M1 Flashcards

1
Q

as velocity increases what does this mean for crossbridge and force generated

A

number of crossbridges decreases - less force generated

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2
Q

at what type of contractions is force the highest

A

eccentric

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3
Q

as eccentric forces are the highest when there is an unusal contraction what will this create

A

DOMS

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4
Q

what does DOMS stand for

A

delayed onset muscle soreness

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5
Q

in the force and velocity relationship what do actin and myosin do

A

attach and detach at different rates

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6
Q

between power and endurance athletes who produces more torque at all velocities

A

power

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7
Q

what is the order of motor units recruit - what does it mean by the size principle

A

smallest to largest

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8
Q

what muscle fibres are used first ( which ones are the smallest

A

Type 1 - slow muscle fibres, oxidative, greater resistant to fatigue able to go for the longest

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9
Q

what are 2 benefits of size principles

A
  1. use fatigue resistant - smallest, type one fibres longer
  2. finer regulation with low force
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10
Q

out of power and endurance athletes who produces more torque

A

power

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11
Q

velocity force graph if velocity is low is length important

A

yes

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12
Q

what greater % does men have have over women for upper body and lower

A

50% upper
30% lower

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13
Q

how much strength have you lost by the time you are 80 years old and why

A

50%
loss of type 2 fibres

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14
Q

what are some examples of air braked ergometers

A

erg, watt bike

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15
Q

T/F with air braked ergometers resistance, work rate increase exponentially with cadence

A

true

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16
Q

what are some examples of friction brakes erg

A

monark cycle

17
Q

with friction bracked ergo WR increases linearly with cadence (T/F)

A

true

18
Q

what are some examples of electromagentically braked ergo

A

velotron (what we did VO2 max test on )

19
Q

for electromagnetically braked ergo does resistance varies inversely with cadence

A

true