![]() The ACFT scores in the total of three upper extremity components (standing power throw, T-pushups, and hanging leg tucks) while not statistically significant were lower in the participants with scapular dyskinesis (right = 190.60 ± 36.3 left = 182.50 ± 36.4) than in those with normal scapular kinematics (right = 237.33 ± 61.4 left = 235.29 ± 56.4).Ĭonclusions and Practical Relevance: Repeated shoulder motion caused an increase in the amount of scapular dyskinesis in Army ROTC Cadets. No significant strength differences were found on the right side. Participants graded with scapular dyskinesis on the left side following the fatigue protocol demonstrated lower muscle strength for the external rotation (p = 0.029), internal rotation (p = 0.026), abduction (p = 0.021), serratus anterior (p = 0.37), lower trapezius (p = 0.24), and middle trapezius (p = 0.028). Following the fatigue protocol seven out of fourteen (p = 0.008) Cadets were categorized with right side scapular dyskinesis and five out of fourteen (p = 0.008) were categorized with left side scapular dyskinesis. Results: Prior to the fatigue protocol two out of fourteen were categorized with scapular dyskinesis on the right and left sides. During the school year the Cadets were then tested on the Army Combat Fitness Test during their PT sessions with ROTC. The scapular dyskinesis test was performed prior to and during the last five repetitions of the fatiguing protocol. Shoulder musculature strength measurements were recorded prior to and immediately after the fatigue protocol using a handheld dynamometry. Cadets performed 30 repetitions of weighted shoulder motion in the frontal plane. Participants completed patient-reported outcome forms prior to testing. ![]() Methods: Fourteen Army ROTC cadets (172.6 ± 10 cm, 77.1 ± 11.7 Kg, 5 females, 9 males) participated in the research study. The hypothesis was that ROTC cadets with scapular dyskinesis will score lower on the standing power throw, two minutes T-pushups, and the hanging leg tucks. Purpose: The purpose of this study was to explore the relationship between scapular dyskinesis and ROTC Cadets scores on three exercises of the ACFT (leg tuck, power throw, and T-pushups). Alterations to normal scapular kinematics have been connected to shoulder pain/injuries. 1 Fatigue of the shoulder and scapular musculature has been reported to lead to alterations in scapular kinematics. Recently, the US Army changed their physical fitness test to the Army Combat Fitness Test (ACFT) which is a more full body, functional, and fatiguing test. Background: The increasing rate of shoulder pain and injury in the US military can cause an impact on a soldier’s ability to pass their fitness tests, affect their overall combat readiness, and lead to an increasing amount spent on medical treatment.
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