Statistical analysis was performed using the ANCOVA test. RESULTS: ANCOVA revealed an increase in peak extensor moment of quadriceps (Pre: 51.6 ± 2.8 Nm; Post: 63.3 ± 4.3 Nm), knee flexion ROM (Pre: 112.8±∘ 7.2; Post: 122.9±∘ 4.8), and pain improvement (Pre: 5.1 ± 1.07; Post: 2.8 ± 1.6) in group A (p< 0.001). Group B showed insignificant improvements in all outcome measures (p> 0.05). CONCLUSION: KT with traditional physical therapy improved knee pain, quadriceps strength, and knee ROM in older males with knee OA grades 1 and 2. KT and traditional physical therapy were insufficient to produce considerable effects on grades 3 and 4 of knee OA.
背景:肌内效贴敷(KT)用于治疗肌肉骨骼问题。KT优化并减少了对软组织的机械应力。然而,对于不同严重程度的膝关节骨性关节炎(OA), KT和传统运动的益处仍然存在争议。目的:本研究旨在探讨张力性KT和传统物理治疗对不同严重程度膝关节炎的影响。方法:56例60 ~ 75岁的男性膝关节OA患者,根据Kellgren-Lawrence量表的1、2级和3、4级分别分为A、B组。两组均给予张力性KT和传统物理治疗,疗程6周。使用等速测功仪和万向角仪分别记录四头肌伸肌峰值力矩和膝关节屈曲运动范围(ROM)。采用视觉模拟量表(VAS)对疼痛程度进行评分。采用ANCOVA检验进行统计学分析。结果:ANCOVA显示股四头肌伸肌力矩峰值增加(Pre: 51.6±2.8 Nm;后:63.3±4.3 Nm),膝关节屈曲ROM(前:112.8±7.2;后:122.9±4.8),以及疼痛改善(前:5.1±1.07;A组术后:2.8±1.6)(p<0.001)。B组在所有结局指标上均无显著改善(p>0.05)。结论:传统物理疗法结合KT可改善老年男性1级和2级膝关节炎患者的膝关节疼痛、股四头肌力量和膝关节活动度。KT和传统的物理治疗不足以对3级和4级膝关节炎产生显著的效果。
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引用次数: 0
Validity of using perceived exertion to assess muscle fatigue during bench press exercise 在卧推运动中使用感知用力来评估肌肉疲劳的有效性
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-08-21 DOI: 10.3233/ies-230048
Hanye Zhao, Dasom Seo, Junichi Okada
BACKGROUND: Muscle fatigue is nearly unavoidable during resistance exercise, yet evaluating it in such circumstances can be challenging. OBJECTIVE: This study aimed to evaluate the validity of using the rating of perceived exertion (RPE) as a measure of muscle fatigue during non-explosive bench press (BP) exercise. METHODS: Fifteen male collegiate athletes participated in three BP tasks set at 65% of their one-repetition maximum. The RPE, spectral fatigue index (SFI), and velocity loss were measured across different experimental conditions. RESULTS: Significant effects were observed across different experimental conditions for the overall RPE, average velocity loss, and average SFI (all p< 0.001). As the lifting tasks progressed, there were significant increases in the RPE, velocity loss, and SFI (p< 0.001). Additionally, significant differences were observed between the experimental conditions in the RPE (p< 0.001), SFI (p< 0.001), and velocity loss (p< 0.01). A significantly stronger (p< 0.05) correlation was observed between the RPE and SFI (r= 0.68, df= 117, p< 0.001) than between the velocity loss and SFI (r= 0.51, df= 117, p< 0.001). CONCLUSIONS: The corresponding changes observed in the RPE, velocity loss, and SFI suggest that both the RPE and velocity loss can be used as indicators of muscle fatigue during non-explosive BP exercise. However, due to the strong correlation between the RPE and SFI, RPE is more effective for reflecting muscle fatigue in non-explosive resistance exercise settings. Regarding ease of use, the RPE is more suitable than velocity loss for assessing muscle fatigue in training scenarios.
