Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Physiology > week 9 training > Flashcards

week 9 training Flashcards

1
Q

what 2 things from diet effect fatigue and performance

A

cho and hydration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what cns functions effects performance

A

arousal and motivation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what strength and skill effect performance

A

practice, natural environment , body type and fibre types

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

how does environment effect performance

A

altitude, heat and humidity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what anaerobic factors effect performance

A

PC, glycolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what aerobic factors effect performance

A

vo2 max, Q, o2 delivery, o2 extraction and mitochon.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what do the factors depend on

A

the performance itself

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is fatigue

A

inability to maintain power output or force repeated muscle contraction s which is reversible with rest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is central fatigue

A

cns -

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what is peripheral fatigue

A

neural, mechanical and energetics of contraction factors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

2 factors of centeral fatigue

A

reductions in motor units activated and firing frequency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

cns arousal can alter the state of fatigue by facilitating

A

motor unit recruitment and increasing motivation , or physical and or mental diversion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

excessive overtraining can cause

A

reduced performance and prolonged fatigue as well as brain serotonin to dopamine ratio activity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

fatigue is a conscious process and exercise will persist if

A

The motivation is greater than perceived exertion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

neuromuscular junction is a place for fatigue yes or no

A

no

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

where is the site for fatigue

A

sarcolemma and transverse tubules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

explain the basic concept of fatigue

A

the inability of na and k to maintain action potential amplitude and frequency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what can be imporved by training

A

na + k levels persistent during fatigue within the exercise

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

how does exercise help wrork through fatigue

A

block t tubules and reduced calcium release

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

peripheral fatigue mechanical factors depends on what 3 things

A

arrangement of myosin and actin, ca2 binding to troponin and atp availability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

high amounts of what contribute to fatigue

A

H+

22
Q

How does hydrogen contribute to fatigue

A

reduce force across bridges and inhibit ca2 release from SR and less force at ca2 concentration

23
Q

phosphate accum, inhibiting maximal force, reduced cross bridge binding to actin and ca2 release from sr is effected from what

A

atp imbalance for fatigue and atp requirements and atp generating capacity

24
Q

peripheral fatigue means that

A

the rate of atp utilization is slowed faster than rate of atp generation

25
Q

what is radicles

A

molecules with an unpaired outer orbital electron

26
Q

exercise promotes muscle ….

A

muscle free radicle production

27
Q

radicle production contributes towards

A

fatigue due to damage to proteins and lipids

28
Q

radicles effect the what pump

A

sodium and potassium , due to disruption of k homeostasis

29
Q

antioxidant supplements do not stop

A

fatigue

30
Q

ultra short events is what duration

A

10 seconds under

31
Q

ultra short events uses what muscle fibre types

A

2

32
Q

what 3 things are important for ultra short duration events

A

motivation , arousal and skill

33
Q

what is the primary energy for ultra short event

A

anaerobic glycolysis

34
Q

anaerobic glycolysis causes an increase in what

A

hydrogen and lactate

35
Q

h+ and lactate causes an increase in what

A

ca2 interference of binding with troponin and atp production

36
Q

how long is moderate duration exercise

A

3-20 min

37
Q

what percent of atp is generated aerobically at 3 min

A

60%

38
Q

what percent of atp is supplied aerobically at 20min

A

90%

39
Q

a high vo2 max is good for who

A

moderate distance

40
Q

what does a high vo2 max show

A

high stroke volume and arterial o2 as well as haem and o2 inspiration

41
Q

which muscle fibres are recruited

A

2x / 2a

42
Q

how long is intermediate events

A

21-60 min

42
Q

where does h+ come from

A

high levels of energy expenditure near vo2 max

43
Q

what threshold of vo2 max is intermediate

A

upper 90% vo2 max

44
Q

factors effecting intermediate

A

hydration, heat, lactate, environmental factors

44
Q

what is the duration of long events

A

1-4 hours

45
Q

factors that will impact long events

A

environment more than inter. Cho levels and hydration levels , electrolytes and diet

46
Q

why should endurance athletes adjust cho levels

A

muscle and liver glycogen decline and maintain cho oxidation

47
Q

is maximal o2 uptake important in endurance

A

yes - needing a strong vo2max of 80ml kg at 80% vo2 max

48
Q

FACTORS EFFECTING ULTRA ENDURANCE

A

Limited endurance, metabolic response, hyponatremia, other factors

48
Q
A

Physiology (18 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions