Jillian recommends metabolic circuit training, which is performing exercises in succession with no rest in between moves. If you really need a rest, she said you can take a one-minute maximum break in between circuits. She also said to add a HIIT interval into each circuit.
Some examples of good exercises for metabolic circuit training include mountain climbers, burpees, and jumping rope.
Image Source: POPSUGAR Photography / Kathryna Hancock