When the weather cools and the days get shorter, scrounging up enough energy for a cardio workout can be challenging. Plus, sweating it out in the confines of a loud, frenetic gym isn’t always appealing, especially if you’re used to exercising outdoors. Luckily, you don’t have to spend all winter trudging away on the treadmill or elliptical machine—these pro-approved indoor cardio workouts are both challenging and fun.
“You should always be changing up your workout routine anyway, so the change of season is an ideal time to try something new, and even give some of your overused muscles a break,” says L.A.-based personal trainer Ali Moyer. “You may even want to consider doing at-home HIIT workouts, which are a great way to get fit, in minimal time, without having to leave the house.”
Excerpted from Real Simple