Fernandes John F T, Lamb Kevin L, Twist Craig
Higher Education Sport, Hartpury University, Hartpury GL19 3BE, UK.
Department of Sport and Exercise Sciences, University of Chester, Chester CH1 3BJ, UK.
J Funct Morphol Kinesiol. 2020 Nov 5;5(4):79. doi: 10.3390/jfmk5040079.
This study assessed the influence of fat mass to fat-free mass ratio (FM:FFM) on recovery from plyometric exercise.
After assessment of body composition, 20 male team sport players (age 20.7 ± 1.1 years; body mass 77.1 ± 11.5 kg) were divided into low- ( = 10; 0.11 ± 0.03) and normal- ( = 10; 0.27 ± 0.09) fat groups based on FM:FFM ratio. Thereafter, participants completed measurements of knee extensor torque at 60 and 240°∙s, countermovement jump flight time, plasma creatine kinase (CK) activity and perceived muscle soreness (VAS) before and at 0, 24 and 48 h after 10 × 10 maximal plyometric vertical jumps.
Evidence of muscle damage was confirmed by alterations in VAS, peak torque at 60 and 240°∙s and flight time at 0, 24 and 48 h after plyometric exercise ( < 0.05). CK was increased at 0 and 24 h ( < 0.05) but returned to baseline values by 48 h. No time by group effects were observed for any of the dependent variables ( > 0.05).
The current findings indicate that while muscle damage was present after plyometric exercise, the magnitude was similar across the two body composition groups. Applied practitioners can allow for a similar recovery time after plyometric exercise in those with low and normal body fat.
本研究评估了体脂与去脂体重比（FM:FFM）对增强式运动恢复的影响。
在评估身体成分后，20名男性团队运动运动员（年龄20.7±1.1岁；体重77.1±11.5千克）根据FM:FFM比被分为低体脂组（n = 10；0.11±0.03）和正常体脂组（n = 10；0.27±0.09）。此后，参与者在进行10×10次最大增强式垂直跳跃之前以及之后的0、24和48小时，完成了60和240°∙s时的伸膝扭矩、反向纵跳飞行时间、血浆肌酸激酶（CK）活性以及肌肉酸痛感（视觉模拟评分法）的测量。
通过视觉模拟评分法、60和240°∙s时的峰值扭矩以及增强式运动后0、24和48小时的飞行时间的变化，证实了肌肉损伤的存在（P<0.05）。CK在0和24小时时升高（P<0.05）但到48小时时恢复到基线值。对于任何因变量，均未观察到时间×组别的效应（P>0.05）。
当前研究结果表明，虽然增强式运动后存在肌肉损伤，但两个身体成分组的损伤程度相似。应用领域的从业者可以为低体脂和正常体脂的人群在增强式运动后留出相似的恢复时间。
