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. Author manuscript; available in PMC: 2011 Sep 28.
Published in final edited form as: J Gerontol A Biol Sci Med Sci. 2008 Dec;63(12):1335–1343. doi: 10.1093/gerona/63.12.1335

Table 1.

Subject characteristics*

Background measures Mean±SD (or %)
Age (yrs) 76.2±4.2
Gender (% women) 58.8 %
Body-mass-index (kg/m2) 26.6±3.7
Mini-Mental State Exam 28.8±1.2
Education (yrs) 13.6±3.8
Fell in past year (%) 26.7 %
SF-36 Health 69.4±17
PASE 111.6±67.4
Frenchay Activities Index 31.2±5.4
Charlson Comorbidity Index 0.8±1
Prescription medications (#) 3.7±2.4
Cognitive Function Executive function index 99.2±10.7
Attention index 98.8±13.0
Memory index 99.4±12.2
Visual-spatial function index 97.1±15.9
Affect Activities-specific Balance Confidence Scale 92.2±9.7
Geriatric Depression Scale 4.9±4.5
Trait Anxiety Inventory 33.4±8.6
State Anxiety Inventory 31.5±9.9
Performance-based measures of Mobility Dynamic Gait Index 22.8±1.5
Berg Balance Score 54.1±2.3
Timed Up and Go (sec) 9.5± 1.7
Usual-Walking Measures of Gait Gait Speed (m/sec) 1.3±0.2
Average Swing Time (%) 37.6±2.3
Swing Time Variability (%) 2.2±1.0
*

All subjects were fully independent in activities of daily living (ADL’s) (a perfect score on the Barthel scale) and the Frenchay score indicated that subjects did not have major functional deficits or disabilities. Scores on the PASE reflected a level of physical activity consistent with that of healthy older adults. Average scores on the Dynamic Gait Index and the Berg Balance Scale were near perfect and the Timed Up and Go was also consistent with good mobility and low fall risk. Average values of the cognitive function indices were all close to 100.0, the mean value expected for a healthy cohort.