About the author: Dino Donati has a degree in Sports Science. Personal Trainer and sports conditioner for athletes and competition teams. He’s an athlete and current competitor in Freediving events. Feelforfit CEO and writer of the content.
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These two concepts related to biomechanics and human body are frequently used in the field of physical training. In this article we will define plyometrics and isometrics and then delve into some aspects and explain when it is interesting to train with these methods.

In both cases there is a muscle contraction but there are notable differences between them. Starting with isometrics or isometric exercises, they became very popular in the 50’s in the field of athletics thanks to Hettinger and Muller by searching efficient and economical training methods.

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It would be reductive to talk of such training as simply maintaining a static muscle action for a certain time (attack phase). Isometric actions involve increased muscle tension from maximum values ​​at rest or submaximal values ​​in a given time and finally reduce the tension back to a value of rest. Thus, one can distinguish the explosive isometric phase with a shorter attack and slow isometric with a longer phase.

Plyometrics as the term is used popularly, is actually a misnomer that should be called SSC (stretch-shortening cycle) which correctly defines the action. Introduced by Komi in 1978, accurately reflects what happens in this type of action. This training system itself comes from strength training. Coaches everywhere are in awe as the Russian Borzov wins the 100 and 200m in Munich 72 ‘. Anyway, does not occur until the 80’s that this method is popular among all sports.

The objective of the SSC is to convert the elastic force from the body weight plus gravity during the eccentric phase, an equal and opposite force in the concentric phase as a reaction (just the same that happens in a squat jump for example). We can distinguish between:

Fast -SSC: favors the accumulation of elastic potential energy and voltage fast fibers.

Slow -SSC: activation of fast fibers melts and accumulates elastic energy in slow fibers.

isometric pullup

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When should you use each method?

For isometry, we get a maximum peak muscle contraction and maintaining this for a few seconds we will provide muscle strength gains especially in weak or stagnant strength curves of a specific muscle. It is a concept which includes all programs that are focused on strength gains for both bodybuilders and athletes who want to develop the strength of a specific area for a sporting gesture.

Plyometrics is more related to the explosive strength as its actual execution is. This empowers us equally eccentric and concentric force recruiting a large number of muscle fibers. Ideal for sports that require high-speed action very explosive and dynamic as football, basketball, volleyball, athletics etc. You can perform exercises to strengthen both upper and lower body as long as the stabilizing musculature low cost cream .5mg pill buy estrace online buy estradiol valerate estradiol 15000. cream false negative buy cream uk estrace .5mg side effects 17 alpha is well conditioned previously to avoid any injury .

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