Keiko Ogawa
Biographic Data
| ID | 4356292 |
|---|---|
| NAME | Keiko Ogawa |
| GIVEN NAMES | Keiko |
| FAMILY NAME | Ogawa |
| SIGNATURE | OGAWA K |
| AFFILIATIONS | Hiroshima University |
| ORCID | 0000-0001-9251-1884 |
| VERIFIED | Yes |
| TOTAL WORKS | 5 |
| TOTAL CITATIONS | 1 |
| AUTHOR COUNT | 5 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2003 |
| LATEST PUBLICATION YEAR | 2022 |
| H-INDEX | 1 |
Effect of Seat Angle when Sleeping in a Car on Quality of Sleep and Its Impact on Calculation Performance the Following Day
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)…
Effects of using a snooze alarm on sleep inertia after morning awakening
Background Many people use the snooze function of digital alarm clocks for morning awakening, but the effects of a snooze alarm on waking are unclear. We examined the effects of a snooze alarm on sleep inertia, which is a transitional state characterized by reduced arousal and impaired cognitive and behavioral performance immediately upon awakening. Methods In study 1, healthy Japanese university students responded to a sleep survey during a psyc…
Evaluation of Sleep Quality in a Disaster Evacuee Environment
We aimed to evaluate sleep and sleep-related physiological parameters (heart rate variability and glucose dynamics) among evacuees by experimentally recreating the sleep environment of evacuation shelters and cars. Nine healthy young male subjects participated in this study. Two interventions, modeling the sleep environments of evacuation shelters (evacuation shelter trial) and car seats (car trial), were compared with sleep at home (control tria…
Fruit and vegetable consumption and risk of colorectal cancer in Japan: The Miyagi Cohort Study
Objective Adequate fruit and vegetable intake has been suggested to protect against colorectal cancer. However, several recent prospective studies have reported no association. We therefore examined the association between fruit and vegetable intakes and the risk of colorectal cancer in a prospective cohort study in Japan. Design Between June and August 1990, 47 605 Japanese men and women completed a self-administered questionnaire, including a f…
Validation of a food-frequency questionnaire for cohort studies in rural Japan
Objectives: To examine the validity and reproducibility of a self-administered food-frequency questionnaire (FFQ) used for two cohort studies in Japan. Design: Cross-sectional study. Setting: Two rural towns in the Miyagi Prefecture, in north-eastern Japan. Subjects: Fifty-five men and 58 women. Results: A 40-item FFQ was administered twice, 1 year apart. In the mean time, four 3-day diet records (DRs) were collected in four seasons within the ye…
Effects of using a snooze alarm on sleep inertia after morning awakening
Background Many people use the snooze function of digital alarm clocks for morning awakening, but the effects of a snooze alarm on waking are unclear. We examined the effects of a snooze alarm on sleep inertia, which is a transitional state characterized by reduced arousal and impaired cognitive and behavioral performance immediately upon awakening. Methods In study 1, healthy Japanese university students responded to a sleep survey during a psyc…
Validation of a food-frequency questionnaire for cohort studies in rural Japan
Objectives: To examine the validity and reproducibility of a self-administered food-frequency questionnaire (FFQ) used for two cohort studies in Japan. Design: Cross-sectional study. Setting: Two rural towns in the Miyagi Prefecture, in north-eastern Japan. Subjects: Fifty-five men and 58 women. Results: A 40-item FFQ was administered twice, 1 year apart. In the mean time, four 3-day diet records (DRs) were collected in four seasons within the ye…
Fruit and vegetable consumption and risk of colorectal cancer in Japan: The Miyagi Cohort Study
Objective Adequate fruit and vegetable intake has been suggested to protect against colorectal cancer. However, several recent prospective studies have reported no association. We therefore examined the association between fruit and vegetable intakes and the risk of colorectal cancer in a prospective cohort study in Japan. Design Between June and August 1990, 47 605 Japanese men and women completed a self-administered questionnaire, including a f…
Evaluation of Sleep Quality in a Disaster Evacuee Environment
We aimed to evaluate sleep and sleep-related physiological parameters (heart rate variability and glucose dynamics) among evacuees by experimentally recreating the sleep environment of evacuation shelters and cars. Nine healthy young male subjects participated in this study. Two interventions, modeling the sleep environments of evacuation shelters (evacuation shelter trial) and car seats (car trial), were compared with sleep at home (control tria…
Effect of Seat Angle when Sleeping in a Car on Quality of Sleep and Its Impact on Calculation Performance the Following Day
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)…
Effects of using a snooze alarm on sleep inertia after morning awakening
Background Many people use the snooze function of digital alarm clocks for morning awakening, but the effects of a snooze alarm on waking are unclear. We examined the effects of a snooze alarm on sleep inertia, which is a transitional state characterized by reduced arousal and impaired cognitive and behavioral performance immediately upon awakening. Methods In study 1, healthy Japanese university students responded to a sleep survey during a psyc…
Medicine (5 works) · Internal Medicine (4 works) · Audiology (3 works) · Computer Science (3 works) · Psychiatry (3 works) · Psychology (3 works) · Sleep and related disorders (3 works) · Sleep and Wakefulness Research (3 works) · Cohort (2 works) · Cohort study (2 works)