Lab Exam 2 Flashcards
AnT is…
transition from aerobic energy production to anaerobic energy production (huff and puff)
Training near AnT will…
optimize the cardiorespiratory adaptions and benefits of training
Identify the breakaways
- VE vs VO2/workload
- Lactate acid production rate vs VO2/workload
- CO2 production rate vs VO2/workload
- Peaking out in the FECO2 and bottoming out in FEO2 as workload increases
- Rating of RPE
VO2 max =
The maximal rate at which oxygen can be consumed per min
What can VO2 be used as
Fitness guidelines
Endurance
Power and capacity
Greater VO2 max =
Greater endurance, ability to do greater workload
Criteria for achieving VO2 max
- Plateau or decrease in VO2 as workload increases
- HR is within 10bpm of age predicted maximal HR
- R value is greater or equal to 1.0
- RPE of 18-20 (very very hard)
How do you identify VO2 max
The highest VO2 value achieved during a graded maximal effort exercise test
Used original RPE scale during the lab test (6-20), revised (0-10)
VO2 max is expressed in
l/min (unsupported exercise)
OR
ml/kg/min (bodyweight supported exercise)
What is the fitness classifications based on VO2 max
LOW
Female: <= 29 ml/kg/min
Male: <= 34 ml/kg/min
60-70% of HR max 50-60% of HRR 50-60% of VO2 max RPE (fairly light to somewhat hard) Breathing is comfortable, unaware 20-30mins, 3 days a week
What is the fitness classifications based on VO2 max
MODERATE
Female: 30 - 44 ml/kg/min
Male: 35-49 ml/kg/min
70-80% of HR max 60-75% of HRR 60-75% of VO2 max RPE is somewhat hard to hard Aware of breathing 30-45mins, 4 days a week
What is the fitness classifications based on VO2 max
HIGH
Female: >= 45 ml/kg/min
Male: >= 50 ml/kg/min
80-90% of HR max 75-85% of HRR 75-85% of VO2 max RPE = 15-17 hard to very hard Respiratory distress 45-60 mins, 5 days a week
What are the 3 asssumptions that the bicycle ergometer tests are based upon
- Oxygen uptake rate (VO2) is directly related to workload
- HR is linearly related to workload
- VO2 is linearly related to HR
What is the protocol for submax bicycle ergometer test
2min of 50RPM
If fit or large = 1kg workload
If unfit or smaller/older = 0.5 workload
2min work periods
Take HR during last 30 secs of initial workload and then last 30 secs of each workload
If HR is < 60% of PHR max then go up by 1 resistance
If HR is between 60-70% of HR max then go up by 0.5 resistance
If HR is over 70% the continue in this workload for another 2 mins
Average the final HR in last two mintues = steady state Calculate VO2 max using: Correction factor BW to KG VO2 max = ml/min Then divide by body weight for ml/kg/min
What are the Erroneous factors within the test
Talking while performing test
Taking HR too early/late
What is the protocol for pulmonary functioning test
Record barometric pressure
Flush spirometer 3-4 times and fill with oxygen half way
Tidal volume definition =
Volume of expired or inspired air
Increases during exercise
NO CHANGE IN RESTING WITH CHANGING
Inspiratory reserve volume definition =
Max volume inspired from end inspiration
Decreases during exercise
INCREASE WITH TRAINING
Expiratory reserve volume definition =
Max volume expired from end expiration
Slight decrease during exercise
INCREASE WITH TRAINING
Residual volume definition =
Volume at the end of max expiration
Slight increase during exercise
INCREASE WITH TRAINING
Total lung volume definition =
Volume after max inhalation
Slight decrease during exercise
INCREASE WITH TRAINING
Vital capacity definition =
Max volume forcefully expired after max inhalation
Slight decrease during exercise
INCREASE WITH TRAINING
Inspiratory capacity definition =
Max volume inspired from resting expiratory level
Increase with exercise
INCREASE WITH TRAINING
What are the residual volumes for females and males
VC x 0.28 = female
VC x 0.24 = male
FEV1 =
H - D x BTPS (L)
FEV2 =
I - D x BTPS (L)
FEV3 =
J - D x BTPS (L)
A =
First max expiration
B =
Resting expiration
C =
Resting inspiration
D =
Max inspiration
H =
Air expired at 1 sec
I =
Inter air expired at 2 secs
J =
Max expiration at 3 secs
If J is greater than A, which do we use, and for what values
J
For VC and ERV
What are the average values for FEV
FEV1 = 75-80% of VC FEV2 = 85-90% of VC FEV3 = 95-100% of VC
What are the factors that affect volumes and capacities
Body size Gender Age Lung volumes are smaller in supine position than upright - due to more blood flow and displace diaphragm position towards the thoracic capacity Physical activity
Two components of body composition =
Lean tissue
Fat
Lean tissue density =
1.10 gm/ml
Fat density =
0.9 gm/ml
Archimedes principle
