Exercise intensity and energy expenditure during a mini-trampoline rebounding exercise session in overweight women = Quantification de l'intensité de l'exercice et de la dépense énergétique pendant une session de minitrampoline chez des femmes en surpoids

Objectives The purpose of this study was to estimate the exercise intensity and energy expenditure during a mini-trampoline rebounding training session in a group of overweight women to assess whether such fitness activity meets the guidelines for exercise prescription in adults of the American College of Sports Medicine (ACSM) and whether it can be recommended for an overweight female population. Equipment and methods To achieve the aims of our study, eighteen overweight women (36.7 ± 10.6 years, BMI: 26.8 ± 1.6 kg/m2), were enrolled. All the participants underwent a maximal cardiopulmonary exercise test and the main physiological variables were recorded. Afterwards, the subjects performed a mini-trampoline rebounding exercise session where exercise intensity and energy expenditure were measured with a heart rate monitor, a rating perceived exertion scale and a portable armband device, respectively. Successively, the physiological responses obtained from these two activities were compared. Results The average heart rate throughout the mini-trampoline exercise session, lasting 46.1 ± 5.0 min, was 132.3 ± 7.7 bpm, corresponding to 72.2 ± 3.3% of that obtained in the preliminary maximal test. The estimated energy expenditure of participants to mini-trampoline rebounding exercise session was 6.9 ± 0.8 kcal/min, corresponding to a total of 317.3 ± 45.7 kcal for the duration of the entire session. Conclusions Our results showed that mini-trampoline rebounding exercise is a vigorous physical activity, which can be identified as an effective way to achieve an optimal level of training, as indicated by the ACSM guidelines.