A single set of exhaustive exercise before resistance training improves muscular performance in young men
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The purpose of this study was to examine the effects of an additional set of exhaustive exercise before traditional hypertrophic training on quadriceps muscle performance in young men.
Subjects performed maximal dynamic strength (1RM), local muscular endurance (LME), and magnetic resonance imaging (MRI) tests before and after an 8-week hypertrophic training program using a knee extensor machine. After baseline testing, the subjects were divided into 3 groups: untrained control, traditional training (TR), and prior exhaustive training (PE). Both the TR and PE groups trained using the same training protocol (2 days week−1; 3 sets of 8–12 repetitions at 75 % of 1RM); the only difference was that the PE group performed an additional set of exhaustive exercise at 20 % of 1RM before each training session.
After 8 weeks, the PE group experienced a greater (P < 0.05) increase in 1RM, cross-sectional area, and LME than the TR group. Additionally, no changes (P > 0.05) in daily dietary intake were observed between groups.
These results suggest that the inclusion of a single set of exhaustive exercise at 20 % of 1RM before traditional hypertrophic training can be a suitable strategy for inducing additional beneficial effects on quadriceps strength, hypertrophy, and endurance in young men.
KeywordsResistance training Quadriceps 1RM Endurance Cross-sectional area Muscular strength
One repetition maximum
Local muscular endurance
Magnetic resonance imaging
Coefficient of variation
Surface EMG for Non-Invasive Assessment of Muscles
Root mean square
Body mass index
Conflict of interest
No conflicts of interest, financial, or otherwise, are declared by the author(s).
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