The concrete operational stage is the third stage of Piaget's theory of cognitive development. This stage, which follows the preoperational stage, occurs between the ages of 7 and 11 (preadolescence) years, and is characterized by the appropriate use of logic.
Bicycle riding can relieve the pain and inflammation of osteoarthritis. Osteoarthritis is a degenerative form of arthritis that results from wear and tear to the knee joint and knee cartilage over time. Your knees, hips, shoulders and hands are most susceptible to osteoarthritis damage. If you experience osteoarthritis, you can engage in low-impact exercises like bicycle riding. There are many types of bicycle riding, however, and some may be better than others for arthritis treatment.
An exercise bike primarily works your leg muscles including your quadriceps, hamstrings, and calves. In addition an exercise bike requires work from your hip flexors (muscles on front of your hips), gluteals, and your abdominals to help stabilize your pelvis and spine.However, the most important muscle an exercise bike works is your heart.n addition an exercise bike requires work from your hip flexors (muscles on front of your hips), gluteals, and your abdominals to help stabilize your pelvis and spine. However, the most important muscle an exercise bike works is your heart.