The document discusses muscular physiology and how it relates to golf. It explains that skeletal muscles provide movement, heat, and posture, which are all important for golf. Muscles contract and relax via interactions between actin and myosin filaments, allowing for movement. The "sliding filament theory" describes how muscle fibers shorten during contraction as filaments slide across each other. Calcium ions play a key role in the excitation, contraction, and relaxation of muscle fibers. Exercise causes muscles to "burn" as they run low on oxygen and produce lactic acid for energy. Motor units consist of muscle fibers innervated by a single motor neuron and come in fine or gross varieties. Warming up muscles enhances their response through the
4. is occurring at the same time as the contraction, it does not appear on the myogram as a
separate event.
14: Treppe Effect
The concept or phenomenon of "Treppe" occurs when a muscle contracts more forcefully
after it has contracted a few times than when it first contracts. This is due to the fact that active
muscles require decreasing degrees of succeeding stimuli to elicit maximal contractions. Returning
to our example of the second set of squats feeling easier than the first, during the first set there was
insufficient warm-up, and the second set felt easier because the first set actually served as a warm-
up. The phenomenon in which the contraction strength of a muscle increases, due to increased
Ca2+ availability and enzyme efficiency during the warm-up.
Golfers need to warm-up too; all that practice is what makes a golfer’s movements so fluid.