» Articles » PMID: 35250339

Sex Moderates the Relationship Between Perceptual-Motor Function and Single-Leg Squatting Mechanics

Overview
Specialty Orthopedics
Date 2022 Mar 7
PMID 35250339
Authors
Affiliations
Soon will be listed here.
Abstract

To examine the isolated and combined effects of sex and perceptual-motor function on single-leg squatting mechanics in males and females. We employed a cross-sectional design in a research laboratory. Fifty-eight females (22.2 ± 3.5 yrs, 1.60 ± .07 m, 64.1 ± 13.0 kg) and 35 males (23.5 ± 5.0 yrs, 1.80 ± .06m, 84.7 ± 15.3 kg) free from time-loss injury in the six months prior, vertigo, and vestibular conditions participated in this study. Independent variables were sex, perceptual-motor metrics (reaction time, efficiency index, conflict discrepancy), and interaction effects. Dependent variables were peak frontal plane angles of knee projection, ipsilateral trunk flexion, and contralateral pelvic drop during single-leg squatting. After accounting for the sex-specific variance and perceptual-motor function effects on frontal plane squatting kinematics, female sex amplified the associations of: higher reaction time, lower efficiency index, and higher conflict discrepancy with greater right ipsilateral peak trunk lean (R = .13; p = .05); higher reaction time, lower efficiency index, and higher conflict discrepancy with decreased right contralateral pelvic drop (R = .22; p < .001); higher reaction time and lower conflict discrepancy with greater right frontal plane knee projection angle (R = .12; p = .03); and higher reaction time with greater left frontal plane knee projection angle (R = .22; p < .001). Female sex amplified the relationship between perceptual-motor function and two-dimensional frontal plane squatting kinematics. Future work should determine the extent to which perceptual-motor improvements translate to safer movement strategies.

References
1.
Pontifex M, OConnor P, Broglio S, Hillman C . The association between mild traumatic brain injury history and cognitive control. Neuropsychologia. 2009; 47(14):3210-6. DOI: 10.1016/j.neuropsychologia.2009.07.021. View

2.
Petrovic M, Sigurdsson H, Sigurdsson H, Sveinsson T, Briem K . Effect of Sex on Anterior Cruciate Ligament Injury-Related Biomechanics During the Cutting Maneuver in Preadolescent Athletes. Orthop J Sports Med. 2020; 8(7):2325967120936980. PMC: 7378718. DOI: 10.1177/2325967120936980. View

3.
Wilkerson G, Simpson K, Clark R . Assessment and Training of Visuomotor Reaction Time for Football Injury Prevention. J Sport Rehabil. 2016; 26(1):26-34. DOI: 10.1123/jsr.2015-0068. View

4.
Hewett T, Myer G . The mechanistic connection between the trunk, hip, knee, and anterior cruciate ligament injury. Exerc Sport Sci Rev. 2011; 39(4):161-6. PMC: 4168968. DOI: 10.1097/JES.0b013e3182297439. View

5.
Bram J, Magee L, Mehta N, Patel N, Ganley T . Anterior Cruciate Ligament Injury Incidence in Adolescent Athletes: A Systematic Review and Meta-analysis. Am J Sports Med. 2020; 49(7):1962-1972. DOI: 10.1177/0363546520959619. View