with resting energy expenditure (REE) and abdominal fat subdepots.
Methods: We evaluated 270 participants with abdominal
obesity [waist circumference (WC)=107 cm, 32 women]using
gold-standard techniques to define NEAT, REE and abdominal
fat distribution. Each participant was assessed by accelerometer for six days to measure all performed movements. We
defined NEAT as 1 3 metabolic equivalents (METs) and nonspontaneous activity (NSA) as 4 9 METs. We used indirect
calorimetry to assess fasting REE and performed MRI imaging
to assess abdominal fat distribution at L5-L4.
Results: In multivariate regression models, adjusted for sex
and blood biomarkers, NEAT was independently associated
with increased REE/kg body weight (beta = 0.126; pv = 0.049)
and with decreased WC (beta = 0.137; pv = 0.037). Proportion
of NEAT from total activity time (TAT)/day was directly
associated with proportion of superficial subcutaneous fat
from total abdominal fat (beta = 0.141; pv = 0.003), and was
inversely associated with proportion of visceral fat from total
abdominal fat (beta = 0.142; pv = 0.011).
Conclusion: Increased energy expenditure from daily casual
activities might be beneficial for increased REE and for
improved abdominal fat distribution.