Abstract:
BACKGROUND AND PURPOSE:The purpose of this study was to quantify and compare cardiorespiratory demands imposed during unassisted ambulation and ambulation with various assistive devices in older adults. SUBJECTS:Ten volunteers (3 male, 7 female) who were not dependent on assistive devices for ambulation, with a mean age 60.3 years (SD = 8.4, range = 50-74), participated. METHODS:Immediately after a 5-minute steady-state session with each of the assistive devices tested (standard walker, wheeled walker, and single-point cane), subjects ambulated for 2 minutes at a self-selected speed with each device and unassisted while selected cardiorespiratory and metabolic variables were monitored. RESULTS:Ambulation with the use of a standard walker was shown to require 212% more oxygen per meter than unassisted ambulation and 104% more oxygen per meter than ambulation with a wheeled walker. Ambulation with a standard walker elicited 200% and 98% higher heart rate per meter as compared with unassisted ambulation and ambulation with a wheeled walker, respectively. No difference was detected for physiologic demands between unassisted ambulation and ambulation with a cane. CONCLUSION AND DISCUSSION:The decision to prescribe a wheeled walker versus a standard walker may be clinically important with patients who have impaired cardiorespiratory systems.
journal_name
Phys Therjournal_title
Physical therapyauthors
Foley MP,Prax B,Crowell R,Boone Tdoi
10.1093/ptj/76.12.1313subject
Has Abstractpub_date
1996-12-01 00:00:00pages
1313-9issue
12eissn
0031-9023issn
1538-6724journal_volume
76pub_type
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