回視聴
45 sec work 15 sec rest Interval Timer (45/15 interval timer) up to 60 reps
1 Minute Interval Timer
Forget Timebirds Portable Timer! Try This Interval Timer Available on Amazon!
What Happens to Your Body If You Start Boxing
40 MINUTES of TABATA SONGS! (Playlist + Timer)
Extreme Kick Boxing Nonstop Songs For Fitness & Workout 140 Bpm / 32 Count
Most EFFECTIVE 30 Minute Boxing Heavy Bag HIIT Workout
BEGINNER BOXING SPARRING!