KIN 311 Midterm Flashcards
What are THE 6 things
Safety, validity, reliability, precision, practicality, professionalism
Testing will accomplish
Identify Strengths and Weaknesses
Monitor & Evaluate Progress, Plateau, Decline
Improve the education process
Potential Health Status indicator
2 components of fitness
Performance related & health related fitness
6 criteria for assessment
- The variables measured are specific and relevant
- The assessments are valid and reliable
- Tests are administered at appropriate time & repeated at regular intervals
- The administration of the assessments are rigidly controlled
- The basic human rights of the individual/athlete are respected.
- The results of the assessment must be explained directly to the athlete in written and verbal form.
Is absolute or relative risk better for people to understand?
Absolute
What is 1 MET
3.5 ml/kg/min
Name 8 abnormal ECG responses for people with CHD
- Appearance of bundle branch block at a critical HR
- Recurrent or multifocal PVCs during exercise and recovery
- Ventricular tachycardia
- Appearance of bradyarrhythmia’s, tachyarrhythmias
- S–T segment depression/elevation of >1.0mm 0.08 s after J point
- Exercise bradycardia
- Submaximal exercise tachycardia
- Increase in frequency or severity of any
On an ECG, 5mm (5 boxes) is how many sec?
0.2sec
On an ECG, 1mm (1 box) is how many sec?
0.04sec
When do PVC’s need to be treated?
When they occur at a rate of >6 min
Myocardial Ischemia
S–T segment depression/elevation of >1.0 mm 0.08 s after J point
What should the FVC be within on multiple trials for it to be considered accurate?
+/- 150ml (ATS)
FVC
forced vital capacity
FEV 1s
forced expiratory volume in 1 s
FEV1/FVC
A measure of expiratory ability &
general resistance to expiration (%)
PEF
peak expiratory flow
LLN comparisons
compare test results with reference values
based on healthy subjects
Comparing shape of FVL
compare known disease or abnormal
physiological patterns
Exercise-Induced Bronchospasm (EIB)
A drop in FEV1 by 10% from pre-exercise value
indicates
Exercise Induced asthma
(EIA)
If ratio of FEV1 /FVC is reduced by 15% or
more
Anthropometry
Science that deals with
measurement of size, weight and proportion
of the body
Body Composition
Focuses on techniques to
measure body fat and lean body mass or fat
free mass
Height measured to nearest
0.5cm
Weight measured to nearest
0.1kg
BMI units
kg/m^2
BMI equation
Body mass (kg) / height^2(m)
Waist circumference health risk for men
> 102cm
Waist circumference health risk for women
> 88cm
Health risk waist/hip ratio in men
> 0.89
Health risk waist/hip ratio in women
> 0.78
General health risk waist/hip ratio
> 0.5
What compartment model is DEXA?
3 compartment: fat, bone, soft tissue
Skinfolds assessment
Compressed subcutaneous fat thickness via calipers
Underwater weighing
Fat mass, fat-free mass, total body volume via water displacement
Bioelectrical impedance analysis
Fat mass, fat-free mass, body water via imperceptible electric current thru body
Air displacement plethysmography
Fat mass, fat-free mass, total body volume via air displacement
Dual energy x-ray absorptiometry
Bone, fat mass, non-osseous lean mass via X-ray beams thru body
Ultrasound
Uncompressed subcutaneous fat thickness via imperceptible high-frequency sound waves
When should you not do skinfolds with the general public?
If BMI is over 30
Systematic error
situations that result in a unidirectional
change in scores on repeated testing
Examples of Systematic error
bias, learning, fatigue
Random error
variability both increases and decreases test
scores on repeated testing
Examples of Random error
imprecision, biological
Validity
Does a test, instrument, etc.
measure what it is supposed to measure?
Face Validity
Can be claimed when the measure appears to
obviously assess the target variable or
performance
Content Validity
The attempt to measure the desired parameter
or a defined domain of content. Is your
evaluation more than the sum of its parts?
Construct Validity
Can be claimed when the measures permit
inferences to be made about an underlying
trait(s)/abilities.
Criterion Validity
Evaluate the performance of your test against some criterion (i.e. usually another test which seeks to measure the same construct)
Concurrent validity
Can be claimed when a test measure is similar to a criterion (standard) or previously validated test measure.
