Lecture 4 sandra Flashcards
Energy pathways
ATP can be generated anaerobic and aerobic. It is automatically selected
Feeding in relation to exercise
Replenishment of glycogen stores afterward. Feed your horse after exercise, that prevent tying up and colic. It restores the used glycogen during exercise.
Muscle lactate metabolism
- The end product of anaerobic glycolysis, pyruvic acid, is concerted to lactate
- Lactate is not a waste product but a by-product of anaerobic pathways in the muscle
Cori cycle
Refers to the metabolic pathway in which lactate produced by anaerobic glycolysis in the muscles moves to the liver and is converted to glucose
Muscle lactate during exercise
During exercise lactate is formed in the working muscles and the flow of lactate is from muscle cells into blood plasma, heart and liver tissue. They use lactate for energy and glucose production
Muscle lactate during recovery
During recovery the direction of lactate flow is reversed, the main user of lactate is skeletal muscle. Light exercise during recovery period increase muscle energy and will also increase the rate of lactate disappearance
Measurement of lactate breakpoint
The velocity at which blood lactate begins to accumulate in the blood
Muscular response to training
- Increased oxygen uptake
- Metabolic changes
- Increased efficiency
Skeletal response to training
- Bone growth and remodelling
- Cartilage, tendons and ligaments
Fatigue during training
- Important signal in training
- Psychological signs
- Character or will to win
- Fatigue depends on type of exercise
- Depletion of muscular fuel stores
- Hyperthermia
- Altered fluid and ion balance
Stress
- Physioloical stress is necessary
- Role of hormones adrenaline and cortisol
- Flight or fight response
- Variety of bodily reactions
- Adaptations
Packed cell volume
What is in the blood when you would distract is form the plasma
Spleen and red blood cells q
Spleen stores red blood cells. After contraction red blood cells in blood can double
