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Titre : | Rollator Use Does Not Consistently Change the Metabolic Cost of Walking in People With Chronic Obstructive Pulmonary Disease (2012) |
Auteurs : | Kylie Hill ; Thomas Dolmage ; Lynda Woon |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (2012/6, 2012) |
Article en page(s) : | pp. 1077-1080 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Mobilité réduite ; Rééducation et réadaptation |
Mots-clés: | Lung diseases ; obstructive ; Mobility limitation ; Walking ; Bronchopneumopathies obstructives |
Résumé : |
Objectives To (1) evaluate whether the use of a rollator changed metabolic cost during a controlled walking task, and (2) explore relationships between the difference in dyspnea and metabolic cost associated with rollator use. Design Single-group interventional study in which patients completed 2 corridor walks: 1 without and 1 with a rollator, at the same individualized constant speed. Setting Rehabilitation hospital. Participants Patients with chronic obstructive pulmonary disease (N=15; 10 men; median age [interquartile range; IQR]=69 [12]y; forced expiratory volume in 1 second=42 [20]% predicted). Intervention Rollator use. Main Outcome Measures Oxygen uptake, converted to metabolic equivalent units (METs), and minute ventilation were measured throughout both tasks using a portable gas analysis system; dyspnea and arterial oxygen saturation (SpO2) were collected on completion. Results Median [IQR] walk speed [IQR] was 48 (10)m/min. Walking with a rollator, compared with walking without, reduced dyspnea (median [IQR]=1.0 [1.5] vs 2.0 [2.0]; P=.01) without changing energy expenditure (median [IQR]=2.8 [1.2] vs 3.2 [0.9] METs; P=.65), minute ventilation (median [IQR]=30.3 [9.6] vs 27.7 [9.9]L/min; P=.50), or SpO2 (median [IQR]=92 [8]% vs 94 [10]%; P=.41). The association between the reduction in dyspnea and any difference in energy expenditure related to rollator use was of borderline significance (rs=.50; P=.06). Six of the 8 participants who experienced a reduction in dyspnea also demonstrated a reduction in the metabolic cost of walking. Conclusions The mechanism responsible for the amelioration in dyspnea during rollator-assisted walking is multifactorial. A reduction in the metabolic cost of walking may play a part in some, but not all, patients. |
Disponible en ligne : | Oui |
En ligne : | http://www.archives-pmr.org/article/S0003-9993%2812%2900035-4/abstract |