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      Efeito de 16 semanas de treinamento com pesos sobre a força muscular de mulheres não treinadas Translated title: Effect of 16 weeks of weight training on the muscular strength in untrained women

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          Abstract

          O objetivo deste estudo é investigar o impacto de 16 semanas de treinamento com pesos (TP) sobre a força muscular de mulheres não treinadas (18-30 anos). As participantes foram separadas aleatoriamente em dois grupos: treinamento (GT= 15) e controle (GC= 16). O programa de TP foi progressivamente estruturado em duas etapas (oito semanas cada) e frequência de três sessões semanais. A força muscular foi avaliada antes (M1), após oito (M2) e 16 semanas (M3), utilizando o teste de 1-RM nos exercícios supino (SUP), agachamento (AGA) e rosca direta de bíceps (RDB). Interações grupo vs. tempo (P<0,001) foram identificadas em todos os exercícios analisados com ganhos de força muscular na ordem de 22,9% (SUP), 23,6% (AGA) e 22,8% (RDB) no GT, sendo que a maior parte ocorreu entre M1-M2 (SUP =18,4%; AGA=16,0%; RDB =14,7%). Os resultados sugerem que 16 semanas de TP acarretam ganhos generalizados de força muscular em mulheres não treinadas.

          Translated abstract

          The purpose of this study was to investigate the impact of 16 weeks of resistance training (RT) on muscular strength in previously untrained women (18-30 years). Participants were randomly divided in two groups: training (TG = 15) and control (CG= 16). The RT protocol was progressively structured in two phases (eight weeks each), with a frequency of three weekly sessions. Muscular strength was measured at baseline (M1), after eight (M2) and 16 weeks (M3), through the 1-RM in bench press (BP), squat (SQ) and arm curl (AC). Interaction between group and time (P<0.001) were identified in all exercises evaluated with strength gains in the order of 22.9% (BP), 23.6% (SQ) and 22.8% (AC) in the TG, and the most occurred between M1-M2 (BP=18.4%; SQ=16.0%; AC=14.7%). The results suggest that 16 weeks of RT cause generalized muscle strength gains in untrained women.

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          Is savage's independence axiom a universal rationality principle?

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            Time course for strength and muscle thickness changes following upper and lower body resistance training in men and women.

            The purpose of this study was to investigate the time course of skeletal muscle adaptations resulting from high-intensity, upper and lower body dynamic resistance training (WT). A group of 17 men and 20 women were recruited for WT, and 6 men and 7 women served as a control group. The WT group performed six dynamic resistance exercises to fatigue using 8-12 repetition maximum (RM). The subjects trained 3 days a week for 12 weeks. One-RM knee extension (KE) and chest press (CP) exercises were measured at baseline and at weeks 2, 4, 6, 8, and 12 for the WT group. Muscle thickness (MTH) was measured by ultrasound at eight anatomical sites. One-RM CP and KE strength had increased significantly at week 4 for the female WT group. For the men in the WT group, 1 RM had increased significantly at week 2 for KE and at week 6 for CP. The mean relative increases in KE and CP strength were 19% and 19% for the men and 19% and 27% for the women, respectively, after 12 weeks of WT. Resistance training elicited a significant increase in MTH of the chest and triceps muscles at week 6 in both sexes. There were non-significant trends for increases in quadriceps MTH for the WT groups. The relative increases in upper and lower body MTH were 12%-21% and 7%-9% in the men and 10%-31% and 7%-8% in the women respectively, after 12 weeks of WT. These results would suggest that increases in MTH in the upper body are greater and occur earlier compared to the lower extremity, during the first 12 weeks of a total body WT programme. The time-course and proportions of the increase in strength and MTH were similar for both the men and the women.
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              Position stand on Progression models in resistance training for healthy adults

              (2009)
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                refuem
                Revista da Educação Física / UEM
                Rev. educ. fis. UEM
                Universidade Estadual de Maringá (Maringá )
                1983-3083
                December 2013
                : 24
                : 4
                : 649-658
                Affiliations
                [1 ] Faculdade Ingá Brazil
                [2 ] Universidade de São Paulo Brazil
                [3 ] Universidade Estadual de Londrina Brazil
                Article
                S1983-30832013000400012
                10.4025/reveducfis.v24.4.17020
                1ba75f5b-7f3c-41a6-9663-2d3f283ad7e0

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1983-3083&lng=en
                Categories
                SPORT SCIENCES

                Sports medicine
                Muscle strength,Resistance training,Physiological adaptations,Força muscular,Avaliação do desempenho,Adaptação fisiológica

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