Want to give your child a head start on lifelong fitness? Consider children's sports and other kid-friendly physical activities. With your encouragement and support, chances are a few sports will spark your child's interest.
The lower-body muscles are primarily targeted on elliptical trainer, including the: 1  Buttocks (gluteus maximus) For greater the butt-firming effect, increase the incline. 2  Front of thighs (quadriceps) The elliptical trainer really works the quadriceps. 3  However, thankfully it isnât as noticeable as on the stationary bike.
Report Abuse. Radial muscles and circular muscles. When the radial muscles contract the size of the pupil is increased. When the circular muscles contract the size of the pupil is decreased.Changing the size of the pupil controls the amount of light entering the eye.eport Abuse. Radial muscles and circular muscles. When the radial muscles contract the size of the pupil is increased. When the circular muscles contract the size of the pupil is decreased.