Abstract
(1) Background: Body Jump® is a novel group fitness program with musical support, which is performed rebounding in a minitrampoline. Although the number of practitioners has increased exponentially in recent years, this activity’s short-term effects on physical fitness and body composition in women have not yet been studied. (2) Methods: 27 healthy young women were randomly divided into a Body Jump® group (BJ) and a control group (CG). BJ performed three classes per week for one month. The week before and after the intervention, the anthropometric assessments were carried out to estimate the body composition, and different performance tests were performed to assess the jumping capacity (countermovement jump (CMJ) and squat jump (SJ) tests), the muscular strength (1RM test) and the aerobic fitness (UKK test). (3) Results: VO2 max (p = 0.001), CMJ flight height (p = 0.023), SJ flight height (p = 0.003) and the 1RM value in the half-squat exercise (p = 0.009) were significantly increased in BJ. In CG, there were no statistically significant differences after the intervention period. Regarding the changes in body composition, a significant enhancement in several parameters were found in BJ, such as the sum of skinfolds (p = 0.003) and the percentage of fat mass (p = 0.002), while no changes were found in any of the anthropometric variables in CG. (4) Conclusions: carrying out the Body Jump® program three days per week for one month had positive effects on physical fitness and body composition in a group of healthy young women. This training program can be an effective option for enhancing, in the short term, these fitness parameters and the body composition of these recreational users into the fitness centers.
Highlights
There has been an exponential increase in the fitness industry during the last decade [1].The emergence of low-cost gyms and the greater social awareness about the benefits of the regular practice of physical activity and sport to improve the quality of life and health could be some of the reasons for this expansion [2,3]
(2) Methods: 27 healthy young women were randomly divided into a Body Jump® group (BJ) and a control group (CG)
Regarding the changes in body composition, a significant enhancement in several parameters were found in BJ, such as the sum of skinfolds (p = 0.003) and the percentage of fat mass (p = 0.002), while no changes were found in any of the anthropometric variables in CG. (4) Conclusions: carrying out the Body Jump® program three days per week for one month had positive effects on physical fitness and body composition in a group of healthy young women
Summary
The emergence of low-cost gyms and the greater social awareness about the benefits of the regular practice of physical activity and sport to improve the quality of life and health could be some of the reasons for this expansion [2,3] This growth has been affected by the current COVID-19 crisis, the global gym market generated 84,000 million euros in 2018. The female gender has greater participation in most of these physical group activities [6] Following this trend, international franchises, such as Les Mills® or FITCONCEPTPRO®, are designing new group fitness programs under musical support every three months. Later, certified instructors reproduce these programs in their respective fitness centers Some examples of these well-known activities are Body Pump®, Body Combat® or Body Balance® by LES MILLS® and PYRO® or Body Jump® by FITCONCEPTPRO®
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