Why Zone 2 Running Is Suddenly So Popular in Singapore (opens in new tab)

The Blue Cats’ website: The Blue Cats' Instagram: -------- High-Intensity Interval Training, or HIIT, was once the dominant fitness trend, ranked the number one global fitness trend in the American College of Sports Medicine's Worldwide Survey of Fitness Trends in both 2014 and 2018\. Gyms and studios such as F45 built their businesses around short, intense sessions with brief rest periods\. Its popularity then declined steadily, falling to number seven by 2022, number six by 2025, and numb...