17 Quiet, At-Home Cardio Exercises That Trainers Recommend
Break a Sweat With 17 Quiet, Bodyweight Cardio Moves That Won't Annoy Your Neighbours
13
The wall sit is a step up from a traditional air squat, said Amanda Murdock, ACE-certified personal trainer and director of fitness at Daily Burn. "See how long you can hold it," she suggested. If you want even more of a challenge, hold weights or weight substitutes while you squat.