Lie prone on floor with hands under shoulders or slightly narrower. Position body up off floor with extended arms and body straight.
Keeping body straight, lower body to floor by bending arms. Push body up until arms are extended. Repeat.
Both upper and lower body must be kept straight throughout movement. See wider grip push-up.
Resistance can be reduced by performing push-ups with knees bent on floor or placing hands on elevated horizontal bar or edge of elevated surface.
For greater challenge, elevate feet or perform Triceps Dips on parallel bars.