An object immersed in a fluid loses an amount equivalent to the weight of the fluid for which it is displaced in
In underwater weighing, the amount of water displaced is…
Equal to the persons body volume
Body volume (UWW) =
Weight in air minus weight in water
Body density (UWW) =
BW / Body volume
Body weight from lbs to KG =
Lbs/2.2
Body volume =
Body weight on land - true underwater weight
Equals the weight lost when underwater
Body density =
What is the range between
BW / BV
Range = 1.0000 - 1.1000
% BF =
((4.57 / body density) - 4.142) x 100
% LMM =
100 - %BF
Lean body weight goal =
Current LBW / Desired % of LBW
Weight loss =
Current weight - LBWG
Body volume (end equation) =
(BW - TUWW) / D H2O
- RV
Then - 0.1
Residual volume =
(VC x BTPS) x (0.28 or 0.24)
What are the causes of 95% of obesity
Regulatory obesity
- Excess caloric consumption due to easy availability to food
- Lack of daily physical activity
- Association of food with emotional responses
- Social and cultural pressures of food consumption
Medical abnormalities of obesity
Coronary disease Impaired CHO metabolism Endocrine disorders Hypertension High Blood pressure High blood glucose
Types of obesity are
Hypertrophic
Hyperplastic
What is hypertrohic obesity
Overtime, increase of fat cell size
What is hyperplastic obesity
Childhood obesity, 80% carry over to adulthood, increase of fat cell size and number
Factors of caloric intake
Food energy value
Absorption
Type of food
Quantity
Factors of caloric expenditure
Basal metabolic rate
Physical activity level
Food processing
Exercise benefits for obesity
Increased cumlative caloric expenditure
Counter acts decrease in basal metabolic, typically associated with aging
Prevents loss of lean body weight associated with caloric restrictions
Compliments behaviour modifications and establishment of a more heathly lifestyle
Body build =
Greater muscle mass =
Higher metabolic resting rate =
Greater caloric expenditure
Anthropometric measures are:
Circumferences
Skinfolds
Diameters
Circumference measurements are done in…
Tissues =
cm (nearest 0.1)
Average L + R extremities
L+R extremities should be within 1 cm of each other
Tissues = fat, muscle and bone
Skinfold measurements are done in…
Tissues =
mm = round to the nearest 0.6 mm
Tissues = Fat
Diameter measurements are done in…
cm = rounded to nearest 0.1
Average L + R extremities
L+R extremities should be within 1 cm of each other
Tissue = Bone
Where should you perform skinfolds
Only on the right side of the body
Factors for selecting equation
Sex Age Athlete vs non athlete Race / Ethnicity Statistical considerations: High R value = correlation between actual body density from UWW and predicted Bd from S and C Lowest S.EE
Calculation for Fat Weight =
BW (kg) x (%BF / 100)
Standards for % body fat for males and females
Males 4% = Min Fat 5-13% = Athletes 10-25% = Optimal health 12 - 18% = Optimal fitness > 25% = Obese 15% = 50th percentile
Females 8-12% = Min Fat 12-22% = Athletes 18-30% = Optimal health 16-25% = Optimal fitness > 30% = Obese 25% = 50th percentile
Somatogram (Average L + R)
Uses…
Measures…
Indicated by…
Values indicate…
Circumferences
Measures body proportionality, BW to frame size to see what areas need slimming down
Indicated by wrist, knee and ankle proportions
< 95 overweight
> 105 underweight
Reference Weight (Add L + R)
Uses…
Establishes…
Important info…
Uses diameters and height
Establishes needed changes in fat weight and LBW to adjust overall body weight
In diameters you push down to the bone structure
Goes one step further than LBW Goal
Somatotypes are
Endomorphy - Fat (3 skinfolds)
Mesomorphy - Muscularity (skinfolds, diameters, and circumferences)
Ectomorphy - Linearity (Height and BW)
Overweight =
Underweight =
< 95 proportions
> 105 proportions
What is the normal “body build” indicated by
When all proportions are between 95 - 105
BW / Frame size uses what body parts
Wrist, Knee, Ankle proportions OW and UW here
Endomorphy is where
there is excessive body fat distribution
Large proportion in abs, chest , hips, thighs
Mesomorphy is where
Pronouced muscle development
Large proportions in forearm, shoulder, calf, flexed arm
What is the body constant used for males and females in ref. weight
Male = 31.58
Female = 31.10
Body density should be how many decimal places
4 decimals
Reference weight =
Equation…
Two ifs…
If you know the % fat of current BW…
How much BW an individual should have
Total diameter / body constant = A
A^2 x H^t = B
B x 0.0111 = reference weight
If BW - reference weight > 5kg = overweight
If BW - reference weight < - 5kg = underweight
If you know the % fat of current BW, you can find the change in FW from current to goal.
