What is it about?
Fatigue affects girls more than boys when executing a drop jump, in that they demonstrate less flexion excursion and greater ground reaction forces. Furthermore, although both boys and girls demonstrate greater loading onto their right lower limb, this asymmetry in loading is evident in the sagittal plane for boys but in the frontal plane for girls.
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Why is it important?
This may render girls more vulnerable for ACL injury and has implications with respect to injury prevention strategies, even for very young athletes.
Perspectives
Even before structural differences in body build are evident, differences in movement patterns and knee joint loading strategies are found between the sexes. Prospective studies will tell us whether preventive training programs alters movement patterns and affects risk factors to lower ACL injury incidence.
Kristín Briem
University of Iceland
Read the Original
This page is a summary of: Effects of Sex and Fatigue on Biomechanical Measures During the Drop-Jump Task in Children, Orthopaedic Journal of Sports Medicine, January 2017, SAGE Publications,
DOI: 10.1177/2325967116679640.
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