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oai:riuma.uma.es:10630/263892026-02-03T10:50:11Zcom_10630_2254col_10630_37953

Efficacy of progressive versus severe energy restriction on body composition and strength in concurrent trained women Vargas-Molina, Salvador Bonilla, Diego A. Petro, Jorge Luis Carbone, Leandro García-Sillero, Manuel Jurado‑Castro, José Manuel Schoenfeld, Brad Jon Benítez-Porres, Javier Obesidad - Tratamiento Ejercicio físico Purpose This study evaluated the concurrent training (CT) effect in combination with either progressive energy restriction (PER) or severe energy restriction (SER) on body composition and strength-related variables in resistance-trained women. Methods Fourteen women (29.5 ± 3.8 years; 23.8 ± 2.8 kg·m −2 ) were randomly assigned to a PER (n = 7) or SER (n = 7) group. Participants performed an 8-week CT program. Pre- and post-intervention measures of fat mass (FM) and fat-free mass (FFM) were assessed by dual-energy X-ray absorptiometry and strength-related variables were assessed through 1-repetition maximum (in the squat and bench press) and countermovement jump. Results Significant reductions in FM were observed in PER and SER (Δ = − 1.7 ± 0.4 kg; P = < 0.001; ES = − 0.39 and Δ = − 1.2 ± 0.6 kg; P = 0.002; ES = − 0.20, respectively). After correcting FFM for fat-free adipose tissue (FFAT), no signifi- cant differences for this variable were found either in PER (Δ = − 0.3 ± 0.1; P = 0.071; ES = − 0.06) or in SER (Δ = − 0.2 ± 0.1; P = 0.578; ES = − 0.04). There were no significant changes in the strength-related variables. No between-group differences were found in any of the variables. Conclusion A PER has similar effects to a SER on body composition and strength in resistance-trained women performing a CT program. Given that PER is more flexible and thus may enhance dietary adherence, it might be a better alternative for FM reduction compared to SER. 2023-04-24T11:34:28Z 2023-04-24T11:34:28Z 2023 journal article Vargas-Molina, Bonilla, D. A., Petro, J. L., Carbone, L., García-Sillero, M., Jurado-Castro, J. M., Schoenfeld, B. J., & Benítez-Porres, J. (2023). Efficacy of progressive versus severe energy restriction on body composition and strength in concurrent trained women. European Journal of Applied Physiology. https://doi.org/10.1007/s00421-023-05158-8 https://hdl.handle.net/10630/26389 https://doi.org/10.1007/s00421-023-05158-8 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Springer