The purpose of this study was to clarify the number of types and frequencies of fundamental movement patterns (FMP) during Soccer Kids Program (SKP) recommended by the Japan Football Association for preschool children, and to clarify the relationship between FMP and Moderate to Vigorous Physical Activity (MVPA; ≥3 METs). The participants were 12 children (six boys and six girls). The SKP was conducted for 50 minutes with video recording, and researchers counted the number of FMP during SKP by replaying the video. The FMP during SKP was classified into three movement categories: stability (eight types), locomotion (eight types), and manipulation (18 types). The participants wore a triaxial accelerometer (Active Style Pro, OMRON) on their waist during SKP and measured their activity (intensity and step) every ten seconds. Partial correlation analysis was performed on the relationship between MVPA and FMP using age in months and gender as covariates. MVPA during SKP was 24.3±5.0 minutes (48.7%), which was considerably more than in previous studies. Total number of FMP during SKP was 637.8±183.5 (stability: 27.8±12.4, locomotion: 399.7±156.6, manipulation: 210.3±48.4) and the mean number of types of FMP was 14.6±2.0 types. The FMP was confirmed in all three categories. There were significant correlations between MVPA and the total FMP (r = 0.72), the number of stability (r = 0.83), and the types of FMP (r = 0.69). This study suggested that an association between MVPA and FMP (total FMP, total stability, and type of FMP) in SKP.

This study aimed to determine the differences in the shot performance of badminton players of different skill levels. The participants included 10 male college and 10 unskilled badminton players. Each participant was asked to perform backhand drives with varying degrees of effort while seated to avoid any influence of footwork. Each participant completed 50 trials. In each trial, shot performance was evaluated using a three-dimensional motion capture system along with video data. Additionally, shot accuracy, shuttle velocity, impact position, and shuttle launch angle were assessed. Skilled players had more accurate shots with higher shuttle velocities than the unskilled players. Notably, shuttle velocity increased with the subjective effort level in both types of players. Variability of the impact position was also examined in all trials, and no inter-skill level differences were noted. Moreover, shuttle launch angles were calculated in the left-right and vertical directions. No differences were observed between the skilled and unskilled players in the left-right direction. In the vertical direction, unskilled players hit more upward than skilled players; however, no differences were noted in their effort levels. These results suggest that skilled players adjust the shuttle velocity and vertical launch angle with varying degrees of effort to hit accurate shots. In contrast, unskilled players struggle to adjust vertical launch angle, resulting in inaccurate shots.