Rest Metabolic Rate Lab Report

The concept of energy intake and expenditure refers to the amount of calories per day that an individual consumes, and is the chemical energy in foods which can be metabolized to produce energy available to the body. As stated before energy is obtained from the foods we eat and is used to support an individual’s Basal Metabolic Rate, energy is measured in calories or joules as both units are very small they are multiplied by 1,000 and referred to as kilocalories. Different foods provide us with different amounts of energy, and the potential fuel sources available to exercising muscles are fats – 1 gram fat =9.0kcal = 23kJ,

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.

Breathing Rate 2.6 2.9 3 2.8 TV(L) 2.9 3 2.9 2.9 Resting Values ERV(L) IRV(L) 3.9 4.3 4.3 4.2 5.5 5.9 5.9 5.8 RV(L) 3.4 3.6 3.7 3.6 Breathing Rate 2.2 2.3 2.3 2.3 TV(L) 4 4.3 4.4 4.2 Exercising Values ERV(L) IRV(L) 5.6 5.9 6 5.8 6.2 5.3 6.7 6.1 RV(L) 42.2 50.2 49.5 47.3

This experiment was carried out as noted about in Procedure 1. The resting heart rate was established and used as a baseline value from which to compare all future deviations. While data could

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 answer to your question is based on what is called metabolism. Metabolism is the amount of calories burned in a typical day and can vary from individual to individual. Many factors can affect why it can change in each person including what they eat, how much they exercise, genetics and even your age.

Introduction: Exercise is a physical activity or particular movement that is used in order to become healthier and stronger. (1) Exercise, in all of its forms, has various effects on the different systems in the human body. One of the main benefits is cardiovascular health, including circulation and heart health. Exercise uses a lot of energy, which the cells derive from oxidising glucose. Meaning that the heart has to work harder to pump more blood throughout the body and the heart has to beat faster in order to achieve a high effort. (2) The heart benefits from exercise include being able to pump more blood through the body and continue working at a higher level with less strain. (3)

In addition, heart rates vary according to exercise, physical needs, age, gender, air temperature, etc. In this experiment the dependent variable

Men have a faster metabolic rate - usually 10-15 percent faster - than women because their bodies have a larger muscle mass. Muscle plays a key role in fast metabolism, as will be discussed in the chapter

These numbers decreased on an average of 5.57 mmHg every three months. Age and number of steps was related to the initial starting value, and somewhat for the changes seen over time, while gender was only related to the initial starting value. While being different, the two research sites saw similar changes in systolic and diastolic BPs. At KI, systolic and diastolic BP was seen to initially be high, the fall about halfway through the study, and then slightly increase toward the end, while at ASU, systolic and diastolic BP were seen to be lower than KI’s initial measurement, increasing about halfway through and then tapering off toward the end. Diastolic BP followed suit of systolic and decreased over time by a rate of 4.03 mmHg every three months. However, for diastolic BP, gender had no correlation to initial or continuous changes diastolic BP, age was only related to the initial diastolic BP, and the number of steps taken was only related to the changes over time. For VO2max, ASU’s estimated VO2max was lower than KI’s, and, over time, ASU participants’ VO2max decreased while it stayed basically the same at KI. It was also found that the number of steps taken, and age were positively related to changes in VO2max over time, while gender showed no

Why did the metabolic rates differ between the normal rat and the surgically altered rats? How well did the results compare with your prediction? ___

BMR = 655 + (4.35 x 159) + (4.7 x 67) – (4.7 x 31) = 1515.85 kcal/day

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.

I predict that during exercise the heart and respiratory rate (RR) will increase depending on the intensity of exercise and the resting rates will be restored soon after exercise has stopped. I believe that the changes are caused by the increased need for oxygen and energy in muscles as they have to contract faster during exercise. When the exercise is finished the heart and ventilation rates will gradually decrease back to the resting rates as the muscles’ need for oxygen and energy will be smaller than during exercise.

The heart rate is a measurement of how many times the heart beats in a minute. Physically fit people tend to have a lower heart rate and during intense exercise tend to have lower rates as well. A decrease of heart rate at both rest and at fixed intensity of sub-maximal exercise [7] occurs a few months after an exercise program is begun. One’s heart rate reflects the amount of work the heart must do to meet an increase of demands of the body when engaged in activity. Heart Rate tends to increase proportionally with intensity oxygen uptake [16].