Author(s): THIENES, G., GROßE SIEMER, J. , Institution: UNIVERSITY OF VECHTA, Country: GERMANY, Abstract-ID: 1299

INTRODUCTION:
The effectiveness of strength training has been proven for physical education (PE) classes. Few findings include the conditions of German schools or higher adolescence [1]. Pupils who actively participate in strength training can link it to the self-efficacy experience of being able to influence their own motor performance and change their fitness in a self-directed manner through their own effort and commitment to training. The assumption to be tested is then that the students expressed enjoyment of training opens up these positive experiences, which then indirectly contribute to the greater effects of the training. This study examines enjoyment of strength training as a possible relevant (indirect) influencing factor on the effectiveness of training.
METHODS:
Of 88 adolescents (68m/20f; M 17.5 SD 1.30 years), 54 participated in the 7-week resistance training programme. Strength training took place once a week during physical education classes, and the average training compliance was 4-5 training sessions (training group). A whole-body strength circuit of 12 exercises was implemented in the 90 minute lessons in conjunction with conversations and reflective discussions in class. Lessons in the parallel classes were not related to strength training (control group). Curl-up, back test, pull-up hang and push-up [3] and sport enjoyment scales [2] were collected.
RESULTS:
Mixed ANOVA shows a significant interaction effect in favour of the TG for the push-up (F(1.0, 85.0) = 12.79, p < .001, eta-sq = .13), the pull-up hang (F(1.0, 86.0) = 8.18, p = .004, eta-sq = .09), and the back test (F(1.0, 86.0) = 13.93, p < .001, eta-sq = .13). In addition, a significant interaction was found in favour of the group that enjoyed the training more for the push-up (F(2.0, 50.0) = 4.65, p = .014, eta-sq = .15) and the curl-up (F(2.0, 51.0) = 3.67, p = .032, eta-sq = .12).
CONCLUSION:
Evidence is supported by three out of four tests, that under conditions of PE classes in Germany training once a week has low but relevant effectiveness [4]. The study also suggests that enjoyment of strength training leads to significantly greater training effects for two of the four test procedures, with medium to large effects. It is recommended to investigate potential age-related and methodological causes, such as the time of survey.
References:
[1] Cox, A., et al. (2020). Sports Medicine, 50, 543-560.
[2] Scanlan, T.K. et al. (1993). Journal of Sport and Exercise Psychology, 15, 16-38.
[3] Thienes, G. (2008). Leipziger Sportwissenschaftliche Beitraege, 49(2), 135-145.
[4] Thienes, G. et al. (2022). In M. Wegner & J. Juergensen (Hrsg.), Sport, Mehr & Meer: Sportwissenschaft in gesellschaftlicher Verantwortung: 25. Dvs-Hochschultag, Kiel (S. 509). Feldhaus, Edition Czwalina.