■Tremblay,M,AndersonSirois,S,Verville,W,螺旋钻,M,Abboud,J,和Descarreaux,急性上半身和下半身神经肌肉疲劳对棒球投手速度的影响:一项初步研究。JStrengthCondResXX(X):000-000,2024-这项初步研究的目的是探索上半身和下半身神经肌肉疲劳方案对棒球投手速度的急性影响。招募了16名棒球投手,并采用交叉设计来满足研究目的。投手接受了两次测试,相隔7天,他们的上半身和下半身爆炸性,俯仰速度,和他们投掷臂的肌肉酸痛感(前臂屈肌,二头肌,前三角肌,和上斜方肌)在上身和下身神经肌肉疲劳方案之前和之后进行评估。方差分析和配对t检验(p<0.05)用于识别和比较预评分和后评分。遵循两种疲劳方案,结果表明,俯仰速度的时间显着减少(p=0.005,ηp2=0.462),前臂屈肌的肌肉酸痛感增加(p=0.005,ηp2=0.470),前三角肌(p=0.045,ηp2=0.274),和上斜方肌(p=0.023,ηp2=0.339)。配对t检验结果表明,上半身(p<0.01)和下半身(p<0.01)的爆发性得分在神经肌肉前和神经肌肉疲劳后方案中显着降低。这些试点研究结果显示了不同的锻炼方案对投手爆发力的影响,速度,和肌肉酸痛感强调需要进一步研究针对上半身或下半身运动对投球性能的急性影响,特别是在投手的位置。
UNASSIGNED: Tremblay, M, Anderson Sirois, S, Verville, W, Auger, M, Abboud, J, and Descarreaux, M. Acute upper-body and lower-body neuromuscular fatigue effect on
baseball pitchers\' velocity: A pilot
study. J Strength Cond Res 38(8): 1447-1452, 2024-The purpose of this pilot
study was to explore the acute effect of upper-body and lower-body neuromuscular fatigue protocols on
baseball pitchers\' velocity. Sixteen
baseball pitchers were recruited, and a crossover design was used to meet the
study purpose. Pitchers were tested twice, 7 days apart, with their upper-body and lower-body explosiveness, pitching velocity, and muscle soreness perception of their throwing arm (forearm flexors, biceps, anterior deltoid, and upper trapezius muscles) assessed before and after an upper-body and lower-body neuromuscular fatigue protocol. Two-way analysis of variances and paired t tests ( p < 0.05) were used to identify and compare prescores and postscores. Following both fatigue protocols, results revealed a significant decrease in time for pitching velocity ( p = 0.005, ηp 2 = 0.462), and increases in muscle soreness perception of the forearm flexors ( p = 0.005, ηp 2 = 0.470), anterior deltoid ( p = 0.045, ηp 2 = 0.274), and upper trapezius ( p = 0.023, ηp 2 = 0.339) muscles. Paired t test results showed a significant decrease in preneuromuscular and postneuromuscular fatigue protocol in the upper-body ( p < 0.01) and lower-body ( p < 0.01) explosiveness scores. These pilot study results show the impact of different exercise protocols on pitchers\' explosiveness, velocity, and muscle soreness perception emphasizing the need for further investigation into the acute effect of exercise targeting the upper or lower-body on pitching performance, specifically at the pitcher\'s position.