van der Touw, Tom; Sturdy, G; Jenkins, S; Hillman, D; Eastwood, P

Author(s)

van der Touw, Tom

Sturdy, G

Jenkins, S

Hillman, D

Eastwood, P

Publication Date

2003

Abstract

The anaerobic threshold has been used as a marker to identify optimal work load for whole body endurance training. To date there has been no convincing evidence of significant anaerobic metabolism during inspiratory muscle training in COPD. Its absence suggests (a) training loads may have been inadequate; or (b) inspiratory muscles produce insufficient lactate to be detected. We examined the relationship between inspiratory load and arterial blood lactate concentration ([La]) during progressive inspiratory threshold loading (PTL) before and after an 8 week program of high intensity inspiratory threshold training in seven COPD patients (FEV1<53% predicted). During PTL, load was increased by 10cm H2O/minute until exhaustion. [La] was measured at the end of each load via a radial arterial catheter.

Citation

Respirology, 8(Supplement s2), p. A45-A45

ISSN

1440-1843

1323-7799

Link

https://hdl.handle.net/1959.11/10062

Publisher

Wiley-Blackwell Publishing Asia

Title

Lactate Production During Inspiratory Threshold Loading in COPD

Type of document

Conference Publication

Entity Type

Publication

Author(s)	van der Touw, Tom Sturdy, G Jenkins, S Hillman, D Eastwood, P
Publication Date	2003
Abstract	The anaerobic threshold has been used as a marker to identify optimal work load for whole body endurance training. To date there has been no convincing evidence of significant anaerobic metabolism during inspiratory muscle training in COPD. Its absence suggests (a) training loads may have been inadequate; or (b) inspiratory muscles produce insufficient lactate to be detected. We examined the relationship between inspiratory load and arterial blood lactate concentration ([La]) during progressive inspiratory threshold loading (PTL) before and after an 8 week program of high intensity inspiratory threshold training in seven COPD patients (FEV1<53% predicted). During PTL, load was increased by 10cm H2O/minute until exhaustion. [La] was measured at the end of each load via a radial arterial catheter.
Citation	Respirology, 8(Supplement s2), p. A45-A45
ISSN	1440-1843 1323-7799
Link	https://hdl.handle.net/1959.11/10062
Publisher	Wiley-Blackwell Publishing Asia
Title	Lactate Production During Inspiratory Threshold Loading in COPD
Type of document	Conference Publication
Entity Type	Publication

Lactate Production During Inspiratory Threshold Loading in COPD

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