This study aimed to investigate the immediate effects of neuromuscular electrical stimulation (NMES) on high-platform drop jump performance through kinematic analysis. Thirty healthy male physical education students were randomly recruited (15 in the experimental group and 15 in the control group). The experimental group received a 20-min NMES intervention before performing the drop jump test. The Kwon3D motion analysis system was used for data processing, and the drop jump process was divided into five key phases for kinematic parameter analysis. The results showed that the jump height of the experimental group was significantly higher than that of the control group (p < .05). Additionally, during the explosive rising phase, the experimental group demonstrated significantly greater center of gravity velocity, hip joint angle, and velocities of the thigh, calf, and sole compared to the control group (p < .05). The findings indicate that NMES effectively induces the post-activation potentiation (PAP) effect, enhancing lower-limb explosive power and overall athletic performance. This study provides scientific evidence for the potential application of NMES as a training strategy and recommends further exploration of its long-term effects and impact on different populations.

Introduction: This study aims to investigate the relationship between participation motivation and exercise behavior among adolescent leisure baseball enthusiasts. Methods: A questionnaire survey was used to collect data, resulting in 919 valid questionnaires, including 484 males and 435 females. Results: Results revealed significant gender differences in psychological motivation, enjoyment motivation, and exercise behavior among recreational baseball enthusiasts. Males outperformed females on all indicators, indicating a higher level of engagement and willingness to participate in baseball. Correlation analysis revealed significant positive correlations between exercise behavior and life motivation, psychological motivation, and enjoyment motivation, indicating that higher motivation levels were associated with higher frequency and persistence in actual exercise participation. Further regression analysis revealed that exercise behavior was significantly influenced by life motivation and enjoyment motivation, suggesting that viewing exercise as an important part of life and deriving pleasure and a sense of accomplishment from it can contribute to baseball participation. Conclusion: Overall, these findings suggest that motivation plays a key role in recreational baseball participation, providing valuable insights for promotional activities and sports education.