Kinematics and Kinetics of 2 Styles of Partial Forward Lunge
Objective: To evaluate the anterior shift of the body's center of gravity (CG) and the associated inertial forces produced by 2 styles of a partial forward lunge.
Setting: Gait-analysis laboratory of a research institution.
Participants: 10 healthy volunteers.
Intervention: 3 trials of each lunge.
Main Outcome Measures: Kinematic data were collected, and inertial reaction forces were resolved into net compressive and shear forces using an inverse dynamic model.
Results: Significantly (P < .001) greater anterior translation of the CG was found with an arms-in-front v arms-across-chest lunge style. No significant differences were found between the average peak inertial compressive and shear forces of the 2 styles (427 ± 184 N v 426 ± 187 N, -536 ± 113 N v -538 ± 127 N).
Conclusion: Anterior translation of the CG was larger with the arms-forward partial-lunge position, creating increased balance demands. Both styles produced clinically safe (posteriorly directed) inertial shear forces, with greater anterior CG shift with the arms-forward style.
Wilson, Daniel J., Kyle Gibson, and Gerald L. Masterson. "Kinematics and kinetics of 2 styles of partial forward lunge." Journal of sport rehabilitation 17, no. 4 (2008): 387-398.
DOI for the article