Table 4

 The absolute percentage error for step number and cadence for the activPAL physical activity monitor at the various walking speeds

Speed (m/s)Actual step no.(step number)% ErrorActual cadence(step number/min)% Error
Values are means±1 SD.
Treadmill
    0.9498±420.94±0.4793±80.93±1.05
    1.12555±440.59±0.27103±70.86±0.86
    1.33590±480.53±0.28110±71.08±0.94
    1.56622±450.47±0.27118±71.09±0.96
    1.78666±450.66±0.60127±71.06±0.71
Outdoor
    Normal608±440.37±0.47121±81.11±0.97
    Slow653±400.42±0.37112±81.01±0.63
    Fast579±410.47±0.43128±71.03±0.94