The relationship between clinically assessed and free-living walking is unclear. Cadence (steps/min) can be measured accurately under both conditions using modern technologies, thus providing a common measurement metric. Therefore, the purpose of this study was to compare clinical and free-living cadence in older adults.
15 community-dwelling older adults (7 men, 8 women; 61–81 years) completed GAITRite-determined normal and dual-task walks and wore objective monitors for 1 week. Descriptive data included gait speed (cm/sec), steps/day, as well as cadence. Nonparametric tests evaluated differences between normal and dual-task walks and between accelerometer- and pedometer-determined steps/day. Free-living time detected above clinically determined cadence was calculated.
Participants crossed the GAITRite at 125.56 ± 15.51 cm/sec (men) and 107.93 ± 9.41 steps/min (women) during their normal walk and at 112.59 ± 17.90 cm/sec and 103.10 ± 1.30 steps/min during their dual-task walk (differences between walks P < .05). Overall, they averaged 7159 ± 2480 (accelerometer) and 7813 ± 2919 steps/day (pedometer; difference NS). On average, < 10 min/day was spent above clinically determined cadences.
High-functioning, community-dwelling older adults are capable of walking at relatively high cadences (ie, > 100 steps/min). However, the same behavior appears to be uncommon in daily life, even for a minute.
Tudor-Locke is with the Walking Behavior Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA. Barreira is with the Dept of Population Science, Pennington Biomedical Research Center, Baton Rouge, LA. Brouillette, Foil, and Keller are with the Institution for Dementia Research and Prevention, Pennington Biomedical Research Center, Baton Rouge, LA.