The push-up may be the perfect compound exercise. If done correctly, it builds upper-body and core strength using the muscles of the chest, back, shoulders, triceps, abs, and even the legs. Keep an eye on your form.
|LEVEL 1:||Kneeling Push-Up|
|LEVEL 3:||Plyo Push-Up|
Begin on all fours and position your hands on the floor slightly wider than shoulder width apart. Extend your legs and rise up onto your toes, engaging your core and forming a straight line from ankles to head.
Bend your elbows, ...