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Int J Exerc Sci. 2018 Oct 1;11(6):1074-1085. eCollection 2018.

Comparison of Two Static Stretching Procedures on Hip Adductor Flexibility and Strength.

Author information

1
Herbert H. and Grace A. Dow College of Health Professions, School of Health Sciences, Division of Exercise Science, Central Michigan University, Mt. Pleasant, MI, USA.
2
Herbert H. and Grace A. Dow College of Health Professions, School of Rehabilitation and Medical Sciences, Doctoral Program in Physical Therapy, Central Michigan University, Mt. Pleasant, MI, USA.

Abstract

It has been shown that acute static stretching (SS) may increase flexibility, improve performance and reduce the risk of muscle strains, but may also result in decreased maximal force output. Literature review revealed little research had specifically been done on the most effective ways to stretch the hip adductor muscles. The purpose was to determine the effects that an acute bout of SS (active vs passive) has on hip adductor flexibility and maintenance of strength. Randomized cross-over study using a 3 × 2 (Condition X Time) repeated measures ANOVA statistical design. Forty healthy and physically active subjects (20 male and 20 female) that screened positive for limited flexibility in hip adductor range of motion (ROM) participated. Following a warm-up, baseline maximal voluntary isometric contraction (MVC) and peak static ROM tests were administered. On separate days subjects randomly performed either 60 seconds of passive SS, active SS, or a time-matched control protocol before post measures were recorded for MVC and ROM. There was a significant time effect (p<0.001) that revealed both types of SS and control resulted in increased ROM pre-to-post (passive = 1.0; active = 1.1; control = 0.6 degrees) with no between condition differences (p=0.171). Neither type of SS resulted in reduced strength. Both methods minimally increased hip adductor flexibility without a decrease in force output. This suggests that individuals do not need to avoid SS for the hip adductors prior to engaging in physical activity for fear of a strength decrement.

KEYWORDS:

Stretching intensity; active stretching; groin muscles; hip abduction; maximal force output; non-weight bearing; passive stretching; range of motion; warm-up procedures; weight bearing

PMID:
30338021
PMCID:
PMC6179425

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