背景:在阻力运动中,肌肉疲劳几乎是不可避免的,但在这种情况下评估它可能具有挑战性。目的:本研究旨在评估在非爆炸性卧推(BP)运动中使用感觉用力(RPE)评分作为肌肉疲劳测量的有效性。方法:15名男大学生运动员参加了三项BP任务,设定为一次重复次数最大值的65%。在不同的实验条件下测量了RPE、光谱疲劳指数(SFI)和速度损失。结果:在不同的实验条件下,观察到整体RPE、平均速度损失和平均SFI的显著影响(均<0.001)。随着提升任务的进行,RPE、速度损失和SFI显著增加(p<0.001)。此外,RPE和SFI之间的相关性(r=0.68,df=117,p<0.001)显著强于速度损失和SFI(r=0.51,df=1117,p<0.001),SFI表明RPE和速度损失都可以作为非爆炸性BP运动中肌肉疲劳的指标。然而,由于RPE和SFI之间的强相关性,RPE在非爆炸性阻力运动环境中更有效地反映肌肉疲劳。关于易用性,RPE比速度损失更适合在训练场景中评估肌肉疲劳。
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引用次数: 0
The relationship between muscle quality index and physical function in older adults 老年人肌肉质量指数与身体机能的关系
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-08-21 DOI: 10.3233/ies-230051
Andreas Stotz, J. Mason, A. Zech
BACKGROUND: The muscle quality index (MQI) has been proposed as a diagnostic tool to detect individuals at risk of limited physical function. OBJECTIVE: Our goal was to examine the relationship of the MQI with physical function and compare its predictive ability with other muscle parameters of strength and mass in an older population. METHODS: Sixty-eight healthy older adults (34 male, 34 female) aged between 69 and 89 years were tested for body composition, MQI, maximum isokinetic concentric KES and physical function including sit-to-stand (STS) time, normal and maximum walking speed (WS), Timed Up and Go (TUG) and static balance. Pearson’s correlation was applied to examine the relationship between muscle parameters. Linear regression analysis including age and sex as additional covariates was performed to assess their predictive ability for physical functions. RESULTS: MQI correlated significantly with relative KES (r= 0.611, p< 0.001), total KES (r= 0.829, p< 0.001) and leg lean tissue mass (r= 0.690, p< 0.001). The MQI was not a significant predictor for any physical function (p> 0.05). STS time was a significant predictor for normal WS and TUG time (p< 0.001). Relative KES was a significant predictor for all physical functions except static balance (p< 0.001). No muscle parameter and only age was a significant predictor for static balance. Models explained 20.4%–57.3% of variances of dependent variables. CONCLUSIONS: The MQI is a useful tool to assess leg lean tissue mass and strength of the knee extensor muscles and outperforms STS time. However, STS time and relative KES are more closely related to physical function than the MQI.
