Resting Metabolic Rate And Progressive Submaximal Exercise Test

Introduction: In this experiment, cardiovascular fitness is being determined by measuring how long it takes for the test subjects' to return to their resting heart rate. Cardiovascular fitness is the ability to "transport and use oxygen while exercising" (Dale 2015). Cardiovascular fitness utilizes the "heart, lungs, muscles, and blood working together" while exercising (Dale 2015). It is also how well your body can last during moderate to high intensity cardio for long periods of time (Waehner 2016). The hypothesis is that people who exercise for three or more days will return to their resting heart rate much faster than people who only exercise for less than three days.

Brooks GA, Fahey TD, Baldwin KM (2005). Exercise Physiology: Human Bioenergetics and Its Application. 4th Edition

To calculate RER is an RER of 0.70 is mostly fat is the fuel source, RER of 0.85 is a mix of fat and carbohydrates, 1.00 or above is carbohydrate as the fuel source. During the warm up of the VO2 test, there was a slight elevation of RER the first 30 seconds, probably due to nervousness. I ran myself pretty hard during the test and my RER max was 1.20 during the exercise. On the cool down my RER rose to 1.25, but that is due to trying to replenish oxygen

P6- follows guidelines to interpret collected data for heart rate, breathing rate and temperature before and after a standard period of exercise

The results of my pulse rate, breathing rate and temperature before and after the exercise are down below.

The purpose of this lab is to gain knowledge and understanding of the scientific principle of RER, using indirect calorimetry to measure caloric expenditure, including the caloric equivalent and to understand the concepts behind estimating oxygen consumption and caloric expenditure from heart rate, including the limitations. In addition the purpose was to learn skills of how to measure and graph the linear relationship between heart rate and VO2 and then determine the regression equation line and to estimate the caloric expenditure from VO2, heart rate, and caloric equivalent values.

The difference between basal metabolic rate (BMR) and resting metabolic rate (RMR), is the hours that determine the metabolic velocity. The basal metabolic rate takes place in supine position. In a thermonetural atmosphere the basal metabolic rate can be assed 12-18 hours after a meal. The resting metabolic rate is assessed after 4 hours of a light meal, and 30-60 minutes after resting quietly.

RPE is a scale that is used to measure the intensity of the exercise from 1 to 10. Number 1 is being rest and number 10 is being maximal. As Subject A reaches the higher levels, the anaerobic energy system also known as the lactic acid system, now comes interplay which is when Subject a reached its maximum heart rate around 170 at level 4.1 and is being the dominant energy system after ATP-PC system is exhausted. This is so, as it provides energy by the breakdown of glycogen with no oxygen present at a higher rate than that of the aerobic system. In general, the anaerobic systems lasts for 2 to 3minutes at a maximal

The Basal Metabolic Rate is essentially a measure of the required amount of energy needed to maintain bodily function while at rest. The most significant requirements that BMR energy needs meet are in processes such as establishing and maintaining a normal breathing pattern, heartbeat, blood circulation and temperature. The primary factors influencing BMR include age, gender, muscle composition, hormonal levels, exercise levels and many more. It is important to recognize that an individual’s BMR is not static and many of the above factors can affect the utilization of energy either positively or negatively. For example, men on average have higher BMRs when compared to women simply due to an increased amount of muscle mass. While it may seem

The results of this test show that it provides a valid test to estimate aerobic capacity and shows there is a small measurement of error. A polar heart rate monitor was used to measure the heart rate with a step of 30cm in height with a metronome with a beat at 15 steps, per minute and increased by 5 steps every minute for 5 stages or until 80% of the maximum estimated heart rate was reached. The results demonstrated that the Chester Step technique is a valid predictor of aerobic capacity in males and females from a wide range of ages and fitness levels.

Respiration rate: Respiration rates for both males and females escalated from sitting to exercising but dropped back after a certain amount of time (Figure 1). Males had greater respiration

As the intensity of exercise increased, so did the rates of the heart and breathing. After a small period of rest, the heart rate and breathing rate both decreased to a point close to their resting rate. This proved the stated hypothesis. First, the hearts average resting rate was recorded to be 76 bpm. The heart is therefore transporting oxygen and removing carbon dioxide at a reasonably steady rate via the blood. During the low intensity exercise (Slow 20) the heart rate increases to 107 bpm, which further increases to 130bpm at a higher intensity level (Fast 20). The heart therefore needs to beat faster to increase the speed at which oxygen is carried to the cells and the rate at which carbon dioxide is taken away by the blood.

Measurement of aerobic/anaerobic capacity allows evaluation of individual’s metabolic abilities, indicates state of fitness and effectiveness of training programs.

Steady state exercise is the activity that achieves a balance between the energy required by working muscles and the rate of oxygen and delivery for aerobic ATP production. This lab is conducted to determine the heart rate in beats per minute (BPM), blood pressure (systolic and diastolic), and rating of perceived exertion response at rest to moderate cardiovascular exercise at a steady state workload and RPM. I hypothesized that exercising on an exercise bike the subjects participating in this study would have a higher rate of fatigue without fluid replacement than with fluid replacement.

Carry out an experiment to measure the heart rate and ventilation rate before, during and after moderate exercise.