Abstract:

Introduction: The push-up exercise, practiced in many sports and training programs, has a variety of techniques and forms of execution, involving a greater risk of joint injuries. Objective: to compare the execution of the push-up exercise between men and women CrossFit practitioners and to analyze the movement patterns that are harmful to the glenohumeral and elbow joints. Materials and methods: Seven advanced practitioners in the sport were selected, who performed three repetitions of the push-up exercise. The movements were filmed to collect the angles of the glenohumeral and the elbow joints in the initial, middle and final phases of the movement. The kinematic analysis was performed with the Kinovea® software. Results: A significant decrease in the angle of the glenohumeral joint was identified in females, while in males the angle suffered a slight increase. Men took a wider position of the hands and elbows compared to women. Conclusion: The greater activity of the triceps brachii in women would lead to a preference for the narrow position of the hands, prioritizing greater flexion of the elbows compared to men, with greater activation in the pectoralis major and muscle strength in the adduction of the shoulders. The elevated position of the shoulders, observed in men, causes a risk of impact on the shoulder, justifying the adoption of the closed position or with the elbows closer to the trunk in CrossFit.

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