背景:肌肉质量指数(MQI)已被提议作为一种诊断工具,用于检测身体功能受限的个体。目的:我们的目标是检查MQI与身体功能的关系,并将其预测能力与老年人群中其他肌肉力量和质量参数进行比较。方法:对68名年龄在69至89岁之间的健康老年人(34男,34女)进行身体成分、MQI、最大等速同心KES和身体功能测试,包括坐-站(STS)时间、正常和最大步行速度(WS)、定时上下(TUG)和静态平衡。应用Pearson相关性检验肌肉参数之间的关系。进行了包括年龄和性别作为额外协变量的线性回归分析,以评估他们对身体功能的预测能力。结果:MQI与相对KES显著相关(r=0.611,总KES(r=0.829,p<0.001)和腿部瘦组织质量(r=0.690,p<0.001)。MQI不是任何身体功能的显著预测因素(p>0.05)。STS时间是正常WS和TUG时间的显著预测指标(p<0.001)。相对KES是除静态平衡外的所有身体功能的重要预测指标(p<0.01)。没有肌肉参数,只有年龄是静态平衡。模型解释了20.4%-57.3%的因变量方差。结论:MQI是评估腿部瘦组织质量和膝伸肌强度的有用工具,并且优于STS时间。然而,STS时间和相对KES与物理函数的关系比MQI更密切。
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引用次数: 0
Temporal cross-correlation between Polar® heart rate monitor interface board and ECG to measure RR interval at rest Polar®心率监测仪接口板与ECG之间的时间相互关联,以测量静息时的RR间期
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-08-21 DOI: 10.3233/ies-230061
Wollner Materko, Caio Cesar dos Reis Façanha, Gizelly Coelho Guedes, Marcela Fabiani Silva Dias, Alisson Vieira Costa, Dilson Rodrigues Belfort, Demilto Yamaguchi da Pureza, Á. A. Alberto
BACKGROUND: A Polar heart rate monitor is a device that measures RR intervals, but has not been correlated to accurately measure the series of RR interval signals between the ECG and the Polar® Heart Rate Monitor Interface (HRMI) Board at rest. OBJECTIVE: The aim of the study was to evaluate the temporal cross-correlations between the Polar® HRMI Board and an ECG to measure the series of RR intervals at rest. METHODS: The sample consisted of eighteen healthy male subjects and they were instructed to lie in the supine position at rest while breathing normally and a time window of the last 2 min was recorded to analyse RR intervals were obtained for each subject with a Polar® HRMI Board and an ECG. Cross-correlation analysis of RR interval signals between methods and reliability was expressed by Bland and Altman analysis. RESULTS: The cross-correlation was excellent, resulting in a mean of 0.98 ± 0.01 and no lag or delay between the signals. The bias was 0.03 ± 0.08 s or 8.0% for MeanRRi from Polar® HRMI Board and ECG, no significant difference. CONCLUSIONS: The Polar® HRMI Board is acceptable for assessment of serial RR intervals. The results support the reliability of the Mean RR interval compared to a resting ECG.
背景:Polar心率监测器是一种测量RR间期的设备,但尚未与静息时心电图和Polar®心率监测器接口(HRMI)板之间的一系列RR间期信号相关联。目的:本研究的目的是评估Polar®HRMI板和心电图之间的时间交叉相关性,以测量休息时的一系列RR间期。方法:样本由18名健康男性受试者组成,他们被要求在休息时仰卧,同时正常呼吸,并记录最后2分钟的时间窗口以分析每个受试者的RR间期。采用Bland和Altman分析法对方法间RR间期信号与可靠性进行互相关分析。结果:互相关良好,平均值为0.98±0.01,信号之间没有滞后或延迟。Polar®HRMI Board和ECG的MeanRRi的偏差为0.03±0.08s或8.0%,无显著差异。结论:Polar®HRMI委员会可用于评估系列RR间期。结果支持平均RR间期与静息心电图相比的可靠性。
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引用次数: 0
Trunk muscle activity while lifting objects of expected and unexpected weight in normal subjects and patients with low back pain 正常受试者和腰痛患者在举起预期和意外重量物体时的躯干肌肉活动
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-08-03 DOI: 10.3233/ies-230044
C. Sekine, Haruna Hayashi, R. Hirabayashi, H. Yokota, Kazusa Saisu, T. Takabayashi, M. Edama
BACKGROUND: Lifting heavy objects can induce postural stress and low back pain. OBJECTIVE: This study aimed to examine the effect of object weight expectations on trunk muscle activity and assess trunk muscle activity in people with chronic low back pain. METHODS: Twenty-two male college students (11 healthy and 11 participants with chronic low back pain) were recruited. The procedure was performed in three settings: lifting an expected 5-kg object, lifting an unexpected 10-kg object, and lifting an expected 10-kg object. Lifting was divided into five phases, and the muscle activity in each phase was compared between groups (chronic low back pain/control), object weight predictions, and phases. RESULTS: Compared to the control group, the chronic low back pain group had higher erector spinae muscle activity, regardless of weight or prediction, and significantly higher rectus femoris muscle activity in the early lifting phase of the expected 10 kg object (p= 0.043). Compared to when lifting the expected 10 kg object, erector spinae muscle activity was higher in the early lifting phase of the control group when lifting the unexpected 10-kg object (p= 0.016). CONCLUSIONS: Healthy individuals and individuals with chronic low back pain had different recruitment strategies for lifting objects heavier than predicted.
