Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 17, 2025
Not only are these valuable in producing freedom about the shoulder-joint, which, as has been explained, is a great desideratum, but twisting motions of the limbs contribute more to a rounded, symmetrical development than any other exercises. If the flexors and extensors are exercised in simple, direct lines, the muscular outlines will be too marked.
Even as his hand rose, the concussor struck the outer side of his arm, between the shoulder and the elbow, on the exact spot where the musculo-spiral nerve turns round the bone. The effect was most interesting. The sudden nerve stimulus produced an equally sudden contraction of the extensors.
Their hairy chests showed, where some men parade elaborate shirt-bosoms. Some had their sleeves pushed up to the elbow to exhibit their compact flexors and extensors. Some had rolled their flannel up to the shoulder, above the bulging muscles of the upper arm.
If the body be properly covered, the animal heat is being conserved, and laid up for expenditure during the waking hours that are to follow; the respiration is reduced, the inspirations being lessened in the proportion of six to seven, as compared with the number made when the body is awake; the action of the heart is reduced; the voluntary muscles, relieved of all fatigue, and with the extensors more relaxed than the flexors, are undergoing repair of structure, and recruiting their excitability; and the voluntary nervous system, dead for the time to the external vibration, or, as the older men called it, 'stimulus' from without, is also undergoing rest and repair, so that, when it comes again into work, it may receive better the impressions it may have to gather up, and influence more effectively the muscles it may be called upon to animate, direct, control."
A painless swelling of an elastic character forms in relation to the tendon sheath. It is hour-glass-shaped in the common flexor sheath of the palm, elongated or sausage-shaped in the extensors of the wrist and in the tendons at the ankle.
The same two classes of differences become obvious when the muscles of the hand are compared with those of the foot. Three principal sets of muscles, called "flexors," bend the fingers and thumb, as in clenching the fist, and three sets the extensors extend them, as in straightening the fingers.
He may, however, regain some power of flexing the forearm when it is fully pronated, the extensors of the wrist becoming feeble flexors of the elbow. There is, as a rule, no loss of sensibility, but complaint may be made of tickling and of pins-and-needles over the lateral aspect of the arm.
The flexor tendons are sometimes destroyed, the toe being dorsiflexed by the unopposed extensors. The depth of the track being so disproportionate to its superficial area, the condition closely simulates a tuberculous sinus, for which it is liable to be mistaken.
The flexors and extensors of the legs, the broad muscles of the back and abdomen, and the slender and intricate bundles of fibres which support and steady the spine, are all gently exercised in locomotion. The respiration and circulation are moderately increased, and the blood aërated with fresh air.
The general increase in muscular tone produces an interesting postural phenomenon: the limbs are flexed and the body bent forward, a position which probably is due to the fact that the flexors are stronger than the extensors.
Word Of The Day
Others Looking