麦肯齐患有线粒体疾病，这种疾病会让人丧失大量能量，并损伤心脏、肝脏、骨骼肌、呼吸系统和大脑等部位的细胞，从而使人衰弱。
McKenzie has mitochondrial disease, a debilitating condition that deprives the body of energy and damages cells in the heart, liver, skeletal muscles, respiratory systems and brain.
没有达到此程度的肌力训练，肌肉还是会有衰弱的可能。
Did not achieve this level of strength training, muscle weakness, or there will be possible.
应用推荐