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Precision and accuracy of an ankle-worn accelerometer-based pedometer in step counting and energy expenditure.[J].Randal C. Foster;Lorraine M. Lanningham-Foster;Chinmay Manohar;Shelly K. McCrady;Lana J. Nysse;Kenton R. Kaufman;Denny J. Padgett;James A. Levine.Preventive Medicine.2005, 3
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The utility of the Digi-Walker step counter to assess daily physical activity patterns.[J].GREGORY J. WELK;JEROME A. DIFFERDING;RAYMOND W. THOMPSON;STEVEN N. BLAIR;JIM DZIURA;PETER HART.Medicine & Science in Sports & Exercise.2000, 9 Su
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Objective Monitoring of Physical Activity Using Motion Sensors and Heart Rate.[J].Patty S. Freedson;Kelly Miller.Research Quarterly for Exercise and Sport.2000, sup2