There is one clinical trial.
Introduction Sedentary behaviour refers to activities of low energy expenditure in lying and sitting positions. Examples include driving, watching television, playing cards, puzzles and working on a computer. Studies suggest that between 60% of older people world-wide reported sitting for more than four hours per day. Sedentary behaviour increases as older people become older, have problems with cognition and when they are very ill. Excessive participating in sedentary behaviours is associated with an increased risk of heart problem, cancer death and diabetes. However, we do not know for certain whether or not participating in sedentary behaviour could cause poorer cognition. What does the study hope to achieve? This feasibility study will test whether the main study, which is planned for later, is workable with regards to the following: - Will reducing sedentary behaviour using our online health coaching intervention (WALC-R) be acceptable to research participants and caregivers? - How many participants can be successfully recruited to the future trial? - What is the rate of adverse event associated with proposed study intervention? Method: This is a 13-week randomised feasibility study. We will randomly assign study participants to either the health coaching intervention (WALC-R) or receiving health guidelines on recommended physical activity. We aim to recruit 40 participants aged 50 and over who have been diagnosed with Mild Cognitive Impairment. The future main study will be larger and test whether: • 'WALC-R', an online intervention designed to reduce participation in sedentary behaviour can improve cognitive function in older people with Mild Cognitive Impairment compared with providing an information sheet about physical activity.
Description: Acceptability of study intervention will be qualitatively assessed at the end of week 13 via semi-structured interviews with study participants.
Measure: Acceptability of intervention assessed by semi-structured interviews Time: Week 13Description: Proportion of target recruit sample achieved throughout study duration.
Measure: Recruitment rate Time: Week 13Description: Proportion of participants recruited into the study who completed the intervention.
Measure: Completeness of intervention Time: Week 13Description: Proportion of people recruited into the study who sustained adverse events.
Measure: Adverse event rate Time: Week 13Description: Sedentary behaviour and physical activity time per day will be recorded using ActivPAL inclinometer.All participants will be required to wear the ActivPAL continuously for at least 7 days at baseline that will measure habitual sedentary behaviour and walking activity each day (Edwardson et al., 2017). The inclinometer will record how many minutes per day each participant is sedentary and engages in light, moderate and vigorous physical activities. A recording is made of each 60-second period (called an 'epoch'), and this is classified as being sedentary or light, moderate or vigorous physical activity. The researcher will collect data on the total minutes of sedentary behaviour per day, number of disruptions in sedentary behaviour and total time spent in physical activity (minutes per day in light, moderate and vigorous activity).
Measure: Device measured sedentary behaviour Time: Week 1 and 13Description: Participants will complete a survey questionnaire about weekly time spent participating in selected sedentary behaviours such as watching television and sitting (Rosenberg et al., 2010). The options for respondents include 'None', <=15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6+ hours.
Measure: Self reported sedentary behaviour assessed using the Sedentary Behaviour Questionnaire Time: Week 1 and 13Description: The researcher will test participant's verbal fluency (cognitive function) using the Controlled and Oral Word Association Test. The scores represent the number of correct words provided in 60 seconds. Higher scores represent better verbal fluency ability and vice versa.
Measure: Verbal fluency assessed using the Controlled and Oral Word Association Test (COWAT) Time: Week 1 and 13Description: The participants will self- rate their health using five dimensions provided (mobility, self-care, usual activities, pain/discomfort and anxiety/depression) and five response levels: no problems, slight, moderate, severe, unable to/extreme problems. The EQ- Visual Analogue Scale(VAS) records the respondent's overall current health (0-100). Higher VAS scores represent best perceived health and vice versa.
Measure: Perceived quality of life using the EuroQol five-dimension questionnaire (EQ-5D) Time: Week 1 and 13