Effect of multiple-load training on the force-velocity relationship.

Area of Science:

• Sports Science
• Exercise Physiology
• Biomechanics

Background:

• Understanding the impact of varied resistance training on neuromuscular adaptations is crucial for optimizing athletic performance.
• Multiple-load training, combining different intensity levels, offers a novel approach to muscle conditioning.

Purpose of the Study:

• To investigate the effects of multiple-load training programs on the force-velocity and force-power relationships of elbow flexor muscles.
• To compare the efficacy of different multiple-load training protocols in enhancing muscle strength and power.

Main Methods:

• Twenty-one male college students participated in an 8-week, 3-day/week training program.
• Three groups underwent distinct multiple-load training protocols using percentages of maximal isometric strength (Fmax).
• Training loads included combinations of 30%, 60%, and 100% Fmax with varying repetition schemes.

Main Results:

• All training groups demonstrated significant increases in maximal isometric strength (Fmax) and maximal velocity (p < 0.05).
• The group training with 30%, 60%, and 100% Fmax (G(30 + 60 + 100)) showed a significantly greater increase in maximal power (52.9%) compared to the group using 30% and 100% Fmax (G(30 + 100), 24.2%).

Conclusions:

• Multiple-load training programs, particularly those utilizing 4-6 repetitions across varied intensities, are effective for enhancing elbow flexor muscle power and velocity.
• The inclusion of higher intensity loads (up to 100% Fmax) within a multiple-load scheme appears to be more beneficial for power development.