Anthropometric indicators as predictors of dynapenia in postmenopausal women

Abstract

Anthropometry represents an alternative to the evaluation of nutritional status and screening of events related to muscle fitness. Therefore, this study aimed to compare anthropometric indicators of postmenopausal women with and without dynapenia and to identify the predictive capacity of these indicators to screen the respective outcome in this population. Methods: Cross-sectional epidemiological study, conducted with postmenopausal women.Dynapenia was diagnosed by handgrip strength < 20 kgf. Arm (AC), abdominal (AbC), hip (HC) and calf circumferences (CC), triceps, biceps, subscapular, supraspinatus and thigh skinfolds were analyzed. Body Mass Index, Conicity Index (CI), Body Adiposity Index (BAI), Waist to Hip and Waist to Height Ratio (WHtR), Corrected Arm Muscle Area (CAMA) and Arm Muscle Circumference (AMC) were calculated. Results: A total of 273 women participated in the study. The BAI, WHtR, and CI did not present significant differences between the groups. For the other indicators, the dynapenic group obtained significantly lower values compared to the non-dynapenic. AC was the indicator with the highest sensitivity to screen for postmenopausal dynapenia (79.8%). While CAMA and AMC were the indicators with the best specificity (86.2%). However, CC showed the best balance between sensitivity (67.5%) and specificity (63.0%). Conclusion:The indicators AC, CAMA, and/or the AMC can be used together, or CC alone, to predict postmenopausal women with dynapenia. Therefore, these indicators can be used as important epidemiological tools to improve women's health surveillance actions.

Indicadores de estado nutricional e desempenho funcional em idosos conforme a trajetória de sintomas depressivos

“…Esse resultado também leva a inferir que no sexo masculino, as reduções da MMT não estão relacionadas aos sintomas depressivos, mas a outros fatores não investigados, pois quando analisado a diferença média da MMT entre os grupos, notou-se que os idosos que deixaram de apresentar os sintomas depressivos tiveram maior perda de massa que os idosos com incidência desses sintomas. Além do mais, a literatura aponta que o próprio envelhecimento fisiológico é responsável por declínio na massa muscular [35][36][37][38] , existindo perda anual de 1-2,0% a partir dos 50 anos de idade 35 .…”

Habitual physical activity and sedentary behavior as predictors of dynapenia in older adults: a cross-sectional study

“…14 However, the handheld hydraulic dynamometer, the instrument necessary for such measurement, is unavailable in most healthcare units and/or outpatient clinics, necessitating the requirement of investigating measures that are more accessible to screen this outcome in older adults. 17 There is robust evidence about the connection of the strong impact of habitual physical activity (HPA) and sedentary behavior (SB) on the level of muscle fitness, throughout aging, such that older adults with insufficient levels of physical activity and high exposure to SB demonstrate less strength. 11,19,20 Therefore, the hypothesis is verified that time spent in HPA, considering different dimensions, such as activities, work, commuting and leisure and the time of sedentary behavior, quantified by validated instruments, such as the International Physical Activity Questionnaire (IPAQ) 21,23 are presented as a possible strategy to be used for screening muscle weakness in older adults.…”

“… 14 However, the handheld hydraulic dynamometer, the instrument necessary for such measurement, is unavailable in most healthcare units and/or outpatient clinics, necessitating the requirement of investigating measures that are more accessible to screen this outcome in older adults. 17 , 18 …”

Prevalence and factors associated with dynapenia in older women using different diagnostic criteria

“…The aging process is associated with physiological modifications in all body systems 1 . This means that structural adaptations and/or muscle function can directly impact the functional capacity of older adults at the level of the musculoskeletal system 2,3 .…”