Electronic Pulse
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Using Electronic Muscle Stimulation Systems to Prevent Muscle Atrophy
Electronic muscle stimulators, or EMS devices, are electronic devices that stimulate the muscles. Many bodybuilders use them to speed up muscle repair after a strenuous workout. When they have worked out hard, they get microscopic tears in their muscles and it is the healing of those tears that allows their muscle mass to grow. This would explain why EMS systems are commonly used in preventing muscle atrophy in those who are physically disabled.
For a person who has a disease or has been in an accident that prohibits them from using certain muscles, those muscles will begin to deteriorate over time. You may notice someone with atrophy in their legs have legs that are smaller than they should be. This is because the muscle is deteriorating away. Along with that muscle mass goes the strength. Although they may not be able to use the atrophied muscles anyway, it is healthier to prolong or altogether prevent the atrophy from occurring.
Other reasons to prevent atrophy
Another reason in which EMS systems are used to prevent muscle atrophy is the fact that there have been medical breakthroughs that have enabled individuals who have not been able to use their muscles for years to suddenly use them. People who could not so much as stand are standing, so it was important to keep the muscles stimulated. Even if there is no hope of a person being able to utilize those muscles, they still need to be stimulated since medical breakthroughs are happening every single day. One just never knows when they're going to be notified of a new development, so their muscles have to be primed and ready to go.
How an EMS system works
EMS systems involve having more than one electrode placed upon the skin. From there, small electronic pulses are emitted, usually by the push of a button. These pulses cause the muscles to contract. The contraction is similar to what is received when exercising. This is the very contraction that is needed to keep the muscles stimulated. It is true that an EMS system can't be connected all of the time, but it is great to have that available at a certain point or at points during the day to make sure the muscles get that bit of "exercise" that they need.
As for the effectiveness, EMS systems are quite effective, which is why so many individuals own them for various different reasons. As stated before, bodybuilders own them to help them in their bodybuilding routines. There are even some who use them to relieve muscle pain. The best way to relieve pain is by stimulating the muscle so that it can heal. If you've ever heard the saying, "Work it out," then you understand how an EMS system can do this. These are all reasons why doctors prescribe them to be used for those with such conditions as Muscular Dystrophy, for paraplegics, and for those who have encountered severe injuries that have resulted in severe muscle damage.
Luckily, EMS systems are not an incredibly high investment. Many individuals are able to afford them and every individual can invest in the device that fits their particular needs. Certain ones give off a certain voltage, are different colors, different sizes, come with more or less electrodes, etc. Some may come with one type of electrode while others come with electrodes specially designed for different areas of the body. But again, they are not very expensive, making EMS systems an easily accessible treatment method for anyone. Anyone with a muscle disorder or injury should invest in an EMS system to improve the quality of their life and to keep up a healthy appearance.
About the Author
Tone-A-Matic offers top quality electronic muscle stimulators to supplement your regular workout program without putting stress on your joints, lower back or neck and shoulders.
The Emergence of Electronics in the History of the Computer
The history of the computer inevitably includes the development of electronics, we look at the explosive (!) growth of electronics in the late 1930s and early 1940s.
If anything could be said in favor of war, it may be that it speeds up the development of technology. Of course much of that technology is employed in killing people and destroying infrastructure, but there are also things which could be considered beneficial.
Electronics was around in the early part of the 20th Century, wireless, or radio, was in its infancy at the time of the first world war. Radio broadcasting came into prominence in the '20s and 30's, Television started in the '30's.
The second world war, from 1939 in Europe, and a couple of years later involving the USA, ended in 1945. Radar (Radio Aid To Detection And Ranging) was developed from early experiments, just prior to the war, in Britain and Germany. There was rapid development in the field, and, by the end of the war, Radar was being used in several fields.
Aircraft Navigation - Using ground transmitters in sets of 3, widely spaced, to give an aircraft using a receiver a method of pinpointing its position. This is a similar system to that used in gps today, substituting satellites for the ground stations.
Targeting - A beam was transmitted from a Radar station in England so that it intercepted a target in Germany. An aircraft could fly along the beam, guided by signals, dots or dashes, if it strayed off the beam, left or right. Known as flying on the beam.
Interception - a series of ground stations around the South-East coast of England, feeding into a central control room, where their tracks could be displayed, significantly assisted in the Battle of Britain (1940).
Airborne Interception (AI) - Developed towards the end of the war, used a Tranceiver (transmitter/receiver) in a night fighter to find a target in the dark, or bad weather, and track it to within firing range.
Beacon - A tranceiver was located at the end of a runway so that ground staff could guide a returning aircraft to land in bad weather, this became more and more sophisticated, developing into GCA or Ground Controlled Approach.
Shipping - radar equipped vessels could track other vessels in darkness or fog, whether peacefully or aggressively.
Many other sytems were developed or initiated in that 6 year period. Knowledge of electronics, and what it could be used for vastly increased. In parallel with the development of radar, other fields of electronics were also advancing, under pressure from the requirement to improve the technology.
Long range guns on ships or in the field needed to be aimed accurately. The calculations required in ballistics to aim a gun so that you can hit the target, or aim a V2 rocket so that it hits London from continental Europe, are phenomenal.
This, then was the scene at the end of the war. We knew how to tackle large calculations with speed, and we had developed a new concept in electronics, Pulse Technology. This is so called because radar uses short pulses of high energy, for two main reasons.
1. The pulses can be coded. For example, in the Navigation example we looked at, 3 ground stations transmit a signal whose source needs to be identified. One transmitter could transmit a series of single pulses spaced say 10 milliseconds. A second could transmit a pair of pulses at 10 millisecond spacing, and the third 3 pulses. A chart would tell the navigator where the pulse sets were transmitted from, and the distances obtained from the radar set used to locate the position on the chart.
2. The power, or strength, of the signal. A continuous radio signal, like a radio broadcast, takes a given amount of power. However, a 1 millisecond pulse every 10 milliseconds, uses only one tenth of the power, on average. So a radar transmitter can have a much greater range for the same power. This is is especially important in a primary (transmit and receive) radar system, where we must detect the reflection of the signal we transmit. Likewise a secondary (receive) radar system, for example the navigation system above, will have a bigger range.
Next we will look at how early computers were now possible due to these developments.
About the Author
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