Plyometrics - Cloze

First, do these activities: vocabulary. Listen to the recording if necessary: MP3 (slow), MP3 (fast). Fill in all the gaps with the missing words, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Click the this button again for another letter. You can also click on "[?]" for a different hint. Note that you will lose points if you ask for hints or clues! Finally, do the quiz.

Primero, haz la actividad de vocabulario. Escucha la grabación si es necesario. Rellena los espacios en blanco con las palabras que faltan. Haz click en "Check" para comprobar tus aciertos. Si te resulta difícil la respuesta utiliza el botón "Hint" y te revelará una letra de la casilla en la que te encuentres, puedes clickear varias veces en "Hint" y te dará cada vez una letra más de la palabra. Para obtener ayuda también puedes clickear en el botón "[?]" y te dará una pista. Perderás puntos con las pistas.

Slow:     Fast:
   contraction      exceptional      explosiveness      forcefully      indicative      innervation      lineman      performance      receiver      reps      sprint      surge      tissues      toughen      weight      whereas   
Extracts from Wikipedia.
Plyometrics is a type of exercise training designed to produce fast, powerful movements, and improve the functions of the nervous system, generally for the purpose of improving in sports. Plyometric movements, in which a muscle is loaded and then contracted in rapid sequence, use the strength, elasticity and of muscle and surrounding to jump higher, run faster, throw farther, or hit harder, depending on the desired training goal. Plyometrics is used to increase the speed or force of muscular contractions, providing for a variety of sport-specific activities. Plyometrics has been shown across the literature to be beneficial to a variety of athletes. Benefits range from injury prevention, power development and performance amongst others.
Muscular power and muscular strength are two different things. Muscular strength refers to how much force can be applied (The ability to lift a heavier weight as opposed to a lighter one). Strength alone is not of speed. Although muscle strength is correlated to sprint performance, research has shown that combining both resistance training and plyometric training will have better effects on training. While plyometrics assists in rapid force development (power), training assists in maximal force output (strength). Power refers to the combined factors of speed and strength. Performance in many sports is based on different types of power. In American Football, a and a may have the same power, but they have different limitations in how their power is delivered. The lineman would be speed-limited, the receiver would be strength-limited. The purpose of plyometrics is to emphasize speed-based power. One activity that requires speed-favored power is high jumping: ultimately, jump height is determined by how fast one is moving once one's legs have left the ground. Good jumpers may not have leg strength, but they can produce it at exceptional speeds.
Plyometric training involves and uses practicing plyometric movements to tissues and train nerve cells to stimulate a specific pattern of muscle so the muscle generates as strong a contraction as possible in the shortest amount of time. Plyometric training conditions the neurons to contract with a single powerful rather than several disorganized contractions. The result is a stronger, faster contraction allowing a heavy load (such as the body) to be moved quickly and .
Repeated use of plyometric exercises will gradually increase the efficiency of neuromuscular connections between brain and muscle. However, a fine balance must be used if one wishes to build strength and power through plyometrics. It is often recommended that plyometric repetitions be no higher than 75-100 . Also, training with plyometric exercises more than three or four times per week can cause muscular degeneration if proper nutrition and rest are not taken into account.