HKIN 303 Midterm Exam LA | Questions And Answers Latest {2024- 2025} A+ Graded |
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How does dynamic variable resistance machines alter the resistance through the ROM of an exercise? -
it works to alter resistance through a ROM and accomodate the ROM at a joint
- it varies in its moment arm length, meanin, when force production is greater the moment arm will be
longer to provide greater resistance, when there is less torque, there will be less resistance and a
shorter moment arm
What are 5 biomechanical factors contributing to muscle strength and force production? - 1. Neural
Control
2. Muscle Cross-Sectional Area
3. Arrangement of Muscle Fibers
4. Muscle Length
5. Muscular Contraction Velocity
6. Joint Angle
7. Joint Aingular Velocity
8. Strength to Mass Ratio
9. Body Size
10. Pre-Stretching
11. Fiber Type
12. Force Velcoity Curve
13. Insertion Angle
14. Length from Axis
Cori Cycle - delivers lactate from the blood to the liver where it can be converted to glucose, maintains
steady lactate levels in high intensity exercises
OBLA - Onset of Blood Lactate Accumulation - occurs at 4mmol/L, training near OBLA allows athlete to
improve Vo2 max or maximal oxygen uptake without producing large amounts of lactate in the blood
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