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Hamstring flexibility increases the same with 3 or 9 repetitions of stretching held for a total time of 90 s.
Johnson, A Wayne; Mitchell, Ulrike H; Meek, Katie; Feland, J Brent.
Afiliação
  • Johnson AW; Brigham Young University, Dept. of Exercise Sciences, Provo, UT 84602, USA. Electronic address: wayne_johnson@byu.edu.
  • Mitchell UH; Brigham Young University, Dept. of Exercise Sciences, Provo, UT 84602, USA. Electronic address: rike_mitchell@byu.edu.
  • Meek K; Brigham Young University, Dept. of Exercise Sciences, Provo, UT 84602, USA. Electronic address: katohead@gmail.com.
  • Feland JB; Brigham Young University, Dept. of Exercise Sciences, Provo, UT 84602, USA. Electronic address: brent_feland@byu.edu.
Phys Ther Sport ; 15(2): 101-5, 2014 May.
Article em En | MEDLINE | ID: mdl-23896197
OBJECTIVE: To determine if stretching for a constant total time with differing repetition durations and number of repetitions over a 6-week period produced different changes in hamstring flexibility measured by knee extension range of motion (ROM). DESIGN: Randomized Control Trial. SETTING: University laboratory. SUBJECTS: 34 volunteers, 18-25 years old with tight hamstrings as determined by a greater than 30° loss of knee extension with hip flexed to 90° participated in the study. MAIN OUTCOME MEASURES: Change in knee extension ROM was assessed in participants who were randomly assigned to a control, or to a stretching group of either 10 s for 9 repetitions or 30 s for 3 repetitions, for a total stretch time of 90 s. Each group stretched 6 days a week for 6 weeks. RESULTS: Pre to post stretch comparison indicated both stretching groups were successful in increasing joint ROM (11.6 ± 5.25°-13.4 ± 5.36°) over the control (F = 19.77, p < 0.003). However, there was no significant difference between the stretching groups (p = 0.9). CONCLUSION: Stretching for 6 weeks for total of 90 s showed increased joint ROM regardless of the number of repetitions or the duration of each individual stretch.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Amplitude de Movimento Articular / Músculo Esquelético / Articulação do Joelho / Contração Muscular Tipo de estudo: Clinical_trials Limite: Adolescent / Adult / Female / Humans / Male Idioma: En Ano de publicação: 2014 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Amplitude de Movimento Articular / Músculo Esquelético / Articulação do Joelho / Contração Muscular Tipo de estudo: Clinical_trials Limite: Adolescent / Adult / Female / Humans / Male Idioma: En Ano de publicação: 2014 Tipo de documento: Article