A good alternative for running is the rowing machine.

[Deleted member 8355]

If you're like me and absolutely hate running because of how boring it is, but still understand the importance of cardio, try the rowing machine. It's almost as good for burning calories as running is, and it's also a full body workout if you use it correctly.

Some sources

Rowing for Weight Loss

Rowing is an excellent way to bump up your calorie burning if you're looking to lose weight. This article provides a comprehensive overview of rowing for weight loss, including calories burned and specific workout plans.

www.healthline.com

The Best Ways to Burn Calories on the Rowing Machine

Rowers are possibly the most efficient exercise machines available; they give you a full-body workout while burning significant calories. To get the benefits, you'll need to row with proper technique.

livehealthy.chron.com