overloading of heart muscle

例句：

1. 1. The patient's heartmuscle was severely overloaded due tothe prolonged illness.
   由于长期疾病，患者的心脏肌肉严重超负荷。
2. 2. The doctoradvised the patient to avoidheavy lifting and reduce his heartmuscle overload.
   医生建议病人避免重体力劳动，减轻他的心脏肌肉超负荷。
3. 3. During exercise, it is important tomonitor the heart muscle overload to preventinjuries.
   在锻炼时，监测心脏肌肉超负荷非常重要，以防止受伤。