Body mass index moderates the effects of portable oxygen transport modality on

Title

Body mass index moderates the effects of portable oxygen transport modality on

Creator

Pohle-Krauza Rachael J; McCarroll Michele L; Pannikottu Kurian; Latta Tiffany N; DiNuoscio David R; Volsko Teresa A; Gothard M David; Krauza Matthew L

Publisher

Journal of cardiopulmonary rehabilitation and prevention

Date

2014
2014-02

Description

PURPOSE: While portable, supplemental oxygen is often necessary for patients with chronic obstructive pulmonary disease (COPD) to retain independence, it may provide functional limitations because of the increased workload imposed. This issue may result in nonuse, creating a need to identify carrying modalities that optimize transport. This study assessed the effects of 3 methods of portable oxygen transport on 6-minute walk distance (6 MWD), rate of perceived exertion (RPE), heart rate (HR), and oxyhemoglobin saturation (SpO2). As weight status is known to impact functional ability in COPD, effects of body mass index (BMI) were also assessed. METHODS: Data were analyzed using the mixed-model procedure to test for effects of transport modality (reference, rolling cart, backpack, shoulderstrap), time (minutes 1-6), BMI, non-overweight, overweight, and interactions of these variables on outcome parameters. RESULTS: A main effect of condition was found for 6 MWD, and an interaction of condition x BMI was found for HR and RPE, and of time x BMI for 6 MWD and SpO2. Participants walked the least distance in rolling cart condition, which was also characterized by the greatest RPE. For the overweight group, HR was least in the reference compared with other conditions; but for the non-overweight group, the opposite pattern was observed. At latter time points, 6 MWD was greater in the non-overweight group, while SpO2 was reduced. CONCLUSION: Results demonstrate that transport modality of portable oxygen exerts differential effects on functional performance in COPD patients and that BMI may moderate underlying physiologic factors that contribute to performance outcomes.

Subject

*Oxygen Inhalation Therapy/instrumentation/methods; *Pulmonary Disease; *Quality of Life; Activities of Daily Living; Aged; Body Mass Index; Chronic Obstructive – Diagnosis; Chronic Obstructive – Metabolism; Chronic Obstructive – Physiopathology; Chronic Obstructive – Psychosocial Factors; Chronic Obstructive – Therapy; Chronic Obstructive/diagnosis/metabolism/physiopathology/psychology/therapy; Drug Delivery Systems – Methods; Drug Delivery Systems – Standards; Drug Delivery Systems/methods/standards; Exercise Test – Methods; Exercise Test/methods; Exertion; Female; Heart Rate; Hemoglobins – Analysis; Human; Humans; Male; Middle Age; Middle Aged; Outcome Assessment; Outcome Assessment (Health Care); Oxygen Consumption; Oxygen Therapy – Equipment and Supplies; Oxygen Therapy – Methods; Oxyhemoglobins/analysis; Physical Exertion; Pulmonary Disease; Quality of Life; Walking – Physiology; Walking/*physiology

Rights

Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).

Pages

62–68

Issue

1

Volume

34

Citation

Pohle-Krauza Rachael J; McCarroll Michele L; Pannikottu Kurian; Latta Tiffany N; DiNuoscio David R; Volsko Teresa A; Gothard M David; Krauza Matthew L, “Body mass index moderates the effects of portable oxygen transport modality on,” NEOMED Bibliography Database, accessed November 29, 2021, https://neomed.omeka.net/items/show/4358.

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