Estudo da força de preensão manual em escolares de 11 a 17 anos de idade

• Autor(a) principal: Walter, Marcia Ramos
• Data de Publicação: 2017
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/8304
• topic: Handgrip strength; Teenagers; Children; Hand anthropometrics; Força de preensão; Adolescentes; Crianças; Antropometria da mão; Aptidão física em jovens; Força muscular; Crianças Antropometria; Adolescentes - Antropometria; Mãos Fisiologia; CNPQ::CIENCIAS DA SAUDE::EDUCACAO FISICA

Muscle strength (MS) plays an important role in physical fitness and well-being. Among the tests for muscle group strength exertion measurement, the handgrip strength test is the one that best measures muscle strength exertion in general terms. This Project aims to establish the level of correspondence between handgrip strength production capacity and anthropometry, specially hand anthropometrics and also estimate the development curve of grip strength according to age in a group of students between 11 to 17 years old from a public school. As secondary objectives, the aforementioned study aims to compare handgrip strength production between sexes and dominant and nondominant hand according to the ages previously mentioned and map the mean values of grip strength and establish methodological basis for further development of the ongoing research with bigger groups. This is a cross-sectional study with collected data from a sample of 583 individuals (305 boys and 278 girls). Sampling stratification was carried out according to age, sex and hand dominance. The students anthropometrics, height, hand width, hand length and hand span were taken into account and were compared to hand strength measurement protocols literature. Grip strength was measured using a Jamar hydraulic dynamometer. Statistical analysis was carried out by means of distributional adequacy tests having Shapiro-Wilk test as a reference. Data comparison was carried out by means of Student test-t and Mann-Whitney U for the two-sample. The level of correspondence between handgrip strength production capacity and hand anthropometrics was evaluated by means of Pearson and Spearman tests. The results showed handgrip strength production capacity increase during adolescence and meaningful difference between sexes starting at 13, when boys presented greater handgrip strength production capacity. No difference in handgrip strength production capacity was observed between dominant and nondominant hand in boys, whereas girls presented meaningful differences from 12 to 15. There is correlation between handgrip strength production capacity and anthropometrics variables. The correlation with weight and hand width stood out for both sexes. Male individuals presented a greater number of correlations between handgrip strength production capacity and anthropometric variables than female individuals. These results show the need for protocols standardization and new population-based studies to evaluate adolescent handgrip strength production capacity