Biomechanical Analysis of the Anterior Lunge During 4 External-Load Conditions

Context: Comprehensive analysis of ankle, knee, and hip kinematics and kinetics during anterior lunge performance in young adults has not been studied. In addition, the effects of adding external resistance on the kinematics and kinetics are unknown. Objective: To determine the effects of external load on ankle, knee, and hip joint kinematics and kinetics during the anterior lunge. Design: Crossover study. Setting: Laboratory environment. Patients or Other Participants: A total of 16 recreationally active, college-aged adults (8 men, 8 women). Intervention(s): Anterior lunges under 4 external-load conditions, 0% (control), 12.5%, 25%, and 50% of body mass. Main Outcome Measure(s): Ankle, knee, and hip peak flexion, net joint extensor moment impulse, and eccentric and concentric work were computed during the interval when the stepping limb was in contact with the ground. Additionally, 3 summary lunge characteristics were calculated. Results: No significant (P > .05) load effects were noted for peak flexion...