INS and type 2 diabetes mellitus: The prevalence of type 2 diabetes mellitus (T2DM) is increasing globally, and sub-Saharan Africa (SSA) is projected to have the greatest estimated increase compared with all other regions by 2045.1 Within SSA, South Africa (SA) has the highest prevalence of T2DM, with the latest national prevalence for adult men and women at 8% and 13%, respectively.2 Extensive evidence reports an inverse association between physical activity (PA) and T2DM risk.3–5 Studies have shown that PA of any intensity positively influences glucose regulation and insulin sensitivity in a dose–response manner.6 7