Every 5-minutes for 15-minutes

10-15 DB squats @ tempo 30×1
8-12 DB stiff-legged deadlifts @ tempo 30×1
10-15 DB bicep curls

Tempo 30×1 = 3-sec down, no pause, fast up, 1-sec pause.

DB weight. Use the heaviest DBs available that you can do for unbroken sets with good form.