Subjective ratings and performance in the heat and after sleep deprivation.
Aviat Space Environ Med
; 84(7): 701-7, 2013 Jul.
Article
en En
| MEDLINE
| ID: mdl-23855065
ABSTRACT
BACKGROUND:
It has been shown that endurance performance after one night of sleep deprivation is not compromised despite the feeling of fatigue and that, in contrast, performance in the heat deteriorates even though people may feel good. However, it is essentially unknown how the estimation of performance capabilities relate to actual performance. We hypothesized that endurance performance in the heat would be overestimated and performance after sleep deprivation would be underestimated. We also hypothesized that jumping performance will be underestimated in the heat.METHODS:
There were 11 fit (VO2peak 52.0 +/- 3.7 ml x kg(-1) x min(-1)) men, familiar with cycling, who performed a 20-min all-out cycling test (AO) and a vertical jump test (VJ) under four different conditions a test trial at 24 degrees C, at 11 degrees C ambient temperature without (C) and with one night of sleep deprivation (CS), and at 31 degrees C (H). The subjects estimated the performance prior to exercise in CS, C, and H.RESULTS:
AO performance was less for H (6.95 +/- 0.36 km) than for C (7.68 +/- 0.29 km) and CS (7.62 +/- 0.33 km). The subjects underestimated AO performance for CS by 1.11 km and C by 0.42 kmin, but not for H. VJ was higher in the H condition, in contrast with subjects' assessment.DISCUSSION:
We conclude that subjective estimates of performance are not in line with actual performance for endurance exercise after sleep deprivation and for explosive exercise in the heat.
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Banco de datos:
MEDLINE
Asunto principal:
Privación de Sueño
/
Análisis y Desempeño de Tareas
/
Fatiga
/
Calor
Tipo de estudio:
Etiology_studies
Límite:
Adult
/
Humans
/
Male
Idioma:
En
Revista:
Aviat Space Environ Med
Año:
2013
Tipo del documento:
Article
País de afiliación:
Países Bajos