Elliptical Trainer

very little strain is placed on the spine, other joints, and bones.
gives a good aerobic workout and, when the higher resistance settings are employed, additionally contributes to the development of muscle strength.
The user may usually alter the slope and resistance settings on elliptical trainers.
To work more muscle areas and give variety to the workout, some models come with foot pedals that can go both forward and backward.
In order to provide an upper body workout (comparable to the upper body training in cross country skiing), certain elliptical trainer models also incorporate grips or poles.