Lecture 5 Flashcards
Purpose of fitness testing:
- educating about present fitness status relative to health-related standards, and -age/gender norms
- provide data that will assist in the development of ExRx
- collecting baseline and follow up data to evaluate effectiveness of ExRx
- motivate participants by establishing goals
- stratifying risk
- identify readiness to resume training
- research questions
- strengths and weaknesses of participant
Risk assessment:
identify hazards
decide who might be harmed and how*
evaluate risk and decide whether existing precautions are adequate or more should be done
record significant issues*
review assessment and revise if necessary
Equipment hazards:
Electrical hazards *
Entrapment hazards
Falls or trips
Physiological state or client hazards:
Cardiovascular complications
Fainting
Vomiting*
Musculoskeletal injury
Environmental hazards
Modifications to env – heat, cold, hypoxic, gas mixtures
Informed consent:
Explain purpose of test
Description of procedures, time commitments
Identify/describe risks, discomforts, benefits
Statements regarding confidentiality, anonymity, privacy
Id contact person regarding questions
Statement that it is voluntary, withdraw without fear of sanction anytime
Pre-test instructions:
Wear comfy, loose fitting clothing Drink plenty fluids 24hour prior Avoid food, tobacco, caffeine for x hours prior Avoid alcohol, strenuous ex 24 hr prior Get adequate sleep night before (6-8hrs)
Prior to participant arrival:
Have all forms, paper work required ready
Calibrate* equipment
Organise equipment and test space so test can follow in sequence w/out stressing same muscle group repeatedly
Ensure informed consent is obtained
Set room temp between 20-23deg* humidity <60%
Test order*
1 Resting measurements – HR rest, BP rest, ht, wt, body comp
2 cardiorespiratory endurance
3 muscular fitness
4 flexibility
Selecting appropriate tests
Energy system
Mode of ex
Muscle group
Mvmt type
How can you achieve standard conditions in each case?
Provide meals, food ex diary, pedometers, HR monitor
Timing devices:
Chronometers (stopwatch)
Counters e.g. rpm
Metronomes
*+/- 1rpm = ~2% error in Watts (1.3% error in VO2)
* +/- 6rpm = ~10% error in Watts (8% error in VO2)
Cycle ergometer advantages
Safer-less client apprehension Easier for blood sampling Improved audibility for BP assessment Reduction motion artifact for ECG Space efficient Less expensive
Cycler ergometer disadvantages
Less familiar mode of ex
Leg fatigue may limit ex before cardiopulmonary limitation is reached
Smaller total muscle mass decrease VO2 max
Work rate can be intrinsically regulated
Treadmill advantages
Most familiar motor patter
Large muscle mass -> larger vo2 max
Easy to calibrate
Treadmill disadvantages
Greater safety risk and client apprehension
Increased motion artifact and noise
More difficulty for collection of blood samples
Less space efficient
