Table 1. Demographic, Clinical, and Biomechanical Descriptions.
| Mean (SD) or N (%) | |
|---|---|
| N | 717 |
| Age | 77.9 (5.3) |
| Sex (% Female) | 458 (63.9%) |
| Race (% non-white) | 154 (21.5%) |
| High school graduate | 642 (89.5%) |
| Daily alcohol use | 455 (62.8%) |
| Vision (≤ 20/50 Snellen) | 61 (8.4%) |
| MMSE score | 27.1 (2.6) |
| TMT-B (seconds) (n = 679) | 141.2 (77.6) |
| slow gait (≤0.67 m/s) | 83 (11.6%) |
| fast gait (>1.33 m/s) | 41 (5.8%) |
| Depression (CES-D-R score) | 50.5 (9.9) |
| Urinary Incontinence | 293 (40.4%) |
| Neuropathy | 77 (10.7%) |
| ADL Difficulty | little 103 (14.3%) a lot 44 (6.1%) |
| Berg Balance Scale ≤45 | 90 (12.6%) |
| Fall history | 262 (36.7%) |
| Dual Task Ability | 441 (63%) |
| Height (m) | 1.63 (0.10) |
| Weight (kg) | 74.1 (19.7) |
| Moment of Inertia | AP: 71.3 (20.4) |
| Ia (kg- m2) | ML: 72.1 (20.6) |
MMSE: Mini-mental status exam
TMT-B: time to complete Trailmaking Test Part B
CES-D-R: Center for Epidemiological Studies Depression scale, Hopkins revision.
Ia: moment of inertia of the body about the ankle
*Leg press strength from 1 RM (maximum repetition) trial. Leg press data could not be collected from some participants due to various contraindications.
ADL: Activities of Daily Living
Fall history: self-report of any fall in the previous year Dual Task Ability: Ability to complete serial subtractions by 3