Excerpts — Physiological Aspects of Sport Training and Performance With Web Resource-2nd Edition
A relatively new noninvasive method to investigate changes in muscle architecture is becoming popular. The use of ultrasonography to image muscle structure has proven to be a valid and reliable method of examining changes in muscle.
It has been demonstrated that exercise training in previously sedentary individuals has beneficial effects in terms of reducing the incidence of upper respiratory tract infections (URTI) (Nieman et al. 1990; Nieman, Hensen, et al. 1993).
The two most common whole proteins used in dietary supplements are casein and whey.