Influência de variáveis do treinamento contra-resistência sobre a força muscular de idosos: uma revisão sistemática com ênfase nas relações dose-resposta

Silva, Nádia Lima da; Farinatti, Paulo de Tarso Veras

doi:10.1590/s1517-86922007000100014

Cited by 30 publications

(39 citation statements)

References 35 publications

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“…Urea circulates in the blood, and is later excreted in the urine 7 . Blood urea concentration depends on physical exercises, which, on their turn, have muscular strength as an important component.The combination of the number of repetitions, sets and overload are the strength training components, although it is not clear yet which is the best combination of the mentioned variables for a better response 8 . Strength training in bodybuilding is well-spread as a sports training instrument and it can be periodizedor not.…”

Section: Introductionmentioning

confidence: 99%

Força muscular, níveis séricos de testosterona e de ureia em jogadores de futebol submetidos à periodização ondulatória

Pacobahyba¹,

Vale²,

Souza³

et al. 2012

Rev Bras Med Esporte

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The aim of this study is to evaluate the muscle strength and basal serum testosterone and urea levels in soccer athletes. Twenty-four soccer players in pre-competitive period had a blood sample collected to have testosterone and urea concentrations analyzed. Subsequently, 1RM tests were applied to the bench press and squat exercises. After data collection, the athletes were randomly divided in two groups submitted to: non-linear periodization program (G1) and non-periodized program (G2), both for 12 weeks. ANOVA for repeated measures showed increase in serum testosterone concentration in G1 (∆ = 3.70 ng/dl; p = 0.0001) and in G2 (∆ = 1.81 ng/dl; p = 0.035) and reduction in urea levels only in G1 (∆ = -3.08mg%; p = 0.0001). G1 presented higher levels of testosterone (∆ = 2.13 ng/dl; p = 0.009) and lower levels of urea (∆ = -1.36mg%; p = 0.026) in the post-test when compared to G2. 1RM tests did not show significant differences. The non-linear training in soccer players was more effective than the non-periodized training in promoting increase in serum testosterone levels and reduction in urea levels.

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Section: Introductionmentioning

confidence: 99%

Força muscular, níveis séricos de testosterona e de ureia em jogadores de futebol submetidos à periodização ondulatória

Pacobahyba¹,

Vale²,

Souza³

et al. 2012

Rev Bras Med Esporte

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“…Desse modo, seria razoável pensar que as idosas do GE teriam se beneficiado dos efeitos da prática regular de exercícios físicos (9,10,24) . Além disso, as idosas fisicamente ativas percorreram a distância com menor FC absoluta (GNE = 119 ± 17bpm vs. GE = 113 ± 22bpm) e menor percentual representativo da FCmáx (GNE = 77 ± 9,9bpm vs. GE = 74 ± 12,6bpm), apesar de diferenças significativas não terem sido constatadas para essas variáveis.…”

Section: Discussionunclassified

“…Por outro lado, é comum associar-se a autonomia às incapacidades desencadeadoras de dependência física e psíquica (5) , desconsiderando os problemas ambientais, sociais, culturais e econômicos que, seguramente, em maior ou menor extensão participam do processo (6) . Muitos autores têm estudado sob diferentes ângulos a relação entre o exercício físico regular e os níveis de autonomia/independência do idoso, quer nos seus aspectos biológicos (4,5,(7)(8)(9)(10)(11)(12) , quer em aspectos psicossocioculturais (2,3,12,13) . A autonomia dos idosos é, não raro, associada à mera ausência de incapacidades estabelecidas clinicamente; entende-se que, da mesma forma que a saúde não é ausência de doença, a autonomia não é ausência de dependência física (14) .…”

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Estudo comparativo da autonomia de ação de idosas praticantes e não praticantes de exercícios físicos regulares

