Effect of portable non-invasive ventilation and environmental conditions on everyday activities

Bajema, Anna, Swinbourne, Anne L., Gray, Marion, and Leicht, Anthony S. (2017) Effect of portable non-invasive ventilation and environmental conditions on everyday activities. Respiratory Physiology & Neurobiology, 243. pp. 55-59.

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Abstract

The current study examined the effect of non-invasive ventilation (NIV) within environments of differing temperature and humidity on several physiological and perceptual responses while performing six activities of daily living (i.e. putting on shirt/shoes/trousers, vacuuming, hanging towels, and walking on a treadmill). Sixteen healthy participants completed the activities of varying difficulty within four experimental conditions: with and without NIV; and in temperate (22 °C, 40% relative humidity) and hot-humid environments (32 °C, 70% relative humidity). Comparisons of physiological responses between conditions were examined via repeated measures ANOVAs. Overall, NIV resulted in similar physiological and perceptual responses within all environmental conditions for healthy participants. Further, NIV use increased heart rate during the most strenuous task (29.5 ± 12.7 vs. 22.8 ± 12.0 bpm, p = 0.008) indicating NIV use may stress cardiovascular functioning during moderate-high intensity activities. Tropical conditions did not alter physiological or perceptual responses during everyday tasks with NIV use by healthy adults. Future investigations examining the independent and combined impacts of task intensity, extreme environments and NIV use will clarify the benefits of NIV for healthy and clinical populations.

Item ID: 49490
Item Type: Article (Research - C1)
ISSN: 1878-1519
Keywords: non-invasive ventilation; hot-humid; tropical; physiological responses; everyday activities; healthy participants;
Funders: Health Research Council of New Zealand (HRCNZ)
Projects and Grants: HRCNZ 10/473
Date Deposited: 04 Jul 2017 23:05
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1106 Human Movement and Sports Science > 110602 Exercise Physiology @ 70%
11 MEDICAL AND HEALTH SCIENCES > 1116 Medical Physiology > 111603 Systems Physiology @ 30%
SEO Codes: 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920115 Respiratory System and Diseases (incl. Asthma) @ 30%
92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920408 Health Status (e.g. Indicators of Well-Being) @ 70%
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