Table 1.

Summary of FinnDiane data showing the effect of different components of leisure-time physical activity (LTPA) and development of chronic complications or mortality (6–11).

LTPA	Cardiovascular disease	Diabetic nephropathy	Diabetic retinopathy	MORTALITY
				ALL	CVD
TOTAL	+	-	-	+	-
Intensity	+	+	-	+	+
Frequency	+	+	+	+	+
Duration	+	-	-	+	-

LTPA was assessed by a self-report questionnaire, whereby exercise intensity was considered as low (no self-reported subjective shortness of breath and no sweating), moderate (a moderate degree of self-reported subjective shortness of breath and sweating), high (a high degree of subjective shortness of breath and sweating). Exercise frequency was considered as low (fewer than one session per week), moderate (one to two sessions per week), high (more than two sessions per week). Exercise duration was defined according to duration of a single session of physical activity as low (≤30 min/session), moderate (31–60 min/session) and high (>60 min/session).