2026-05-28T17:43:50Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/401382026-02-03T11:17:49Zcom_10630_2254col_10630_37953

Physical Education-Based Stretching During Warm-Up, Cool-Down, or Both on Back-Saver Sit-and-Reach Scores in Schoolchildren Merino-Marban, Rafael López-Fernández, Iván Mayorga-Vega, Daniel Músculos - Flexibilidad Educación física para niños Niños Objectives: The aim of this study was to compare the effects of eight-week hamstring stretching programs, implemented at different times during physical education classes (i.e., warm-up, cool-down, and both periods), on primary schoolchildren’s back-saver sitand-reach scores. Methods: A total of 275 schoolchildren (141 females and 134 males; age 8.82 ± 1.63 years) were divided into four groups: the WUG performed stretching during warm-up, the CDG during cool-down, and the MXG during both. The NSG followed the standard classes of physical education without any stretching. During physical education classes WUG, CDG, and MXG performed a 4 min stretching program twice a week. Hamstring extensibility was assessed before and after the program using the back-saver sit-and-reach test. Results: The CDG is the one that achieved statistically significant improvements compared with the WUG, MXG, and NSG (p ≤ 0.01; d = 0.50–0.71). Moreover, the CDG statistically increased the percentage of schoolchildren achieving healthy hamstring extensibility from pre-intervention (49%) to post-intervention (66%). Conclusions: This knowledge could guide teachers to design programs that guarantee feasible and effective development of hamstring extensibility in the physical education setting. 2025-10-08T11:33:17Z 2025-10-08T11:33:17Z 2025-10-08T11:33:17Z 2025-10-02 journal article Merino-Marban, R.; López-Fernandez, I.; Mayorga-Vega, D. Physical Education-Based Stretching During Warm-Up, Cool-Down, or Both on Back-Saver Sit-and-Reach Scores in Schoolchildren. J. Funct. Morphol. Kinesiol. 2025, 10, 383. https://doi.org/10.3390/ jfmk10040383 https://hdl.handle.net/10630/40138 10.3390/jfmk10040383 eng DataSet. Datos BSSR en primaria. Autores: Merino-Marban, R.; Mayorga-Vega, D. y Lopez-Fernandez, I. https://hdl.handle.net/10630/38319 http://creativecommons.org/licenses/by/4.0/ open access Attribution 4.0 Internacional MDPI