“肌肉拉伤”常见的英文表达是 muscle strain。
“strain”作为名词时，有“拉伤；扭伤；过度劳累”等含义，“muscle strain”即指肌肉因过度拉伸或用力不当而造成的损伤。
例句：
He suffered a muscle strain in his leg during the basketball game.（他在篮球比赛中腿部肌肉拉伤了。 ）
If you don't warm up properly before exercise, you're more likely to get a muscle strain.（如果不做好运动前的热身，你就更容易肌肉拉伤。 ）