aerobic

Examples of aerobic in the following topics:

• Energy Requirements

  • Cardiac cells contain numerous mitochondria, which enable continuous aerobic respiration and production of ATP for cardiac function.
  • Aerobic metabolism is a necessary component to support the metabolic function of the heart.
  • Coronary circulation branches from the aorta soon after it leaves the heart, and supplies the heart with the nutrients and oxygen needed to sustain aerobic metabolism.
  • Myoglobin transfers oxygen from the blood to the muscle cell and also stores reserve oxygen for aerobic metabolic function in the muscle cell.
  • While aerobic respiration supports the normal activity of the heart, aerobic respiration may also provide additional energy during brief periods of oxygen deprivation.

• Aerobic Training vs. Strength Training

  • Aerobic activity relies on the availability of oxygen for energy production, whereas anaerobic activity utilizes primarily glycolysis.
  • These slow twitch fibers generate energy for ATP re-synthesis by means of a long-term system of aerobic energy transfer.
  • Aerobic respiration, typical of long-distance running and other forms of exercise involving endurance, uses predominantly Type I fibers, which resist fatigue for long periods of time .
  • A number of studies have examined the health benefits of aerobic and/or strength training in improving health and treating health issues.
  • Running a marathon is emblematic of extended aerobic exercise that employs Type I (slow-twitch) muscles for extended endurance, and prioritizes aerobic metabolic pathways.

• Exercise and Pregnancy

  • In the absence of complications, pregnant women should continue aerobic and strength training exercise for the duration of gestation.
  • Regular aerobic exercise during pregnancy appears to improve (or maintain) physical fitness.
  • Although an upper level of safe exercise intensity has not been established, women who were regular exercisers before pregnancy and who have uncomplicated, healthy pregnancies should be able to engage in high-intensity exercise programs (e.g., jogging and aerobics) for less than 45 minutes with no adverse effects.
  • The Clinical Practice Obstetrics Committee of Canada recommended that "all women without contraindications should be encouraged to participate in aerobic and strength-conditioning exercises as part of a healthy lifestyle during their pregnancy".

• Effects of Exercise on the Heart

  • Aerobic exercise promotes cardiovascular health, while physical inactivity is associated with increased morbidity and mortality.
  • Aerobic conditioning is a process whereby one trains the heart and lungs to pump blood more efficiently, allowing more oxygen to get to muscles, organs and the heart itself.
  • Aerobic conditioning and cardiovascular fitness are determining factors in athletic performance in events with a duration greater than two minutes.
  • Training for these events is done predominantly through cardiovascular exercise like running, swimming, aerobics, etc.

• Types of Shock

  • Circulatory shock is a life-threatening medical condition that occurs due to inadequate substrate for aerobic cellular respiration.
  • Circulatory shock, commonly known simply as shock, is a life-threatening medical condition that occurs due to inadequate substrates for aerobic cellular respiration.

• Muscle Fatigue

  • Long-term muscle use requires the delivery of oxygen and glucose to the muscle fiber to allow aerobic respiration to occur, producing the ATP required for muscle contraction.
  • In aerobic respiration, pyruvate produced by glycolysis is converted into additional ATP molecules in the mitochondria via the Krebs Cycle.
  • Muscle specified for high-intensity anaerobic exercise will synthesise more glycolytic enzymes, whereas muscle for long endurance aerobic exercise will develop more capillaries and mitochondria.

• Creatine Supplementation

  • Studies show that creatine supplementation has less positive effects for aerobic exercise, particularly endurance running.
  • This is a reflection of the differential energy pools used for anaerobic versus aerobic respiration, specifically the prioritization of use of phosphocreatine as an ATP pool for Type II muscles, which are primarily used during anaerobic exercise.

• Slow-Twitch and Fast-Twitch Muscle Fibers

  • The ATP required for slow-twitch fiber contraction is generated through aerobic respiration (glycolysis and Krebs cycle), whereby 30 molecules of ATP are produced from each glucose molecule in the presence of oxygen.
  • While much less efficient than aerobic respiration, it is ideal for rapid bursts of movement since it is not rate limited by need for oxygen.

• Impacts of Exercise on Muscles

  • Muscle specified for high intensity anaerobic exercise will synthesise more glycolytic enzymes, whereas muscle for long endurance aerobic exercise will develop more capillaries and mitochondria.

• Adjustments During Exercise

  • Aerobic and anaerobic exercise work to increase the mechanical efficiency of the heart.