3. Satisfy your outstanding obligations. You are responsible for clearing all outstanding obligations, (e.g., library fines, student accounts) before registering for classes. 4. Register for classes. See dates, times and options for Summer 2017 registration Â».
The Russian twist is a seated exercise. After a five-minute warm-up of rhythmic activities, such as walking or light cycling, sit on the floor or on a mat with your knees bent, your heels on the floor and your toes pointing up.
Your muscles operate in three basic movements: eccentric, concentric and isometric. Weight training and most cardiovascular exercises incorporate both eccentric and concentric motions. Concentric motions occur when your muscles are shortened and eccentric motions involve the lengthening of your muscles.