How do students’ hamstring extensibility levels change through an academic year? A longitudinal study

  • Carlos A. Becerra-Fernández IES Sagrado Corazón, Málaga, (España)
  • Daniel Mayorga-Vega Departamento de Educación Física y Deportiva, Universidad de Granada, (España)
  • Rafael Merino-Marban Facultad de Ciencias de la Educación, Universidad de Málaga (UMA), (España)

Resumen

The main purpose of the present study was to examine the students’ hamstring extensibility levels through an academic year. A sample of 128 11th-grade students from a high school center was assessed by the classic sit-and-reach test in pre-, mid- and post-academic year. The results showed that students’ hamstring extensibility level statistically significantly decreased from pre-academic year (22.1 ± 8.5 cm) to mid- (19.9 ± 8.6 cm; d = -0.26) and post-academic year (18.6 ± 9.3 cm; d = -0.41) (p < 0.001) and from mid-academic year to post-academic year (d = -0.16) (p < 0.001). The results of the McNemar’s test indicated that there was a statistically significant decrease on the proportion of students with normal hamstring extensibility level from pre-academic year to post-academic year (p < 0.05). In conclusion, high-school students lost hamstring extensibility levels during an academic year. As a result of this decrease, the number of students with hamstring extensibility shortening increased by 10.9%. Physical education teachers should implement stretching programs for preventing students’ hamstring extensibility shortening.

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Publicado
2017-12-29
Cómo citar
Becerra-Fernández, C., Mayorga-Vega, D., & Merino-Marban, R. (2017). How do students’ hamstring extensibility levels change through an academic year? A longitudinal study. Educación Física Y Ciencia, 19(2), e029. https://doi.org/10.24215/23142561e029
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