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Comparação dos efeitos dos protocolos de progressão da sobrecarga do treinamento de força nos ganhos de força e hipertrofia muscular: um estudo uni-cego, randomizado, controlado intra-sujeito
(Universidade Federal de São Carlos, 2023-04-11) Chaves, Talisson Santos; Libardi, Cleiton Augusto; https://lattes.cnpq.br/8953409094842074; https://orcid.org/0000-0002-9003-7610; https://lattes.cnpq.br/8763654450242923; https://orcid.org/0000-0002-4795-6697
This was a single-blind, randomized, within-subject controlled study that aimed to compare the effects of overload progression protocols by intensity (progINT) and volume (progVOL) on muscle strength and muscle cross-sectional area (MCSA). Thirty-nine volunteers (20 men and 19 women) had their legs randomized to progINT and progVOL. Both training protocols were performed unilaterally on the knee extension machine, 2-3 times per week for 10 weeks. The progINT protocol consisted of using a previously determined maximal repetition zone (i.e., 9 to 12 repetitions), and load was adjusted only when the individual performed more or fewer repetitions than previously stipulated. For the progVOL, load was not altered, but repetitions were increased whenever the moment of concentric muscular failure was prolonged. The primary outcomes (muscle strength and MCSA) were evaluated before and after 23 training sessions. Muscle strength was evaluated through the one-repetition maximum test (1RM) on the knee extension machine, and lateral vastus MCSA was evaluated by ultrasound. To compare the volume load (i.e., sets x repetitions x weight [kg] [VL]) accumulated between the protocols, the sum of the VL of all training sessions was considered. To compare the VL progression between the protocols, the average VL of the first three and last three sessions of the experimental period was considered. Evaluators were blinded to the allocation of legs. A significance level of p < 0.05 was adopted. Both protocols promoted increases in 1RM values from pre (progINT: 52.90 ± 16.32 kg; progVOL: 51.67 ± 15.84 kg) to post (progINT: 69.05 ± 18.55 kg, progVOL: 66.82 ± 17.95 kg), with no difference between them (p > 0.05). Both protocols promoted increases in MCSA values from pre (progINT: 21.34 ± 4.71 cm²; progVOL: 21.08 ± 4.62 cm²) to post (progINT: 23.53 ± 5.41 cm², progVOL: 23.39 ± 5.19 cm²),8 with no difference between them (p > 0.05). There was no difference between protocols in accumulated VL (progINT: 53,703 ± 17,390 vs. progVOL: 52,528 ± 18,283 kg; p = 0.34) or in progression VL (progINT: 882 ± 491 kg vs. progVOL: 1,107 ± 586 kg; p = 0.084). We found no differences between overload progression protocols by intensity and volume in gains of strength and muscle hypertrophy in untrained individuals.
Contribuições das unidades de auditorias das universidades federais brasileiras para os indicadores de impacto social
(Universidade Federal de São Carlos, 2023-04-11) Contarin, Jaqueline; Amaral, Roniberto Morato do; https://lattes.cnpq.br/6958372164719600; https://lattes.cnpq.br/5410513888562693
Brazilian Federal Universities (UFs) contribute to the country’s political, economic, cultural, and social development, through education, research, outreach, and innovation. In this context, measuring results, mitigating risks, and improving work processes in universities are key to the success of their institutional projects and to the impact on society’s sustainable development. The main goal of this work was to research the contribution of Brazilian UF audit units to the improvement of their social indicators, based on the 17 Sustainable Development Goals (SDGs), implemented by the United Nations, and incorporated by the Times Higher Education (THE) university ranking. The method used was document analysis, with a mixed quantitativequalitative approach. The sample analyzed included 286 audit reports from 2019 to 2020, retrieved from the institutional websites of 33 UFs. The results comprise a set of indicators that characterize the activities of UF audit units and identify the relationship between the audit units’ recommendations and their contribution to the development and improvement of the UFs’ social indicators. The theoretical discussion and obtained results are expected to contribute to the research on the role of universities and their social impact through the development of social indicators, while using the relationship between recommendations from audit units and the respective areas in the social indicators.
Análise molecular de seis populações de Thalassomya gutae (Diptera, Chironomidae) da costa nordeste brasileira
(Universidade Federal de São Carlos, 2023-04-11) Tanino, Érika Sayuri; Fusari, Lívia Maria; https://lattes.cnpq.br/4951378712238107
Species of Chironomidae living in marine environments are recorded in coastal areas throughout the world. These species belong to several taxonomic groups, including representatives of the Telmatogetoninae subfamily. Telmatogetoninae is predominantly found in intertidal habitats, being associated with rocky shores. It is represented by two genera: Telmatogeton Schiner and Thalassomya Schiner. Telmatogeton is recorded in Brazil through the occurrence of three species: Telmatogeton atlanticus Oliveira, Telmatogeton eshu Oliveira and Telmatogeton nanus Oliveira, with only the adults known. Thalassomya, in turn, was recorded in the country with the description of adult male, pupa and larva of Thalassomya gutae Neubern, Silva & Trivinho-Strixino. The species T. gutae has a wide geographic distribution, being found in many locations on the northeastern coast. In this context, the present work aimed to verify whether the analyzed populations, recognized as T. gutae, belong to this species or are considered cryptic species. Thus, we analyzed six populations distributed in the northeast region, in the states of Rio Grande do Norte, Paraíba, Alagoas and Bahia. In this way, advances were promoted in the DNA barcode extraction and amplification protocol for this species and the molecular status of the populations was defined.