Complex Navy seals/Jumping jacks

Jumping Jacks
Standing with your feet together and your hands at your sides. Simultaneously extend your arms above your head and jump up, just enough to spread your feet out wide. Quickly reverse the movement.
Jumpick Jack-seated
Simultaneously extend your arms above your head. Quickly reverse the movement.
Navy Seals
Stand with your feet together and your arms extended in front of you at chest hight. Then we raise and lower our hands alternately.

Navy seal-seated
Extend your arms in front of you at chest height. Then raise and lower your hands alternately.