Complete 32 intervals of 20 seconds of work followed by ten seconds of rest
where the first 8 intervals are pull-ups,
the second 8 are push-ups,
the third 8 intervals are sit-ups, and finally,
the last 8 intervals are squats.
There is no rest between exercises.
合計たった１５分のワークアウト。
ですが厳しいです！
終わったとき、吐きそうになった人多数・・（汗）