Adaptations to strength training differ between endurance-trained and untrained women

Purpose The purpose of this study was to investigate if endurance athletes, sustaining their normal endurance training, experience attenuated adaptations to strength training compared to untrained individuals. Methods Eleven non-strength-trained female endurance athletes ( E + S ) added 11 weeks of strength training to their normal endurance training (5.1 ± 1.1 h per week), and 10 untrained women ( S ) performed the same strength training without any endurance training. The strength training consisted of four leg exercises [3 × 4 − 10 repetition maximum (RM)], performed twice a week for 11 weeks. Results E + S and S displayed similar increases in 1RM one-legged leg press ( E + S 39 ± 19%, S 42 ± 17%, p