Chapter 11 Physical Fitness and Activity Assessment in Adults Adult Fitness Testing • • • • • • Reliability Validity Relevance Objectivity Normative Data Feasibility Table 11-1 Populations and Purposes of Physical Fitness Testing Population Youth Adults The aged Healthrelated Motor * * * * Diagnosis Military preparation Functional Capacity * * * * Special Mentally impaired * * * Physically impaired * * * Athletes The ill or injured * * * Table 11-2 Health-Related Fitness Factors and Benefits Factor Benefits Cardiovascular endurance Reduction in risk of cardiovascular disease Body composition Reduction in risk of cardiovascular disease, adult-onset diabetes, and cancer Muscular strength, muscular Reduction in risk of low-back pain endurance, and flexibility Improved posture and functional capacity Ability to conduct daily activities Cardiovascular death rate Figure 11.1 Relationship Between Cardiovascular Endurance and Cardiovascular Death Rate 2.5 2 1.5 1 0.5 0 Q4 Q3 Q2 Cardiovascular endurance quartile Q1 Table 11-3 Major Risk Factors for Cardiovascular Disease Family history Father or brother: CVD < 55 yr Mother or sister: CVD < 65 yr Cigarette smoking Current or recently quit Hypertension SBP > 140 or DBP > 90 Cholesterol Total C > 200 mg/dl or HDL < 35 mg/dl Impaired fasting glucose Fasting blood sugar > 110 mg/dl Obesity BMI > 30 or waist girth > 100 cm Sedentary lifestyle/physical inactivity Not meeting Surgeon General’s guidelines Table 11.3 Risk Classification Low Risk Men < 45 yr or women < 55 yr who are asymptomatic and meet no more than one risk factor threshold Moderate Risk Men > 45 and women > 55 or individuals who meet two or more of the risk factors High Risk Symptomatic or individuals with known cardiovascular, pulmonary, or metabolic disease Measuring Aerobic Capacity • Aerobic Capacity • Laboratory Maximal Tests Submaximal Estimations • Field Methods Distance Runs Step Tests Rockport 1-Mile Walk Test Predicting VO2max Without Exercise Figure 11.4 Linear Relationships Among Oxygen Consumption, Heart Rate, and Workload Measuring Body Composition • Body Composition • Laboratory Hydrostatic Weighing Using Body Density • Field Methods Skinfolds Body Mass Index Distribution of Body Fat Waist/Hip Girth Ratio > 1.00 for males > risk > 0.80 for females > risk Waist Girth > 102 cm (40 in) for males > risk > 88 cm (35 in) for females > risk What is your BMI? Use Table 11-16 on pages 242 - 243 Underweight < 18.5 Normal 18.5 – 24.9 Overweight 25.0 – 29.9 Obesity class I 30.0 – 34.9 Obesity class II 35.0 – 39.9 Extreme obesity 40.0 + Harpenden® Skinfold Caliper Lange Skinfold Caliper Calculation of Lean Weight and Fat Weight • 1) Determine total body weight (TBW) • 2) Determine percent fat • 3) Fat weight = TBW * percent fat • 4) Lean Weight (LW) = TBW - FW Calculation of Target Weight • Calculation of Target Weight 1) Determine your lean weight (TBW - FW) 2) Determine your target percent fat (TPF) 3) Target weight = LW / (1 - TPF/100) • This method assumes: 1) Your target percent fat is less than your current percent fat 2) Your goal is to lose fat weight Muscular Strength and Endurance • Specificity Determined with concurrent validity (i.e., PPM) • Power The time rate of doing work • Muscular endurance Repetitive performance • Relative endurance Relative to maximum performance • Absolute endurance At a fixed resistance Types of Contractions Measured Concentric Muscle generate force as it shortens Eccentric Muscle generates force as it lengthens Isometric Muscle generates force but remains static in length and causes no movement Isotonic Muscle generates enough force to move a constant load at a variable speed through full ROM Isokinetic Muscle generates force at a constant speed through full ROM Measuring Muscular Strength and Endurance • Muscular Strength and Endurance • Laboratory Computerized Dynamometers Back Extension Strength Test • Field methods Traditional Weight Lifting Tests Body Resistance (i.e., pull-ups, sit-ups, etc.) 1 Repetition Max 10 Repetition Max Trial-and-error estimation Cable Tensiometer Measuring Flexibility • Flexibility is very joint specific • Laboratory Goniometry Flexometer Visual estimation Radiography Photography Linear measurements Trigonometry • Field methods Trunk Flexion (Sit-and-reach) Trunk Extension Goniometer Flexometer Health Related Fitness Battery • YMCA Physical Fitness Test Battery Height Weight Resting heart rate Resting blood pressure Body composition Cardiovascular evaluation Flexibility Muscular strength and endurance Health Related Fitness Battery • Canadian Standardized Test of Fitness Resting heart rate Resting blood pressure Body composition (skinfolds) Cardiovascular endurance Flexibility (sit-and-reach) Abdominal endurance Upper-body strength and endurance Aging is related to . . . • decreased sensations of taste, smell, vision, and