Final-exercise testing/ body comp

Question 1

contraindications to symptom limited maximal exercise testing (absolute contraindications)

Answer 1

-acute myocardial infarction within 2d
-unstable angina
-cardiac arrhythmia
active endocarditis
-symptomatic severe aortic stenosis
-heart failure
-acute myocarditis

Question 2

Contraindications to symptom limited maximal testing (relative contraindications)

Answer 2

• known obstructive left main coronary artery stenosis
  -Mod to severe stenosis
  tachyarrthmias with uncontrolled ventricular rates
  -recent stroke or ischemia attack
• complete heart block
  -mental impairment
  -resting hypertention

Question 3

indications for terminating a symptom limited maximal exercise test (absolute)

Answer 3

• ST elevation
• drop in systolic BP >10mmhg
• mod to severe angina
• CNS symptoms
• Tachycardia or other arrhthmias
• request to stop

Question 4

Indications for terminating a symptom limited max test (relative)

Answer 4

- marked St displacement
drop in systolic bp in absence of other evidence of schema
-increasing chest pain
-fatigue
-arrhythmias other than tachycardia
-if ox saturation drops below 80%

Question 5

the normal systolic bp response to exercise is

Answer 5

10mmhg per 1 met

Question 6

normal response of ECG (P wave, PR segment and QRS)

Answer 6

P- increases amplitude

PR- shortens and slopes downward

QRS- duration decreases

Question 7

T wave and QT interval during exercise normal response

Answer 7

T- decreases amplitude early in exercise, returns to pre exercise amplitude at higher intensities

QT interval- absolute QT interval decreases

Question 8

Considerations that may necessitate adjunctive imaging when the indication is the assessment of ischemic heart disease

Answer 8

• resting ST segment depression
• ventricular paced rythma
• left ventricular hypertrophy
• left bundle branch blood

Question 9

criteria used to confirm that maximal effort has been elicited

Answer 9

-plateu in VO2
-Failure for HR to increase w workload
-lactate conc of >8
-RPE >17/7
RER >1.10

Question 10

limitations of the two compartment model (body compo)

Answer 10

• inability to measure essential vs excess fat storage

- mant underlying assumptions ( assumes body is either lean or fat tissue)

Question 11

hydrostatic weighing pros/cons

Answer 11

-percise

• time consuming
• difficult for aqua phobic
• impractical for many pops

Question 12

DEXA

Answer 12

simple procedure, takes on 15mins

not readily available

Question 13

Bioelectric impedance pros/cons/guidlines

Answer 13

• quick and easy
• assumes body is cyndrical
• fast at least 4 hr
• avoid exercise
• water content changes things

Question 14

BIA health weight target ratios lean muscle: Fat weight

Answer 14

men- 1:1

women- 1:1.5/2

Question 15

1 pound of fat is equivalent to how many cals

Answer 15

3500