Diagnostic Testing

Diagnostic Testing

Your customized healthy weight loss program at Revolution Physical Therapy Weight Loss will be based upon a foundation of comprehensive Diagnostic Testing.

This testing will reveal eight specific “biomarkers.” These eight measures of your health and fitness will be tracked over time to optimize and customize your exercise and nutrition program, chart your progress, and provide feedback to your physician.

These Diagnostic Tests will include:

  • Cardiopulmonary Exercise Testing

  • Resting Metabolic Rate Analysis

  • Body Fat Analysis

  • Body Mass Index

  • Blood Pressure

  • Fasting Blood Glucose

  • Waist Circumference

  • Waist-to-Hip Ratio

  • Muscular Endurance

 

CARDIOPULMONARY EXERCISE TESTING

What Is It?

  • A 15-minute exercise test performed on a treadmill or stationary bike
  • Determines each individual's unique physiological response to exercise
  • Determines heart rate zones that are associated with the most efficient fat burning and analyzes how your body uses stored fat as fuel - substrate utilization
  • Provides information to produce safe and effective exercise programming
  • Predictor of overall health and risk factors
Woman On Treadmill

How Is The Test Performed?

  • You should be well rested and should not perform any other exercise on the day of the test
  • You will be fitted with a sterile face mask connected to a metabolic cart that measures respiratory gas exchange
  • Walking begins on a treadmill at a low level and progresses to higher levels in one to two-minute intervals
  • When sufficient sub-maximal levels are reached, the test is concluded followed by a cool-down
  • Blood pressure, heart rate, and exertion levels will be monitored throughout the test

What Does The Test Tell Us?

  • Heart rate zones are created for exercise prescription based on ventilatory measures — or the oxygen that you breathe in versus the carbon dioxide that you breathe out — which enables us to create programs that allow you to expend large amounts of energy converted from stored body fat
  • As you continue to exercise in these zones, you will gain the ability to burn stored body fat at higher intensities, meaning your body becomes more efficient
  • Heart rate ranges are prescribed for exercise on days you are not with a trainer, designed specifically to burn fat for extended periods of time

Health Facts: 

  • Exercising in recommended heart rate zones improves cardiovascular fitness by 5-30%, allowing you to exercise at longer and higher intensities, which in turn will burn more calories
  • Improved aerobic fitness decreases your risk of cardiovascular disease, improves your heart-health and general fitness, and decreases your risk of disease and death

RESTING METABOLIC RATE

What Is It?

  • A 15-minute test, performed in the morning prior to eating
  • Measures how much energy is expended during a resting state — often referred to as a person’s metabolism or Basal Metabolic Rate
  • Generally decreases with age, due to a decrease in muscle and hormonal changes
  • Your Resting Metabolic Rate can consist of up to 80% of your caloric needs, making it a critical component in developing nutrition programs
  • Each individual has a unique metabolism, like a fingerprint, therefore results from the test allow the dietitian to create nutrition programs that are just as unique to the individual

How Is The Test Performed?

  • You will be instructed to fast overnight and come to the testing facility on an empty stomach
  • You will be fitted with a sterile face mask connected to a metabolic cart that measures respiratory gas exchange
  • You will be instructed to sit in a relaxed position, staying as motionless as possible without falling asleep

What Does The Test Tell Us?

  • Your Resting Metabolic Rate tells us the amount of energy needed to supply your vital organs, bones, tissue, etc.
  • The test gives your dietitian specific information about your body’s metabolism, allowing for creation of a customized nutrition plan

Health Facts:

  • An increased Resting Metabolic Rate leads to increased energy expended at rest, which helps improve your overall energy balance

BODY FAT PERCENTAGE

What Is It?

  • A five minute test that measures how much adipose tissue, or stored fat, is in the body
  • For men, Essential Fat (necessary for survival) makes up about 3-5% of total body weight. For women, Essential Fat makes up about 10-12% of total body weight. The rest is all Storage Fat
  • Your body fat percentage is reduced by consuming less calories than are expended

Body Fat Percentage TestHow Is The Test Performed?

  • Body fat percentage is determined using an ultrasound device which measures fat layer thicknesses
  • An ultrasound wand is used to take body fat measurements from 3-sites on men (chest, abdomen, and thigh), and 3-sites on women (triceps, abdomen and hip)
  • The wand slides over each site for three seconds per reading, three readings will be taken from each site
  • Ultrasound is one of the most accurate tools for analyzing body fat

What Does The Test Tell Us?

  • Your Body Fat Percentage is used to determine overall health and risk factors

Health Facts:

  • To lose one pound of body fat in a week, a person would have to expend 500 more calories each day than they consume
  • Average Body Fat Percentages for 30 to 50 year old men are between 19%-24%. For 30 to 50 year old women, average Body Fat Percentages are between 23%-30%
  • Improvements in your Body Fat Percentage can lead to lowered blood pressure, and reduced risk of type-2 diabetes, stroke, cardiovascular disease and high cholesterol

 

BODY MASS INDEX

What Is It?

  • A common measure using height and weight to predict the risk of disease and death
  • A normal Body Mass Index is between 18.5-24.9. Below 18.5 is underweight, and between 25 to 29.9 is overweight. A Body Mass Index over 30 is obese
  • A 30% increase in the risk of death is associated with each five unit increase of Body Mass Index over 25

How Is The Test Performed?

  • Your height (in centimeters) is divided by your weight (in kilograms).

What Does The Test Tell Us?

  • Since height is unchanged in adults, a reduction in weight relates to a reduced Body Mass Index
  • A decrease in Body Mass Index correlates to a lower risk of high blood pressure, cardiovascular disease, death, high cholesterol, and type-2 diabetes

 

BLOOD PRESSURE

What Is It?

