This document discusses fatigue assessment, including local and systemic assessments. Local assessment examines muscular fatigue at the site of contraction through techniques like electrophysiological testing, decremental studies, EMG, MMT, and endurance testing. Systemic assessment considers fatigue at the whole-body level through measures of anaerobic capacity, blood lactate levels, aerobic capacity, and energy expenditure. Specific tests discussed include the Katch test, Wingate cycle ergometer test, and VO2 max as determined by the Fick equation. Multidimensional scales are also used to assess fatigue from different perspectives.

1. Fatigue Assessment
Dr. Khushbu Jariwala
M.P.T (sports)

2. Content
 Introduction
 Type
 Fatigue Assessment
 Local
 Systemic
 Scales
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3. What is fatigue????

4. Type
1. Local fatigue
2. General fatigue
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5. Fatigue Assessment
1. Local assessment
2. Systemic assessment

6. 1. Local assessment:
• Muscular fatigue
• Fall strength or firing ability of the
muscle fiber determine fatigue.
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7. 1. Local assessment: contd..
• Commonly used techniques
follows:
1.Electrophysiological testing:
2.Decremental studies
3.EMG
4.MMT:
5.Endurance testing:
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8. a) Decremental studies
• Repetitive stimulation of the all muscle
fibers.
• Supramaximal stimulation
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9. b) EMG
• Voluntary muscle contraction
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10. c) MMT
• Fatigue the strength generated by
muscle decrease.
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11. d) Endurance testing:
• Ability to work without rest
• Tendency of the muscle to develop
fatigue.
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12. 2. Systemic assessment:
a) Anaerobic assessment
b) Measurement of blood lactate level.
c) Measurement of aerobic capacity.
d) Measurement of energy
expenditure.
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13. a) Anaerobic fatigue:
• The hydrogen oxidation in respiratory
chain.
• Anaerobic glycolysis
• lactate accumulates in active muscle
and blood.
• Anaerobic fatigue and Rate of fatigue
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14. a) Anaerobic fatigue: contd..
Test:
1. Katch test
2. Wingate cycle ergometer test:
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15. a) Anaerobic fatigue: contd..
Katch test:
• Time: 40 sec
• Load :
• Anaerobic power:
• Anaerobic fatigue:
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16. a) Anaerobic fatigue: contd..
Wingate cycle ergometer test:
• Very popular and latest test.
• Anaerobic power , fatigue and total
anaerobic capacity.
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17. a) Anaerobic fatigue: contd..
WCET procedure:
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18. a) Anaerobic fatigue: contd..
Test score:
 Peak power output:
 Anaerobic fatigue:
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19. a) Anaerobic fatigue: contd..
 Peck power output:
PPO=force *distance/time
• {no of revolution*distance of
revolution}/time(min)
• 5 sec = 0.0083 min
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20. a) Anaerobic fatigue: contd..
 Anaerobic fatigue:
• Total capacity to produce ATP
• AF = [highest 5 sec pp – lowest 5
sec pp]/highest 5 sec pp*100
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21. b) Measurement of blood lactate level
• Anaerobic metabolism to give
energy.
• Lactate levels reach maximum.
• Energy storing and generation
pathway
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22. c) Measurement of aerobic capacity
• Lack of proper oxygen supply
• Long exercise during programmers.
• Maximal oxygen consumption which
is given by vo2max.
• Measured valve =ml/kg/min
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23. • Fick equation:
Vo2max= cardiac output *arteriorvenous O2 diff
(HR*SV) (Art O2-ven O2)
= Q*(a-v)O2
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24. d) Measurement of energy expenditure
• Open circuit portable spirometry
and telemetry.
• Spirometry testing:
• Telemetry or physiologic radio
transmission:
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25. Multidimensional fatigue scales
1. Brief fatigue inventory
2. Fatigue symptom inventory
3. Multidimensional fatigue
symptom inventory
4. Piper fatigue inventory
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26. References
1. Exercise physiology .McAardle, Katch and
Katch
2. Physiology of sport and exercise. Jack H.
wilmore, W Lany Kenney.
3. Physiotherapy in Neuro-condition. glady
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27. THANK YOU
QUESTIONS ??
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