A Novel Cutting Technique and Resistance Training Intervention to Improve Movement Patterns in Youth Female Handball Players

OBJECTIVE: To assess whether a 9-week intervention combining cutting technique retraining and hip/calf resistance exercises will reduce knee abduction moment KAM in young female handball players. STUDY DESIGN: Controlled Laboratory Study. METHODS: Forty female players (age 15–18) were assigned to an intervention group (IG; n = 20) or control group (CG; n = 20). KAM during sidestep cutting and isometric strength were assessed pre- and post-intervention. The IG completed a twice-weekly program integrated into team practice. RESULTS: Group × time interaction was not significant for KAM (p = 0.366) or foot strike angle (FSA; p = 0.171). Both groups reduced KAM (p = 0.002; IG: 0.68 ± 0.16 to 0.59 ± 0.21 Nm/kg·m; CG: 0.68 ± 0.31 to 0.53 ± 0.22) and increased FSA (p = 0.040). Knee valgus angle showed no significant interaction (p = 0.462) or main effects (p = 0.148, p = 0.080). There was no interaction for hip external rotation, hip abduction, or ankle plantarflexion strength (p ≥ 0.05). Hip abduction strength increased over time (p = 0.046) without group differences. CONCLUSION: The intervention did not significantly improve KAM or strength versus standard training, though trends suggest possible effects on cutting mechanics.