背景:举起重物会引起体位压力和腰痛。目的:本研究旨在检验对象体重预期对慢性腰痛患者躯干肌肉活动的影响,并评估其躯干肌肉活动。方法:招募22名男大学生(11名健康人和11名慢性腰痛患者)。该程序在三种情况下进行:举起预期的5公斤物体、举起预期的10公斤物体和举起预期的十公斤物体。举重分为五个阶段,并在各组(慢性腰痛/对照组)、物体重量预测和阶段之间比较每个阶段的肌肉活动。结果:与对照组相比,无论体重或预测如何,慢性腰痛组在预期10 kg物体的早期举起阶段都有更高的竖脊肌活动,股直肌活动显著更高(p=0.043),对照组在举起意外的10公斤物体时,早期举起阶段的竖脊肌活动较高(p=0.016)。结论:健康个体和慢性腰痛个体在举起比预测更重的物体时有不同的补充策略。
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引用次数: 0
Electromyographic activity of periscapular muscles in symptomatic people: Does scapular dyskinesis have an impact on it? 有症状的人肩胛骨周围肌肉的肌电图活动:肩胛骨运动障碍对其有影响吗?
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-08-03 DOI: 10.3233/ies-230040
Santos de Holanda Laís Regina, Gabriel de Amorim Batista, Oliveira Felipe, A. Pitangui, R. D. de Araújo
BACKGROUND: Scapular dyskinesis (SD) is a modification of the positioning and movement of the scapula and is associated with shoulder pain. Exercises to strengthen the shoulder and scapular muscles have been proposed as a therapeutic strategy to reduce pain and improve function. OBJECTIVE: We aimed to investigate the electromyographic activity of the periscapular and trunk muscles in individuals with shoulder pain and SD in different multi-joint exercises. METHODS: Thirty-two subjects with subacromial pain, of both sexes, with the presence or absence of SD, participated in this study. Volunteers performed five repetitions in five exercises (Closed Row; Pronated Row; Push-up; Scapular Push-up; T-push-up). The activity of the upper trapezius, middle trapezius, lower trapezius, serratus anterior, external oblique, and rectus abdominis muscles was recorded using electromyography. RESULTS: Our results showed a decrease in the electromyographic activity of the serratus anterior and external oblique during the T-push-up exercise in individuals with shoulder pain and SD. No differences were observed between groups for the trapezius and the rectus abdominis. CONCLUSIONS: Rehabilitation programs may initially prioritize rowing and push-up exercises to strengthen periscapular muscles. More complex exercises with greater mechanical demand on the kinetic chain, such as the T-push-up, may have to be implemented in later phases.
