Response [to the Chiappa et al letter to the editor]

Johnson, Michael A. and Mills, Dean E. and Brown, Peter I. and Sharpe, Graham R. (2013) Response [to the Chiappa et al letter to the editor]. Medicine and Science in Sports and Exercise, 45 (1). pp. 214-215. ISSN 0195-9131


We thank Chiappa et al. (4,5) for commending our work (2,3,7), which we reciprocate in light of their thought provoking research that sparked the ensuing trans-Atlantic debate on the effects of inspiratory muscle loading on lactate clearance after exercise. Specifically, despite using similar methodologies, Chiappa et al. (4,5) have twice shown accelerated lactate clearance with inspiratory loading, whereas we have twice shown no effect (2,7). We hypothesized that these discrepancies may be due to interstudy differences in participant endurance training status, as evidenced by higher V˙O2peak and faster blood lactate recovery kinetics in our participants. We were thus intrigued by the authors’ unpublished data showing, in sedentary individuals, no effect of inspiratory loading on lactate clearance. In their accompanying figure, the authors also present novel data showing a significant correlation between maximal inspiratory pressure (MIP) and changes in the area under the blood [Laj] curve with inspiratory loading. This observation informed their hypothesis that the efficacy of inspiratory loading is influenced by inspiratory muscle mass rather than training status.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: No
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Historic - Faculty of Sciences - Department of Nursing (Up to 30 Jun 2013)
Faculty/School / Institute/Centre: Historic - Faculty of Sciences - Department of Nursing (Up to 30 Jun 2013)
Date Deposited: 30 Aug 2016 06:33
Last Modified: 14 Feb 2017 01:19
Uncontrolled Keywords: Bicycling; Humans; Lactic Acid; Male; Rest
Fields of Research (2008): 11 Medical and Health Sciences > 1106 Human Movement and Sports Science > 110602 Exercise Physiology
Fields of Research (2020): 42 HEALTH SCIENCES > 4207 Sports science and exercise > 420702 Exercise physiology
Socio-Economic Objectives (2008): C Society > 92 Health > 9299 Other Health > 929999 Health not elsewhere classified
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