This is equivalent to saying that the most expansionary setting reached during the downward phase of the interest rate cycle should be maintained until such time as a move to a clearly restrictive setting is required, and only then should a move be made. (rba.gov.au)
The downward phase of a push - up involves an eccentric contraction of the chest muscles, which is immediately followed by a strong concentric contraction to push back up and clap the hands. (sportsinjuryclinic.net)
Use basic squatting technique; force knees out (don't let them collapse), come down to parallel or close to it (a depth where you feel comfortable), do not round your lower back, try to simultaneously contract your abs, glutes and quads when you are «in the hole», control your movement in the downward phase (go slower that coming up out of the squat), inhale on the way down and exhale as you come out of the squat. (ptinto.com)