1
Q
List a sport and explain what system and muscle type is involved?
A
Volleyball: Anerobic
- Short bursts of activity, explosive movements, quick rallies, uses both type 1 and type 2 muscle fibers and mostly fast twitch muscle fibers.
2
Q
What method of body comp is the most accurate?
A
- DEXA
- Hydrostatic Weighing
- BMI - worst
3
Q
3 way BI is convenient?
A
Simple, Quick, Inexpensive
4
Q
3 negatives of BI?
A
Underestimate fat mass, overestimate fat-free mass
5
Q
Explain how the nervous and endocrine system work?
A
- Hypothalamus
- Distress signal
- Sympathetic nervous system
- Adrenal glands
- Epinephrine (adrenaline)
- Blood stream
- Heart rate increases
- Blood to muscles
- Blood sugar released from fats
- ACH is released and it sends the message to the muscles triggering voluntary movement
(Explain muscle movement)
ACH allows action potential to travel across sarcoplasm, down t-tubules, depolarization, into SR where calcium is released, calcium binds to troponin, revealing actin- myosin binding site, cross bridge, power stroke, contraction, repeat or homeostasis.