hearing, • decreased mental abilities, • decreased organ function, • decreased bone mineral content, and • decreased physical fitness. All of these factors lead to a decreased quality of life, health-related fitness, and functional fitness. Table 11-24 Fitness Parameters and Items of the Older Adult Fitness Test Physical fitness parameter Test item Lower-body strength 30 s chair stand Upper-body strength Arm curl Lower-body flexibility Chair sit-and-reach Upper body flexibility Back scratch Cardiovascular endurance 6 min walk or 2-min stepin-place test Motor fitness Composite measure of power, speed, agility, and balance 8 ft up-and-go Body composition Body mass index (BMI) Health Related Fitness Battery for Special Populations Anaerobic capacity and power Aerobic capacity Electrocardiographic response to exercise Muscular strength, endurance, and flexibility Body composition Measuring Physical Activity • Is important because physical activity is related to physical fitness • Physical activity is related to quality of life and functional capacity • Physical inactivity is related to development of a variety of diseases Figure 11.19 The relationship of health-related fitness to the physical activity pyramid Measuring Physical Activity • Direct measurement include: Observation Calorimetry Step counters Motion sensors • Field methods include: Self-report Diaries Caltrac® Accelerometer A five-level single-response assessment of physical activity Precontemplation I don’t exercise/walk regularly and I do not plan to start in the near future Contemplation I don’t exercise/walk regularly but I have been thinking of starting Preparation I am doing moderate physical activity fewer than 5 times a week, or vigorous ones fewer than 3 times per week Action I have been doing moderate physical activities 5 or more times a week, or vigorous ones at least 3 times a week, for the last 1 to 6 months Maintenance I have been doing moderate physical activities 5 or more times a week, or vigorous ones at least 3 times a week, for 7 months or longer A five-level single-response assessment of physical activity Precontemplation I don’t exercise/walk regularly and I do not plan to start in the near future Contemplation I don’t exercise/walk regularly but I have been thinking of starting Preparation I am doing moderate physical activity fewer than 5 times a week, or vigorous ones fewer than 3 times per week These 3 groups do NOT meet the Surgeon General’s guidelines for sufficient physical activity for a health benefit A five-level single-response assessment of physical activity Precontemplation I don’t exercise/walk regularly and I do not plan to start in the near future These 2 groups DO meet the Contemplation I don’t exercise/walk regularly but I have been thinking of starting Surgeon General’s guidelines for sufficient activity a health benefit Sub-Action physical I am doing moderatefor physical activity fewer than 5 times a week, or vigorous ones fewer than 3 times per week Action I have been doing moderate physical activities 5 or more times a week, or vigorous ones at least 3 times a week, for the last 1 to 6 months Maintenance I have been doing moderate physical activities 5 or more times a week, or vigorous ones at least 3 times a week, for 7 months or longer CRT Reliability How could you determine the criterion-referenced reliability of the 5-level single response item? 1) 2) 3) Administer the question on TWO occasions. Determine if the respondent meets or fails to meet the Surgeon General’s guidelines on each occasion. Develop a 2X2 table as illustrated in chapter 7. A five-level single-response assessment of physical activity Precontemplation I don’t exercise/walk regularly and I do not plan to start in the near future Contemplation I don’t exercise/walk regularly but I have been thinking of starting Preparation I am doing moderate physical activity fewer than 5 times a week, or vigorous ones fewer than 3 times per week Action I have been doing moderate physical activities 5 or more times a week, or vigorous ones at least 3 times a week, for the last 1 to 6 months Maintenance I have been doing moderate physical activities 5 or more times a week, or vigorous ones at least 3 times a week, for 7 months or longer Does NOT meet SG guidelines DOES meet SG guidelines CRT Reliability 5-level, single-response Physical Activity Item Administration 1 Administration 2 Not Met Not Met Met Met ACSM Fitness Certifications Health/Fitness Instructor Exercise Specialist Registered Clinical Exercise Physiologist A Practical Health-Related Fitness Battery • Cardiovascular endurance Rockport 1-Mile Walk Test • Body composition BMI and Waist/Hip girth ratio • Abdominal power YMCA 1-minute sit-up test • Upper body strength and endurance Canadian Standardized test of fitness pushup test • Hamstring flexibility YMCA sit-and-reach test