The American College of Sports Medicine recommends that endurance and strengthtraining athletes consume higher levels of daily protein than the standard recommended daily allowance (i.e. 1.2-1.7 grams of protein for each kilogram of body weight, versus 0.8 grams per kilogram per day).
This should include vigorous (jogging) and moderate aerobic exercise (a brisk walk), as well as twice-weekly activities, such as weight training, which maintain or increase muscular strength and endurance.
The prescriptions are tough vigorous exercise six days a week but they provide useful tips on the balance of exercise between aerobics and strength building, and the importance of interval training to avoid burnout and build endurance.