HSC 308 Exam 3 Questions and Answers All Correct 2024 New Update
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Course
HSC 308
Institution
HSC 308
HSC 308 Exam 3 Questions and Answers All Correct 2024 New Update
What is the Physiological bases for Type 1 EAMC (Exercise associated muscle cramps) - Answer- Type 1 EAMC = muscle overload/fatigue
o Localized to overworked muscle
o Risks = poor stretching, age, history, high intensity
o Tre...
HSC 308 Exam 3 Questions and
Answers All Correct 2024 New
Update
What is the Physiological bases for Type 1 EAMC (Exercise associated muscle cramps)
- Answer- Type 1 EAMC = muscle overload/fatigue
o Localized to overworked muscle
o Risks = poor stretching, age, history, high intensity
o Treatment = rest and/or passive stretching
What is the Physiological bases for Type 2 EAMC? - Answer- Type 2 EAMC =
electrolyte deficits
o Excessive sweating Na+, Cl- disturbances
o Neuromuscular junction becomes hyper-excitable
o Treatment = prompt ingestion of fluids, massage, and/or ice
What is maximal oxygen uptake? - Answer- VO2max -- greatest rate of O2 consumption
during severe dynamic exercise.
Fick Equation - Answer- VO2 = Q - a-vO2 difference
Of what importance is VO2max to endurance performance? Why does the competitor
with the highest VO2max not always win? - Answer- • In endurance training, more
oxygen can be delivered to active muscles than in an untrained state
• Improvements in VO2 max allow individuals to perform endurance activities at a higher
intensity, improving their performance
• However, the competitor with the highest VO2max doesn't always win, lactate
threshold is a better predictor
Describe the changes in oxygen transport system that occur with endurance training. -
Answer- • The a-vO2 difference increases with training, particularly at maximal exercise
due to an increase in capillary density
What adaptations occur that the body makes in response to endurance training which
allows for an increase in Vo2max? - Answer- Aerobic capacity increases
o Has the ability to sustain prolong exercise and VO2 max improves
o 15-20% improvement on average
o only 2-3% improvement with individuals with high VO2 max
o up to 50% improvement with individuals with low VO2 max
, What metabolic responses occur with endurance training? - Answer- Lactate threshold:
o Point during exercise when lactate accumulates in the blood
o The higher the lactate threshold, the grater the performance capacity
o Very good indicator of aerobic performance
Skeletal muscle:
o More of:
mitochondria, mitochondrial enzymes, PDH, muscle glycogen, myoglobin, greater
capillary density, intramuscular triglycerides, enzymes involved in beta-oxidation
Metabolic Adaptations occur with resistance training? - Answer- Two energy systems:
mainly PCr and glycolysis
Define Undertraining - Answer- Insufficient stimulus to improve fitness/performance
(good for maintaining)
Define Overload/overreaching. - Answer- Systematic attempt in overstresing body for
short period of training
Define Overtraining - Answer- train or cause to train too hard for too long
Excessive training - Answer- extreme volume and/or intensity of exercise.
Overtraining Syndrome: Define and describe - Answer- Unexplained reduction in
performance, function for weeks months or years (either intensity or volume related)
o Early fatigue, decreased resting HR, decreased resting BP, rapid heart rate recovery
Describe the relationship between physical activity/exercise and immune function and
disease susceptibility. - Answer- Overtraining suppresses immune function
o Exercise during illness immune complications
o Abnormal decrease in lymphocytes and antibodies
o Increase in incidence of illness after exhaustive exercise
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