•  
  •  
 

THE RELATIONSHIP BETWEEN HIP AND KNEE ANGLES AND THE JUMP FORCE PRODUCED

Abstract

In the world of sports and human movement, not many aspects capture our fascination as much as the power and explosive force generated by athletes during dynamic actions like jumping, sprinting, and cutting maneuvers. While several factors influence force generation, the relationship between hip and knee angles and generating force is gaining attention today. This research study investigated if a hip and knee angle of 100° was optimal to generate maximum force during various physical activities and exercises. Understanding the ideal knee joint position that yields the highest force output is crucial for improving performance in sports, rehabilitation, and overall health. Seventeen collegiate baseball players participated in this study. The participants performed three countermovement jumps at their desired angles. The results were recorded using a force plate, and the hip and knee angles were recorded using a goniometer while the athlete was stationary in their preferred jump position. Statistical analysis included a Pearson r-test to calculate a correlation between the knee angles and the force produced and regression analysis to show the strength and significance of the relationship between knee angles and force produced. A Pearson’s R test was conducted to indicate if a correlation exists between hip joint angle (p = .17, r = .36) and knee joint angle (p =.29, r = .29) with the jump force produced. No statistical significance or strong correlation was found. The hip angle that produced the most force (on average of the 3 jumps) was 90°. The knee angle that produced the most force (on average of the 3 jumps) was 116°. Therefore, the hypothesis that an approximate hip and knee angle of 100° will produce the maximum force was rejected. These results indicate athletes should participate in form-specific training to gain increased force production, optimizing a smaller hip-over-knee angle ratio.

This document is currently not available here.

Share

COinS