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. 2011 Sep;8(7):994-1003.
doi: 10.1123/jpah.8.7.994.

Ambulatory activity associations with cardiovascular and metabolic risk factors in smokers

Brad R Julius  1 , B Ann Ward, James H Stein, Patrick E McBride, Michael C Fiore, Lisa H Colbert
Affiliations

Ambulatory activity associations with cardiovascular and metabolic risk factors in smokers

Brad R Julius et al. J Phys Act Health. 2011 Sep.

Abstract

Background: We examined the association between ambulatory activity and biological markers of health in smokers.

Methods: Baseline data from 985 subjects enrolled in a pharmacologic smoking cessation trial were examined. Body size, blood pressure, total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), total and small LDL particles, LDL size, high density lipoprotein cholesterol, triglycerides (TG), C-reactive protein (CRP), creatinine, fasting glucose, and hemoglobin A1c were assessed in relation to pedometer-assessed ambulatory activity, as was the odds of metabolic syndrome and CRP > 3 mg/L. Effect modification by gender was examined.

Results: Only waist circumference was lower with greater steps/day in the men and women combined (P(trend) < 0.001). No other significant relationships were noted in men, while women with ≥ 7500 steps/day had lower weight, BMI, CRP, TG, total, and small LDL particles compared with those with < 7500 steps/day. These women also had 62% and 43% lower odds of metabolic syndrome and elevated CRP, respectively, compared with the less active women. Adjustment for BMI attenuated all the associations seen in women.

Conclusions: Greater ambulatory activity is associated with lower levels of metabolic and cardiovascular risk factors in female smokers which may, in part, be mediated by a reduction in BMI.

Trial registration: ClinicalTrials.gov NCT00332644.

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References

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