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The blood volume of seals is proportionately larger than terrestrial mammals, and the haemoglobin content is very high. This makes the oxygen-carrying capacity and the blood oxygen store very high, but it is not necessarily available at all times. Aortic haemoglobin concentration has been observed to rise in diving Weddell seals.
Asphyxia or asphyxiation is a condition of deficient supply of oxygen to the body which arises from abnormal breathing. [3] [4] Asphyxia causes generalized hypoxia, which affects all the tissues and organs, some more rapidly than others.
The respiratory system may compensate for dropping oxygen levels through hyperventilation, though a sudden ischemic episode may also proceed faster than the respiratory system can respond. [9] These processes cause the typical symptoms of fainting: pale skin, rapid breathing, nausea, and weakness of the limbs, particularly of the legs. [ 3 ]
Others use drag powered swimming, which can be compared to oars rowing a boat, with movement in a horizontal plane, or paddling, with movement in the parasagittal plane. Drag swimmers use a cyclic motion in which they push water back in a power stroke, and return their limb forward in the return or recovery stroke.
The movement of each limb was partitioned into a stance phase, where the foot was in contact with the ground, and a swing phase, where the foot was lifted and moved forwards. [1] [2] Each limb must complete a cycle in the same length of time, otherwise one limb's relationship to the others can change with time, and a steady pattern cannot occur.
A woman exercising. In physiology, motor coordination is the orchestrated movement of multiple body parts as required to accomplish intended actions, like walking.This coordination is achieved by adjusting kinematic and kinetic parameters associated with each body part involved in the intended movement.
T45-47: Upper limb or limbs affected by limb deficiency, impaired muscle power or impaired passive range of movement Para Taekwondo (Prefix K used due to Korean word for sparring, ‘kyorugi’)
This is an accepted version of this page This is the latest accepted revision, reviewed on 27 December 2024. Self propulsion of a person through water This article is about standard human swimming. For competitive swimming, see Swimming (sport). For animal swimming, see Aquatic locomotion. For other uses, see Swimming (disambiguation) and Swimmer (disambiguation). A competitive swimmer ...
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