Strength:Strengthening the muscles that support your knee will reduce stress on your knee joint. Strong muscles help your knee joint absorb shock. 力量:增强肌肉力量有助于强壮膝关节,减轻膝关节所受压力。强壮的肌肉有助于膝关节吸收震动。 Flexibility:Stretching the muscles that you strengthen is importan...