| Acute supra-therapeutic oral terbutaline administration has no ergogenic effect in non-asthmatic athletes. | |
| | |
MedLine Citation:
|
PMID: 22767151 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
This study aimed to investigate the effects on a possible improvement in aerobic and anaerobic performance of oral terbutaline (TER) at a supra-therapeutic dose in 7 healthy competitive male athletes. On day 1, ventilatory threshold, maximum oxygen uptake [Formula: see text] and corresponding power output were measured and used to determine the exercise load on days 2 and 3. On days 2 and 3, 8 mg of TER or placebo were orally administered in a double-blind process to athletes who rested for 3 h, and then performed a battery of tests including a force-velocity exercise test, running sprint and a maximal endurance cycling test at Δ50 % (50 % between VT and [Formula: see text]). Lactatemia, anaerobic parameters and endurance performance ([Formula: see text] and time until exhaustion) were raised during the corresponding tests. We found that TER administration did not improve any of the parameters of aerobic performance (p > 0.05). In addition, no change in [Formula: see text] kinetic parameters was found with TER compared to placebo (p > 0.05). Moreover, no enhancement of the force-velocity relationship was observed during sprint exercises after TER intake (p > 0.05) and, on the contrary, maximal strength decreased significantly after TER intake (p < 0.05) but maximal power remained unchanged (p > 0.05). In conclusion, oral acute administration of TER at a supra-therapeutic dose seems to be without any relevant ergogenic effect on anaerobic and aerobic performances in healthy athletes. However, all participants experienced adverse side effects such as tremors. |
| | |
Authors:
|
Anthony M J Sanchez; Fabio Borrani; Marie Amélie Le Fur; Anais Le Mieux; Virgile Lecoultre; Guillaume Py; Christophe Gernigon; Katia Collomp; Robin Candau |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-7-6 |
Journal Detail:
|
Title: European journal of applied physiology Volume: - ISSN: 1439-6327 ISO Abbreviation: - Publication Date: 2012 Jul |
Date Detail:
|
Created Date: 2012-7-6 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 100954790 Medline TA: Eur J Appl Physiol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Faculté des Sciences du Sport, Université Montpellier Sud-de-France, 700 avenue du Pic Saint Loup, 34060, Montpellier, France, anthony.sanchez@univ-montp1.fr. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The effects of beta acids from hops (Humulus lupulus) on mortality of Varroa destructor (Acari: Varr...
Next Document: Relationship between thigh muscle mass and augmented pressure from wave reflections in healthy adult...