背景:肩胛骨运动障碍(SD)是肩胛骨定位和运动的一种改变,与肩部疼痛有关。加强肩部和肩胛骨肌肉的运动已被提出作为一种减轻疼痛和改善功能的治疗策略。目的:我们旨在研究肩部疼痛和SD患者在不同的多关节运动中肩胛周围和躯干肌肉的肌电图活动。方法:32名患有肩峰下疼痛的受试者,包括有无SD的男女,参与了这项研究。志愿者在五个练习中进行了五次重复(闭排、俯卧、俯卧撑、肩胛骨俯卧撑、T型俯卧撑)。用肌电图记录上斜方肌、中斜方肌和下斜方肌,前锯肌、外斜肌和腹直肌的活动。结果:我们的研究结果显示,在肩部疼痛和SD患者的T型俯卧撑运动中,前斜肌和外斜肌的肌电图活动减少。斜方肌和腹直肌在各组之间没有观察到差异。结论:康复计划最初可能会优先考虑划船和俯卧撑运动,以增强肩胛周围肌肉。对运动链有更大机械需求的更复杂的练习,如T形俯卧撑,可能必须在后面的阶段进行。
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引用次数: 0
Impact of differing eccentric-concentric phase durations on muscle damage and anabolic hormones 不同的偏心-同心相持续时间对肌肉损伤和合成代谢激素的影响
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-07-31 DOI: 10.3233/ies-220078
Fatma Kızılay, Muhammed Emin Kafkas, M. Çağatay Taşkapan, Ali Haydar Demirel, Z. Radák
BACKGROUND: Resistance exercises are widely used to enhance muscle hypertrophy. Hypertrophy occurs with effect of mechanical loading, metabolic stress, and muscle damage. The time under tension in eccentric, isometric, and concentric phases of resistance exercises can alter muscle damage and anabolic hormone responses. OBJECTIVES: The aim of the study was to reveal the effect of the time spent in the concentric and eccentric phases of the movement on muscle damage and anabolic hormone response during resistance exercise. METHODS: Ten male subjects participated in the study. A, B, C tempo protocols were created by changing the time under tension to be 1 or 2 seconds in the eccentric and concentric phases of bench press and squat movements. In all protocols, isometric phases were 0 sec. The metronome was used to apply tempos. Blood samples were taken before each protocol, after administration, and in the 24th, 48th and 72nd hours after exercise; and serum insulin, testosterone, Insuline-like Growth Factor-1 (IGF-1), Creatine Kinase (CK) and Lactate Dehydrogenase (LDH) levels were evaluated. RESULTS: Time-wise changes in CK were statistically different for all protocols (p< 0.05). CK levels in the 24th hour of the protocol C and the 48th hour of the protocol B were significantly higher than those in the other protocols (p< 0.05). IGF-1 and testosterone levels were significantly higher in the protocol B in the post-test, compared to the other protocols (p< 0.05). Insulin levels in the 24t⁢h hour were significantly higher in the protocol B compared to those in others (p< 0.05). Time-wise changes in LDH parameters were not statistically significant in any hours (p> 0.05). CONCLUSIONS: Extending time under tension in the eccentric phase of a bout of resistance exercise appears to affect the anabolic hormone response and muscle damage. In this way, increased metabolic response and mechanical stress can induce muscle mass gain.
背景:阻力运动被广泛用于增强肌肉肥大。肥厚发生在机械负荷、代谢应激和肌肉损伤的作用下。在阻力运动的偏心、等距和同心阶段,受张力的时间可以改变肌肉损伤和合成代谢激素反应。目的:这项研究的目的是揭示运动的同心和偏心阶段的时间对肌肉损伤和抗阻运动中合成代谢激素反应的影响。方法:10名男性受试者参与研究。在卧推和深蹲运动的偏心和同心阶段,通过将受压时间改变为1或2秒来创建A、B、C节奏协议。在所有方案中,等距相位均为0秒。节拍器用于施加节奏。每次方案前、给药后、运动后24、48、72小时采集血样;血清胰岛素、睾酮、胰岛素样生长因子-1 (IGF-1)、肌酸激酶(CK)和乳酸脱氢酶(LDH)水平。结果:不同治疗方案CK随时间变化差异有统计学意义(p< 0.05)。方案C第24小时和方案B第48小时CK水平显著高于其他方案(p< 0.05)。测试后,方案B组IGF-1和睾酮水平显著高于其他方案(p< 0.05)。方案B组24t±h h时胰岛素水平显著高于其他组(p< 0.05)。各小时LDH参数随时间变化无统计学意义(p < 0.05)。结论:延长抗阻运动偏心期的紧张时间可能会影响合成代谢激素反应和肌肉损伤。通过这种方式,增加的代谢反应和机械应力可以诱导肌肉质量增加。
