How to do properly classic military press?

1. Stand with your feet shoulder-width apart, holding a barbell with an overhand grip at shoulder level, with your elbows bent and pointing forward.

2. Tighten your core and glutes and press the barbell straight up above your head, keeping your arms close to your head.

3. As you lift the barbell, exhale and keep your abs and glutes engaged.

4. Pause briefly at the top of the movement, with your arms fully extended.

5. Slowly lower the barbell back down to shoulder level, inhaling as you do so.

6. Repeat for the desired number of reps.

It's important to maintain proper form throughout the military press to avoid injury. Keep your back straight and engage your core and glutes throughout the movement. Make sure the barbell stays close to your body as you lift it. And, choose a weight that challenges you but allows you to maintain proper form. Finally, remember to warm up before performing any weight-bearing exercise and stretch afterward to help prevent injury.