Physical activity and dietary behavior with red blood cell distribution width

PD Loprinzi, ME Hall - Physiology & behavior, 2015 - Elsevier
PD Loprinzi, ME Hall
Physiology & behavior, 2015Elsevier
Background No studies, to date, have examined the concurrent effects of physical activity
and healthy eating on red blood cell distribution width. Purpose Examine the association
between accelerometer-determined physical activity and daily dietary patterns with red
blood cell distribution width (RDW). Methods Data from the 2003–2006 NHANES were used.
4538 participants provided data on the study variables. Physical activity was assessed over
a 7-day period via accelerometry. Dietary behavior was assessed using 2 recall surveys …
Background
No studies, to date, have examined the concurrent effects of physical activity and healthy eating on red blood cell distribution width.
Purpose
Examine the association between accelerometer-determined physical activity and daily dietary patterns with red blood cell distribution width (RDW).
Methods
Data from the 2003–2006 NHANES were used. 4538 participants provided data on the study variables. Physical activity was assessed over a 7-day period via accelerometry. Dietary behavior was assessed using 2 recall surveys. Multivariable linear regression analysis was used to examine the association between physical activity and diet with RDW (outcome variable).
Results
Independent of established CVD risk factors, physical activity (β = − 0.07, p = 0.002), but not diet (β = − 0.05, p = 0.13), was associated with lower RDW. There was no evidence of multiplicative interaction (interaction term: β = 0.02, p = 0.65).
Conclusion
Physical activity, but not diet, was inversely associated with RDW. If confirmed by prospective studies, adoption of regular physical activity may help to prevent cardiovascular disease and mortality via changes in RDW.
Elsevier