Respiratory muscle

“ This movement is specially adapted to the breathing powers of weak persons, yet the most vigorous can readily get from it all the exercise their chest and lungs require.
By means of these exercises the chest is gently but effectively expanded in every direction and the elasticity of its walls promoted, the air cells are expanded, and the lungs are rendered more permeable to the respired air, and the strength of the respiratory muscles is developed. ”

“ The impulse which comes from within, from the so-called respiratory centers, so excites the respiratory muscles that they cause the chest to execute the strongest breathing movements with the greatest ease, ventilating every portion of the lungs, filling every air-cell to its utmost capacity. ”

“ Special breathing exercises, as well as those active muscular movements which induce a thirst for air, are beneficial to the lungs by maintaining the flexibility of the chest, strengthening the respiratory muscles, and ventilating the lungs. These movements also exercise a most extraordinary beneficial effect upon the stomach, liver, and other organs which lie below the diaphragm. Each time the diaphragm contracts, it gives the liver, stomach, and adjacent organs a hearty squeeze, so to speak, emptying out the blood contained in these parts as one may by compression empty a moist sponge. ”

“ The respiratory organs in mammals are the mouth, nose, larynx, trachea, bronchial tubes, and lung-tissue or air-cells proper. The windpipe is made up of cartilaginous rings completed by membrane, muscle, etc. (behind) . The bronchial tubes are the continuation of the windpipe, and branch tree-like until they become very fine. The air-cells are built round these latter. The lung-tissue is highly elastic. The lungs are made up of an elastic membrane, covered with flat cells, and very abundantly supplied with a mesh-work of the finest blood-vessels. ”

“ One of the most important features of this method of breathing is the fact that the respiratory muscles are fully called into play, whereas in the other forms of breathing only a portion of these muscles are so used. In Complete Breathing, among other muscles, those controlling the ribs are actively used, which increases the space in which the lungs may expand, and also gives the proper support to the organs when needed, Nature availing herself of the perfection of the principle of leverage in this process. ”

“ The most eminent vocal teacher of this country asserts that in breathing “the main action should be at the waist and below the waist.” Animals and children have this natural breathing. Men and women lose it from lack of exercise, and constrictions of dress. Health, strength, longevity and power of endurance depend mainly upon lung capacity.
For constipation, those exercises must be taken that develop the diaphragm and other respiratory muscles, that strengthen the muscles of the abdomen and trunk as well as the muscular tissue of the intestines themselves. ”

“ At each respiration the pressure within the thoracic cavity becomes less than that of the atmosphere, and the blood is aspirated from the veins into the right side of the heart and lungs; conversely, at each expiration the thoracic pressure increases, and the blood is expressed from the lungs into the left side of the heart. While the respiratory pump at all times renders important aid to the circulation of the blood, its action becomes of supreme importance during such an exercise as running. The runner pants for breath, and this not only increases the intake of oxygen. ”

“ It is well known that muscular action provokes, in those who are not accustomed to it, panting, that is, a respiration stronger and more frequent than the normal respiration. This is in consequence of the greater rapidity of the current of blood which in its abundance demands, in order to pass through the lungs, more frequent or more ample respirations. The habit of muscular exercise, running, for example, has the effect of gradually adapting the respiratory function to the most rapid circulation which can pass the lungs. ”

“ HOW is it that the lungs can increase in size through athletic exercise? By a mechanism well known in physiology, by the filling out of certain air-cells ordinarily inactive, which only come into play during forced inspiration. The expansion of the pulmonary vesicles is complete in proportion to the quantity of air introduced. The atmospheric air drawn into the lungs by a very powerful inspiration seeks out the most obscure corners, and inflates the air-cells of certain regions which ordinarily have no part in the respiratory function. ”

“ Though the emphysematous lung is distended to a size equal to the healthy lung in deep inspiration, yet we know that emphysematous distention, being produced by extrabronchial air accumulation, is, in fact, obstructive to the respiratory act. ”

“ The chest must neither rise nor fall when inhaling or exhaling, it should be held up and out all the time, the expansion and contraction taking place at the base of the lungs. In order to obtain this full expansion and complete contraction of the lower lobes of the lungs during respiration, it is necessary to draw the abdominal muscles outward on the inhalation and inward on the exhalation. The outward action of the abdominal muscles will cause the diaphragm to flatten, thus removing the pressure of that muscle from the base of the lungs and permitting the air to enter all the lobes. ”

“ On the other hand, whatever favors the free expansion of the chest equally promotes the healthy action of the respiratory organs. Stays and corsets, and tight vests and waistbands, operate most injuriously, compressing as they do the thoracic cavity, and interfering with the healthy dilation of the lungs. ”

“ In addition to the effect on the circulation, the respiratory movements keep up the nutrition and efficiency of the lungs, which in old age undergo a kind of atrophy, and also maintain the elasticity of the chest-walls, which are apt to become stiff through disuse, and so interfere with the movements of the lungs and pleura. ”

“ The two lungs must, therefore, be alternately affected as to their capacity according as the heart occupies space on either side of the thorax. In expiration, the heart, E, is more uncovered by the shelving edges of the lungs than in inspiration. In pneumothorax of either of the pleural sacs the air compresses the lung, pushes the heart from its normal position, and the space which the air occupies in the pleura yields a clear hollow sound on percussion, whilst, by the ear or stethoscope applied to a corresponding part of the thoracic walls, we discover the absence of the respiratory murmur. ”

“ But however much the lungs vary in capacity, or the heart as to position in the respiratory motions, still the lungs are always closely applied to the thoracic walls. Between the pleura costalis and pulmonalis there occurs no interval in health. The thoracic parietes expand and contract to a certain degree; and to that same degree, and no further, do the lungs within the thorax expand and contract. By no effort of expiration can the animal expel all the air completely from its lungs, since by no effort of its own, can it contract thoracic space beyond the natural limit. ”

