急性全身振动与下肢运动的应用:对下肢肌肉同心扭矩的影响

IF 0.8 Q4 HEALTH CARE SCIENCES & SERVICES
A. Hawkey, A. Dallaway
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引用次数: 1

摘要

摘要研究目的:由于有相反的证据表明急性全身振动训练(WBVT)对运动成绩的有效性,本研究考察了WBVT对股四头肌(Q)和腿筋(H)的同心扭矩的影响。材料和方法:经伦理批准,11名男性团队运动运动员(年龄:22.9±3.3岁,身高:1.80±0.07米,体重:82.5±12.6公斤)完成了三次单独的每周WBVT训练。在每次疗程中,使用等速测力仪记录基线和WBVT干预后的Q和H同心扭矩测量。等速膝关节伸展和屈曲在180°−1至90°运动范围内进行。对于训练干预,振幅保持在2mm,频率设置为0Hz、30Hz和50hz;随机分组,因此参与者每组经历一个频率。扭矩数据(Nm)和H / Q比值(H: Q)分别采用重复测量的3-way和2-way方差分析(ANOVA)进行分析,受试者内部有3个因素:频率、肌肉群和干预。结果:主交互效应(频率x肌群x干预)不显著(P = 0.327)。肌肉组x频率(P = 0.029)和肌肉组x干预(P = 0.001)之间存在显著的相互作用。无论WBVT如何,干预均显著提高H的同心转矩(P = 0.003),显著降低Q的同心转矩(P = 0.031)。H: Q与频率的交互作用不显著(P = 0.262),干预显著改善了H: Q (P = 0.001)。结论:团队运动运动员对下半身运动的峰值同心扭矩有肌肉特异性反应。急性WBVT对Q或H强度没有额外的积极或消极影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Application of acute whole-body vibration and lower-body exercise: effects on concentric torque in lower-limb muscles
Summary Study aim: With contrary evidence regarding the effectiveness of acute whole-body vibration training (WBVT) on sporting performance, the current study examined WBVT’s effect on concentric torque of the quadriceps (Q) and hamstrings (H). Material and methods: Following ethical approval, 11 male team sport players (age: 22.9 ± 3.3 yrs, height: 1.80 ± 0.07 m, mass: 82.5 ± 12.6 kg) completed three separate weekly WBVT sessions. Baseline and post – WBVT intervention measurements of Q and H concentric torque were recorded, using an isokinetic dynamometer, at each session. Isokinetic knee extension and flexion was performed at 180os−1 through 90o range of motion. For the training intervention, vibration amplitude remained at 2 mm, while frequency was set at 0Hz, 30Hz or 50 Hz; randomised so participants experienced one frequency per session. Torque data (Nm) and H and Q ratio (H: Q) were analysed using 3-way and 2-way ANOVA with repeated measures respectively, with three within subjects’ factors: frequency, muscle group and intervention. Results: Main interaction effect (frequency x muscle group x intervention) was insignificant (P = 0.327). Significant muscle group x frequency (P = 0.029) and muscle group x intervention (P = 0.001) interactions were found. Intervention, regardless of WBVT, significantly increased concentric torque of H (P = 0.003) and significantly reduced concentric torque of Q (P = 0.031). While H: Q x frequency interaction was insignificant (P = 0.262), the intervention significantly improved H: Q (P = 0.001). Conclusions: Team sport athletes experience a muscle-specific response in peak concentric torque to lower-body exercise. Acute WBVT does not provide additional positive or negative effects on Q or H strength.
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来源期刊
Biomedical Human Kinetics
Biomedical Human Kinetics HEALTH CARE SCIENCES & SERVICES-
CiteScore
1.50
自引率
12.50%
发文量
0
审稿时长
15 weeks
期刊介绍: The leading idea is the health-directed quality of life. The journal thus covers many biomedical areas related to physical activity, e.g. physiology, biochemistry, biomechanics, anthropology, medical issues associated with physical activities, physical and motor development, psychological and sociological issues associated with physical activities, rehabilitation, health-related sport issues and fitness, etc.
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