1. Runs quietly 2.Physical therapy for arms and legs 3. Useful training for paralysis muscle 4. Aerobic exercise Mini Auto Exercise Bike1. With 5 speeds:30rp/m,40rp/m,50rp/m,60rp/m,70rp/m,can be adjusted accordingly2. Time:5 different choices for time-setting ,3 min,6min,9min,12min ,15min3. Rotate & reverse rotate: it can be adjusted when tatating reversely,meanwhile it wil pause fro 2 seconds ...