Power output using two load schemes for jump squat in young rowers.

Area of Science:

• Sports Science
• Biomechanics
• Exercise Physiology

Background:

• Competitive rowing performance is significantly influenced by muscular strength and power, particularly in 500m and 2,000m events.
• Optimizing training strategies is crucial for maximizing rower potential.

Purpose of the Study:

• To compare the strength and power output of young rowers during the Jump Squat (JS) exercise.
• To evaluate two distinct load parameterization schemes: 40% of body mass (BM) and 40% of one repetition maximum (1RM).

Main Methods:

• Young rowers performed the Jump Squat (JS) exercise with maximal effort for five repetitions.
• Loads were set at either 40% of body mass (BM) or 40% of one repetition maximum (1RM).
• Multivariate analysis of variance (MANOVA) was employed for inferential analysis with a 5% significance level.

Main Results:

• The 40% 1RM load condition yielded significantly higher peak and mean force outputs compared to the 40% BM condition.
• Peak power (absolute and relative) and mean power (absolute and relative) were significantly greater when using the 40% 1RM load.
• While 40% BM loads showed greater amplitude and speed, 40% 1RM loads demonstrated superior force and power generation.

Conclusions:

• Training with loads relative to 1RM optimizes strength and power output in the Jump Squat for young rowers.
• To enhance the force aspect of the force-velocity curve, employing 40% 1RM loads in JS training is recommended.