Document Type

Article

Language

eng

Format of Original

6 p.

Publication Date

3-2011

Publisher

Elsevier

Source Publication

Journal of Manipulative and Physiological Therapeutics

Source ISSN

0161-4754

Original Item ID

doi: 10.1016/j.jmpt.2011.02.004

Abstract

Objective

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.

Methods

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.

Results

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).

Conclusions

The eccentric, closed-chain hamstring exercise intervention reduced hamstring injury–related pain among this group of professional football cheerleaders.

Comments

Accepted version. Journal of Manipulative and Physiological Therapeutics, Vol. 34, No. 3 (March-April 2011): 195-200. DOI. © 2011 Elsevier. Used with permission.

Robert Topp was affiliated with the University of Louisville at the time of publication.

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