ABSTRACT
ABSTRACT Objective The study aimed to verify the relationship between handgrip strength measurement and classic anthropometric values in HIV positive outpatients. Methods This was a cross-sectional study that enrolled HIV-positive outpatients treated at the Gaffrée and Guinle University Hospital, aged between 20 and 60 years and considered to be well-nourished or moderately malnourished, according to the Global Subjective Analysis. The patients' bilateral handgrip strength were assessed (Jamar dynamometer), and classic anthropometry variables (weight, height, body mass index, arm muscle area, arm fat area, arm muscle circumference, and triceps skin fold) were measured. The Kolmogorov-Smirnov test, t-test, bivariate correlation and regression analysis were used (SPSS 21® software), with a significance level of 5%. Results A total of 242 patients were assessed. According to the Global Subjective Analysis, 218 (90.1%) patients were classified as well nourished (Global Subjective Analysis-A) and 24 (9.9%) as moderately malnourished (Global Subjective Analysis-B). The average dominant hand handgrip strength with standard deviation was 30.5±9.5kgf and 24.1±6.1kgf for Global Subjective Analysis-A and Global Subjective Analysis-B patients, respectively. Handgrip values were not influenced by age. The handgrip strength showed in both genders a significant correlation with weight, body mass index, and with anthropometric parameters related to lean body mass (arm muscle circumference and arm muscle area), but without correlation with the non-lean mass parameter (arm fat area). The handgrip strength of the dominant hand was a predictor of the following variables associated with lean body mass, i.e., arm muscle circumference and arm muscle area (R2=0.194, t=7.7, p<0.001, and R2=0.192, t=7.6, p<0.001, respectively). However, handgrip strength was not a predictor of arm fat area. Conclusion Measurement of handgrip strength was a useful method for nutritional assessment in outpatients with HIV due to a significant relationship with anthropometric parameters associated with lean body mass.
RESUMO Objetivo Este estudo buscou verificar a relação entre a mensuração da força de preensão manual e os valores das medidas antropométricas clássicas em pessoas vivendo com HIV em acompanhamento ambulatorial. Métodos O estudo foi transversal, com inclusão de pessoas vivendo com HIV atendidas no Hospital Universitário Gaffrée e Guinle, entre 20 e 60 anos e consideradas bem nutridas ou desnutridas moderadas, de acordo com Análise Subjetiva Global. Foi mensurada a força de preensão manual bilateralmente (dinamômetro Jamar®) e realizada antropometria clássica: peso, estatura, índice de massa corporal, área muscular do braço, área gordurosa do braço, circunferência muscular do braço e dobra cutânea tricipital. Através do software SPSS 21®, foram utilizados o teste de Kolmogorov-Smirnov, teste t, correlação bivariada e análise de regressão, com nível de significância de 5%. Resultados Foram analisados 242 pacientes. Conforme análise de objetivo geral, 218 (90,1%) pacientes foram classificados como bem nutridos (Análise Subjetiva Global-A), e 24 (9,9%), como desnutridos moderados (Análise Subjetiva Global-B). O valor médio com o desvio-padrão da força de preensão manual da mão dominante foi de 30,5±9,5kgf e 24,1±6,1kgf para pacientes Análise Subjetiva Global-A e Análise Subjetiva Global-B, respectivamente. Os valores da força de preensão manual não foram influenciados pela idade. A força de preensão manual apresentou correlação significativa com o peso, com o índice de massa corporal e com parâmetros antropométricos relacionados à massa corporal magra (circunferência muscular do braço e área muscular do braço), mas sem correlação com parâmetro não relacionado à massa magra (força de preensão manual) em ambos os sexos. A força de preensão manual da mão dominante foi preditora das variáveis relativas à massa magra circunferência muscular do braço e área muscular do braço (R2=0,194, t=7,7; p<0,001; e R2=0,192, t=7,6; p<0,001, respectivamente). Contudo, a força de preensão manual não foi preditora da área gordurosa do braço. Conclusão A mensuração da força de preensão manual foi um bom método para avaliação nutricional em pacientes ambulatoriais vivendo com HIV com significativa relação com parâmetros antropométricos associados à massa corporal magra.
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Nutrition Assessment , HIV , Muscle StrengthABSTRACT
BACKGROUNDS AND AIMS: Involuntary weight loss and muscle mass loss among HIV-positive patients are only detectable in late stages, leading poor life quality. The reduction of adductor pollicis muscle thickness (APMT) can be easily and earlier uncovered in those cases. The purpose was to estimate APMT and compare it with immunological and anthropometric parameters of HIV-infected people. METHODS: A crosssectional study was carried out in an University Hospital including 103 HIV-infected outpatients by subjective global assessment (SGA). Data were compared to APMT for the whole sample and between gender in univariate analysis. Besides that, simple correlation and multiple linear regression were done to check the APMT relation with gender, age, weight body, body mass index, arm circumference, CD4, CD8 and viral load. RESULTS: The APMT average values of the dominant hand (16.2 ± 4.2 mm) and non-dominant hand (14.8 ± 4.3 mm) were lower than in the healthy population. Through stratified analysis by gender, it was found significant difference in weight, arm muscle circumference, arm muscle area, triceps skinfold thickness and arm fat area (p < 0,01 for each). In any age group, men had significantly higher dominant and non-dominant APMT values than women (p < 0.001). Although the fair correlation among cited variables and APMT of both hands, there were no correlation and no difference between the genders in regards to immunological markers (CD4, CD8 and viral load). In a prediction model to APMT values, gender was determinant in multiple linear regression. CONCLUSIONS: In a well-nourished HIV sample by SGA with adequate CD4 counts, APMT measures of both hands were lower than in healthy people. In both hands, APMT were positively correlated with weight and male, regardless of other anthropometric data and immunologic factors.
