Talpey Scott W, Axtell Robert, Gardner Elizabeth, James Lachlan
Exercise and Sport Science, School of Health and Life Sciences, Federation University Australia, Ballarat Victoria 3350, Australia.
Exercise Science Department, Southern Connecticut State University, New Haven, CT 06515, USA.
Sports (Basel). 2019 Jan 9;7(1):18. doi: 10.3390/sports7010018.
The tactical and technical components of training become a primary emphasis, leaving less time for targeted development of physical qualities that underpin performance during the competition phase of a training program. A deemphasis on physical preparation during the in-season training phase may make athletes more susceptible to injury and decrease performance on the field. Two weeks prior to the start and one week following the conclusion of the 16-week collegiate lacrosse season, lower body force production was assessed in eight National Collegiate Athletic Association (NCAA) Division I Men's Lacrosse athletes. Lower body force production capabilities were determined via the performance of countermovement jumps (CMJ) and drop jumps (DJ) performed on a force plate and isokinetic strength testing of the quadriceps and hamstring muscle groups across three velocities. Isokinetic strength of the hamstrings and the hamstring to quadriceps strength ratio were maintained or increased over the course of the competition phase of training. Relative peak force obtained from the CMJ and the reactive strength index from the DJ decreased significantly over the season. The maintenance of isokinetic strength and the decrease in CMJ and DJ performance may indicate the presence of neuromuscular fatigue that accumulated over the course of the season.
训练的战术和技术部分成为主要重点，从而减少了用于针对性发展身体素质的时间，而这些身体素质是训练计划竞赛阶段表现的基础。在赛季内训练阶段对身体准备的重视不足可能会使运动员更容易受伤，并降低其在赛场上的表现。在为期16周的大学长曲棍球赛季开始前两周和结束后一周，对8名美国全国大学体育协会（NCAA）一级男子长曲棍球运动员的下肢力量产生情况进行了评估。通过在测力板上进行的反向纵跳（CMJ）和下落跳（DJ）以及对股四头肌和腘绳肌肌群在三种速度下进行等速力量测试来确定下肢力量产生能力。在训练的竞赛阶段，腘绳肌的等速力量以及腘绳肌与股四头肌的力量比保持不变或有所增加。在整个赛季中，从CMJ获得的相对峰值力量和DJ的反应力量指数显著下降。等速力量的维持以及CMJ和DJ表现的下降可能表明在赛季过程中积累了神经肌肉疲劳。
