noun
home workout; working out at home
Casual abbreviation of 自宅 (home) + 筋トレ (strength training), but often used broadly for any exercise done at home. Common in social media and fitness contexts.
ジムに行かなくても、宅トレで十分鍛えられる。
Even without going to the gym, you can get a good workout at home.
最近、宅トレ用の器具を買った。
I recently bought some equipment for home workouts.