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引用次数: 0
Shoulder rotator strength in judo athletes: A cross-sectional study with different experience levels 柔道运动员肩旋转肌力量的横断面研究
IF 0.7 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2023-07-01 DOI: 10.3233/ies-230027
Daniele Detanicoa, Rodrigo Ghedini Gheller, Marina Saldanha da Silva Athayde, Rafael Lima Kons
BACKGROUND: Judo practice requires high effort from athletes, mainly focused on the upper limbs, involving the shoulder complex. OBJECTIVE: To compare the shoulder internal (IR) and external (ER) rotation peak torque and conventional ratio (ER: IR) between judo athletes from different experience levels (novice vs. advanced) and to verify the distribution of athletes according to the ER: IR ratio classification. METHODS: Thirty-nine male judo athletes were divided into two groups (advanced: 20.5 ± 2.8 years and novice: 22.1 ± 5.5 years). The athletes performed a shoulder isokinetic protocol to measure IR and ER strength and the ER: IR ratio in novice and advanced groups. Chi-square tests were used to investigate the distribution of athletes according to the different groups of ER: IR ratio classification, and t-tests were used to compare the IR and ER peak torque and the ER: IR ratio between novice and advanced groups, with the level of significance set at 5%. RESULTS: The main results showed higher values of IR peak torque (77.3 ± 15.7 N⋅m in advanced vs. 48.2 ± 8.4 N⋅m in novices; p= 0.013), and a lower ER: IR conventional ratio in advanced athletes compared to novices (0.63 ± 0.1 advanced vs. 0.73± 0.2 in novice; p= 0.01). When individual values were analyzed, advanced athletes presented higher imbalance (< 0.66 ER: IR ratio) than novices (p= 0.023). CONCLUSION: Advanced athletes presented higher shoulder IR peak torque, but higher imbalance in the ER: IR ratio than novices, probably because the long-term training induced an increase in IR strength without concomitant development in ER strength. Coaches and strength and conditioning trainers should monitor shoulder rotator strength in judo athletes to avoid muscle imbalances in this region, which is frequently employed in judo training routines.
背景:柔道训练要求运动员付出很大的努力,主要集中在上肢,涉及肩部综合体。目的:比较不同经验水平(新手与高级)柔道运动员肩关节内(IR)、外(ER)旋转峰值扭矩和常规比(ER: IR),并根据ER: IR比分类验证运动员的分布。方法:39名男性柔道运动员分为两组(高龄组:20.5±2.8岁)和新手组:22.1±5.5岁)。运动员执行肩部等速运动方案来测量新手和高级组的IR和ER强度以及ER: IR比率。采用卡方检验考察运动员按不同组ER: IR比值分类的分布情况,采用t检验比较新手组和高级组之间IR、ER峰值扭矩和ER: IR比值,显著性水平设为5%。结果:主要结果显示:高级组IR峰值扭矩(77.3±15.7 N·m)高于新手组(48.2±8.4 N·m);p= 0.013),高级运动员的ER: IR比新手低(高级运动员0.63±0.1比新手0.73±0.2;p = 0.01)。当个体值分析时,高水平运动员的ER: IR比高于新手(p= 0.023)(< 0.66)。结论:与新手相比,高水平运动员肩IR峰值扭矩更高,但ER: IR比例失衡程度更高,这可能是由于长期训练导致IR强度增加,但ER强度没有相应的提高。教练和力量训练师应该监测柔道运动员的肩旋肌力量,以避免该区域的肌肉不平衡,这在柔道训练中经常使用。
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Isokinetics and Exercise Science
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