TY  - JOUR
PY  - 2022//
TI  - Effect of seat angle when sleeping in a car on quality of sleep and its impact on calculation performance the following day
JO  - International journal of environmental research and public health
A1  - Ogata, Hitomi
A1  - Nishikawa, Tomohiro
A1  - Kayaba, Momoko
A1  - Kaneko, Miki
A1  - Ogawa, Keiko
A1  - Kiyono, Ken
SP  - 
EP  - 
VL  - 19
IS  - 19
N2  - The number of occasions to stay in a car overnight is increasing during disasters; however, the effects on sleep and the impact on daytime functioning are not well understood. We investigated the effect of seat angle when sleeping in a car and its impact on calculation performance the following day. Fifteen healthy males participated in three trials (sleeping in a car with the front seat angled at 45° and 60° in a laboratory and sleeping at home); sleep and calculation performance the following day were compared. Increased wake after sleep onset and decreased slow-wave sleep were observed in the 60° trial, that is, near-vertical, compared with the others. Subjective sleep quality and calculation performance in the 45° and 60° trials were poorer than those in the home trial. The effect of seat angle on sleep was confirmed objectively, but not subjectively, suggesting that a large seat angle might cause sleep impairment.<p />  <p>Language: en</p>
LA  - en
SN  - 1661-7827
UR  - http://dx.doi.org/10.3390/ijerph191912270
ID  - ref1
ER  -