Teleoanticipation in all-out short-duration cycling.
Br J Sports Med
; 45(2): 114-9, 2011 Feb.
Article
en En
| MEDLINE
| ID: mdl-19679576
OBJECTIVE: to investigate the effect of all-out cycling test duration on indices of power, anaerobic lactic energy metabolism, perceived exertion and mood. METHODS: nine physically active men undertook four all-out cycling tests of 5, 15, 30 or 45 s from seated stationary start on an ergometer fit with power cranks. The participants completed a Profile of Mood States questionnaire before each test and indicated perceived exertion immediately post-test (Borg 6-20 scale). Indices of anaerobic lactic metabolism were determined from blood lactate concentrations. RESULTS: pacing strategy was apparent in the 45-s tests with lower peak (p<0.01) and mean power in the initial 10 s compared to the 5- and 15-s tests (p<0.05). The first 15 s of the 30- and 45-s tests revealed lower fatigue indices compared to the 15-s tests (p<0.05) indicating some pacing in the 30-s tests. Perceived exertion increased with duration, with no difference between the 15- and 30-s tests (p>0.05). Extravascal lactate generation (reflecting exercising muscle lactate production) explained 59% of the variance in perceived exertion. There was no effect of knowledge of test duration on mood states or total mood disturbance (p>0.05). CONCLUSIONS: an all-out pacing strategy was apparent for at least up to 15 s, with indicators of dampened power in both 30 and 45 s sprints. Reduced power at the start of all-out long-duration sprints support a central control of at least initial pacing strategy.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Ciclismo
/
Ejercicio Físico
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Ácido Láctico
/
Afecto
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Metabolismo Energético
/
Anticipación Psicológica
Tipo de estudio:
Etiology_studies
Límite:
Adult
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Humans
/
Male
Idioma:
En
Revista:
Br J Sports Med
Año:
2011
Tipo del documento:
Article
Pais de publicación:
Reino Unido