Effects of short-term exposure to whole-body vibration on wakefulness level
| Autor: | Kaori Nagatomi, Yuka Satou, Hideo Ando, Michiko Hoshiko, Yoshie Yamaguchi, Junko Muramoto, Mihoko Mori, Tatsuya Ishitake, Makoto Nakiri, Yoshiyasu Tsuji, Kunio Hara |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Adult
Male medicine.medical_specialty Post exposure Health Toxicology and Mutagenesis Polysomnography Acute effect Electroencephalography Audiology Vibration Japan Surveys and Questionnaires medicine Whole body vibration Humans Wakefulness Pain Measurement medicine.diagnostic_test Significant difference Public Health Environmental and Occupational Health Anesthesia Case-Control Studies Perception Vibration exposure Psychology psychological phenomena and processes |
| Zdroj: | Industrial health. 45(2) |
| ISSN: | 0019-8366 |
| Popis: | To investigate the relationships between whole-body vibration and changes in wakefulness, We measured the change of a subjective wakefulness level and electroencephalogram (EEG). Subjects are ten healthy male university students. The subjects were exposed to whole-body vibration with frequency (10 Hz) and acceleration level (0.6 ms(-2) r.m.s.) for 12 min in the seated position. Subjective wakefulness level was evaluated using the questionnaire of VASS (Visual Analog Sleepiness Scale) and KSS (The Kwansei Gakuin Sleepiness Scale). For the electroencephalogram (EEG) measurement, AAT (Alpha Attenuation Test) which repeats three times each opened and closed eye for 1 min was conducted. Wakefulness levels were defined as the ratio of mean alpha-wave power during eyes closed versus eyes opened. VASS and KSS increased and subjective level of wakefulness decreased from pre- to post exposure in all subjects, regardless of vibration exposure. The objective wakefulness levels of AAT were reduced at the post-exposure test in all subjects. In the case with exposure to whole-body vibration was a significant difference from the case without exposure to whole-body vibration. It is suggested that a short-term exposure to whole-body vibration may cause a reduction of wakefulness level. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|