Bohajar-Lax Álvaro, Vaquero-Cristóbal Raquel, Espejo-Antúnez Luis, López-Miñarro Pedro Ángel
Facultad de Educación. Universidad de Murcia..
Cátedra de Traumatología del Deporte. Universidad Católica de Murcia, Murcia..
Nutr Hosp. 2015 Sep 1;32(3):1241-5. doi: 10.3305/nh.2015.32.3.9308.
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).
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.
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).
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.
每周隔天进行两次腘绳肌拉伸练习的学生，其伸展性有显著提高。目的：比较在体育课中实施的腘绳肌拉伸计划对两组青少年的影响，这两组青少年的课程安排周分布不同（非连续课程与连续课程）。
58名青少年学生在为期五周的每周两次体育课的热身环节中进行腘绳肌的静态主动拉伸计划。拉伸总时长为五分钟。学生被分为两组：A组有30名学生，课程为连续安排（周一至周二），B组有29名学生，课程为非连续安排（周二至周五）。在干预计划前后，通过坐位体前屈测试评估腘绳肌伸展性。
A组坐位体前屈得分显著提高（+2.15厘米）（p = 0.003），B组也显著提高（+2.31厘米）（p < 0.001）。在测试前和测试后，两组之间未发现显著差异（p > 0.05）。
实施为期五周、每周两次课程的干预计划，可提高学生的腘绳肌伸展性。课程的周分布不影响结果。
