Navegando por Autor "Gentil, Paulo Roberto Viana"
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- ItemAlterações nos parâmetros cardiorrespiratórios em dois protocolos de treino resistido em idosos(Universidade Federal de Goiás, 2017-12-12) Araújo, Thais Gonçalves; Gentil, Paulo Roberto Viana; Gentil, Paulo Roberto Viana
- ItemAnálise comparativa entre as práticas de treinamento para hipertrofia adotadas por fisiculturistas e as evidências científicas(Universidade Federal de Goiás, 2016-12-07) Santos, Renata Rodrigues; Gentil, Paulo Roberto Viana; Gentil, Paulo Roberto Viana; Lira, Cláudia André Barbosa de; Viana, Ricardo
- ItemComparação de dois métodos de treinamento no treinamento resistido(Universidade Federal de Goiás, 2017-12-12) Campos, Gisele Ferreira; Gentil, Paulo Roberto Viana; Gentil, Paulo Roberto Viana
- ItemKinematics and kinetics of multiple sets using lifting straps during deadlift training(2015) Coswig, Victor Silveira; Freitas, Diogo Felipe Machado; Gentil, Paulo Roberto Viana; Fukuda, David H.; Del Vecchio, Fabricio BoscoloThe deadlift is a fundamental exercise used in the development of whole body strength and a common element in resistance training programs for all levels. However, many practitioners report the fatigue of forearm muscles and possibly a lack of grip strength as obstacles to exercise performance, which may lead to the use of ergogenic aids, such as lifting straps. The objective of this study was to evaluate kinematic variables during the execution of multiple sets of deadlift with (WS) and without (NS) lifting straps. Eleven subjects (25 6 3.3 years) with an average of 4 6 2.6 years of resistance training experience were enrolled in the study. After the 1 repetition maximum (1RM) test WS and NS, subjects performed separate trials of 3 sets to failure at 90% of 1RM in a counterbalanced fashion. With straps resulted in lower speed (0 to 225%) (23 to 210%) and greater force (20–28%) and duration (concentric phase: 0–13%) when compared with NS. Therefore, it is concluded that the use of straps directly influences exercise performance that requires manual grip strength, increasing the amount of work performed by the target muscles.
- ItemMusculação: crença vs. evidências(2015-10) Teixeira, Cauê Vazquez La Scala; Motoyama, Yuri Lopes; Gentil, Paulo Roberto VianaStrength training is a common form of physical exercise in gyms and a scientific fields that has evolved over the past decades. However, the practice of strength training in gyms is still surrounded by myths, cultural beliefs and the practical application of scientific evidence in the training prescription seems to be far from the reality. Thus, it is necessary to confront common practices with the most relevant scientific findings in order to endorse this behavior if they are converging, or redirect them, in case of disagreement. The aim of this study is do a critical essay on some beliefs adopted in strength training routines, based on relevant theoretical and scientific references.
- ItemA nutrition and conditioning intervention for natural bodybuilding contest preparation: observations and suggestions(2015) Gentil, Paulo Roberto VianaBodybuilding is full of myths and practices that are contrary to the scientific literature, which can lead to health problems. Adopting a scientifically designed approach is very important, as it may help bodybuilders to achieve better results while preserving their health. However, I have some criticism regarding some practices adopted in the referred article as ad libitum ingestion of sugar-free cordial and flavored tea and the performance of the exercise in fasted state, as it seems to bring no benefit and have some potential problems. Some suggestion are made in order to preserve FFM, like changing training split and exercise selection; increasing carbohydrate ingestion and decreasing protein intake; changing the resistance training stimuli and reducing the volume of aerobic exercises and increase its intensity.
- ItemSingle vs. multi-joint resistance exercises: effects on muscle strength and hypertrophy(2015-06) Gentil, Paulo Roberto Viana; Soares, Saulo Rodrigo Sampaio; Marques, Martim Francisco BottaroBackground: Some authors suggest that single joint (SJ) exercises promote greater muscle hypertrophy because they are easier to be learned and therefore have less reliance on neural factors. On the other hand, some authors recommend an emphasis on multi-joint (MJ) exercises for maximizing muscle strength, assuming that MJ exercises are more effective than SJ exercises because they enable a greater magnitude of weight to be lifted. Objectives: The present study aimed to compare the effects of MJ vs. SJ exercises on muscle size and strength gains in untrained young men. Patients and Methods: Twenty-nine young men, without prior resistance training experience, were randomly divided into two groups. One group performed (n = 14) only MJ exercises involving the elbow flexors (lat. pull downs), while the other (n = 15) trained the elbow flexors muscles using only SJ exercises (biceps curls). Both groups trained twice a week for a period of ten weeks. The volunteers were evaluated for peak torque of elbow flexors (PT) in an isokinetic dynamometer and for muscle thickness (MT) by ultrasonography. Results: There were significant increases in MT of 6.10% and 5.83% for MJ and SJ, respectively; and there were also significant increases in PT for MJ (10.40%) and SJ (11.87%). However, the results showed no difference between groups pre or post training for MT or PT. Conclusions: In conclusion, the results of the present study suggest that MJ and SJ exercises are equally effective for promoting increases in upper body muscle strength and size in untrained men. Therefore, the selection between SJ and MJ exercises should be based on individual and practical aspects, such as, equipment availability, movement specificity, individual preferences and time commitment.
- ItemSuplementação com cafeína não altera desempenho, potência e dor muscular após uma sessão de crossfit(Universidade Federal de Goiás, 2017-07-10) Fogaça, Lorruama Jonas; Santos, Sílvia Loiola; Mota, João Felipe; Mota, João Felipe; Pimentel, Gustavo Duarte; Gentil, Paulo Roberto Viana
- ItemThe effects of resistance training on lower and upper body strength gains in young women(2015) Gentil, Paulo Roberto Viana; Ferreira Júnior, João Batista; Bemben, Michael George; Ferreira, Diogo Vilela; Marques, Martim Francisco BottaroIt has been reported that hypertrophy gains is greater in upper body compared to lower body, however, there is no consensus that muscular strength gains are greater in upper body than in lower body. Therefore, the aim of the present study was to compare the strength gains between knee extensors and elbow flexors in response to similar resistance training regimens. Fifty five untrained young women (age: 21.6 ± 2.9 years, weight: 58.3 ± 9.0 kg and height: 163.6 ± 7.5 cm (Mean±SD)) participated in the study as volunteers. Resistance training was performed twice a week for 10 weeks. All subjects performed three sets of 8-12 maximum repetitions for leg press, knee flexion, lat pull down and bench press exercises. Unilateral knee extensors and elbow flexors peak torque (PT) were measured before and after the training period by performing two sets of four repetitions at 60°s-1, on an isokinetic dynamometer. There were significant increases in PT for both elbow flexors (11.74% [8.0, 17.7], p< 0.05) and knee extensors (11.45% [9.2, 15.3], p< 0.05) with no differences between muscle groups p> 0.05). However, there was no correlation between gains in knee extensors and elbow flexors PT. The analysis of knee extensors PT lead to the formation of two clusters groups: 1) High responders (n=10): 28.29 ± 8.74% and 2) Low-responders (n=37): 7.94 ± 5.95%. Both groups had significant increases in knee extensors PT, however, increases in the high responders were higher than in low responders (p< 0.05).These results suggest that upper- and lower body muscles present similar strength gains after similar resistance training regimens in untrained young women, although individual muscle response may vary in upper and lower body muscles.