  • The amount of resistance the heart experiences in order to circulate blood to the body
  • Blood Pressure is referred to as the “silent killer,” often going undetected unless tested
  • A Blood Pressure reading consists of two numbers — the first number correlates to the pressure of the heart while it contracts (systolic) and the second number measures the heart while at rest (diastolic)
  • A normal blood pressure is below 120/80 mm/Hg
  • Levels above 120/80 mm/Hg increase the risk of cardiovascular disease
  • High blood pressure can lead to damage to the artery walls, blood clotting, kidney failure, peripheral vascular disease and heart attacks

How Is The Test Performed?

  • You will be asked to sit in a resting position
  • A cuff is placed around your arm and inflated to a pressure that is higher than your blood pressure
  • The pressure in the cuff is then slowly released and the technician listens for the sounds associated with the contraction and relaxation phases of your heart

What Does The Test Tell Us?

  • Because weight loss through exercise and nutrition is the most effective way to reduce blood pressure, your reading is a good indicator of success and better health

Health Facts

  • Each year high blood pressure leads to over 1,000,000 heart attacks and 700,00 strokes
  • Cardiovascular and resistance training programs reduce blood pressure by 4-9 points on average over 6 months
  • Exercise dilates or relaxes the blood vessels, which puts less stress on the artery walls for up to 12 hours after exercise
  • Lowered blood pressure will reduce your risk of stroke, heart attack, peripheral vascular disease, kidney failure and many other devastating diseases

 

FASTING BLOOD GLUCOSE

What Is It?

  • A measure of how much glucose (blood sugar), is in the blood stream without food in your system
  • A high blood glucose indicates that the body is not properly metabolizing carbohydrates, which can lead to type-2 diabetes
  • Too much glucose in the blood stream over a short period of time can lead to dehydration, excess urination, thirst, blurry vision and many other side effects
  • Too much glucose in the blood stream over a longer period of time can lead to kidney disease, blindness, and cardiovascular disease
  • Fasting blood glucose levels confirmed on two occasions that are between 100-125 mg/dL are indicative of pre-diabetes
  • Fasting blood glucose levels above 126 confirmed on two occasions are indicative of diabetes

How Is The Test Performed?

  • You are asked not to eat or drink anything but water in the morning before testing
  • You are seated comfortably and a lancet is applied to the finger in order to gather a very small drop of blood, which is placed on a testing strip
  • Within 15 seconds, a reading of your fasting blood glucose is given

What Does The Test Tell Us?

  • Your blood glucose readings can be a good indication of program success
  • As your exercise program increases your body’s ability to metabolize carbohydrates, your fasting blood glucose will improve  
  • As you increase lean muscle through resistance training, you will add more sites to utilize carbohydrates, thus further lowering fasting blood glucose
  • Lower blood glucose levels reduce the risk of diabetes and pre-diabetes and the associated complications which include: kidney failure, blindness, and cardiovascular disease

 

WAIST CIRCUMFERENCE and WAIST-to-HIP RATIO

What Are They?

  • Waist circumference is the circumference of a person’s waist, taken at the hip-bone — cardiovascular disease is associated with a waist circumference greater than 88 cm for women and 102 cm for men
  • Waist-to-hip ratio is the difference in circumference between a person’s waist and hips — those with larger circumferences around the waist have a higher risk of cardiovascular disease than those who have larger circumferences around the hips
  • Waist-to-Hip Ratio’s above .86 for women and .95 for men are associated with a higher risk of cardiovascular disease

How Are The Tests Performed?

  • Waist circumference is measured by placing a tape measure around the waist at the top of the hip-bone
  • Waist-to-hip ratio is measured by a tape measure at the widest point of the hips and repeated for accuracy.
  • The waist circumference is divided by the hip circumference to generate a waist-to-hip ratio

What Do The Tests Tell Us?

  • By engaging in cardiovascular exercise programs, abdominal circumferences will decrease even in the absence of weight loss
  • Weight loss from improved nutrition, cardiovascular, and resistance exercise programs will also reduce abdominal circumference, leading to a reduced waist-to-hip ratio.
  • Reduced waist circumferences lead to a decreased risk of type-2 diabetes, cardiovascular disease, and stroke

MUSCULAR ENDURANCE TESTING

What Is It?

  • The ability of a muscle group to contract over a period of time without undue fatigue
  • Muscular Endurance Testing helps to measure improvements in strength over time
  • Poor muscular endurance is related to a decreased bone mass and higher risk of osteoporosis
  • Men between the age of 30 – 50 should have a push-up range between 12 – 21. Women of the same age should have a push-up range between 11-19      

How Is The Test Performed?

  • Upper body endurance is performed with a push-up test
  • Males are instructed to position themselves on their hands and feet and perform push-ups until they fatigue
  • Females are instructed to perform the same procedure using a modified position on their knees instead of toes
  • Lower body endurance is performed with a squat test
  • Males and females perform squats onto a sturdy bench until they fatigue  

What Does The Test Tell Us?

  • Our resistance training programs are focused on improving both muscular strength and endurance, good indicators of program success
  • After the program, clients are able to lift the same amount of weight for more repetitions and with less stress to the body
  • Clients will have an improved ability to perform daily activities without fatigue, reduce their risk of injury, reduce their risk of osteoporosis, improve metabolism, and increase their bone mass.

Professional Team—A Masters level Exercise Physiologist will perform all of the Diagnostic Testing.

See Preparing for Your Visit for helpful location information.

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