Cocaine is a fast acting drug with a short half life. The detection times reflect how long Cocaine stays in your system. Cokes half life is only about 60 minutes. Its effects can be felt within about 10-15 minutes after use.
Push-ups exercise the pectoral muscles, triceps, and anterior deltoids, with ancillary benefits to the rest of the deltoids, serratus anterior, coracobrachialis and the midsection as a whole.
The rectus abdominis and transversus abdominis contract continually while you perform push-ups, to hold your body off the floor and keep your legs and torso aligned. The rectus abdominis spans the front of your abdomen and is the most prominent of the abdominal muscles.