School of Exercise Science, Australian Catholic University, Brisbane, Australia.
Int J Sports Physiol Perform. 2013 Mar;8(2):130-8. doi: 10.1123/ijspp.8.2.130. Epub 2012 Jul 31.
To the authors' knowledge, no study has investigated the concurrent repeated, high-intensity (RHIA) and repeated-sprint activity (RSA) of intermittent team-sport competition.
In this study, they report on the RSA of elite women's football competition. In addition, they describe the nature of RHIA (eg, striding and sprinting activities) that involve a high energy cost and are associated with short (ie, ≤20 s) recovery periods.
Thirteen elite women soccer players underwent video-based time-motion analysis on 34 occasions during national and international standard matches. RSA and RHIA were defined as successive (ie, 2) sprints or striding and sprinting efforts that occurred with ≤20 s between efforts.
The number of RSA and RHIA bouts performed was similar between the first and second halves of matches. Sprinting and striding/sprinting durations tended to remain relatively stable irrespective of the number of efforts in an RSA or RHIA bout or the period of play. However, recovery duration between efforts increased in the second half, when a greater number of efforts were performed per bout.
These findings suggest that first- to second-half reductions in RHIA and RSA do not occur in elite women's soccer competition. However, players increase the amount of low-intensity recovery undertaken between RHIA and RSA efforts, most likely in an attempt to maintain RHIA and RSA performance. These findings emphasize the importance of RSA and RHIA to elite women's soccer and highlight the importance of training this quality to prevent reductions in performance during competitive match play.
据作者所知，尚无研究调查过间歇性团队运动比赛中的重复高强度（RHIA）和重复冲刺活动（RSA）的并发情况。
在这项研究中，他们报告了女子足球精英比赛中的 RSA。此外，他们还描述了 RHIA 的性质（例如，跨步和冲刺活动），这些活动需要高能量消耗，并与短（即≤20 秒）的恢复期有关。
13 名精英女子足球运动员在国家和国际标准比赛中进行了 34 次基于视频的时间动作分析。RSA 和 RHIA 被定义为连续（即 2 次）冲刺或跨步和冲刺努力，两次努力之间的间隔时间≤20 秒。
比赛的前半段和后半段进行的 RSA 和 RHIA 回合数相似。无论 RSA 或 RHIA 回合中的努力次数或比赛期间如何，冲刺和跨步/冲刺的持续时间往往相对稳定。然而，当每回合的努力次数增加时，两次努力之间的恢复时间在比赛的后半段会增加。
这些发现表明，在女子足球精英比赛中，RHIA 和 RSA 不会从前半段减少到后半段。然而，运动员在 RHIA 和 RSA 之间增加了低强度恢复的量，这很可能是为了保持 RHIA 和 RSA 的表现。这些发现强调了 RSA 和 RHIA 对女子足球精英的重要性，并突出了训练这种素质的重要性，以防止在竞技比赛中表现下降。
