Introduction:

Few studies are currently available relating lower limb muscle mass and vertical jump.

Objective:

Describe the association between lower limb muscle mass and vertical jump in subjects who practice weight training.

Method:

A quantitative correlational-exploratory study was conducted of a convenience sample of ten men (age 17.40 ± 2.32 years, height 172.10 ± 5.76 cm and body weight 79.13 ± 19.54 kg) who practice weight training. Participation was voluntary. Lower limb muscle mass was estimated with a validated equation, and countermovement jump (CMJ) and squat jump (SJ) were considered. Statistical analysis was based on the software PSPP for Windows 7 to apply the Shapiro-Wilk normality test and Pearson's correlational coefficient.

Results:

The data obtained displayed a normal distribution (p > 0.05), with lower limb muscle mass exhibiting a negative significant relationship to countermovement jump (CMJ) (r = -0.73; p = 0.02) and squat jump (SJ) (r = -0.73; p = 0.02).

Conclusion:

Lower limb muscle mass is not a good predictor of vertical jump performance.

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