For on-the-go people who want an alternative to the traditional push-up, here's a quick and easy move to keep your upper body strong. You can work one side's tricep while targeting the other side's chest, back and shoulders.

1 Get into a push-up position, balancing on your toes and hands. Move your left hand down until it's below your left shoulder, with your fingers pointing forward. Move your right hand out to the side slightly in front of your shoulder. Drop your hips so your body forms a straight line from your neck to your ankles. Keep your abdominals pulled up to support a straight spine.

2 Slowly lower your body by bending your elbows until your left upper arm is parallel to the floor (don't let your shoulders move below the height of your elbows). Without dropping your hips or twisting your spine, push back up in a controlled, fluid action. Repeat eight to 10 times, switch arm positions and repeat with your right arm below your right shoulder.

This article originally appeared in the Los Angeles Times in the "Good Form" feature of the Health Section. "Good Form" is updated with a new Karen Voight article each Monday.