dontchaknow
Registered
I don't live close to any tracks and I don't want to sprint on asphalt because it might damage my knees over time. Are there any indoor alternatives? I'm thinking cycling hard would be an okay substitute for sprinting. I thought about sprinting on the treadmill but it just doesn't feel right. This is also not to mention that during winter, it snows around here and its tough to sprint in blizzards. What do you guys think?