Vo2 Levels Of Energy Essay

“The BSL Respiratory Effort Xdcr SS5LB was attached to the Biopac Systems MP36 and then was attached to the participant’s chest, underarms, and above the nipple line” [4]. Respiratory monitoring was done throughout the experiment. The subject was seated upon a Gold’s Gym 390R Cycle Trainer stationary bike. The Nonin Pulse Oximeter was used to monitor oxygen saturation levels in subjects’ blood and to measure changes

VO2 max is the maximum oxygen intake during a high intensity exercise. The test is typically done on a treadmill, or cycle ergometer. The VO2 max test reflects the aerobic fitness of the test subject and the endurance the subject has during prolonged exercise. The subject who are fit usually have a greater VO2 max, and can exercise for longer periods of time than other who are not physically fit. Pro athletes usually have a higher VO2 max because they train hard in order to be physically fit.

In these experiments we talked about the Resting Metabolic Rate and Progressive Submaximal Exercise Testing to determine a subjects’ carbon dioxide production to oxygen consumption. This was done by having examples provided for us to calculate the RMR by using a formula, (X ml/kg/min x weight in kg) / 1000 mL= # L/min, to determine the number of calories burned at rest, as well having subjects perform the standardized treadmill test for 12-15 minutes for the Progressive Submaximal Exercise Testing.

VO2max is the maximum rate of oxygen you can take in and use during exercise and is the typical parameter we look at when focusing on endurance exercise and aerobic respiration. Endurance exercise relies on the ability of the heart and lungs to work continuously for a relatively long period of time and VO2max, under aerobic respiration, (Cooper, D.M., Weiler-Ravell,

and aerobic endurance. It is measured in ‘milliliters of oxygen used in one minute per kilogram of body weight. Nevertheless, it is important to understand your individual VO2max as it is considered to be the best indicator of aerobic endurance and cardiovascular fitness. The actual measurement is done in ‘milliliters of oxygen used in one minute per kilogram of body weight. By knowing your VO2max, it enables an individual to set realistic goals and assess their improvement over time. Many people who exercise, or want to begin exercising do not understand what specific duration, intensity, or heart rate, would be the most beneficial in achieving the goals set. Thus, by having a clear understanding of VO2max an individual can clarify the specific target heart rates, fat

During this lab, various lung volumes and capacities for one subject were calculated for different conditions. These conditions included at rest and during 3 bouts of exercise varying in resistance on a cycle ergometer. Two subjects were supposed to participate in this specific lab, but there were technical difficulties with the computer set up, which only allowed for one individual to complete the entire procedure. The experiment began by having the subject sit down and breathe normally for 3 minutes into the transducer. Then, the participant performed 5 complete breathing cycles and at the end of the last cycle the individual was directed to inhale as deeply as possible followed by an exaggerated exhale. From there, the volumes were measured, including tidal volume (TV), inspiratory reserve volume (IRV), expiration reserve volume (ERV) and residual volume (RV). Next, the 3 exercise bouts at 60 repetitions per minute (RPM) occurred. The first exercise bout was at 0 kg followed by another at 2% and one at 5% the subject’s body weight, respectively. Similar to the resting condition, the different volumes were calculated for the 3 exercise bouts. After gathering all of the different values for the volumes, the capacities were calculated by using various equations.

Using the data from Table 1, calculations were performed to determine how much CO2 was expelled. This data is listed in Table 2. According to the data in Table 2, it is confirmed that more CO2 was expelled after exercising. While exercising, more oxygen is needed in the body for energy. Since more oxygen is inhaled, it makes sense that more CO2 is exhaled.

VO2max can be defined as the maximum oxygen uptake. This entails the maximum rate at which oxygen is readily available in the body to be taken up and used during aerobic exercise. (Fletcher et al.) It is a very important and commonly used indicator of a person or athletes level of cardiovascular fitness. A high VO2max demonstrates a high level of aerobic fitness, where as a low VO2max indicates a low rate of aerobic fitness. There are two factors that are important in determining a persons VO2max, which are the hearts ability to deliver oxygen to the muscles and the muscles ability to extract the oxygen from the blood and use it (Brown, Miller and Eason). This means that when a person has a high VO2max their body is able to deliver oxygen through the blood efficiently to the muscles in order to maintain high levels of aerobic exercise over an extended period of time. VO2max is a valued measurement of cardiovascular fitness in the Sport industry due to its ability to indicate cardiovascular fitness, as well as the pulmonary and muscular systems efficiency throughout the duration of the exercise (Brown, Miller and Eason). There are multiple tests that can measure VO2max

