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The body uses this energy pathway for lower intensity exercise that lasts longer than three minutes, which corresponds to the rate at which the body produces ATP using oxygen. [3] This energy system is essential to endurance athletes such as marathon runners, triathletes, cross-country skiers, etc. The Aerobic Energy Pathway is able to produce ...
Bioenergetic systems are metabolic processes that relate to the flow of energy in living organisms. Those processes convert energy into adenosine triphosphate (ATP), which is the form suitable for muscular activity. There are two main forms of synthesis of ATP: aerobic, which uses oxygen from the bloodstream, and anaerobic, which does not.
ATP production via aerobic pathways can further be limited by glycogen depletion. [22]: 56–57 Free Fatty Acids serve as a sparing mechanism for glycogen stores. The artificial elevation of these fatty acids along with endurance training demonstrates a marathon runner's ability to sustain higher intensities for longer periods of time.
Humans have a high capacity to expend energy for many hours during sustained exertion. For example, one individual cycling at a speed of 26.4 km/h (16.4 mph) through 8,204 km (5,098 mi) over 50 consecutive days expended a total of 1,145 MJ (273,850 kcal; 273,850 dieter calories) with an average power output of 173.8 W. [10]
Long slow distance (LSD) is a form of aerobic endurance training used in sports including running, [1] rowing, [2] skiing [3] and cycling. [ 4 ] [ 5 ] It is also known as aerobic endurance training, base training and Zone 2 training. [ 6 ]
Once improvement in aerobic conditioning is apparent, for example in metabolism and oxygen uptake, the body progressively adapts to further training. [20] Aerobic conditioning can be anywhere from walking on the treadmill to mowing the lawn. The average healthy person should engage in 150–200 minutes of moderate aerobic exercise every week.
Aerobic exercise, also known as cardio, is physical exercise [1] of low to high intensity that depends primarily on the aerobic energy-generating process. [2] " Aerobic" is defined as "relating to, involving, or requiring oxygen", [ 3 ] and refers to the use of oxygen to meet energy demands during exercise via aerobic metabolism adequately. [ 4 ]
the separation between start and finish must not be more than 50% of the length of the course; The second condition is intended to ensure that a course is not designed in such a way that a tail wind may improve times unduly, but does not apply for the purpose of establishing Olympic and World Championship qualifying times. [2]