To investigate the effects of full versus split body resistance exercise on postexercise hypotension and autonomic modulation in trained men. Sixteen resistance recreationally trained males (age, 24.9±5.3 years) performed three randomized trials: upper body (UB), lower body (LB), and full body (FB) conditions. Blood pressure and heart rate variability were collected at rest, immediately postexercise, post-10, and post-30 min during recovery. For systolic blood pressure, delta (30 min minus rest) was lower for the FB condition compared to the UB (−10.1±7.4 mmHg [FB] vs. −3.3±12.6 mmHg [LB] vs. −1.9±8.1 mmHg [UB], P=0.004). For diastolic blood pressure (−8.2±10.9 mmHg [FB] vs. −1.5±9.8 mmHg [LB] vs. −8.7±11.4 mmHg [UB], P=0.038) and mean blood pressure delta during recovery (−11.7±14 mmHg [FB] vs. −2.2±10.6 mmHg [LB] vs. −5.2±6.8 mmHg [UB], P=0.045), there were statistically significant lower values in the FB condition in relation to the LB condition. Regarding heart rate variability, there were no significant differences between conditions, however, the square root of the mean squared difference between adjacent RR intervals presented an increase until post-30 during recovery (P<0.001), and there was a higher values of low frequency and lower values of high frequency across time (P<0.001). Postexercise hypotension was influenced by the amount of muscle mass involved in a bout of resistance exercise, with the FB condition inducing lower systolic blood pressure in relation to the UB after exercise, as well as a great decrease in postexercise diastolic and mean blood pressure compared with the LB. The autonomic modulation response was similar between conditions during recovery.

(1) Background: We investigated the effects of 28 days of beta-alanine (β-alanine) supplementation on the acute interference effect of high-intensity intermittent exercise (HIIE) on lower-body resistance exercise performance, body composition, and strength when combined with a resistance training program. (2) Methods: Twenty-two males were randomized into: β-alanine supplementation (6.4 g/day) or placebo (6.4 g/day maltodextrin) during 28 days. Total body water, intracellular and extracellular water, fat-free mass (FFM), and fat mass were assessed using bioelectrical impedance. Participants performed 5000-m HIIE (1:1 effort and rest ratio) followed by resistance exercise (four sets of 80% at 45° leg press until muscular failure) at baseline and after 28 days. The resistance training program consisted of three sets of 10 to 12 RM with 90 s of rest, four days per week. (3) Results: For the post-HIIE leg press volume, higher values were observed post-training than pre-training, but no group x time interaction was observed. There was a non-significant trend for an interaction in the FFM change (β-alanine = 2.8% versus placebo = 1.0%, p = 0.072). (4) Conclusion: Twenty-eight days of β-alanine supplementation did not prevent acute strength loss during resistance exercise after high-intensity interval exercise, nor increase strength or hypertrophic adaptations associated with resistance training.

FS, and Rossi, FE. Appetite is suppressed after full-body resistance exercise compared with split-body resistance exercise: the potential influence of lactate and autonomic modulation. J Strength Cond Res 35(9): 2532-2540, 2021-The purposes of this study were to investigate the effects of full-vs. split-body resistance training on appetite and leptin response and to verify the potential involvement of lactate and autonomic modulation during this response in trained men. Twelve recreationally resistance-trained men (age 5 26.1 6 5.5 years) performed 3 randomized trials in 3 conditions: upper body (UB), lower body (LB), and full body (FB). The subjective rating of hunger was obtained through a visual analog scale. Leptin and lactate concentration were evaluated at rest, immediately after exercise, and during recovery. Heart rate variability in the time and frequency domains was recorded at baseline and during recovery (until 60 minutes after exercise) to assess autonomic modulation. The FB condition induced lower subjective hunger ratings than the UB at Post-1 hour ( p , 0.05) and a significant difference in the area under the curve between conditions ( p 5 0.028) with lower hunger sensation for FB in relation to UB ( p 5 0.041). The FB presented greater lactate concentration and induced slower heart rate variability recovery in relation to UB and LB conditions ( p , 0.05), and heart rate variability remained lower until 60 minutes after exercise compared with rest only in the FB condition. There was a significant negative correlation between subjective hunger ratings and lactate concentration only for the FB condition (r 5 20.72, p 5 0.028). Full-body resistance exercise induced lower subjective hunger ratings after exercise in relation to UB resistance exercise. The FB also induced higher lactate production and slower recovery of autonomic modulation compared with the UB and LB conditions. Future research is necessary to investigate a mechanistic relationship between lactate concentrations and hunger suppression after resistance exercise.

RESUMO O cenário de saúde no Brasil tem apresentado várias mudanças nos últimos anos, com destaque para as doenças não transmissíveis. Neste sentido, a realização de atividades físicas recebe amplo incentivo, seja no âmbito científico ou na sociedade em geral. Assim, a escola tem sido apontada como ambiente adequado para o estímulo dessas práticas e demais comportamentos de saúde. O presente trabalho objetiva retrata um projeto de pesquisa e extensão que contempla a ludicidade como meio para a promoção da saúde na infância. A metodologia adotada caracteriza-se como pesquisa-ação, desenvolvida em uma escola pública do oeste paulista. Enfatiza-se a discussão de possibilidades metodológicas para vivências das atividades lúdicas no interior e fora da escola como estratégia de saúde. Relata-se também a necessidade de adoção de suportes teóricos e estruturais que favoreça toda a comunidade escolar, incluíndo os pais ou responsáveis das crianças, quanto às práticas, aos conhecimentos e atitudes positivas à saúde.