Greenstein Jay S, Bishop Barton N, Edward Jean S, Topp Robert V
Sport and Spine Rehab Clinical Research Foundation, Rockville, MD, USA.
J Manipulative Physiol Ther. 2011 Mar-Apr;34(3):195-200. doi: 10.1016/j.jmpt.2011.02.004.
Hamstring injuries are a common occurrence among professional football cheerleaders. The purpose of this study is to identify the effects of an eccentric, closed-chain hamstring exercise intervention on hamstring injury-associated pain during the course of the football season among professional football cheerleaders.
Forty-three female cheerleaders participated in an eccentric, closed-chain hamstring exercise intervention protocol provided by doctors of chiropractic that incorporated loops of elastic-band or Thera-Band Loops (Hygenic Corporation, Akron, OH) during practice and at home during the regular football season. Hamstring injury-related pain was assessed in June, during team selection; in September, at the start of the season; and in December, at the end of season. No intervention was applied between June and September, although the sample participated in 4 hours of practice 2 to 3 times per week. The intervention was applied to the entire sample regardless of hamstring injury-related pain during the regular football season between September and December. The interventions included 2 exercises and were completed bilaterally 2 times per week at each biweekly practice and were encouraged to be done at least 3 additional times per week at home on nonpractice days.
Among the subsample who reported hamstring-related injury pain between June and September, the exercise intervention significantly decreased (P < .007) pain between September (6.07 ± 0.58) and December (3.67 ± 0.65).
The eccentric, closed-chain hamstring exercise intervention reduced hamstring injury-related pain among this group of professional football cheerleaders.
腘绳肌损伤在职业橄榄球啦啦队队员中很常见。本研究的目的是确定离心、闭链腘绳肌锻炼干预对职业橄榄球啦啦队队员在橄榄球赛季期间与腘绳肌损伤相关疼痛的影响。
43名女性啦啦队队员参与了由整脊医生提供的离心、闭链腘绳肌锻炼干预方案，该方案在常规橄榄球赛季的训练期间及在家中进行，使用弹力带圈或Thera - Band圈（Hygenic公司，俄亥俄州阿克伦）。在6月（选拔队员期间）、9月（赛季开始时）和12月（赛季结束时）评估与腘绳肌损伤相关的疼痛。6月至9月期间未进行干预，尽管样本每周参加2至3次、每次4小时的训练。在9月至12月的常规橄榄球赛季期间，无论与腘绳肌损伤相关的疼痛情况如何，对整个样本都进行干预。干预包括2项锻炼，在每两周一次的训练中，双侧各完成2次，每周进行2次，并鼓励在非训练日在家中每周至少额外进行3次。
在6月至9月期间报告有腘绳肌相关损伤疼痛的子样本中，锻炼干预使9月（6.07±0.58）至12月（�.67±0.65）的疼痛显著降低（P<.007）。
离心、闭链腘绳肌锻炼干预减轻了这群职业橄榄球啦啦队队员中与腘绳肌损伤相关的疼痛。
