Physical Performance of Healthy Men Exposed to Long Exercise and Sleep Deprivation
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Data
2012-06-11Autor
Dąbrowski, Jan
Ziemba, Andrzej
Tomczak, Andrzej
Mikulski, Tomasz
Metadane
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Abstract
Introduction: There are only few data on influence of combined effects of long lasting exercise and sleep deprivation
on physical performance.
Objective: To evaluate the influence of 36 hours of sleep deprivation combined with 20 hours of intermittent exercise
on selected physiological and psychomotor indices.
Methods: Eleven participants of survival camp exercised without sleep and were examined three times (C – before
effort, M – after 24 hours, E – after 36 hours) for submaximal heart rate, multiple choice reaction time (MCRT), motion
coordination, handgrip force differentiation and shooting accuracy.
Results: There were no significant differences in MCRT throughout the whole experiment. Heart rate showed significant
decrease between C and M (P < 0.004) and C and E (P < 0.037) trials. Shooting was performed only twice and was significantly
less accurate in E than in C (6.71±0.42 vs. 7.71±0.31 respectively, P < 0.001). Handgrip force differentiation was not different
between the measurements (C – 6.2±1.8%, M – 5.3±0.9%, E – 4.1±0.9%). Number of mistakes in rotational test increased
significantly from session C to M (4.95±0.59 vs. 6.76±0.70; P < 0.001) and C to E (4.95±0.59 vs. 6.90±0.90; P < 0.01).
Conclusions: One sleepless night combined with the long lasting exercise caused decrease in heart rate, shooting
performance and motion coordination, however it did not affect psychomotor performance and handgrip sensitivity. Such data
can be a result of adaptation to adrenergic stimulation unevenly alters phenomena linked with central and peripheral fatigue
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