Subjective sleep problems
Conditions
Interventions
Participants will consume 100 mL of a lactic acid drink daily for 12 weeks.
Sponsors
Institute of Community Life Sciences Co., Ltd.
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: (1) Individuals who are able to attend the regularly scheduled measurement sessions. (2) Individuals aged 60 years or older at the time of informed consent. (3) Individuals who perceive that they have sleep problems, such as difficulty falling asleep after going to bed, shallow sleep, or frequent awakenings during the night. (4) Individuals who have the capacity to provide consent, have received a sufficient explanation of the purpose and procedures of the study, fully understand the information provided, and voluntarily agree to participate by signing the written informed consent form.
Exclusion criteria
Exclusion criteria: (1) Individuals who have participated in another clinical study within the past three months prior to providing informed consent. (2) Individuals who habitually consume yogurt or lactic acid drinks four or more days per week. (3) Individuals with allergies to milk or soy. (4) Individuals currently undergoing treatment for diabetes. (5) Individuals who are otherwise judged to be ineligible by the principal investigator.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Psychomotor vigilance task (PVT) | — |
Secondary
| Measure | Time frame |
|---|---|
| Digit Symbol Substitution Test (DSST), Fatigue level (VAS), Pittsburg Sleep Questionnaire Index (PSQI), Gastrointestinal Symptom Rating Scale (GSRS) | — |
Countries
Japan
Contacts
Public ContactTetsu Kinoshita
Institute of Community Life Sciences Co., Ltd Institute of Social Epidemiology
Outcome results
None listed