Abstract:
OBJECTIVE:To assess the effects of guidance force (GF) and gait speed (GS) on cardiorespiratory responses and energy cost in subacute dependent ambulatory patients with stroke. DESIGN:Cross-sectional study. SETTING:University rehabilitation hospital. PARTICIPANTS:Patients with subacute stroke (N=10; mean age, 64.50±19.20y) who were dependent ambulators (functional ambulation category ≤2). INTERVENTIONS:Patients participated in cardiorespiratory tests during robot-assisted gait training. Subjects walked at a fixed percentage (50%) of body weight support and various percentages of GF (100%, 80%, and 60%) and GS (1.4 and 1.8km/h). The therapist encouraged patients to maximize their locomotor ability. MAIN OUTCOME MEASURES:During the cardiorespiratory tests, oxygen consumption (V˙o2), heart rate, and respiratory exchange ratio were measured continuously to assess cardiometabolic demands. RESULTS:There were no significant differences in cardiometabolic demands according to GS (1.4 vs 1.8km/h). There were no significant differences in cardiometabolic demands according to GF at a GS of 1.4km/h. However, lowering GF decreased V˙o2 when comparing GFs of 100% (6.89±2.38mL/kg/min), 80% (6.46±1.73mL/kg/min), and 60% (5.77±1.71mL/kg/min) at a GS of 1.8km/h (P=.03). CONCLUSIONS:Lowering the GF of robot-assisted gait training at a higher GS cannot induce a sufficient cardiometabolic demand for subacute dependent ambulatory patients with stroke. This implies that it is important to take the patient's functional ability into consideration when choosing training protocols.
journal_name
Arch Phys Med Rehabiljournal_title
Archives of physical medicine and rehabilitationauthors
Lee SY,Han EY,Kim BR,Chun MH,Lee YKdoi
10.1016/j.apmr.2016.10.021subject
Has Abstractpub_date
2017-04-01 00:00:00pages
695-700issue
4eissn
0003-9993issn
1532-821Xpii
S0003-9993(16)31288-6journal_volume
98pub_type
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