Comparison of two waist-mounted and two ankle-mounted electronic pedometers

Document Type

Article

Publication Date

8-13-2005

Abstract

This study compared two ankle-mounted pedometers [StepWatch 3 (SW-3Ankle) and Activity Monitoring Pod 331 (AMPAnkle)] and two waist-mounted pedometers [New Lifestyles NL-2000 (NLWaist) and Digiwalker SW-701 (SW-701Waist)] under controlled and free-living conditions. In part I, 20 participants walked on a treadmill at speeds of 27–107 m min−1. Actual steps were counted with a hand counter. In part II, participants performed leg swinging, heel tapping, stationary cycling, and car driving. In part III, 15 participants wore all pedometers for a 24 h period. The SW-3Ankle displayed values that were within 1% of actual steps during treadmill walking at all speeds. The other devices underestimated steps at slow speeds but all gave mean values that were within ±3% of actual steps at 80 m min−1 and above. The SW-3Ankle registered some steps during heel tapping, leg swinging, and cycling, while the AMPAnkle was only responsive to leg swinging. During car driving no devices recorded more than eight steps, on average. Over 24 h, the AMPAnkle recorded 18% fewer steps than the SW-3Ankle (P

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Publication Title

European journal of applied physiology

DOI

10.1007/s00421-005-0018-3

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