Fat mass is negatively associated with the physiological ability of tissue to consume oxygen
Motriz (Online)
; 24(4): e101808, 2018. ilus, tab
Article
in En
| LILACS
| ID: biblio-976256
Responsible library:
BR33.1
ABSTRACT
To describe the relationship between variables related to body composition and peak oxygen uptake ( VËO2 peak) and to verify whether fat mass can affect these relationships. Methods:
Eighty participants underwent cardiopulmonary exercise testing to measure VËO2 peak and a body composition assessment to measure fat mass, fat free mass (FFM), and total body mass (BM).Results:
There were significant relationships between VËO2 peak relative to FFM (fat free mass) (mL/kgFFM/min) and absolute fat mass (kg) (r=-0.50, p<0.001) and relative fat mass (%) (r=-0.56, p<0.001). Absolute VËO2 peak (L/min) had a high positive relationship with FFM (r=0.83, p<0.0001); the relationship between VËO2 peak (L/min) and FFM remained high and positive even when accounting for absolute fat mass (kg) (r=0.83, p<0.001). VËO2 peak relative to total body mass (mL/kgBM/min) showed a high negative relationship with relative fat mass (%) (r=-0.89, p<0.001) and a positive relationship with fat free mass (kg) (r=0.57, p<0.001), which did not change when accounting for fat mass (kg) (r=0.56, p<0.001).Conclusion:
These data indicate that the physiological ability of tissue to consume oxygen ( VËO2 peak in mL/kgFFM/min) is negatively associated with fat mass. Moreover, the individual's cardiorespiratory capacity to transport oxygen for working muscles ( VËO2 peak in L/min) is strongly related to absolute FFM, and this association is not affected by fat mass. Finally, a better body mass composition (high FFM and low fat mass) is important for aerobic physical fitness ( VËO2 peak in mL/kgBM/min) and improved physiological ability of tissue to consume oxygen ( VËO2 peak in mL/kgFFM/min).(AU)Key words
Full text:
1
Index:
LILACS
Main subject:
Oxygen Consumption
/
Body Composition
/
Body Weight
Type of study:
Risk_factors_studies
Limits:
Adolescent
/
Adult
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Female
/
Humans
/
Male
Language:
En
Journal:
Motriz (Online)
Journal subject:
EducaÆo F¡sica e Treinamento
/
Medicina Esportiva
/
Medicina F¡sica e ReabilitaÆo
Year:
2018
Type:
Article
/
Project document