Which of the following is NOT considered a primary form of cardio training?

• A. Continuous steady-state
• B. Interval training
• C. Circuit-style cardio
• D. Yoga

Answer: (D)

Cardio training is about elevating and sustaining heart rate to improve aerobic capacity. Continuous steady-state, interval training, and circuit-style cardio are all geared toward keeping the cardiovascular system challenged for a workout, whether by maintaining a steady pace, producing high-intensity bursts, or moving through multiple activities with minimal rest. Yoga, while it can increase heart rate in some styles, is not designed to develop aerobic endurance as its primary aim; it emphasizes flexibility, balance, breath control, and mindfulness. It can still complement cardio by aiding mobility and recovery, but it isn’t considered a primary form of cardio training.