Oval function organically combines the movements of arms and legs, and can coordinate limbs and shape a healthy body when often used. Long-term practice is helpful to improve physical endurance, exercise cardiopulmonary function, calm mind and improve sports ability. The correct way to use the elliptical machine at home is to gently hold the armrest above the instrument with both hands; Step forward with hands and feet in turn; After the movements of hands and feet reach a relatively coordinated level, the thrust and tension of hands are gradually increased, which is very suitable for postpartum recovery. My wife used Sen elliptical machine after giving birth to a baby 160 kg, and it recovered to 120 kg in two months, which was really good.