Healthy adults / University-affiliated student-athletes
Conditions
Interventions
Creatine supplementation (0.35g/kg/day for 5 days)+ 6 hours of sleep restriction for 5 days
Placebo + 6 hours of sleep restriction for 5 days
Control group (8 hours of sleep for 5 days)
Sponsors
Sendai University
Tohoku University
Eligibility
Sex/Gender
Male
Inclusion criteria
Inclusion criteria: 1)Healthy male university student athletes 2)Individuals who are capable of making an independent decision regarding participation in the study 3)Non smokers 4)Individuals who have not used prescription sleep medications or over-the-counter sleep aids on a long-term basis (more than 1 year)
Exclusion criteria
Exclusion criteria: 1)Individuals with allergies to standard foods or the test food 2)Individuals with suspected or diagnosed severe gastrointestinal, hepatic, renal, cardiovascular, hematological, or endocrine disorders, or malignant neoplasms; those with a history of such diseases; those currently receiving medical treatment; or those with ongoing medical conditions 3)Individuals with sleep disorders such as insomnia who have previously received treatment 4)Individuals who, during the habituation period (5 days), complied with controlled bedtime/wake-time schedules and wore an activity tracker to record sleep, and who experienced sleep duration of less than 6 hours on three or more days 5)Individuals who consumed excessive amounts of alcohol during the habituation period (5 days)* 6)Individuals who regularly use, or plan to use during the study period, supplements, medications, or health foods containing creatine (including Foods for Specified Health Uses, Foods with Function Claims, or Nutrient Function Foods) 7)Individuals who are unable to abstain from alcohol consumption during the experimental period (Days 0~5) 8)Individuals who participated in another study within one month prior to the start of this study, or who plan to participate in another similar study after providing consent for this study *Definition of excessive alcohol consumption: Alcohol intake of one 'go' of sake or more, three or more times per week, equivalent to: /One medium bottle of beer /One double shot of whisky /0.6 'go' of shochu
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Exercise load test, Muscle strength evaluation. | — |
Secondary
| Measure | Time frame |
|---|---|
| Attention test, The simple reaction time test, Subjective fatigue assessment, Cognitive function assessment | — |
Countries
Japan
Contacts
Public ContactRuinian Jin
Sendai University Graduate School of Sports Science
Outcome results
None listed