Author(s): LIU, Z., YANG, T., GUO, J., Institution: REFERENCE KNOWLEDGE: AI POLISHING, AI TRANSLATION, TRANSLATION, , Country: CHINA, Abstract-ID: 2656

INTRODUCTION:
Through examining the influence of post-activation potentiation (PAP) effects, elicited by bench press training with varying load weights, on shot put performance across distinct time intervals, this study endeavors to ascertain the most effective training protocol. Concurrently, it introduces an innovative training approach for coaches and athletes engaged in shot put training, aimed at enhancing the efficacy and scientific basis for improving athletes' upper limb explosive strength and athletic prowess, thereby facilitating a more rapid enhancement in their performance outcomes.
METHODS:
This study employed experimental methods and mathematical statistics. Twenty-four male senior high school sports students, with an average age of 17.1±0.8 years and an average height of 1.85±0.05 meters, were selected for the experiment. Before the experiment, the one-repitition maximum (1RM) weight of each subject was recorded. Based on their original shot put scores (standing support throw), they were divided into three groups with eight subjects in each group: Experimental Group A (70% 1RM), Experimental Group B (90% 1RM), and Control Group C (no resistance bench press exercise). A total of four intervention tests were conducted on the three groups of subjects, with two exercises per group and three groups in total. The interval between groups was 1 minute. The resistance bench press weights of 70% 1RM, 90% 1RM, and no resistance bench press exercise were used, respectively. Two shot put tests were conducted at 4 minutes, 8 minutes, and 12 minutes after the intervention as post-test data. Two-factor repeated measures analysis of variance was used to examine the changes in shot put scores induced by post-activation potentiation (PAP) at different recovery time points, and to compare the effects of different load intervention methods on shot put scores at the same time point.
RESULTS:
1.In experimental group A, the shot put performance after induction demonstrated significant differences compared to the baseline values at 4min, 8min, and 12min (P<0.05), with the maximum increase occurring at 12min after induction. 2. In experimental group B, the shot put performance after induction also exhibited significant differences compared to the baseline values at 4min, 8min, and 12min (P<0.05), with the maximum increase occurring at 8min after induction. 3. The control group C, which did not undergo induction activation or intervention, showed no significant differences in shot put performance compared to the baseline values at 4min, 8min, and 12min (P>0.05).
CONCLUSION:
After resistance bench press interventions in both Experimental Group A and B, pap was induced. Group B showed superior performance improvement post-induction compared to Group A. Specifically, the optimal performance increase in Group B occurred around the 8th minute, while Group A's activation lagged at around the 12th minute. Continuous high-intensity stimulation significantly enhances reinforcement effects.