@article{ref1,
title="Circadian rhythms in competitive sabre fencers: internal desynchronization and performance",
journal="Chronobiology international",
year="1985",
author="Reinberg, A. and Proux, S. and Bartal, J. P. and Levi, F. and Bicakova-Rocher, A.",
volume="2",
number="3",
pages="195-201",
abstract="During a 7-10 day span, circadian rhythms of sleep-wake, self-rated fatigue and mood, oral temperature, eye-hand skill and right and left hand grip strength were investigated in eight subjects: five males (21-28 years of age), members of the French sabre fencing team selected for the 1984 Olympic Games in Los Angeles, and three females (19-26 years of age) practicing fleuret (foil) fencing as a sports activity. On the average six measurements/day/variable/subject were performed. The single cosinor method showed that a circadian rhythm was detectable for only 26 out of the 56 time series (46.4%). Power spectrum analysis gave almost the same figure (19 out of 48: 39.5%) with regard to rhythms with tau = 24 hr indicating that with one exception (subject JFL) rhythms were internally desynchronized including differences tau between right and left hand grip strength rhythms for three subjects. <br><br>RESULTS suggest: (a) a physiologic synchronization of circadian rhythms may be a predictor of good performance; (b) however, internal desynchronization as shown previously may be a trivial phenomenon and thus does not imply in itself alterations of either health or performance; (c) chronobiologic methods should be recommended for a better understanding of changes in performance by those participating in competitive and other sports.<p /><p>Language: en</p>",
language="en",
issn="0742-0528",
doi="",
url="http://dx.doi.org/"
}