10 Steady-state will be back in the running

“Whether or not you like cardio, it’s impossible to deny its myriad health benefits,” says Delaney, who anticipates a shift in programming to prioritise the often unloved exercise form. Running might have overtaken other forms of training because of lockdown, but it will hold its position in 2021. HIIT rose in popularity fast, but it can have a detrimental effect on our well-being if done too frequently. Delaney predicts there’ll be a greater focus on “energy expenditure and renewal”, with those who are focused on gains “swapping out an extra high-intensity session for some lower-intensity cardio, or an extra rest day”.