Table 4

Summary table of results showing relation between sedentary behaviour and fitness

Type of Study

Number of Studies

Number of participants

Narrative recommendation and main findings


RCT

0

Intervention

1

76

Reductions in sedentary behaviour lead to increased fitness.

Longitudinal

2

561

One study showed no association whereas one study showed higher musculoskeletal fitness in those watching < 2 hrs of TV per day.

Cross sectional

12

17227

> 2 hrs of screen time per day is associated with better VO2max scores, better musculoskeletal and cardiorespiratory fitness scores.


Total of all studies

15

17864

Those watching less than 2 hours of TV a day showed higher results for fitness testing and more favourable bone health.

Mean Downs and Black score = 20.6 (± 2.1), Level 3 evidence.


Tremblay et al. International Journal of Behavioral Nutrition and Physical Activity 2011 8:98   doi:10.1186/1479-5868-8-98

Open Data