CPK brings an efficient 10-minute upper body workout designed to torch your shoulders, arms, chest, and back. This mini burn features 6 targeted exercises combining weighted movements with bodyweight challenges, all structured with 45 seconds of work and 15 seconds of rest. The unique challenge: keep your dumbbells in hand through the first 5 exercises without setting them down, maximizing time under tension for serious muscle building and calorie burning. Equipment needed: Light dumbbells, exercise mat