lab exam exs phys

How do you convert meters to inches?

meters/0.0254 = inch

how do you convert lbs to kg

lbs/2.205 = kg

how do you convert Fahrenheit to celsius

(F-32) x 5/9 = C

How do you use a scale

take a known weight, 5 lbs weight on plate and the scale reads 5lbs, in order to calibrate it

what needs to be removed before stepping onto a scale

shoes, heavy clothing, stuff in pockets, jewelery

how do you walk someone through a sit and reach test

Stretch hamstrings and lower back before, sit on floor feet flat against box (no shoes), sitting up straight, deep breath in then slowly drop head, no bent knees

how do you place hand grip dynamometer in subjects hand

Middle of bar should rest at their phalanges

What happens to RER during a graded exercise test

While intensity is going up, RER is increasing the entire time

why do carbs rise towards 1 on RER scale when exercising

you burn more carbs while you exercise

when you exercise you make a lot of ____ so therefore blood pH will ____

acid; decrease

what happens to epinephrine as you exercise

curvilinear in positive direction (increases)

what happens to oxygen uptake during prolonged exercise at constant speed

initial increase and then reaches steady state (plateaus) for the rest of the run

what is the units for relative VO2 (fill in the blank question)

ml/kg/min

of the following tests from lab 3 tests which is muscular power?

vertical or horizontal jump

Identify a test of ischemia

• using blood pressure cuffs but only on one arm

• tourniquet on arm so blood supply is shut off

what are the 5 components of health related fitness?

• muscular strength, muscular endurance, flexibility, body composition, cardiovascular endurance

• NOT MUSCULAR POWER

what is the definition of muscular strength

maximum force a muscle can generate over one repitition

protocol for performing a bench press test

• spotter, safety clips on bar, complete contact on body on bench, breathe in when weight is coming down

what is relative muscular endurance

each subject presses a different total weight, but everyone is working out at the same intensity relative to themselves

identify an example of static muscular strength test

handgrip test

when do you calculate peak power

within the first five seconds of the test

what does the wingate test measure?

anaerobic ability in 30 seconds

what is the resistance a subject uses on a wingate test

resistance is 7.5% of the body weight

when do you calibrate a lactate plus analyzer

at the beginning of test

how do you calibrate a lactate plus analyzer

drop of lactate control solution into and and will read the amount that’s in the vial

what fingers do you prick for a lactate test

index and middle finger

what does the lactate look like on a graph

linear in positive direction

when does the lactate line curve up?

at 4 mmol (lactate threshold)

where does lactate acid come from

glycolysis

GRAPH- what happens to blood lactate?

**graded exercise, room temp, sea level, treadmill, sedentary life, 20 yrs old

• y-axis: blood lactate with unit (mmol/L) number 0-14

• x-axis: percent VO2 max (0, 25, 50, 75, 100)

• Line should start below 1 and curve up at 4 mmol

• Sedentary ppl tend to hit lactate threshold between 50-60%

• Line needs to fully go across the x-axis don’t have it stop at 75% (for example)

what is a sphygomomanometer

blood pressure cuff

how do you take heart rate

carotid artery —> only index and middle finger; gentle to medium pressure

what are you listening for when it comes to blood pressure?

Korotkoff sounds for systolic BP and when they disappear that’s diastolic

where do you take blood pressure from

left brachial artery (bc closer to heart)

what is MAP formula

MAP = DBP + 0.33(SBP-DBP)

what is double product

measures how hard the heart is working

what happens to SBP from lying down to immediately standing

decrease/drop

what is a discontinuous graded exercise test

getting rest between each increased workload

in words, what happens to heart rate as exercise intensity goes up

increases linearly

during graded exercise test, what happens to SBP

increase linearly

what happens when lifting weights

DBP will increase as well as SBP

graph heart rate during a graded treadmill test, 20 yr old, sedentary

• y-axis: HR(bpm). start at 0, highest to go up is 200 (220-age)

• x-axis: % VO2 max (25, 50, 75, 100)

• DONT START AT ZERO

  • start at 75 and reach 200 when you get to 100% VO2 max

graph SBP and DBP same graph, same scenario as above

• y-axis: blood pressure (mmHg); start at 0 go up to 240 (count by 50)

• x-axis : %Vo2 max

• label both lines

• SBP: start at normal RBP (120) and go up in linear fashion to 240mmHg (at 100% vo2)

• DBP: start at normal RBP (80) and it does not change!!! (make it a dotted line across)

definition of FVC

definition of FEV1

definition of FEV/FVC ratio

definition of PEF

know equipment to measure lung volume and flow rates

spirometer

what is restrictive lung disease

reduced TLC, but flow rates are normal (airway not affected), less lung tissue

Lungs don’t limit….

exercise performance

Lung volumes are based on what/function of what

height and age (taller ppl tend to have bigger lung volume, older is less)

what is extrapolation

process of constructing new data points outside a discrete set of known data points

how to calculate max HR

max HR = 220- age

what should be a on bar graph

title, x and y axis, labeled

what should a correlation graph have on it

r squared value (greater than .7 = highly related)

definition of conduction

definition of convection

definition of radiation

definition of evaporation

what happens to blood volume if you don’t drink water during prolonged exercise

sweat out plasma portion of blood; total blood volume decreases, SV decreases, HR increase

what happens to percent oxygen in air at altitude

stays the same

cardiac output graph

• graded exercise test, sedentary

y-axis: Q (L/min) don’t go higher than 25 or 30; START at 5

x-axis: %VO2 max

HR goes up linearly

SV plateaus around 40-60%

start at 5 go to 15 at like 50% and go up to 22 when you get to 100%

put inflection point of where it changes