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|Title:||Steps That Count: The association between the number and intensity of steps accumulated and fitness and health measures||Authors:||Pillay, Julian David
van Mechelen, Willem
Lambert, Estelle V.
Kolbe-Alexander, Tracy L.
|Keywords:||Ambulatory;Pedometer;Aerobic;Intensity;Steps||Issue Date:||Jan-2014||Publisher:||Human Kinetics Journals||Source:||Pillay, J. D,; Kolbe-Alexander, T. L.; van Mechelen, W. and Lambert, E. V. 2014. Steps That Count: The Association Between the Number and Intensity of Steps Accumulated and Fitness and Health Measures. Journal of Physical Activity and Health. 11 : 10-17.||Abstract:||Background: Pedometer-based recommendations for accumulating steps/d largely focus on volume, with less emphasis on intensity and fitness/health outcomes. We aim to examine this relationship. Methods: A convenience sample (N = 70, 35 men, 32 ± 8yrs) wore a pedometer (4 days). The pedometer classified steps as “aerobic” (≥ 60 steps/minute, minimum duration of 1 minute) or “non-aerobic” (< 60 steps/minute and/or < 1 minute). Estimated maximal oxygen uptake (VO2max), derived from a 12-minute submaximal step-test, and health outcomes: blood pressure (BP), body mass index (BMI), percentage body fat (%BF), and waist circumference (WC) were correlated with pedometer data. Participants were grouped according to number and intensity of steps: LOW (< 5000 steps/d), HIGH-LOW (≥ 5000 steps/d, no aerobic steps), HIGH-HIGH (≥ 5000 steps/d, including some aerobic steps). Analyses of covariance, adjusting for age, gender, and total steps/d were used to compare groups. Results: Average steps/d was 6520 ± 2306. Total steps/d and total time spent accumulating “aerobic” steps (minutes/day) were inversely associated with %BF, BMI, WC, and systolic BP (P < .05). After adjusting for gender and total steps/d, %BF was different between all 3 groups, VO2max was different between the LOW and HIGH-HIGH groups, WC was lower in the HIGH-HIGH versus the other 2 groups (P < .03, respectively). Conclusion: Intensity seems an important factor to consider in steps/d cut-points.||URI:||http://hdl.handle.net/10321/1309||ISSN:||1543-3080|
|Appears in Collections:||Research Publications (Health Sciences)|
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