Normal subjects 20 male and 20 female subjects between the ages of 18 and 35 (10 for the summer experiment and 10 for the winter experiment). Females will be asked to participate after menstruation ends.
Conditions
Interventions
Blowing power condition (summer and winter): 3 hours a day at 30-50% of maximum output (air volume 0.9 m^3/min, air speed 1.2 m/sec x 4 fans) from bedtime One day under control conditions (no airflow
Sponsors
Ritsumeikan University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Adult men and women with normal circadian rhythms will be included. The following exclusion criteria were also established.
Exclusion criteria
Exclusion criteria: Exclusion Criteria: No physician-diagnosed sleep disorder and healthy both physically and mentally. -No diagnosis of coldness or circulatory system disease. -The patient must not have a sensitive skin or be allergic to alcohol, as the application of the electrodes may cause skin irritation. Not be able to make a decision on whether or not to participate in the study by themselves.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| A total of three sleep experiments will be conducted per subject using fire-retardant bedding and a fire-retardant comforter (summer comforter in summer and winter comforter in winter) for three nights:the first night without air circulation (first night effect, condition for acclimation to measuring equipment, etc.;experimental data will not be used), the second night without air circulation, and the third night with air circulation. In the condition without air blowing (standard condition), it is not necessary to make a quilt dome inside the bed by air blowing, and the subject can choose a towelette according to his/her preference. The conditions without and with air blowing will be conducted randomly by the subjects in order to consider the sequential effect. Sleep experiments will be conducted three times with at least one night between conditions, because the effect of the airflow may appear on the next night if the sleep experiments are conducted on consecutive nights. Sleepwear will be provided and socks will not be worn. All subjects will be set at 25-28 degrees Celsius in the summer and 25-28 degrees Celsius in the winter. However, if the room temperature is colder than 25 degrees Celsius during the nighttime in the summer air blowing experiment, both cooling and heating will be used.Assessment items include polysomnogram, body movement, skin temperature, subjective survey, and other items related to sleep and its recovery, as well as measurement of environmental temperature. | — |
Countries
Japan
Contacts
Public Contactshima okada
Ritsumeikan University Science & Engineering
Outcome results
None listed