Sprinting is very underrated in my opinion. It’s one of the most basic exercises that will help maintain or even build muscle and that’s crucial for fat loss. The hill just adds more intensity to it which will ensure more calories being burned in a short period of time. That’s not including the other benefits like improving your cardiovascular endurance and strengthen your core muscles. Running on a treadmill with a high incline would be a good substitute. #fitness #fitnessmotivation #hillsprints