Popsugar Fitness Workouts Bodyweight Exercises to Build Muscle If You Don't Have Weights but Want to Build Muscle, Start Doing These 12 Exercises 24 August, 2020 by Tamara Pridgett View On One Page Photo 1 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Knee Push-Up Begin in plank with your knees on the mat. Exhale to bend the elbows, lowering into a push-up. Inhale to straighten your arms. This completes one rep. Previous Next Start Slideshow Staying HomeTrainer TipsBodyweight ExercisesFitness TipsStrength Training