Treadmill walking uphill whether to hurt the knee depends on the length of exercise and exercise intensity, time is short, intensity is small, generally will not have obvious damage to the knee joints; time is long, the intensity of the knee joints may have a certain degree of damage.
Treadmill climbing walk when the knee was more semi-flexed posture, the load on the knee joints relative to walking on a flat surface is greater, more prone to injury.
So if the time of exercise hill climbing walking is not long, generally will not have obvious damage to the knee joint, if the exercise time is longer, often repeated practice, may accelerate the degeneration of the knee joint, knee joint injury, causing joint pain.
Knee discomfort, it is recommended to consult a doctor in a timely manner, improve the relevant examination, under the guidance of the doctor.