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Titolo:
IMAGINATION OF DYNAMIC EXERCISE PRODUCED VENTILATORY RESPONSES WHICH WERE MORE APPARENT IN COMPETITIVE SPORTSMEN
Autore:
WUYAM B; MOOSAVI SH; DECETY J; ADAMS L; LANSING RW; GUZ A;
Indirizzi:
CHARING CROSS & WESTMINSTER MED SCH,DEPT MED,FULHAM PALACE RD LONDON W6 8RF ENGLAND CHARING CROSS & WESTMINSTER MED SCH,DEPT MED LONDON W6 8RF ENGLAND UNIV TUCSON,DEPT PSYCHOL TUCSON AZ 00000 INSERM,U94 F-69500 BRON FRANCE
Titolo Testata:
Journal of physiology
fascicolo: 3, volume: 482, anno: 1995,
pagine: 713 - 724
SICI:
0022-3751(1995)482:3<713:IODEPV>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
CEREBRAL BLOOD-FLOW; MOTOR-PERFORMANCE; MENTAL ACTIVITY; VOLUNTARY; IDEATION; BRAIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
B. Wuyam et al., "IMAGINATION OF DYNAMIC EXERCISE PRODUCED VENTILATORY RESPONSES WHICH WERE MORE APPARENT IN COMPETITIVE SPORTSMEN", Journal of physiology, 482(3), 1995, pp. 713-724

Abstract

1. The cardiorespiratory response to imagination of previously performed treadmill exercise was measured in six competitive sportsmen and six non-athletic males. This was compared with the response to a control task (imagining letters) and a task not involving imagination ('treadmill sound only'). 2. In athletes, imagined exercise produced increases in ventilation which varied within and between subjects. The mean maximal increase (11.7 l min(-1)) was approximately 20% of the ventilatory response to actual exercise. This was primarily due to treadmill speed-related increases in respiratory frequency (mean maximal increase, 14.8 breaths min(-1)) and resulted in significant reductions in end-tidal P-CO2 (mean maximal fall, 7 mmHg). These effects were greater (P< 0.01) than any observed during the control tasks. 3. Changes in heart rate (mean increase, 12 beats min(-1)) were not significantly different from those observed during the control tasks (P > 0.2). 4. In non-athletes, imagination of exercise produced no changes in cardiorespiratory variables. No significant differences were detected in subjective assessments of movement imagery ability between athletes and non-athletes (P = 0.17). 5. This study demonstrates that ventilatory effects,when observed, are specific to imagination of exercise. The greater likelihood of generating ventilatory responses in highly trained athletes, experienced in 'rhythmic' sports, may be related to awareness of breathing and its role in exercise imagination strategy. A volitional component of the response cannot be discounted.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 04:39:06