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The Ergogenic Effect of Long-term Use of High Dose Salbutamol.

Dickinson, John W., Molphy, John, Chester, Neil, Loosemore, Mike, Whyte, Greg (2014) The Ergogenic Effect of Long-term Use of High Dose Salbutamol. Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine, 24 (6). pp. 474-481. ISSN 1050-642X. (doi:10.1097/JSM.0000000000000076) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:43898)

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Official URL
http://dx.doi.org/10.1097/JSM.0000000000000076

Abstract

OBJECTIVE

Investigate the effect of inhaling 1600 ?g salbutamol for 6 weeks on endurance, strength, and power performances.

DESIGN

Randomized double-blind, mixed-model repeated measures.

PARTICIPANTS

Sixteen male athletes (mean ± SD: age, 20.1 ± 1.6 years; height, 179.9 ± 8.2 cm; weight, 74.6 ± 9.1 kg).

INTERVENTIONS

Participants were assigned to either a placebo inhaler (PLA) or inhaled 1600 ?g salbutamol group (SAL). Over 6 weeks, participants inhaled PLA or SAL and completed 4 training sessions per week that focused on endurance, strength, and power.

MAIN OUTCOME MEASURES

Participants completed the assessments of peak oxygen consumption (V[Combining Dot Above]O2peak), 3-km time trial, vertical jump height, 1 repetition maximum (1RM) bench and leg press, and peak torque knee flexion and extension. Assessments were undertaken at baseline, week 3, and week 6.

RESULTS

Over the 6 weeks, PLA and SAL groups improved V[Combining Dot Above]O2peak (51.7 ± 4.7 vs 56.8 ± 7.1 mL·min·kg; 53.1 ± 6.1 vs 55.0 ± 6.7 mL·min·kg); 3-km running time trial (988.6 ± 194.6 vs 947.5 ± 155.5 seconds; 1040.4 ± 187.4 vs 1004.2 ± 199.4 seconds); 1RM bench press (65.7 ± 15.4 vs 70.3 ± 13.8 kg; 64.3 ± 14.0 vs 72.5 ± 15.3 kg); and leg press (250.0 ± 76.4 vs 282.5 ± 63.6 kg; 217.9 ± 54.0 vs 282.8 ± 51.9 kg). The SAL group did not improve significantly greater in any endurance or strength and power measure when compared with the PLA group.

CONCLUSIONS

Inhaling 1600 µg salbutamol daily over 6 weeks does not result in significant improvements in endurance, or strength and power performances.

CLINICAL RELEVANCE

Athletes using inhaled salbutamol to treat bronchoconstriction during exercise on a daily basis will not gain an advantage over nonasthmatic athletes not using inhaled salbutamol.

Item Type: Article
DOI/Identification number: 10.1097/JSM.0000000000000076
Subjects: R Medicine > RC Internal medicine > RC1200 Sports medicine
Divisions: Divisions > Division of Natural Sciences > School of Sport and Exercise Sciences
Depositing User: John Dickinson
Date Deposited: 27 Nov 2014 12:44 UTC
Last Modified: 16 Feb 2021 12:56 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/43898 (The current URI for this page, for reference purposes)
Dickinson, John W.: https://orcid.org/0000-0002-1824-7402
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