In slo-pitch softball, the ball is delivered in an arc trajectory with a moderate velocity; hence, batters have time to adjust their stride technique based on the pitched ball location. The purpose of this study was to examine the influence of stride technique and pitched ball location on the mechanics of slo-pitch batting. A two-way ANOVA of two locations of pitch (inside and outside) x three strides (open, parallel, and closed) repeated measure study was conducted in this study. The results showed that the stride technique and pitched ball location did not have a consistent impact on the participants across different batting conditions, so the study recommends slo-pitch batters to explore different stride techniques when striking the ball. Further, to better understand the generalizability of the findings, the results indicated that participants were quite homogeneous as a group. Hence, coaches and educators may apply the findings from this study to other players with similar skill level.
The purpose of the study was to investigate the kinematics between the double collar-tie and double underhook Thai Boxing clinching positions. Ten amateur mixed martial arts athletes executed six knee strikes for both clinching positions with their dominant limb directed towards a target. A standard two-dimensional video motion analysis was conducted, and the results showed a statistical significant difference at the hip joint angle and the angular acceleration of the knee and ankle. Within both clinching positions, there was a statistically significant correlation between the hip and knee joint angles, hip and knee angular velocities, and hip angular acceleration. Between both clinching positions, there was a statistically significant correlation at the knee joint angle, knee angular velocity, and hip angular acceleration. This study demonstrates the importance of the hip and knee joint movements in both clinching positions, which implies the applications of strength training and flexibility at these joints for sports performance and injury prevention. It is suggested that future studies analyzing the non-dominant leg are warranted to fully understand the Thai Boxing clinch.
This study developed an interdisciplinary approach by utilizing the principles of ecological task analysis and movement coordination from areas of motor leaning and biomechanics to examine the skill of slo-pitch softball hitting. The purpose of this study was to examine the influence of a task constraint, stride technique, and an environmental constraint, pitched ball location, on the participants' movement patterns. Ten elite male softball players participated in the study and a two-way ANOVA of 2 locations of pitch (inside and outside) x 3 strides (open, parallel and closed) repeated measure study was conducted. The results showed that participants demonstrated different joint movements and different coordination patterns in slo-pitch hitting. Hence, this study supports the rationale of ecological task analysis. Further, a Euclidean distance analysis was conducted to evaluate the degree of dissimilarity between the individual and group mean results in attempt to better understand the generalizability. The results indicated that participants generally showed a low degree of dissimilarity; hence, coaches and educators may apply the findings to other players. A similar interdisciplinary approach is warranted for future research studies on other sport skills or health conditions in order to better understand the mechanics of human motion.
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