[Sleep and fine motor skills: the influence of sex and level of physical activity].

Objective: To examine the influence of sleep quality on psychophysiological testing results and autonomic state in university students of both sexes with different habitual physical activity level.

Material And Methods: One hundred and twenty-four 6 year medical students (88 women and 36 men) and 80 sport science students (42 women and 38 men) underwent a comprehensive psychophysiological study, including 7 tests: simple motor reaction, choice reaction, reaction under conditions of interference, reaction to a moving object, critical fusion frequency, as well as static and dynamic (by profile) dexterity tests. Autonomic status was assessed using heart rate variability, sleep quality and alertness were assessed based on self-report, and in athletes, using the Pittsburgh Sleep Quality Questionnaire (PSQI).

[Psychosocial factors influencing the dynamics and sleep quality in medical students].

Objective: To analyze the dynamics and sleep quality in medical students during 2005-2009 years and evaluate possible factors influencing this process.

Material And Methods: The study included 2788 medical 1st, 4th and 6th year students (1919 girls, 869 young men). All participants underwent comprehensive psychophysiological testing.