Inclusion criteria T2DM patients  Adults aged >18 years old Diagnosed with T2DM by a physician or an HbA1C above 6.5%  Exclusion criteria T2DM patients  Diagnosed with type 1 diabetes mellitus (T1DM) Diagnosed with pregnancy diabetes Diagnosed with latent autoimmune diabetes in adults (LADA) Physical disabilities that obstruct the normal PA pattern (e.g. amputations, paralysis) Cognitive disabilities that obstruct daily functioning (e.g. dementia, psychological disorders) Other conditions affecting the normal PA pattern (e.g. heart failure NYHA class 3 and 4, chronic respiratory diseases (COPD stage 4), end stage nonalcoholic fatty liver disease, end stage renal failure, cancer, hospitalized) Pregnancy or pregnancy <1 year ago Participating in a physical activity intervention  Inclusion criteria control participants  - Adults aged > 18 years old  Exclusion criteria control participants  Diagnosed with T2DM Diagnosed with T1DM Diagnosed with pregnancy diabetes Diagnosed with LADA Physical disabilities that obstruct the normal PA pattern (e.g. amputations, paralysis) Cognitive disabilities that obstruct daily functioning (e.g. dementia, psychological disorders) Other conditions affecting the normal PA pattern (e.g. heart failure NYHA class 3 and 4, chronic respiratory diseases (COPD stage 4), end stage nonalcoholic fatty liver disease, end stage renal failure, cancer, hospitalized) Pregnancy or pregnancy <1 year ago Participating in a physical activity intervention