Sedentary behaviour interventions

Question 1

What is sedentary behaviour?

Answer 1

Any waking behaviour characterised by low energy expenditure (<1.5METs) in a sitting or reclining posture

Question 2

What are the determinants of SB?

Answer 2

Likely to be different to MVPA. Youth: age; weight status; availability of play and sports equipment in playgrounds; longer breaks and lunches; safe places to cross roads. Older adults: age; retirement status; obesity; health status; mode of transport; type of housing; cultural opportunities; neighbourhood safety; places to rest

Question 3

Why might PA interventions inadvertently increase SB?

Answer 3

People satisfied they have completed their active minutes

Question 4

What do the identified determinants for SB show?

Answer 4

Who rather than why more likely to engage in SB

Question 5

Why is SB so difficult to amend?

Answer 5

Motivation to engage in SB is likely autonomous

Question 6

How do autonomous and controlled motivation to limit screen time correlate with resultant screen time?

Answer 6

Both are positively correlated, but autonomous motivation has stronger association

Question 7

What was ATLAS?

Answer 7

An app intervention to prevent obesity by increasing PA and reducing screen time and sugar sweetened beverages

Question 8

How did ATLAS attempt to carry out its aims?

Answer 8

Enhancing satisfaction of basic psych needs during school sports using autonomy supportive strategies; develop self-regulatory skills to increase PA by goal-setting; provided info regarding consequences of screen time; provided info on self-regulation strategies

Question 9

What was the aim of Switch-off 4 Healthy Minds?

Answer 9

To reduce recreational screen time

Question 10

What is the recommendations for adolescent recreational screen time?

Answer 10

Less than 2 hours a day

Question 11

How did S4HM attempt to carry out its aims?

Answer 11

Interactive seminar; eHealth messaging; behavioural contract; parental newsletters

Question 12

What were the results of S4HM?

Answer 12

Screen time decreased; autonomous motivation to decrease screen time was strongest factor; messages and seminars were deemed most important by teenagers

Question 13

How can SB be decreased in patients with RA?

Answer 13

Replace with light PA and MPA; have a sedentary break of standing or LPA

Question 14

How are SB breaks associated with health?

Answer 14

+vely associated with cardio-metabolic health; -vely associated with adoposity

Question 15

What non-financial incentives were used in an intervention to reduce sitting?

Answer 15

Clothing; recipe books; shop gift vouchers; chance to win an iPad Mini

Question 16

How was behaviour change measured in the incentive-based study to decrease SB?

Answer 16

Points were accrued for each minute of MVPA and reduced SB; capped at 30mins/day; points swapped for incentives

Question 17

What levels of SB and PA were advised to reach/ decrease to?

Answer 17

PA >=150 mins/wk; SB <=150mins/wk

Question 18

What were other components of the incentive-based study to decrease SB?

Answer 18

Initial motivation interview: views on benefits of increasing MVPA and reducing SB; confidence in aims; interviewer supports in generating strategies. Text messaging: encouraging participants by prompting goal setting; proving strategies by prompting review of behaviour goals and providing feedback

Question 19

What was the aim of the incentive-based study to decrease SB?

Answer 19

Enhance self-efficacy and intrinsic motivation, thus reducing SB