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Lower Body Cardio Circuit ·
This workout is known as the 4X4 workout. It consists of 4 rounds, each at 4 minutes, 4 exercises & 4sets. I have focused the first round on cardiovascular exercises and the second round is composed of strength exercises. Then the third and fourth rounds are repeated from the first two. What you’ll need: 1) Skipping Rope, 2) Gymboss Timer. The workout Set your timer for 4 rounds …