Perez

Tavares

Fusi

et al. 2010

Rev Bras Med Esporte

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RESUMOA prática regular de exercícios físicos pode afetar favoravelmente a autonomia. O estudo comparou a autonomia de ação de idosas praticantes (GE, n = 27) e não praticantes (GNE, n = 21) de exercícios, valendo-se do Sistema Sênior de Avaliação da Autonomia de Ação (SysSen). O SysSen é composto por questionário (QSAP), voltado para necessidades de potência aeróbia (PA) e força (FO) em atividades compatíveis com uma vida percebida como autônoma, e teste de campo (TSMP), no qual se caminha 800m transportando cargas predeterminadas. O QSAP fornece o índice de autonomia exprimida (IAE) e o TSMP o índice de autonomia potencial (IAP) que, cruzados, definem o índice de autonomia de ação (IAP/IAE = ISAC). Um ISAC ≥ 1,0 caracteriza o sujeito como autônomo. Os grupos eram similares quanto à idade (GNE = 68 ± 5 vs. GE = 69 ± 6 anos; p = 0,56), peso (GNE = 65,7 ± 14,6 vs. GE = 67,4 ± 10,1kg; p = 0,65) e estatura (GNE = 1,54 ± 0,05 vs. GE = 1,56 ± 0,04m; p = 0,28). Houve diferenças significativas para o tempo de execução do TSMP (GNE = 678,9 ± 78,0 vs. GE = 631,0 ± 91,1s; p = 0,05) e IAP (GNE = 64,4 ± 5,2 vs. GE = 68,2 ± 4,7; p = 0,01). No tocante ao QSAP, não se constataram diferenças significativas para o IAE (GNE = 73,3 ± 57,0 vs. GE = 73,7 ± 5,1; p = 0,85) ou necessidades de FO e PA. Todavia, os resultados para PA e FO foram maiores para GE nos itens relacionados às atividades que as idosas faziam efetivamente (p < 0,05). Não houve diferença entre os grupos para o ISAC (p = 0,55). Conclui-se que a prática regular de exercícios não influenciou significativamente a autonomia de ação apreciada pelo SysSen, provavelmente em virtude de elevação proporcional do IAE e IAP nos grupos ativo e inativo. Palavras-chave: envelhecimento, autonomia funcional, atividade física, aptidão física, saúde. ABSTRACTRegular exercise practice is favorably related with functional autonomy. The aim of this study was to investigate whether the physical activity level influences on the results of the Senior System for Assessment of Action Autonomy (SysSen) in elderly women. The SysSen is composed of a questionnaire (QSAP) focusing on the needs of aerobic power (AP) and upper limb strength (S) for a life perceived as autonomous, and a field test (TSMP), in which the subject walks 800m carrying pre-set loads. The QSAP provides the Expressed Autonomy Index (EAI) and the TSMP, the Potential Autonomy Index (PAI). The ratio between EAI and PAI defines the Autonomy of Action Index (PAI/EAI = AAI). An AAIof 1.0 or more characterizes the subject as independent. The subjects were either assigned to physically active (EG, n = 27) or non-active groups (NEG, n = 21), which were similar in age (NEG = 68 ± 5 vs EG = 69 ± 6 years; p = 0.56), weight (NEG = 65.7±14.6 vs EG= 67.4±10.1 kg; p = 0.65), and height (NEG = 1.54 ± 0.05 vs EG = 1.56 ± 0.04 m; p = 0.28). No differences were found for the EAI (NEG 73.3 ± 57.0 vs EG= 73.7±5.1; p = 0.85) or needs related to AP and S. However, the results for AP and S in EG were higher in the items concerned with the activities...

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“…Age-related changes in the sensorimotor system and the neuromuscular system negatively affect the performance of static and dynamic postural control, even in the healthy elderly (6,7) . These changes also affect the reaction time, the degree of oscillation of the body increases, even in simple positions, such as an upright posture, causing elderly individuals to suffer more oscillations (8) and are more susceptible to falls.…”

Section: Introductionmentioning

confidence: 99%

Correlation between static postural balance, falls and pick torque isokinetic of extensors and flexors of the knee in elderly

Stocco¹,

Pires-Oliveira²,

Oliveira³

et al. 2020

mtprehabjournal

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ABSTRACT:Introduction: Declines of static postural balance and muscle strength, especially of lower limbs are strong predictors of falls in the elderly. Objective: The objective of this study was to identify the possible correlation between static postural balance, falls and isokinetic torque peak of knee extensors and flexors in the elderly. Methods: A cross-sectional study with anthropometric evaluation of static postural balance in unipodal limb support was performed using the force platform, flexural strength test and knee extension of the dominant limb using the isokinetic dynamometer and the application of a structured questionnaire on falls. They agreed to participate in the study 106 volunteers of both sexes through the signing of the free and informed consent. The data were treated in the Statistical Package for the Social Sciences program version 20.0. Results: There was a weak positive correlation between center of pressure (COP) area and peak flexion torque (r=0.204, p=0.041) and extension (r=0.228; p=0.022) of the knee, as well as peak extension (r=0.319, p=0.001) and lateral mean (r=0.324, p=0.001). A moderate positive correlation between COP area and anteroposterior velocity (r=0.694, p=0.000) and lateral mean (r = 0.646; p = 0.000) and strong positive correlation was found only between peak flexion torque and knee extension (r=0.719, p=0.000). Conclusion: There was a weak correlation between static postural balance and dominant lower limb muscle strength, and there was no correlation between falls and lower limb muscle strength, or between falls and static postural balance in the studied sample.

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Influência de variáveis do treinamento contra-resistência sobre a força muscular de idosos: uma revisão sistemática com ênfase nas relações dose-resposta

Cited by 30 publications

References 35 publications

Força muscular, níveis séricos de testosterona e de ureia em jogadores de futebol submetidos à periodização ondulatória

Força muscular, níveis séricos de testosterona e de ureia em jogadores de futebol submetidos à periodização ondulatória

Estudo comparativo da autonomia de ação de idosas praticantes e não praticantes de exercícios físicos regulares

Correlation between static postural balance, falls and pick torque isokinetic of extensors and flexors of the knee in elderly

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