Hoff, J. (2001). Maximal strength training enhances running economy and aerobic endurance performance. Medicine and Science in Sports and Exercise, 33(5), Supplement abstract 1529.

This study determined whether maximal squat training using high loads, few repetitions, and maximal mobilization of force, improved running economy and endurance performances. Female soccer players (N = 24) were divided into a training group (exercises with a load >85% 1-RM focusing on maximal mobilization of force in the concentric contraction phase) and a control group. Soccer training continued during the training period.

Maximal strength training (mobilization emphasis) improved 1-RM by 33.7% and rate of force development by 52.3%. Running economy at anaerobic threshold improved by 4.7% while no change was observed in the control group. Other measures suggested that the adaptations to the training were neural in nature, altering recruitment patterns.

Implication. Explosive high-load resistance training improves running economy in female soccer players.

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