Textbook Notes (362,991)
Canada (158,132)
EDKP 350 (4)
Chapter 4

# Chapter 4.docx

9 Pages
89 Views

School
McGill University
Department
Kinesiology&Physical Education
Course
EDKP 350
Professor
Celena Scheede- Bergdahl
Semester
Fall

Description
Physical Fitness Assessment Methods: EDKP 350/ 2012 Chapter 4 Assessing cardiovascular fitness 10/15/2012 10:50:00 AM Cardiorespiratory Endurance  Ability to perform dynamic exercise involving large muscle groups at moderate-to-high intensity for prolonged periods (ACSM 2000)  Criterion measure is VO2max * Could ask how to do VO2max calculation in text book Assessing capacity for muscles to use it  Vo2max is the most valid measure of the cardiorespiratory systems functional capacity  VO2max reflects o Maximal ability of cardiorespiratory system to deliver O2 and nutrients to muscles used o Ability of muscles to use them VO 2eak Versus VO ma2 Peak criteria:  HR fails to increase with increasing workload  Blood Hla  8 mmol/L  RER  1.15 (respiratory exchange ratio) shouldn’t be here  RPE  17 on Borg 6 to 20 scale Max criteria:  All of the above plus  50 ml/min change with increasing workload (plateau attained)  RER  1.15 (respiratory exchange ratio)  * Get plateau for VO2 and heart rate at max/ really intense work rates Athletes can sometime be able to endure more lactate, greater than 8mmol RER- ratio btwn oxygen consumption and carbon dioxide production – doesn’t always work ex. Funny results if someone is hyperventilating Absolute VO 2  discrete volume of O2 consumption  expressed in L/min or ml/min  Used for non-weight bearing modalities  Directly related to body weight * Use VO2 peaks in young children and older adults Relative VO 2 - a volume of O2 consumption relative to unit of body mass and time - expressed as ml/kg/min - used for weight-bearing modalities - best for comparing people of different body size - can express as ml/kg/min to look at O2 consumption of muscle mass * Per kilogram body weight in this person vs. this person.. Than you can compare Gross Versus Net VO 2 - Not synonymous terms - Gross VO2 = caloric cost of exercise and rest (Gross = exercise + rest) - Net VO2 = caloric cost of exercise only (et = Gross – rest) - Express in either absolute or relative terms - Rest is 3.5ml/kg/min or 1 MET * Net=taking out resting values VO peak Versus VO max 2 2 Peak criteria are similar to criteria VO2 max except RER is < 1.15 and no plateau is attained Children, older adults, sedentary people, and those with know disease are likely to attain VO2 peak, but not max Graded Exercise Test  Objective assessment of functional capacity  Can use maximal or submaximal tests  Can observe and compare numerous variables from baseline testing to follow-up testing  Instrumental for exercise programming and goal setting  CSM recommends maximal exercise testing prior to start of vigorous exercise program for older, moderate-risk, or high-risk individuals  Vigorous is >60% Vo2max, or > 6 METs * Seeing how body responds to increase in work load Procedures for Conducting GXTs  Pretest instructions  Paperwork  Resting baseline data (HR, BP, EKG)  Instructions and warm-up stage  Periodic (and continual) monitoring  Stage changes (depend on protocol)  Termination (criteria depend on protocol, client, S/S) * Talk them through the whole test Never leave the person performing the test alone Anginal threshold Rating of Perceived Exertion (RPE)  Original 6 to 20 scale was revised to 0-10 scale  Both highly related to HR and VO2  Subjective scales of overall exertion  Moderate intensity is 12-14 on original scale and 6 on revised scale  OMNI pictorial scales may also be used for children through adult age groups Maximal Exertion Protocols  Choose protocol and modality wisely!  Individualized protocol is best – ie. Cyclist test for cyclist  Highest VO2 is with uphill running; lowest is with arm ergometry  Usually lasts 8 to 12 mins  Can be continuous or discontinuous protocol  Discontinuous protocols take longer Submaximal Exertion Protocols  Choose protocol and modality wisely!  Similar to maximal exertion GXTs  May or may not involve stage change (s)  Monitor constantly for S/S and proper hemodynamic response  Generally terminated based on predetermined criteria (e.g: 85% age-predicted maximal HR)  Results can be used to estimate exercise tolerance & VO2max Treadmill Protocols - Manipulate workload via speed (mph) and grade (%) - ACSM’s TM walking and running equations estimate metabolic cost of exercise (energy expenditure)  Assume steady state stages (overestimates if not)  Cannot account for anaerobic component  Walking equation better if walking with incline  Use running equation for speeds >5 mph or slow jobs (3mph) - Many treadmill protocols exist - Choose best one for your client - Many have their own equation to calculator VO2 - Some use programs Calculating VO 2 70 kg woman walks at 3.5 mph at no grade VO 2 Horizontal + Vertical + Res
More Less

Related notes for EDKP 350

Log In

OR

Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view

OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.

Request Course
Submit