Alves Ragami C, Enes Alysson, Follador Lúcio, Prestes Jonato, DA Silva Sérgio Gregório
Sport and Exercise Research Group (FISIOEX), Department of Physical Education, Federal University of Paraná (UFPR), Curitiba, PR, BRAZIL.
Metabolism, Nutrition and Resistance Training Research Group (GPMENUTF), Department of Physical Education, Federal University of Paraná (UFPR), Curitiba, PR, BRAZIL.
Int J Exerc Sci. 2022 Feb 1;15(4):373-385. doi: 10.70252/HJJD8645. eCollection 2022.
Obesity induces several disorders, such as android obesity, insulin resistance, and coronary/peripheral artery disease, and obese individuals commonly have low adherence to training programs. Exercise at self-selected intensity is a feasible strategy to avoid dropouts of training routines. We aimed to assess the effects of different training programs at self-selected intensity on body composition, ratings of perceived exertion (RPE), feelings of pleasure and displeasure (FPD) and fitness outcomes (maximum oxygen uptake (VO2max) and maximum dynamic strength (1RM)) in obese women. Forty obese women ( = 40; Body Mass Index: 33.2 ± 1.1 kg.m) were randomly allocated to combined training (CT = 10), aerobic training (AT = 10), resistance training (RT = 10) and control group (CG = 10). The frequency that CT, AT and RT performed the training sessions was 3 times per week during 8 weeks. Body composition (DXA), VO2max and 1RM were assessed at baseline and after intervention. All participants were on a restricted dietary intake aiming to ingest 2.650 kcal per day. Post hoc comparisons revealed that CT promotes a larger decrease in body fat percentage ( = 0.001), body fat mass ( = 0.004) than other groups. CT and AT elicited higher VO2max increases ( = 0.014) than RT and CG, and 1RM values were higher in CT and RT ( = 0.001) than AT and CG at post-intervention. All training groups presented low RPE and high FPD over the training sessions, but only the CT was effective to reduce body fat percentage and body fat mass in obese women. In addition, CT was effective to increase simultaneously maximum oxygen uptake and maximum dynamic strength in obese women.
肥胖会引发多种疾病,如腹型肥胖、胰岛素抵抗以及冠状动脉/外周动脉疾病,而且肥胖个体通常对训练计划的依从性较低。以自我选择的强度进行锻炼是避免训练中断的一种可行策略。我们旨在评估不同的自我选择强度训练计划对肥胖女性身体成分、主观用力感觉(RPE)、愉悦和不愉悦感(FPD)以及体能指标(最大摄氧量(VO2max)和最大动态力量(1RM))的影响。40名肥胖女性(n = 40;体重指数:33.2±1.1 kg·m²)被随机分为联合训练组(CT = 10)、有氧训练组(AT = 10)、阻力训练组(RT = 10)和对照组(CG = 10)。CT组、AT组和RT组进行训练课程的频率为每周3次,共8周。在基线和干预后评估身体成分(双能X线吸收法)、VO2max和1RM。所有参与者都限制饮食摄入,目标是每天摄入2650千卡。事后比较显示,与其他组相比,CT组能使体脂百分比(P = 0.001)和体脂量(P = 0.004)有更大幅度的降低。与RT组和CG组相比,CT组和AT组能使VO2max有更高的提升(P = 0.014),干预后CT组和RT组的1RM值高于AT组和CG组(P = 0.001)。在训练过程中,所有训练组的RPE都较低,FPD都较高,但只有CT组能有效降低肥胖女性的体脂百分比和体脂量。此外,CT组能有效同时提高肥胖女性的最大摄氧量和最大动态力量。