Российская академия наук


EFFECTS OF LONG-TERM ISOLATION ON HEALTHY MAN’S NIGHT SLEEP



страница274/848
Дата10.12.2019
Размер1.98 Mb.
1   ...   270   271   272   273   274   275   276   277   ...   848
EFFECTS OF LONG-TERM ISOLATION ON HEALTHY MAN’S NIGHT SLEEP

Zavalko I.M.1, Rasskazova E.I.1,2, Kovrov G.V.1

1 - I.M. Sechenov First Moscow State Medical University, 2 – M.V. Lomonosov Moscow State University, i1rus@mail.ru


It is well-known, that sleep is an antistress adaptation factor, and human capacity for work depends on sleep quality. Also, excessive workload could lead to sleep disorders.

The aim of this research was to study sleep changes during ground simulation of an interplanetary manned flight “Mars-520”.

Night polysomnography of 6 healthy men was recorded before, 4 times during (6 weeks after the onset, 2 weeks before “Mars landing” (33th week of isolation), 2 weeks after the landing part of the experiment (41 week) and 6 weeks before the end (67 week)) and after the end of the 520-days isolation. Recordings scoring was performed among the standard criteria. We compared the sleep parameters (after transformation to normal distribution) between the periods of the experiment by repeated measure ANOVA. If ANOVA demonstrated significant difference (p<0.05), we performed pairwise comparison by Tukey's test. Additionally, we analyzed distribution of nights with low sleep efficiency in the periods by proportion test. Cutoff for sleep efficiency was 25% quartile.

Sleep efficiency decreased, sleep latency prolonged and delta-sleep latency shortened, especially 1,5 months before the end of the isolation. Frequency of nights with low sleep efficiency augment on the eve of the important for the crew events: landing simulation and the end of the isolation. Two weeks after Mars landing frequency of nights with low efficiency significantly decreased.

Thus, anticipation of significant event during long-term isolation might be an additional cause of sleep disturbances, mainly sleep quality diminution and prolongation of sleep latency, in healthy men.

The research is supported by a grant RFH project № 110601052а.


Каталог: news
news -> Умеренные когнитивные нарушения у больных с сосудистым поражением головного мозга 14. 01. 11 нервные болезни
news -> 15-й международный медицинский форум «качество и безопасность оказания медицинской помощи» нижегородская ярмарка россия, Нижний Новгород
news -> Сборник материалов
news -> Разработка технологии вкусоароматических добавок с применением сенсорных технологий
news -> «казұму 85 жыл: жетістіктері мен келешегі» халықаралық ғылыми-тəжірибелік конференция аясындағы «клиникалық фармация: халықаралық ТƏжірибе мен қазақстанның денсаулық сақтаудағы даму ерекшеліктері»
news -> Программа международной научно-практической конференции 14-15 апреля 2016 г. Курск 2016
news -> Российская академия наук отделение физиологических наук


Поделитесь с Вашими друзьями:
1   ...   270   271   272   273   274   275   276   277   ...   848


База данных защищена авторским правом ©zodorov.ru 2017
обратиться к администрации

    Главная страница