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Body in Action(d) Performance . SQA QUESTIONS. Muscle fatigue WYSK. ontinuous. apidly. atigue. C_________ or r________ repeated contraction of muscle results in f________. Muscle fatigue results from a lack of o_______ and a build up of l______ a____.

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muscle fatigue wysk
Muscle fatigue WYSK

ontinuous

apidly

atigue

  • C_________ or r________ repeatedcontraction of muscle results in f________.
  • Muscle fatigue results from a lack of o_______ and a build up of l______ a____.
  • When muscles cannot get enough o_______ they use a__________ respiration to get e______. Anaerobic respiration gives only a l______ energy and releases lactic acid which causes f_______.
  • Equation of anaerobic respiration
  • G________ l_____ acid + little e_____

xygen

actic

cid

xygen

naerobic

nergy

ittle

atigue

lucose

actic

nergy

exercise and training wysk
Exercise and training WYSK

xygen

  • When we exercise our muscles need more o________.
  • Our b_______ rateincreases so that the lungs can take in more o_______ and make the bloodmore o________ rich.
  • Our p____ rateincreases to make the blood flow round the body f______ to deliver more o_______ to the m________
  • With exercise , the p____ rate, b_______ rate and l_____ a_____ levels rise less in an a_______ than in an u________ person

reathing

xygen

xygen

ulse

aster

xygen

uscles

reathing

ulse

cid

thlete

actic

ntrained

recovery time wysk
Recovery time WYSK

eturn

ulse

reathing

  • Recovery time is the time taken to r_______ to normal levels of p______ rate, b______ rate and l______ acid.
  • Recovery time will be s_______ in an athlete than in a person who is u______.
  • Training improves the e________ of the lungs and circulation e.g.
  • The heartincreases in s____ and s________ and so p_____ blood round the body f______
  • The lungsincrease in v_______ and can absorb m____ oxygen

actic

horter

ntrained

fficiency

ize

trength

umps

aster

olume

ore

slide5

50

40

X

X

X

30

X

X

20

10

Time at start of sprint (s)

slide6

50

40

30

20

10

Time at start of sprint (s)

90

75

Distance decreases

Repeat the experiment

slide7

oxygen

Lactic acid

slide8

70

80

15 – 9 = 6

180 – 80 = 100

slide9

20

110

88,89,90

slide10

20

80

38

slide11

900 ÷ 300 = 3

12000 ÷ 1200 = 100

Decrease = 900

% decrease = 900 ÷ 1500 = 0.6

0.6 x 100 = 60%