Discriminant validity
“Have all of your athletes run a mile – the ones who come last will be your most powerful athletes
Predictive validity
Can be claimed when the measure taken, successfully predicts the criterion measure of a gold standard
Reliability
How consistent is a test or
measure?
Analysis of Variance (ANOVA)
The inferential test of mean differences across
trials. Assessment of systematic error. It detects how much change occurred from
one trial to the next
Intra Class Correlation (ICC)
A relative measure of reliability in
that it is a ratio of variances. Applied to specific populations
Systematic Bias
(Improvement) mean of the diff. scores. Bias should be minimized before calculating Typical Error.
Resting metabolic rate
Consisting of basal and sleeping conditions plus the metabolic cost of arousal (60-75%)
Thermogenic effect of feeding
Breaking down food consumed (10%)
Energy expended during PA/recovery
Influenced by: intensity, duration, efficiency, climate (15-30%).
Basal Metabolic Rate (BMR)
Minimum level of energy to sustain vital functions in the waking state
1 MET =
1kcal/kg/hour =
1 MET =
3.5mlO2/kg/min =
Procedure for measuring Resting Metabolic Rate (RMR)
No food for 3-4 h
No exercise for 12h
Lying quietly 30-60min in dim, thermoneutral room
Indirect calorimetry: VO2 =
5kcal/L O2 consumed
An accelerometer measures
Physical Activity is measured by
Low cut off for diabetes pre exercise
<5.5mmol/L
- consume 15-30g of CHO
High cut off for diabetes pre exercise
> 16.7mmol/L
* Postponing vigorous exercise (Type I more than Type II)
* Check Hydration
* Monitor other signs and symptoms
VO2 max test is gold standard for
assessing aerobic power’s golden standard is
Primary criteria for determining aerobic power (VO2max)
Peak and plateau (<150 ml/min) in oxygen consumption with an increase in work rate
Secondary criteria for determining aerobic power (VO2max)
A respiratory exchange ratio greater that 1.15.
Achievement of a maximum heart rate(HRmax).
Venous lactate concentration > 8 mM.
Rating of perceived exertion > 17 (6-20 original) or 10 (0 to 10 revised) Borg Scale.
Volitional exhaustion.
Aerobic power definition
Defined as the maximum rate at which O2 can be inspired, transported and utilized to perform muscular work
Which 3 sensors does a metabolic cart need?
O2 sensor
CO2 sensor
Volume sensor
VO2 formula F1N2
79.04%
VO2 formula F1O2
20.93%
Absolute VO2
The total volume of oxygen taken
up by the body (L/min)
Relative VO2
The volume of oxygen taken up by
the body relative to that person’s body weight (ml/kg/min)
Reasons for terminating a VO2max test
○ Drop in systolic BP of 10 mmHg with increase in workload.
○ Chest pain or angina.
○ Increasing nervousness (including dizziness, near fainting).
○ Signs of poor perfusion (cyanosis or pallor).
○ Abnormal ECG recording (if using).
○ Hypertensive response (> 250/115 mmHg).
○ Cramping, signs of extreme fatigue.
○ Failure of equipment
Bruce VO2max test is better for
older populations
Astrand VO2max test is better for
athletes
VO2max used the most
Bruce
Diagnostic stress tests
coronary artery disease & symptoms such as chest pain, shortness of breath or lightheadedness.
Functional stress tests
To assess a procedure that was used to improve coronary artery circulation
Prognostic stress tests
Assessing patients with risk factors
Absolute contraindications of exercise
➢ Acute MI (within 2 days)
➢ Acute pericarditis, myocarditis
➢ Pulmonary edema
➢ Severe aortic stenosis
➢ Dissecting aneurysm
➢ Hemodynamically unstable arrhythmia
Walking relative VO2 equation
VO2= (0.1S) + (1.8S*G) + 3.5
Treadmill relative VO2 equation
VO2= (0.2S) + (0.9S*G) + 3.5
Liability perspective
- Be a professional
- Pre-screening actions and intentions are important
- Pre-screening paperwork is important
- Don’t make it up as you go along
Risk mitigation perspective
- Ask before you do
- Explain before you do
- Listen, answer questions
- Get real acknowledgement from participants
Hyperpnea
Ventilation to match metabolic demand
Hyperventilation
Ventilation to remove excess CO2