Physical inactivity and poor cardiorespiratory fitness (CRF) are strongly
associated with type 2 diabetes (DM2) and all-cause and cardiovascular morbidity
and mortality. Incorporating physical activity promotion in the management of DM2
has been a pivotal approach modulating the underlying pathophysiology of DM2 of
increased insulin resistance, endothelial dysfunction, and abnormal mitochondrial
function. Although CRF is considered a modifiable risk factor, certain immutable
aspects such as age, race, and gender impact CRF status and is the focus of this
review. Results show that diabetes has often been considered a disease of
premature aging manifested by early onset of macro and microvascular
deterioration with underlying negative impact on CRF and influencing next
generation. Certain races such as Native Americans and African Americans show
reduced baseline CRF and decreased gain in CRF in randomized trials. Moreover,
multiple biological gender differences translate to lower baseline CRF and muted
responsivity to exercise in women with increased morbidity and mortality.
Although factors such as age, race, and sex may not have major impacts on CRF
their influence should be considered with the aim of optimizing precision
medicine.