HIIT・短時間トレーニング 【HASfit】20 Min Beginner HIIT Workout for Women & Men for Fat Loss – Dumbbell Standing No Jumping No Repeat Channel:HASfitDownload the FREE HASfit app: Android -- iPhone Instructions for 20 Min Beginner HIIT Workout for Women & ... 2025.08.04 HIIT・短時間トレーニング