Fixed number of repetitions. For example, 10 repetitions may comprise one set.
Slow Twitch Muscle cells that contract slowly are resistant to fatigue and are utilized in endurance activities such as long-distance running, cycling or swimming.
Snatch Olympic lift where weight is lifted from floor to overhead, (with arms extended) in one continuous movement.
Spot Assist if called upon by someone performing an exercise.
Spotter Person who watches a person closely to see if any help is needed during a specific exercise.
Static Stretch A stretch that is held within the stretched position for several seconds, without movement.
Sticking Point Most difficult part of a movement.
Stiffness Refer to DOMS
Straight Sets Groups of repetitions (SETS) interrupted by only brief pauses, (30-90) seconds.
Strength The ability of a muscle to produce maximum force.
Strength Training Using resistance weight training to build maximum muscle force.
Stretch Marks Tears (slight scars) in skin caused if muscle or fat tissue has expanded in volume faster than the skin can grow.
Striations Grooves or ridge marks seen under the skin, the ultimate degree of muscle definition.
Stroke A condition which occurs from insufficient oxygen supply to the brain.
Super Set Alternating back and forth between two exercises until the prescribed number of sets is completed.
Sympathetic Nervous System Part of the autonomic nervous system that prepares the body for activity by speeding up the heart rate.