A short training programme for the rapid improvement of both aerobic and anaerobic metabolism |
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Authors: | Gil Rodas Josep L Ventura Joan A Cadefau Roser Cussó Joan Parra |
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Institution: | (1) Departamento de Ciencias Fisiologicas, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Facultad de Medicina, Universidad de Barcelona, C/ Casanova 143, 08036 Barcelona, Spain e-mail: jparra@medicina.ub.es Tel.: +34-93-4021919; Fax: +34-93-4035260, ES;(2) Centre d'Estudis d'Alt Rendiment Esportiu (CEARE), Secretaria General de l'Esport, 08950 Esplugues de Llobregat, Spain, ES |
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Abstract: | The aim of this study was to evaluate the changes in aerobic and anaerobic metabolism produced by a newly devised short training
programme. Five young male volunteers trained daily for 2 weeks on a cycle ergometer. Sessions consisted of 15-s all-out repetitions
with 45-s rest periods, plus 30-s all-out repetitions with 12-min rest periods. The number of repetitions was gradually increased
up to a maximum of seven. Biopsy samples of the vastus lateralis muscle were taken before and after training. Performance
changes were evaluated by two tests, a 30-s all-out test and a maximal progressive test. Significant increases in phosphocreatine
(31%) and glycogen (32%) were found at the end of training. In addition, a significant increase was observed in the muscle
activity of creatine kinase (44%), phosphofructokinase (106%), lactate dehydrogenase (45%), 3-hydroxy-acyl-CoA dehydrogenase
(60%) and citrate synthase (38%). After training, performance of the 30-s all-out test did not increase significantly, while
in the maximal progressive test, the maximum oxygen consumption increased from mean (SD) 57.3 (2.6) ml · min−1 · kg−1 to 63.8 (3.0) ml · min−1 · kg−1, and the maximum load from 300 (11) W to 330 (21) W; all changes were significant. In conclusion, this new protocol, which
utilises short durations, high loads and long recovery periods, seems to be an effective programme for improving the enzymatic
activities of the energetic pathways in a short period of time.
Accepted: 30 March 2000 |
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Keywords: | Human skeletal muscle Oxidative enzymes Oxygen uptake Anaerobic performance Lactate |
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