From Latin impulsus, the term impulse refers to the action and effect of boosting (incite, stimulate, push). Impulse is also the suggestion and instigation. For example: “This award is the boost I needed to continue my writing career”, “We are going to give impetus to all the productive activities that take place in the provincial territory”, “We need momentum to get ahead”.
It is known as impulse to wish or emotion that leads to doing something untimely and without reflection: “I did not know what I was doing; it was just an impulse “, “Sorry, I got carried away by the impulse”, “I took her hand and kissed her: it was an impulse but it was worth it”, “Sometimes you have to listen to your heart and act on impulse: it is the only way to be happy”.
Impulse is, on the other hand, the force wearing a Body moving or growing: “The momentum of the ball was enough to reach the goal”, “The car ran out of fuel half a lap from the end, although it ended up crossing the finish line thanks to the momentum it brought”.
The expression “Gain momentum” is linked to the action of running to take a jump or a throw with greater momentum: “Be careful with the well: you have to take momentum and jump with all your might”, “The athlete took a long momentum and threw the javelin at a distance that sets a new Olympic record.”, “I took momentum and tried to jump over the puddle, but I fell right in the middle of the water and had to change my shoes and socks”.
Electrical impulses and muscle electrostimulation
Impulses electrical They are variations in intensity or voltage of a pulsating type current, and usually last only a few microseconds and show an angular wave. One of the areas in which this concept is used is physiotherapy, more precisely electrostimulation. In this context, to obtain the desired result in each case, it is essential to know the characteristics of the electrical impulse, which are detailed below:
* frequency: defines how many times an impulse is produced per second and represents one of its most significant parameters. With respect to therapy muscle, lower frequencies stimulate slow fibers, while higher frequencies affect fast fibers. To strengthen slow muscles, both these and the fast ones, or just the fast ones, the ranges of 2 to 30, 30 to 70 and 80 to 120 Hertz are used, respectively;
* time or width: it is the duration of the stimuli, the magnitude of which must be measured in microseconds, as detailed by Weiss’s law (which establishes a relationship between amplitude, intensity and the duration of the application). A term related to this point is cronaxia, which comes from the concepts weather Y value, and specify the weather what is needed to get a current to work on a muscle and produce a contraction;
* intensity– Also called amplitude, it should be measured in amperes (the unit used as the basis for recording the intensity of electrical current). When working with electrostimulation it is essential to pay special attention to the sensations that the patient experiences at each step; Basically, three moments are distinguished, which are the one in which you begin to feel the current, the point at which contractions appear and the arrival of pain. Through the correct configuration of the amplitude of the impulses, it is possible to avoid the annoyances, at the same time that the performance of the application is maximized.
Finally, it is important to carefully observe the time that passes between a contraction and the following; this is known as resting time, and is directly related to the result of the treatment. In short, the shorter the period, the greater the effort.