Power versus strength-power jump squat training: influence on the load-power relationship

Area of Science:

• Sports Science
• Exercise Physiology
• Biomechanics

Background:

• The load-power relationship is crucial for optimizing athletic performance in explosive movements.
• Understanding how different training modalities affect this relationship is essential for effective program design.

Purpose of the Study:

• To compare the effects of power training versus combined strength-power training on the load-power relationship during the jump squat.
• To determine which training approach yields superior improvements in jump squat performance across various external loads.

Main Methods:

• Twenty-six recreationally trained males were divided into power training (P), strength-power training (SP), and control groups.
• Training interventions lasted 12 weeks, with specific protocols for jump squats at optimal power loads and 90% of one-repetition maximum (1RM) for the SP group.
• Jump squat performance metrics including peak power, jump height, peak force, and peak velocity were assessed at baseline, mid-training, and post-training across a range of external loads.

Main Results:

• The strength-power training (SP) group demonstrated significant improvements in peak power output across all tested loads (body mass to 80 kg).
• The power training (P) group showed significant increases in peak power at lighter loads (body mass and 20 kg).
• Both P and SP groups improved maximal jump height and power output at body mass, with the SP group showing greater improvements across all loading conditions.

Conclusions:

• Combined strength-power training is as effective as power training for enhancing maximal jump squat power and jump height.
• Strength-power training is superior to power training alone in improving the load-power relationship across a wider spectrum of external loads in the jump squat.