Title
For athletes, high altitude produces two contradictory effects on performance. For explosive events (sprints up to 400 metres, long jump, triple jump) the reduction in atmospheric pressure means there is less resistance from the atmosphere and the athlete's performance will generally be better at high altitude.
Title 2
Physiological respiration involves the mechanisms that ensure that the composition of the functional residual capacity is kept constant, and equilibrates with the gases dissolved in the pulmonary capillary blood, and thus throughout the body. Thus, in precise usage, the words breathing and ventilation are hyponyms, not synonyms, of respiration; but this prescription is not consistently followed, even by most health care providers, because the term respiratory rate (RR) is a well-established term in health care, even though it would need to be consistently replaced with ventilation rate if the precise usage were to be followed. The long barrow was built on land previously inhabited in the Mesolithic period. It consisted of a sub-rectangular earthen tumulus, estimated to have been 15 metres (50 feet) in length, with a chamber built from sarsen megaliths on its eastern end. Both inhumed and cremated human remains were placed within this chamber during the Neolithic period, representing at least nine or ten individuals.