Push ups - strivica

Push ups are good for everyone - these are basic exercises that develop the upper body muscle groups.

The program presents various levels of training without any special equipment, you can choose appropriate for you, improve, perform at the end of each level test day push ups and move on to the next workout level of up to 100 push ups.

By the way, the world record for pushing up - 10507 times =) (wikipedia)

The application also calculates the calories that you will burn at each day of the push ups.

Here’s how to get into proper push-up position:

1) On the ground, set your hands at a distance that is slightly wider than shoulder-width apart. 
2) To alleviate wrist pain (if you have poor wrist flexibility) do your push-ups holding onto push-up handles (so your wrists aren’t as compromised), or a bar (see Staci’s video below doing elevated push-ups for example).
3) Your feet should be set up in a way that feels right and comfortable and in balance. For some, that might be shoulder-width apart.
4) Think of your body as one giant straight line – from the top of your head down through your heels. Your butt shouldn’t be sticking way up in the air or sagging. You’re essentially holding a plank throughout the entire movement.
5) If you have a problem getting the proper form with your body, try this: clench your butt, and then tighten your abs as if you’re bracing to get punched.
6) Your head should be looking slightly ahead of you, not straight down.
7) At the top of your push-up, your arms should be straight and supporting your weight. You’re now ready to do a push-up.
8) I want to draw special attention to that first step with hand position: nearly EVERYBODY does push-ups with their arms out far too wide and their shoulders flared. This is bad news bears.