tilising an app-based behavioural intervention to increase the light exposure of office workers: A pilot randomised controlled trial

Not Applicable

Completed

• Conditions: Improving the light exposure of office workers; Not Applicable

• Registration Number: ISRCTN27558763
• Lead Sponsor: niversity of Oxford

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2021-07-13
• Study Completion: 2021-12-20
• Last Update Posted: 9 January 2023

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 44

Inclusion Criteria

Current participant inclusion criteria as of 08/03/2022:
1. Aged 25-45 years
2. Healthy
3. Office worker (work sitting at a desk indoors for the working day)
4. Living within the Oxford Ring Road, full-time (Monday-Sunday), in August/September/October/November/December 2021
5. Working within the Oxford Ring Road, full-time (9-5”, Monday-Friday), in August/September/October/November/December 2021
6. Android/iOS smartphone user (with a consistent internet connection indoors and outdoors)
7. Able to read and understand English

Previous participant inclusion criteria as of 07/10/2021:
1. Aged 25-45 years
2. Healthy
3. Office worker (work sitting at a desk indoors for the working day)
4. Living within the Oxford Ring Road, full-time (Monday-Sunday), in August/September/October/November 2021
5. Working within the Oxford Ring Road, full-time (9-5”, Monday-Friday), in August/September/October/November 2021
6. Smartphone user (with a consistent internet connection indoors and outdoors)
7. Able to read and understand English

Previous participant inclusion criteria:
1. Aged 25-45 years
2. Healthy
3. Office worker (work sitting at a desk indoors for working day)
4. Living within the Oxford Ring Road, full-time (Monday-Sunday), in August/September 2021
5. Working within the Oxford Ring Road, full-time (9-5”, Monday-Friday), in August/September 2021
6. Working from home, full-time (9-5”, Monday-Friday), in August/September 2021
7. Android smartphone user (with a consistent internet connection indoors and outdoors)
8. Able to read and understand English

Exclusion Criteria

Current participant exclusion criteria as of 08/03/2022:
1. Generalized Anxiety Disorder, Panic Disorder, Social Anxiety Disorder, PTSD (GAD-7; =10)
2. Major Depression (PHQ-9; =10)
3. Suicidal ideation with intent or attempted suicide within past 2 months
4. Formal diagnosis of a mental health disorder
5. Extreme early and late chronotypes (µMCTQ; =2 or =6)
6. Shift or night worker in the past 3 months
7. Formal diagnosis of a sleep disorder
8. Drug abuse (DAST-10; =3)
9. Alcohol use disorder (AUDIT; =16)
10. Caffeine dependence (SDS; =4)
11. Sleep medication
12. Smoker/vape user
13. Antidepressants (e.g., serotonin reuptake inhibitors)
14. Anxiety medication
15. Photosensitive medication
16. Benzodiazepines or non-benzodiazepine hypnotics
17. Beta/alpha blockers
18. Underweight and obese BMI (less than 18.5 or greater than 29.9 kg/m²)
19. Significant medical or surgical condition
20. Planning major surgery in the next 6 months
21. Significant pain or physical distress
22. Serious head injury in the past year
23. Neurological disorder
24. Neurodevelopmental disorder
25. Physical disability preventing moderate exercise (e.g., going for a 30-min walk)
26. Eye disease
27. Life expectancy <1 year
28. Menopausal
29. Lactating or pregnant
30. Significant recent, or foreseeable life events (death in family, moving to a new house, divorce)
31. Undergone light therapy in the last month/plan to have light therapy within the next 6 months
32. Received/receiving psychological treatment for a sleep disorder
33. Currently taking part in a study involving a drug or behavioural intervention/ will be taking part in such a study in the next 3 months
34. Knowing of someone who is participating/has participated in the data collection aspect of this study

Previous participant exclusion criteria as of 07/10/2021:
1. Generalized Anxiety Disorder, Panic Disorder, Social Anxiety Disorder, PTSD (GAD-7; =10)
2. Major Depression (PHQ-9; =10)
3. Suicidal ideation with intent or attempted suicide within past 2 months
4. Formal diagnosis of a mental health disorder
5. Extreme early and late chronotypes (µMCTQ; =2 or =6)
6. Shift or night worker in the past 3 months
7. Formal diagnosis of a sleep disorder
8. Drug abuse (DAST-10; =3)
9. Alcohol use disorder (AUDIT; =16)
10. Caffeine dependence (SDS; =4)
11. Sleep medication
12. Smoker/vape user
13. Antidepressants (e.g., serotonin reuptake inhibitors)
14. Anxiety medication
15. Photosensitive medication
16. Benzodiazepines or non-benzodiazepine hypnotics
17. Beta/alpha blockers
18. Underweight and obese BMI (less than 18.5 or greater than 29.9 kg/m²)
1

Study & Design

• Study Type: Interventional
• Study Design: Not specified