Partial sleep restriction impairs static postural control in elite judo athletes

Nafaa Souissi, Amira Zouita, Salma Abedelmalek, Khaled Trabelsi, Cain C.T. Clark, Katherine Dziri, Hamdi Chtourou, Nizar Souissi

Research output: Contribution to journalArticlepeer-review


The present study evaluates the effect of partial sleep restriction on postural control in judokas. Fourteen elite-level judokas performed three static postural control tests (the Unilateral Stance (US, on the Right and Left Foot); the modified Clinical Test for the Sensory Interaction on Balance (mCTSIB, on a firm and an unstable surface) stance with the eyes opened and then closed, and the Weight-Bearing Squat test (WBS)) after (i) a reference-normal-sleep-night (RN) and (ii) 4-h of partial sleep restriction at the end (SREN) (i.e., sleep from 22h30 to 03h00) or the beginning (SRBN) (i.e., sleep from 03:00h to 07:00h) of the night. Concerning US, sway velocity increased significantly after SRBN and SREN, in comparison with RN (p < 0.001) and was significantly higher in closed vs. open eyes during SRBN, SREN and RN (p < 0.001). For mCTSIB, sway velocity increased significantly during SBND and SRBN, compared to RN (p < 0.001) and was higher with eyes open than eyes closed in the foam surface during SRBN, SREN and RN (p < 0.0001). For WBS, there were no significant between conditions differences. In conclusion, partial sleep restriction of 4-h may negatively affect the postural control of judokas.

Original languageEnglish
Pages (from-to)(In-Press)
JournalBiological Rhythm Research
Early online date23 Nov 2020
Publication statusE-pub ahead of print - 23 Nov 2020


  • balance
  • Judo
  • postural control
  • Sleep

ASJC Scopus subject areas

  • Physiology
  • Ecology, Evolution, Behavior and Systematics
  • Physiology (medical)

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