Dec 19, 2024 · HIIT, or high-intensity interval training, can be an efficient, fun way to tackle your cardio workouts, add muscle, and shred serious fat.

Aug 13, 2025 · What does HIIT actually mean? We break down what high intensity interval training does for your workouts—and how to plan to use them to improve cardio health.

Feb 20, 2025 · Our newest training program delivers four 20-minute-or-less workouts that leverage the science-backed high-intensity interval training protocol to torch calories and build muscle, fast.

Feb 20, 2025 · That's why we tapped Gerren Liles, NASM, to lead the Ultimate HIIT program. He's purpose-driven to lead you to the best sweat of your life with these hard-hitting, 15-minute workouts.

Feb 10, 2021 · Beginner HIIT workouts are ideal for everyone. Here are the best to try, plus expert advice from top PTs

Feb 20, 2025 · These trainers are purpose-driven to lead you to the best sweat of your life with their hard-hitting, 20-minute workouts.

Jun 26, 2024 · The 3:1 method is the science-backed way to achieve a true HIIT workout and reap the benefits of the burn

May 2, 2023 · These HIIT workouts use a jump rope and body weight moves that will push your cardio to the next level. Skip as many times as possible using proper form in the allotted time.

Nov 22, 2022 · If you’re looking for a great HIIT routine to pair with this cool down, try any of these 14 HIIT Workouts That will Make You Forget Boring Cardio.

Jan 10, 2024 · You can't expect to have an effective rowing machine workout if you don't understand the proper form. From strapping your feet in to nailing the pull, here's how you can row the right way.