“ Writers and professors advocating exclusively so-called diaphragmatic, or costal, or abdominal respiration, are incorrect and perfectly deceived. The diaphragm, the ribs, and the muscles of the abdomen must all do more or less their special work, in order to carry on a normal and healthy respiratory act. An eminent physician, Dr. Ed. Fournié of Paris, says: “He who respires exclusively by one or the other of these alone (diaphragm, ribs or abdomen) must be indeed a sick man.” ”

“ A definite increase in the volume of the lungs is the consequence of frequent repetition of this supplemental respiration. The air-cells which are as a rule inactive, and which are reserved for cases of excessive respiratory strain, arise from their inaction; their walls, which are usually collapsed, and even stuck together, separate and give entrance to the air which can not find room in the confined space sufficient for ordinary breathing. ”

“ The student must bear in mind that the means are simply natural ones, used in accordance with natural laws. We have given him the acoustical theory of the effect on the auric nerve, and the means are the organs of respiration and sound, with the adjoining muscles. They are the diaphragm, the lungs, the trachea, the larynx, the pharynx, and the mouth. The diaphragm is a very large convex muscle, situated below the lungs, and having full power over respiration. The lungs are the organs of respiration, and are seated at each side of the chest ”

“ In the lungs, the air filling the air-cells would if left to itself soon lose all its oxygen and become loaded with carbonic acid; and the blood in the capillaries of the lungs would no longer be changed from venous to arterial, but would travel on to the pulmonary vein as dark and impure as in the pulmonary artery. Just as the blood in the muscle must be constantly renewed, so must the air in the lungs be continually changed. ”

“ When a number of muscles are called into energetic action, a greater quantity of blood will be propelled to the lungs and heart in a given time, than when the muscles are in a state of comparative inaction. It is no uncommon occurrence, that before there is a proper expansion of the respiratory organs to correspond with the frequency and energy of the movements of the muscles, there is an accumulation of blood in the lungs, attended by a painful sensation of fulness and oppression in the chest, with violent and irregular action of the heart. ”

“ If we sum up the facts we have just enunciated, we shall be driven to the conclusion that, in order to raise the ribs and get rid of the vicious conformation of flat chest, we must not seek to act directly on the thoracic muscles, but to produce as extensive respiratory movements as possible. ”

“ Thus the greater muscular effort in ordinary breathing is used to enlarge the cavity of the thorax or chest, producing inspiration—not, as in birds, to diminish the cavity, producing expiration. In other words, the air is forced into mammalian lungs by atmospheric pressure when, through muscular effort, the chest enlarges; and the air is expelled simply by the elastic reaction of the lungs and chest. ”

“ Part II commences with a memoir by Professor Martin and Edward M. Hartwell, on the respiratory function of the internal intercostal muscles. The authors show how conflicting are the opinions regarding the particular mechanical work done by these muscles; and how impracticable it is to decide by a simple mechanical study as to whether these muscles are rib-elevators or rib-depressors. Dogs and cats were used in their experiments, which show that the muscles in question are expiratory in their function throughout their whole extent. ”

“ If hepatisation exists in the anterior part of the lung the thick fleshy shoulder will forbid any satisfactory examination, but if in the middle portion only, while the respiratory murmur is lost it will be replaced by a strong blowing sound (bronchial respiration) because the noise of the air rushing through the larger bronchial tubes to the posterior healthy part of the lung is conveyed with greater force to the ear through the consolidated lung tissue. ”

“ The chief organ of respiration is the diaphragm, and as years of teaching bring experience which is definite in results, we find that the diaphragm is the only muscle which holds the air column in check. That muscle situated within the body cannot be held by any visible power. The thought of holding it still will make us hold our breath. Trying to assist such holding by muscles of the chest, abdomen or throat, only defeats our purpose and makes the diaphragm give way. That large muscle will do the whole work if we will let it. ”

“ So, also, when the rib muscles have come to the end of their tether in elevating these bones, the elastic recoil of the ribs and breast-bone serves to diminish the capacity of the chest, and to further expel the air from within its contained lungs. Labored or excessive breathing, as most readers know, calls into play extra help from muscles not ordinarily used in natural respiration. This fact takes us out of the normal way of life into the consideration of abnormal or diseased states, and demonstrates that the economy of Nature disappears when phases of morbid action fail to be observed. ”

“ That is to say, of the bodily muscles, the respiratory are more constantly implicated than any others in those various acts which our feelings impel us to; and, hence, when there occurs an undirected discharge of nervous energy into the muscular system, it happens that, if the quantity be considerable, it convulses not only certain of the articulatory and vocal muscles, but also those which expel air from the lungs. ”

“ And hence the absorbents of the lungs are less able to fulfil the whole of their duty. And part of the thin mucus, which is secreted into the air-cells, remains there unabsorbed, and occasions the difficult respiration, which awakes the patient. And the violent exertions of the muscles of respiration, which succeed, are excited by the pain of suffocation, for the purpose of pushing forwards the blood through the compressed capillaries, and to promote the absorption of the effused lymph. ”

“ No matter what knotted muscles he may have upon his arm, if the great converging muscle below the lungs is not equally strong and powerful, he can not strike an effective blow. It is said that out of three hundred recent candidates for the Navy school, two hundred and twenty-five were rejected simply because of contracted chests and inefficient breathing. Manhood, womanhood, endurance and longevity depend upon lung power, and this is within the reach of all.
Educate the muscles of respiration. “To learn deep breathing be as passive as possible ”