Plyometrics:
These are exercises designed to generate the greatest amount of force in the shortest amount of time.

Parasympathetic Nervous System Branch of the autonomic nervous system that slows the heart rate.

Partial Reps Performing an exercise without going through a complete range of motion either at the beginning or end of a rep.

Peak Contraction Exercising a muscle until it cramps by using shortened movements.

Pec's Abbreviation for pectoral muscles of the chest.

Performance benefit Improvements in physical fitness as a result of exercise.

Peripheral Vascular Disease Lack of oxygen supply to the working muscles and tissues of the body, resulting from decreased blood supply.Predominately affects the limbs,the parts of the body furthest away from the heart such as the legs (calves), hands and feet.

P.H.A. - Peripheral Heart Action A system of training where you go from one exercise to another, with little or no rest, preferably alternating upper body and lower body exercises. Designed for cardiovascular training and to develop muscle mass.

Plyometric exercise Where muscles are loaded suddenly and stretched, then quickly contracted to produce a movement. Athletes who must jump do these, i.e. jumping off bench to ground, quickly rebounding to another bench.

PNF Proprioceptive Neuromuscular Facilitation Stretching exercises used to increase an individuals flexibility.

Pose Down Bodybuilders performing their poses at the same time in a competition, trying to out pose one another.

Power Strength + speed.

Power Lifts Three movements used in power lifting competition; the squat, bench press and dead lift.

Power Training System of weight training using low repetitions, heavy weights.

Progressive Resistance Method of training where weight is increased as muscles gain strength and endurance. The backbone of all weight training.

Pumped Slang meaning the muscles have been made large by increasing blood supply to them through exercise.

Pumping Iron Phrase that has been in use since the 1950's, but recently greatly popularized. Lifting weights.

Phytochemicals substances occurring naturally in plant foods

Plaque fatty deposits on the interior of artery walls

Polyunsaturated Fat fats whose carbon atoms contain only limited amounts of hydrogen

Proteins the only one of six essential nutrients containing nitrogen