Vascular Responses to High vs Low Repetition Resistance Exercise Training in Young Men

Inclusion Criteria: * Male * Aged 18-30 years old * Non-obese (Body mass index less than 30 kg/m2) * Non-smoker * Healthy based on questionnaire responses * Resistance trained (Resistance training \> 2 times per week for 2 years, minimum 1 lower body exercise session per week) Exclusion Criteria: * Allergies to milk proteins (whey or casein) * Any acute or chronic illness, cardiac, pulmonary, liver, or kidney abnormalities, uncontrolled hypertension, insulin- or non-insulin dependent diabetes or other metabolic disorders-all ascertained through medical history screening questionnaires * Arthritic conditions * Individuals who consume any analgesic or anti-inflammatory drug(s), prescription or non- prescription, chronically will be excluded * A history of neuromuscular problems * Individuals on any medications known to affect protein metabolism (i.e. corticosteroids, non-steroidal anti-inflammatories, or prescription strength acne medications).