Background: Physical activity is bodily movement produced by skeletal muscle that requires energy expenditure and promotes health benefits. Appropriate physical activity is important in the prevention of cardiovascular disease, coronary heart disease, type 2 diabetes mellitus, obesity, metabolic syndrome, breast cancer, and others.
Objective: The aim of the study was to compare the body composition of the selected group of women in relation to physical activity (group of sporting women (S) versus group of non-sporting women (N-S) using an InBody 230 instrument based on the principle of bioelectric impedance.
Material and methods: The group consisted of 140 women (nS = 70 vs nN-S = 70) aged 20-63 years (the average age of women doing sport was 41.1 ± 11.9 and 42.3 ± 10.87 for non-sporting women). Anthropometric measurements were made using the InBody 230 (Biospace Co. Ltd., Seoul, Republic of Korea). The Lookin’Body 3.0 software to process the results was used. The collected data concerning the anthropometric measurements were evaluated statistically and graphically in Microsoft Office Excel 2010 (Los Angeles, CA, USA).
Results: The average value of BMI (Body Mass Index) of sporting women was 24.20 ± 3.54 kg.m-2 and non-sporting women 27.30 ± 5.97 kg.m-2 (P<0.5). Average values of WHR (Waist hip ratio) were higher than 0.85 for both groups. Average BMR (Basal metabolic rate) values of women doing sport ranged from 1364-1585 kcal. The higher percentage of TBW (Total body water), ICW (Intracellular water) and ECW (Extracellular water) from the average body weight was achieved by the group of women doing sport, where the average TBW was 51.51% of body weight, ICW 31.93% and ECW 19.58% of body weight. Higher values of FFM (Fat free mass) were achieved by a group of sporting women. The average BFM in the group of women doing sport was 20.10 ± 6.73 kg, in the non-sporting group 27.60 ± 12.73 kg. The minimum PBF in the sporting group of women was 16.40% and a maximum of 43.30%; the minimum value in the group of women doing not sport was 19.30% and a maximum of 50.40% (p <0.01). The average VFA (Visceral fat area) in the group of women doing sport was 86.70 ± 28.79 cm2 and in the group of non-sporting women 113.90 ± 44.95 cm2 (p<0.01).
Conclusions: The results of the measurements show the positive influence of physical activity on components of body composition in all age categories. Physical activity, along with rational nutrition, should be part of a healthy lifestyle for each individual.
Keywords: body composition; total body water; fat free mass; body fat mass; physical activity.