While the best exercise is the one you consistently do, the energy efficiency of your workout matters. As a fitness instructor, I often note that cycling feels easier than running. Both are cardio-focused, yet cycling is perceived as smoother.
Cycling is more efficient because it reduces energy waste. Running involves constant impact and stop-and-go motion with each stride, which drains energy. In contrast, cycling's circular pedal stroke maintains steady momentum with minimal upper body movement, making it far more efficient.
Biomechanics expert Anthony Blazevich, PhD, states cycling is at least four times more energy-efficient than running, largely due to its lower impact. This efficiency comes from minimizing energy drains like limb movement and ground impact.
However, efficiency doesn't mean less effectiveness. Cyclists may underestimate their effort due to the controlled feel, while runners feel the intensity immediately. Both can deliver excellent results.
Cycling's efficiency makes it ideal for sustained effort, building aerobic capacity with less joint stress, and accumulating high training volume. By increasing resistance and effort, it can be just as challenging and rewarding as running.