Protein and endurance exercise

INTERVENTION: Exercise training: During the 12‐week exercise training program participants will complete three exercise sessions weekly. In the training programs continuous endurance exercise sessions will be alternated with interval exercise sessions. Protein supplementation: All participants will be randomly assigned to the protein or placebo (isocaloric carbohydrate) group. The protein or placebo supplements will be ingested after each training session and each day before sleep. CONDITION: Endurance exercise, Protein supplementation ; ; PRIMARY OUTCOME: VO2max (indirect calorimetry) SECONDARY OUTCOME: endurance performance (10‐km time trial) ; ; muscle function (isokinetic dynamometry)haematological and biochemical variables (blood) ; ; body composition (dual x ray absorptiometry) ; ; habitual food intake (repeated 24‐h recalls) ; ; habitual physical activity (wrist worn accelerometer) ; INCLUSION CRITERIA: • Male • Age 18 and 40 years • BMI < 30 kg/m2 • Untrained or recreationally active (i.e. performing sport activities on a non‐competitive basis for a maximal duration of 6 hours per week). • VO2max = 55 ml?kg‐1?min‐1