Álvaro Bohajar-Lax1, Raquel Vaquero-Cristóbal2, Luis Espejo-Antúnez3, Pedro Ángel López-Miñarro1. 1. Facultad de Educación. Universidad de Murcia.. palopez@um.es. 2. Cátedra de Traumatología del Deporte. Universidad Católica de Murcia, Murcia.. rvaquero@ucam.edu. 3. Departamento de Terapia Médico-Quirúrgica. Universidad de Extremadura, España.. palopez@um.es.
Abstract
INTRODUCTION: students who do hamstring stretching exercises, twice per week on alternate days, have showed significant increases on extensibility. Objetive: to compare the effects of a hamstring stretching program includes in the physical education classes in booth groups of adolescent, which had a different class session weekly distribution (non-consecutive sessions vs. consecutive sessions). METHOD:fifty-eight adolescent students did a static-active stretching program on hamstring in the warm-up of both weekly physical education sessions for five weeks. The total duration of the stretching was five minutes. Students were divided in two groups: group A, with 30 students, had consecutive sessions (monday-tuesday), and the group B, with 29 students, had non-consecutive sessions (tuesday-friday). Hamstring extensibility was evaluated with the sit-and-reach test before (pre-test) and after (post-test) the intervention program. RESULTS AND DISCUSSION: there was found a significant increase in the sit-and-reach score in the group A (+2,15 cm) (p = 0.003) and in the group B (+2,31 cm) (p < 0.001). No significant differences were found between groups in the pre-test and the post-test (p > 0.05). CONCLUSIONS: the implementation of an intervention program for five weeks, twice sessions a week, induded increases on hamstring extensibility in students. The class session weekly distribution does not affect the results. Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.
RCT Entities:
INTRODUCTION: students who do hamstring stretching exercises, twice per week on alternate days, have showed significant increases on extensibility. Objetive: to compare the effects of a hamstring stretching program includes in the physical education classes in booth groups of adolescent, which had a different class session weekly distribution (non-consecutive sessions vs. consecutive sessions). METHOD: fifty-eight adolescent students did a static-active stretching program on hamstring in the warm-up of both weekly physical education sessions for five weeks. The total duration of the stretching was five minutes. Students were divided in two groups: group A, with 30 students, had consecutive sessions (monday-tuesday), and the group B, with 29 students, had non-consecutive sessions (tuesday-friday). Hamstring extensibility was evaluated with the sit-and-reach test before (pre-test) and after (post-test) the intervention program. RESULTS AND DISCUSSION: there was found a significant increase in the sit-and-reach score in the group A (+2,15 cm) (p = 0.003) and in the group B (+2,31 cm) (p < 0.001). No significant differences were found between groups in the pre-test and the post-test (p > 0.05). CONCLUSIONS: the implementation of an intervention program for five weeks, twice sessions a week, induded increases on hamstring extensibility in students. The class session weekly distribution does not affect the results. Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.