Final Exam pt3 Fatigue but gonna do it, God bless you! Flashcards
(65 cards)
what is one cause of fatigue related to energy systems?
PCr (phosphocreatine) depletion.
How does ATP depletion contribute to fatigue?
ATP depletion reduces the energy available for muscle contraction, leading to fatigue.
What role does glycogen depletion play in fatigue?
Glycogen depletion limits the availability of glucose for energy, causing fatigue.
How does hypoglycemia contribute to fatigue?
Hypoglycemia (low blood sugar) results in insufficient energy for sustained exercise, causing fatigue.
What is hypovolemia, and how does it cause fatigue?
Hypovolemia is low blood volume, which impairs circulation and oxygen delivery, leading to fatigue.
How does hyperthermia contribute to fatigue?
Hyperthermia (high body temperature) can impair cellular function and lead to fatigue.
How does metabolic acidosis cause fatigue?
Metabolic acidosis lowers muscle pH, impairing muscle function and contributing to fatigue.
How does disrupted neural transmission contribute to fatigue?
Disrupted neural transmission impairs the ability of the nervous system to send signals to muscles, causing fatigue.
What effect does disrupted brain activity have on fatigue?
disrupted brain activity can impair motor control and lead to fatigue.
What does PCr depletion mean for cells?
Cells run short of phosphocreatine, which is used to quickly generate ATP.
How does ATP depletion affect muscle cells?
When ATP cannot be produced at the needed rate, ATP levels drop in muscle cells, impairing muscle function.
How does PCr and ATP depletion limit exercise?
It reduces the capacity for high-intensity contractions, limiting performance.
what does glycogen depletion mean for muscles and liver?
glycogen deposits, the storage form of glucose, fall to low levels in muscles and the liver.
How does glycogen depletion limit exercise?
Less glucose is available for use as fuel, reducing the rate at which muscle cells can produce ATP.
: What does hypoglycemia mean?
Hypoglycemia refers to low blood sugar levels.
How does hypoglycemia limit exercise?
It reduces the uptake and use of glucose by the brain, nerves, and muscle cells, making exercise feel more difficult.
What are common symptoms of hypoglycemia during exercise?
Sweating, pallor, hunger, fatigue, irritability, anxiety, rapid heart rate, and lack of concentration.
What does hypovolemia mean?
Hypovolemia refers to low blood volume, often due to dehydration.
How does hypovolemia limit exercise?
It reduces cardiac output, the ability of the heart to supply blood to working muscles.
What are the common signs and symptoms of hypovolemia?
Weakness, fatigue, dizziness, and increased thirst.
What causes hypovolemia?
Dehydration, trauma, excessive fluid accumulation between cells, and medical conditions such as renal disease and congestive heart failure.
How is hypovolemia treated?
Oral hydration, IV fluids, and blood transfusions.
What is the diagnostic process for hypovolemia?
A blood test (CBC), urine test, X-ray, and MRI.
What is the effect of dehydration on the incidence of GI discomfort?
Dehydration increases the incidence of gastrointestinal discomfort.