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Table 6 Sample size requirements according to different MCIDs and power levels for walking speed

From: A pilot randomised controlled trial of physical activity facilitation for older adults: feasibility study findings

 

MCID on 4MWT

MCID

0.03 m/s

0.05 m/s

Power 80%

351

128

Power 90%

469

171

  1. MCID minimal clinically important difference, m/s metres per second
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Pilot and Feasibility Studies

ISSN: 2055-5784