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Results
Results of the recruitment process
The study group were drawn from a population that consisted of 200 predominantly male subjects residing at the ZVAMC NHCU from October 1989 to October 1990. The recruitment period extended from October 1989 to June 100 and the exercise program was conducted from January to October of 1990.
The inclusion and exclusion criteria shown in Table 1 were applied to the study population. Independent ambulation, requiring no supervision with or without an assistive device, was a prerequisite for study consideration. Because of this criterion, 112 of the NHCU residents were excluded from the study. Another 60 residents were omitted because of significant illness, dementia, leg amputation or dependence on an assistive device for ambulation. Of the remaining 28 subjects, 5were excluded because they scored above the predetermined cut off point on the Tinetti mobility assessment scale; it was felt these individuals were too functional to derive significant benefit from the intervention program. Of the 23 remaining subjects, 15 provided informed consent. Because of resource and supervisory limitation only three to four individuals could reasonably participate in the exercise sessions at any one time. Consequently, only 12 of the potential 15 subjects were actually able to participate in the study. Six subjects joined the exercise group and six the control group. After completion of the control protocol, four of the control subjects then participated in and completed the exercise protocol. Of the original subjects in the exercise group two were forced to total of eight subjects in the exercise group protocol. Selected characteristics of the subjects are described in Table 2. No significant differences were noted between the initial profiles of the exercise and control groups, although weight, length of stay and number of major diagnoses demonstrated more variability than age, height and number of scheduled medications.
Baseline Testing of the Exercise and Control Subhects
Baseline data for the participants who completed the study indicated that their initial scores for strength, work capacity and gait were substantially lower than age-specific nomal values recorded in the literature30 31 33.the participants demonstrated deficiencies of 21% for tinetti mobility skills, 62% for gait velocity and 56% for stride length. The exercise and the control groups were not significantly different with regard to their profile of baseline deficiencies in these functional capacities.
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http://www.ncbi.nlm.nih.gov/pubmed/1466871
