Data collection was funded by NIH grant 2R01 AG-006457-29
Total of 70 Subjects
Age Range: 20-90 years old
Age Distribution: 10 subjects/decade (5 men, 5 women)
Gender Distribution: 5 men and 5 women per decade
Exclusion Criteria:
- No walking aides
- No neurological conditions
- No musculoskeletal conditions affecting gait
- No joint replacement within the past year
- No pain affecting gait
- BMI < 30
- No falls in past year
- No dementia (unable to follow instructions).
Tests Administered:
- 400m Walk (comfortable speed, 20m corridor, cones at ends, walk clockwise)
- Baseline Cognitive task (done while sitting, dual task: alphabet and serial counting)
- SAW (7m)
- SAW with dual task (7m; serial subtractions by 3’s)
- TUG (3m fast as possible)
- TUG (3m comfortable speed)
- TUG (7m comfortable speed)
- Compensatory stepping (backwards)
- Walk with dual task (1 min, 20m corridor, comfortable speed, dual task: saying alternate alphabet letters)
- 5x Sit-to-Stand (as fast as possible)
- 360° Turns in place (fast as possible; 1 turn Right, immediately followed by 1 turn Left)
- Sway: Eyes open, firm surface, feet on template
- Sway: Eyes open, foam surface, feet on template
- Sway: Eyes closed, firm surface, feet on template
- Sway: Eyes closed, foam surface, feet on template
- Sway: Eyes closed, feet together, firm surface
- Sway: Eyes closed, one leg stance, firm surface
- Sway: Eyes closed, tandem stance, firm surface
- Sway: Eyes open, feet together, firm surface
- Sway: Eyes open, semitandem stance, firm surface
- Sway: Eyes open, tandem stance, firm surface
- 400m Walk (as fast as possible, 20m corridor, cones at ends, walk clockwise)
What Is Reported:
- In the "in-app" visual report, the normative range that is displayed corresponds to the 5th-95th percentile. This is used because the normative data is often not normally distributed, and using percentiles provides a better representation of the actual range.
- In the CSV exports, we currently report the mean +/- standard deviation of the normative data. This was largely done because user's of the CSV exports may want to compute the z-score for a particular trial, which cannot be done with the 56h-95th percentile.
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