Resistance Training for the Improvement of Glycemic Control in Prediabetes

Inclusion Criteria: * age between 18 and 75 years; * presence of prediabetes (fasting glycemia between 100 and 125 mg/dL or glycated hemoglobin \[A1c\] between 5.7 and 6.4%). Exclusion Criteria: * Have a significant cognitive impairment, * Are non-ambulatory, * Have lower extremity amputation, * Have renal failure, * Have liver disease, * Have uncontrolled hypertension (\>160 mmHg systolic and/or \>100 mmHg diastolic), * Have unstable cardiovascular disease, * Have a history of severe cardiovascular problems, * Have decompensated heart failure, * Have uncontrolled arrhythmias, * Have severe pulmonary hypertension (mean pulmonary arterial pressure \>55 mm Hg), * Have severe and symptomatic aortic stenosis, * Have acute myocarditis, endocarditis, or pericarditis, * Have aortic dissection, * Have Marfan syndrome, * Have unrepaired aortic aneurysm, * Have proliferative diabetic retinopathy, * Have rapidly progressive terminal illness, * Are unable to perform resistance exercise to due preexisting musculoskeletal conditions (e.g., joint pain, chronic injury or tendinopathy), * Are under biguanide (metformin) treatment, but are taking for less than 3 months, * Have taken drugs known to increase the risk of tendon disorders (e.g., tendinopathy and tendon rupture) within the last 6 months. These drugs include, but may not be limited to: fluoroquinolones, glucocorticoids, aromatase inhibitors, anabolic steroids, antiretrovirals, isotretinoin, cephalexin, rituximab, sitagliptin, cep…