What does ST stand for?

Shorter distance athletes may want to emphasize more strength work for speed, while longer distance athletes, that are more slow twitch, will not need as much weight work.

Fast twitch versus slow twitch refers to how the muscles are chemically wired to contract, either for speed or stabilization).

Some of the factors that influence whether fat or CHO is being used as fuel during running, as delineated by various authors (1,2,3,4,5,6,7), are: * Intensity or pace of the run * Time or duration of the run * Fitness level of the runner * Diet immediately prior to the run * Long-term diet for the runner * Genetics (fast twitch or slow twitch muscle fibers) * Factors of the environment (temperature, humidity, wind, incline, altitude, surface of run, etc.

We all have a supply of fast twitch and slow twitch muscles in varying quantities and all those people that end up as strikers in football or fast bowlers or long jumpers or sprinters have more fast twitch than defenders or slow bowlers or distance runners.

Skeletal muscles come in two basic types: type I, or slow twitch, and type II, or fast twitch.

When you do more reps of something lighter you are turning on what is called a slow twitch.

To gain speed and strength with the same coordination, the player has to develop his fast-twitch muscles more (60-70%) than he does the slow twitch (about 30%).

It has been shown that aging results in a loss of the power and speed producing fast twitch fibers (particularly IIb) and an increase in the more aerobic slow twitch fibers.