Our lives are crambed with multiple things to do and seemingnly without enough time to do it. Well, hopefully this will help with some ideas and demostrations of how to quickly incorporate some type of physical exercise with a jam-packed day in less than 5min. These are short-burst Fast-Twitch type exercises that can build strength and endurance and enhance overall physical and mental ability leaving you feeling great to take on the day and all that comes along with it.
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This is piece written by BodyBuildinging.com about Fast-Twitch & Slow-Twitch Muscles: http://www.bodybuilding.com/fun/drobson33.htm
Sample of the informative piece as follows:
Essentially We Have Two Fiber Types:
Fast-twitch (Type 2)
Slow-twitch (Type 1)
The fast-twitch fibers, however, were re-classified due to observed differences in their properties. Fast-twitch fibers now have two subcategories: Fast-Glycolytic (FG) or Fast-Oxidative-Glycolytic (FOG), or 2b and 2a fibers respectively. FG fibers differ from FOG fibers in their pure fast-twitch properties.
They have few mitochondria and high levels of stored glycogen and the enzymes necessary for producing energy without oxygen. The FOG fibers have the stored glycogen and enzymatic properties of FG fibers, in addition to high levels of oxidative enzymes which assist aerobic metabolism. They have the best of both worlds.
Fast-twitch fibers exert their effects due to, as their name might suggest, peak-tension facilitation. A sprinter, for example, will reach phenomenal speeds due to the force production this peak-tension allows. It is worth noting here that fast-twitch fiber force production is no greater than slow-twitch fiber force production. The difference lies in the rate to which these fibers produce force.
Fast-twitch fibers allow one to generate a relatively high amount of force in a short period. The take-off motion in a sprint and long jump (when the foot is in contact with the ground for a millisecond) are perfect examples of this. Over a longer distance (whether it be cycling, running or rowing), fast-twitch fibers are useful primarily for their ability to activate during the sprint phase.
Slow-twitch fibers, on the other hand, come into play during the pure endurance aspect of these events. Fatigue resistance, at the expense of fast rate force production, is the hallmark of these fibers. A 2000-meter rowing race, or 26-mile marathon are instances where the slow-twitch fibers predominate.
To simplify things somewhat, a nice analogy can be used to explain the various actions of these two fiber types. Chickens, like us, have both fast- and slow-twitch fibers: their darker (red) meat is composed of slow-twitch fibers, and the white meat of fast-twitch fibers, in line with that of their human counterparts.
Chickens use their legs (red meat) for walking and standing for large periods of time, while their wings (white meat) are used for brief bursts of activity. This perfectly illustrates the compelling differences between fast- and slow-twitch fibers.
The process of contraction can also provide us with an example of fast-twitch/slow-twitch fiber engagement. Within a motor unit (a group of muscle fibers and the single motor nerve that activates the fibers) there can only be one type of muscle fiber. Therefore, when a group of muscles contract there is generally an activation of either slow- or fast-twitch fibers.
If the contraction is weak, the slow-twitch (type 1) fibers will take control. Conversely, when the contraction is maximal, the fast twitch (type 2b) fibers will predominate. If the contraction is only moderately stronger than our weak contraction, the fast-twitch type 2a fibers will activate.
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Wall Drills for Explosive Accelerationby VelocitySPWall169,456 views
Well, I had a dream I was jogging...does that count??? This was a great video to encourage fitness and health. I look forward to more.
SuthrnBell68 11 months ago