Table 1. PGR scores for Days 1, 2, and 3 (intra-rater analysis).
| PGR scores (mean ± SD) | ||||
|---|---|---|---|---|
| Day 1 | Day 2 | Day 3 | ||
| 10-m walking time (sec) | ||||
| Comfortable speed | 13.2 ± 3.4 | 13.1 ± 2.9 | 13.0 ± 2.6 | |
| Maximum speed | 11.7 ± 4.1 | 11.5 ± 3.4 | 11.3 ± 3.6 | |
| Gait cadence (steps/min) | ||||
| Comfortable speed | 86.6 ± 14.4 | 87.0 ± 13.4 | 87.8 ± 13.3 | |
| Maximum speed | 97.2 ± 12.6 | 97.8 ± 12.8 | 98.6 ± 16.4 | |
| Peak absolute value of acceleration vectors (m/sec2) | ||||
| Comfortable speed | 33.2 ± 9.4 | 35.0 ± 8.2 | 34.6 ± 8.4 | |
| Maximum speed | 44.3 ± 8.2 | 45.6 ± 9.4 | 45.1 ± 8.1 | |
Values are expressed as mean ± standard deviation. PGR: portable gait rhythmogram; SD: standard deviation