Resolution: standard / high
Figure 1.
The four trajectory classes of leisure time physical activity: consistently active,
consistently inactive, decreasers, and increasers. Physical Activity Longitudinal Study 1981–2002/04. (n = 884).
Barnett et al. International Journal of Behavioral Nutrition and Physical Activity 2008 5:57 doi:10.1186/1479-5868-5-57
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