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EN
The purpose of this study was to examine the effect of the kinesio tape immediately after its application and after a duathlon competition on calf pain and the ankle range of motion in duathletes. A sample of 28 duathletes (age 29.11 ± 10.35 years; body height 172.57 ± 6.17 cm; body mass 66.63 ± 9.01 kg; body mass index 22.29 ± 2.00 kg/m2) were recruited from the competitors in a duathlon sprint. The Numerical Pain Rating Scale and ankle dorsiflexion range of motion measures were obtained at baseline, immediately after taping and 10 to 15 minutes after ending the duathlon competition. The kinesio tape was applied on the calf of duathletes 20 to 90 minutes before the competition, only on one of their legs (experimental leg) with the other leg acting as a control (control leg) in a randomized order. According to the between-group comparison, no differences were found immediately after the application of the kinesio tape and after the competition in the ankle range of motion and calf pain. However, a significant difference from baseline to immediately after taping was found in the ankle range of motion in the experimental leg. Applying the kinesio tape on the calf seems to immediately increase ankle dorsiflexion range of motion, but not after a duathlon competition. Applying the kinesio tape on the calf does not reduce muscle pain immediately or after a duathlon competition, but it appears to control an increase in pain.
EN
The purpose of this study was to compare the effects of a physical education-based stretching program performed during warm-up and cool-down periods on hamstring extensibility in schoolchildren aged 9- 10 years. A sample of 73 schoolchildren, 36 boys and 37 girls, aged 9-10 years old from three classes were clustered randomly assigned to a no-training group (n = 24), warm-up group (n = 25), or cooldown group (n = 24). During physical education classes, the students of the warm-up and cool-down groups performed a four-minute stretching program twice a week for ten weeks during the warm-up and the cool-down periods, respectively. Hamstring extensibility was estimated by the classic sit-and-reach test at the beginning and at the end of the stretching intervention program. The results of the ANOVA showed that both the warm-up and cool-down students had statistically significant higher values on the hamstring extensibility than the no-training students (p < 0.05). The warm-up and cool-down groups did not show statistically significant differences. Nevertheless, the cool-down students obtained a slightly higher magnitude effect when compared with the warm-up group (g = 0.67 and g = 0.56, respectively). In addition to the slight higher improvement during the cool-down, due to the negative effect of static stretching on performance as previously found in the literature, it seems that physical education teachers should improve students´ flexibility during the cool-down period of the sessions.
EN
The purpose of this study was to examine the influence of sex on the acute effect of static-passive one-session stretching on V sit-and-reach scores in university students. A sample of 76 college students aged 19-30 years were divided into a women group (n = 36) and men group (n = 40). During one session the students performed stretching exercises for the major body muscles using the static-passive technique. Hamstring and lower back muscles extensibility was estimated by the V-sit-and-reach test at the beginning and at the end of the stretching session. The results of the two-way ANOVA with the Bonferroni adjustment showed that females and males did not show a different response to the one-session stretching intervention (p > 0.05). However, both the women and men increased statistically their scores after performing the stretching session (p < 0.001). In conclusion, no differences have been found in the trainability of flexibility by sex. However, there are differences of flexibility by the sex of students, being the females, who obtained the highest marks in the V-sit-and-reach. All this knowledge could help coaches to design more effectives stretching programs.
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