Endo + Meso
Straight forward
In tricep and calf for meso you take the circumference and subtract (skinfold / 10) to get it into cm
Ecto
Equation
Height / 3(square root) WT
BMI interpretations
< 18.5 = underweight
18.5 - 24.9 = normal
25.0 - 29.9 = overweight
> 30 = obese
AnT is the last
Oxygen uptake rate value fitting the linear trend between expired VE and VO2
VO2 Max is considered to be on the Borg scale
18-20 = Very very hard
AnT is considered to be on the Borg scale
15-16 = hard
What are the %s of the Expiratory volume at 1,2 and 3 seconds
1 second = 75-80% of vital capacity
2 seconds = 85-90% of vital capacity
3 seconds = 95-100% of vital capacity
All calculations in the pulmonary lab are to be to how many decimals?
2 decimals
When working out residual volume, what do we times the vital capacity by
- 28 for females
0. 24 for males
IC =
IRV + TV
VC =
ERV + IC
TLC =
VC + RV
FRC =
ERV + RVt
Functional residual capacity (FRC) definition =
Volume in lungs at resting expiratory level
Slight increase during exercise
INCREASE WITH TRAINING
% body fat =
- 57 / BD
- 4.142
x 100
What vital capacity do you use out of the 3 you get from underwater weighing
The heaviest
Obesity is defined as
% body fat more than 25% (male) and 30% (female)
Regulatory obesity accounts for…
95% of obesity
Caloric intake with expenditure
What happens to body weight as caloric balance changes from…
Positive
Iso
Negative
Positive = gain Iso = stable Negative = loss
Errors that can occur during each test
Standard error of estimate
Air in swim suit
Not loading the paper correctly
A couch potato would have a _____ R and _____ S.E.E
An athlete would have a ______ R and ______ S.E.E
What does R stand for
What does S.E.E stand for
High R, Low S.E.E = higher accuracy
Low R, High S.E.E - lower accuracy
R stands for correlation between actual BD from underwater weighing and predicited from skinfolds or circumference
S.E.E stands for standard error of estimate
LWB =
BW - FW
Tidal volume equation =
(B - C) x BTPS
Inspiratory reserve volume equation =
(C - D) x BTPS
Inspiratory capacity equation =
(B - D) x BTPS
IRV + TV
Expiratory reserve volume equation =
(A - B) x BTPS (USE J IF ITS HIGHER THAN A)
Vital capacity equation =
(A - D) x BTPS (USE J IF ITS HIGHER THAN A)
ERV + IC
Residual volume equation =
VC x 0.24 or 0,28
Total lung capacity equation =
VC + RV
Functional residual capacity equation =
ERV + RV
Percent vital capacity equation for each FEV =
FEV(1,2,3) / VC
What is the equation for BMI
BW / height^2
What is the conversion for inches into cm
1 inch = 2.54 cm
How fast does the respiratory machine move in FAST mode
32 mm per second
1920 / 60 = 32
The effects of endurance training on VO2
Oxygen uptake
At:
Rest
Submax Exercise
Max Exercise
No change
Decrease
Increase
The 5 things that are affected by endurance training on VO2
Oxygen up take Cardiac output Stroke volume Heart rate A-V O2 diff
The effects of endurance training on VO2
Cardiac output
At:
Rest
Submax Exercise
Max Exercise
No change
Decrease
Increase
The effects of endurance training on VO2
Stroke volume
At:
Rest
Submax Exercise
Max Exercise
Increase
Increase
Increase
The effects of endurance training on VO2
Heart rate
At:
Rest
Submax Exercise
Max Exercise
Decrease
Decrease
No change
The effects of endurance training on VO2
A-V O2 Diff
At:
Rest
Submax Exercise
Max Exercise
No change
Increase
Increase