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Int J Sports Med 2002; 23(5): 353-360
DOI: 10.1055/s-2002-33143
Training and Testing

© Georg Thieme Verlag Stuttgart · New York

Effects of Inspiratory Muscle Training Upon Recovery Time During High Intensity, Repetitive Sprint Activity

L.  M.  Romer1 , A.  K.  McConnell2 , D.  A.  Jones1
  • 1Sports Medicine and Human Performance Unit, School of Sport and Exercise Sciences, The University of Birmingham, Edgbaston, Birmingham, UK
  • 2Department of Sport Sciences, Brunel University, Osterley Campus Isleworth, Middlesex, UK
Further Information

Publication History



Accepted after revision: 9. November 2001

Publication Date:
16 August 2002 (online)

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Abstract

The present study examined the influence of specific inspiratory muscle training (IMT) upon recovery time during repetitive sprint activity, as well as the physiological and perceptual responses to fixed intensity shuttle running. Using a double-blind placebo-controlled design, 24 male repetitive sprint athletes were assigned randomly to either an IMT (n = 12) or placebo (n = 12) group. The self-selected recovery time during a repetitive sprint test and the physiological response to submaximal endurance exercise were determined. Following completion of baseline and pre-intervention measures, the IMT group performed 30 inspiratory efforts twice daily against a resistance equivalent to 50 % maximum inspiratory mouth pressure (MIP) for 6 wk. The placebo group performed 60 breaths once daily, for 6 wk, at a resistance equivalent to 15 % MIP, a load known to elicit negligible changes in respiratory muscle function. The IMT group improved total recovery time during the repetitive sprint test by 6.2 ± 1.1 % (mean ± SEM) above the changes noted for the placebo group (p = 0.006). Blood lactate and perceptual responses to submaximal exercise were also significantly attenuated following IMT (p ≤ 0.01). These data support existing evidence that specific IMT attenuates the blood lactate and perceptual responses to submaximal endurance exercise. In addition, the present study provides new evidence that IMT improves recovery time during high intensity, intermittent exercise in repetitive sprint athletes.

Key words

Dyspnoea - lactate - ergogenic - multi-sprint - respiratory muscle

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L. M. Romer

John Rankin Laboratory of Pulmonary Medicine · Department of Preventive Medicine · University of Wisconsin

504 Walnut Street · Madison · WI 53705 2397 · USA ·

Phone: +1 (608) 265 2085

Fax: +1 (608) 262 8235

Email: romerlm@hotmail.com

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