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      Chronic effects of resistance exercise using reciprocal muscle actions on functional and proprioceptive performance of young individuals: randomized controlled trial. Translated title: Efeitos crônicos do exercício resistido com contrações recíprocas no desempenho funcional e proprioceptivo de indivíduos jovens: ensaio controlado aleatório

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          Abstract

          Studies have suggested that benefits from resistance exercise (RE) using antagonist muscle pre-activation could be transferred to functional activities. However, chronic studies using pre-activation through reciprocal actions in neuromuscular performance and functional activities are scarce. The aim of this study is to compare the effects of 12 RE sessions using reciprocal muscle actions and a traditional mode on functional and proprioceptive performance of young individuals. Forty eight young subjects were randomized into two groups: 1) reciprocal training (RT, 3 sets; 10 repetitions; knee flexion immediately followed by knee extension), 2) traditional training (TRA, 3 sets. 10 repetitions; knee extension). Pre and post evaluations were characterized by balance tests, hop tests (HT) and "8" shape circuit (RC8). ANOVA 2X2 of mixed model was applied to analyze differences between pre and post-training conditions and between groups. For overall and anterior-posterior balance, no significant differences were found between RT and TRA (p>0.05). Similarly, no post-training differences were found. The medial lateral balance in the dominant limb showed no significant differences in post-training for both groups (p = 0.94), but the non-dominant limb showed significant differences between groups (p<0.01). In HT, significant post-training increases were found within groups (p<0.01), but no differences were found between them (p=0.90). RC8 was different between groups (p=0.03), indicating better post-training running time for TRA. Resistance exercise caused transfers to balance and functional performance, and training with reciprocal muscle actions showed better rates for HT and medial lateral knee balance

          Translated abstract

          Estudos sugerem que benefícios do exercício resistido (ER) com pré-ativação da musculatura antagonista podem ser transferidos para atividades funcionais. No entanto, estudos crônicos utilizando a pré-ativação no desempenho neuromuscular e nas atividades funcionais são escassos. O estudo teve por objetivo comparar os efeitos de 12 sessões de ER com ações recíprocas e um modelo tradicional no desempenho funcional e proprioceptivo de indivíduos jovens. Quarenta e oito homens foram aleatorizados em 2 grupos: 1) treinamento recíproco (TRE, 3 séries; 10 repetições; flexão do joelho imediatamente seguida pela extensão do joelho); 2) treinamento tradicional (TRA, 3 séries; 10 repetições; extensão do joelho). As avaliações pré e pós foram caracterizadas por testes de equilíbrio, salto unipodal em distância (SUD) e corrida em formato de "8" (CR8). Aplicou-se uma ANOVA 2X2 de modelos mistos para analisar diferenças entre as condições pré e pós e entre os grupos. No equilíbrio global e anteroposterior, não foram encontradas diferenças significantes entre os grupos TRE e TRA (p>0,05). Do mesmo modo, não foram encontradas diferenças pós-treinamento. O equilíbrio mediolateral no membro dominante não demonstrou diferenças significantes pós-treinamento (p=0,94), mas o membro não dominante demonstrou diferença significante entres os grupos (p<0,01). No SUD, houve aumentos significantes pós-treinamento nos grupos (p<0,01), mas sem diferença entre ambos (p=0,90). A CR8 apresentou diferença entre grupos (p=0,03), com melhor tempo de corrida do TRA pós-treinamento. O ER gerou transferências para o equilíbrio e testes funcionais, e o treinamento com ações recíprocas apresentou melhores indicativos para o SUD e equilíbrio mediolateral do joelho

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          The specificity of strength training: the effect of posture

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            Accuracy of a computer-based diagnostic program for ambulatory patients with knee pain.

            Looking up information regarding a medical condition is the third most popular activity online, and there are a variety of web-based symptom-checking programs available to the patient. However, the authors are not aware of any that have been scientifically evaluated as an accurate measure for the cause of one's knee pain.
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              Cardiovascular and affective outcomes of active gaming: using the nintendo wii as a cardiovascular training tool.

              Active-video gaming is purported to produce similar cardiovascular responses as aerobic fitness activities. This study compared the emotional and cardiovascular effects of Wii games with those of traditional exercise in college-aged adults with different exercise backgrounds. Specifically, the percentage of heart rate reserve, rate of perceived exertion (RPE), level of enjoyment, and Positive and Negative Affect Schedule scores were compared between subjects who reported exercising frequently at high intensities (high-intensity exerciser group: age = 20.18 years [0.87]; Height = 165.23 cm [9.97]; Mass = 62.37 kg [11.61]), N = 11 and those who exercise more often at lower intensities (low-intensity exercisers group: age = 20.72 years [1.19]; Height = 164.39 cm [8.05]; Mass = 68.04 kg [10.71]), N = 11. The subjects completed six 20-minute exercises sessions: treadmill walking, stationary cycling, and Wii's Tennis, Boxing, Cycling, and Step. The low-intensity exerciser group achieved a greater percentage of heart rate reserve (a) during traditional exercise compared with that during Wii boxing, (b) playing Wii boxing compared with that for Wii tennis, and (c) playing Wii boxing compared with that when the high-intensity exercisers group played any Wii games (p < 0.05). The RPE was greater for boxing and cycling compared with that for tennis and step (p < 0.05). Ratings of enjoyment and the increase in positive emotion were greater for boxing and for tennis compared with those for traditional exercises (p < 0.05). Results suggest that Wii boxing shows the greatest potential as a cardiovascular fitness tool among the Wii games, particularly for individuals who typically exercise at lower intensities.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbcdh
                Revista Brasileira de Cineantropometria & Desempenho Humano
                Rev. bras. cineantropom. desempenho hum.
                Universidade Federal de Santa Catarina (Florianópolis )
                1980-0037
                September 2014
                : 16
                : 6
                : 618-628
                Affiliations
                [1 ] Universidade de Brasília Brazil
                [2 ] Universidade de Brasília Brazil
                Article
                S1980-00372014000600618
                10.5007/1980-0037.2014v16n6p618
                d90e37de-b236-4bb6-b7e3-aa8131d0e65b

                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=1980-0037&lng=en
                Categories
                SPORT SCIENCES

                Sports medicine
                Desempenho funcional,Exercício resistido,Fisioterapia,Força muscular,Joelho,Knee,Muscle strength,Physical Therapy,Resistance exercise,Functional performance

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