前交叉韧带重建术后重返运动的业余运动员动态多关节与单关节力量及垂直跳跃表现
简介
本研究纳入53例前交叉韧带（ACL）重建后已重返运动的业余运动员，评估其双侧下肢在箱式深蹲、后脚抬高分腿蹲（RFESS）、伸膝动作中的5次最大重复（5RM）相对力量，以及反向跳（CMJ）、单腿CMJ和单腿下落跳（DJ）的垂直跳跃表现。关键发现：ACL重建侧在单关节伸膝力量和所有跳跃测试中均显著低于健侧，但RFESS（多关节动作）无显著差异；男性在所有指标上均…
英文摘要
BACKGROUND: The aim of this study is to examine relative five-repetition maximum (RM) box squat, rear-foot elevated split squat (RFESS), leg extension strength and vertical jump scores in amateur athletes who have returned to sport following anterior cruciate ligament (ACL) reconstruction. METHODS: Overall, 53 amateur athletes completed a strength and vertical jump assessment including 5RM box squat, RFESS, Leg Extension, countermovement jump (CMJ), single leg (SL) CMJ and SL drop jump (DJ). RESULTS: Relative 5RM values of 1.16, 0.6 and 0.65 were found for box squat, RFESS and leg extension respectively. Significant main effects of limb were observed across most outcomes, with the ACL-reconstructed limb showing lower strength and jump performance. Males outperformed females on all strength and jump metrics. A main effect of graft type was found for leg extension strength, but post-hoc comparisons were not significant. Time from surgery did not moderate the effects of limb, gender, or graft type, except for one interaction with eccentric deceleration impulse. CONCLUSIONS: Single joint strength and vertical jump scores were lower in the ACL reconstructed limb in comparison to the uninvolved limb, whereas no differences were found in RFESS. Females showed lower relative scores in all tests, whereas no difference was found according to graft type. Time from surgery did not moderate the effects of limb, gender and graft type on strength and vertical jump scores, except for SLCMJ eccentric deceleration impulse.