The purpose of these experiment is to understand the coordination of cardiovascular and respiratory systems in controlling O2 and CO2 and acidity of the blood. As the heart rate is affected by the resting respiratory, the first hypothesis is when the heart is in the opposite side of its target cells, heart rate and blood pressure will increase. According the higher muscle oxygen need when exercise than normal, the second hypothesis is heart rate will increase when exercise and after that will subsequently return to baseline levels. The last hypothesis is that there is an obvious decline in heart rate during inhalation compared to exhalation.

Maximum oxygen uptake V˙O2 peak is classified as the highest rate at which oxygen can be taken up and utilized by the body during severe exercise. It was one of the main variables in exercise physiology and regularly is used to specify the cardiorespiratory fitness of an individual.1 However, there are several physiological functions such as; cardiovascular, respiratory and metabolism [tissue] that all impact how oxygen intake and consumption is used within the body. It was proven that patients who had chronic obstructive lung disease, had a limited exercise capacity. Whilst normal, young subjects had a larger ventilatory reserve, due to maximal exercise capacity in this population had a disadvantage of a

At rest our body’s energy expenditure results from our basal metabolic rate (sleeping metabolic rate) and our arousal (wakefulness). At the onset of exercise, VO2 cannot initially support or new metabolic demands at sub-maximal level, so an oxygen deficit is created and must be compensated by our anaerobic metabolic systems. As exercise continues, for about 3-5 minutes, our aerobic system syncs in and supplements VO2, and a steady state is achieved. Heart rate increases as exercise increases in order to support an increase in VO2 and the metabolic demands required to pump more blood; this represents and linear relationship. Heart rate and VO2 are also linearly related, as the maintenance of a steady state during exercise is largely dependent on the heart’s ability to stimulate the metabolic activities that result in increased ventilation and a subsequent increase in VO2.

Participant were instructed to complete three-five minute bouts of exercise on the cycle ergometer (Monark Ergomedic 828 E) at a cadence of 60 rpm. The first stage was performed at a resistance of 1kp, the second at 2kp and the third at 3kp. At the three minutes and thirty seconds into each stage the subject was connect to the mouthpiece apparatus and removed at the end of each stage. During the final minute of each stage one respiratory cycle was recorded using LabChart as many times as possible to ensure a better data sample to choose from. The best respiratory cycle recording was labelled and used to obtain PEF and PIF. All pertinent data was then transferred into Microsoft Excel to enable data

The results obtained for this experiment were somewhat expected as the results had reflected to the theory. While the composition of oxygen in air remains constant only the atmospheric pressure to decrease with altitude. The respiration pattern should have shown a more frequent incidence of trough and crest, but the amplitude decreased with the increasing elevation, as the oxygen molecules contained in each breathe are low. Since less oxygen are presented the oxygen and carbon dioxide should decrease with increasing altitude. Equally since more breathe are taken to allow the body to be oxygenated, the heart would need to work faster and to allow such occurrence. These ideas correlates to the results obtained, as with increasing elevation the heart rate increased from 88 beat/min to 104 beat/min at rest and the 19.8% to 18.0%, 147711.6ppm to 130739.6ppm, oxygen and carbon dioxide respectively, when condition had remained the same (pre exercise). As one exercised, regardless of the altitude, component such as heart rate carbon dioxide should have increased and that oxygen and breathing pattern to decrease. This is because the heart will need to pump more blood and use more oxygen thus increasing the production of carbon dioxide. Additionally the body would act to the oxygen deficiency, hence resulting in a decrease in breathing pressure. These ideas can be correlate to the results as on table, as an exercise was performed the heart rate had increased to 109 beats/min, the

The program recorded liters of air over 120 seconds per trial. Once the program was running, the students clipped their nose to maximize the reading by minimizing nasal inhalation and exhalation. With their arms braced against a flat surface, a trial run was completed and the sensor was zeroed once the student was set. Without moving the sensor, the student completed four complete regular breathing cycles. A maximum inspiration and expiration were recorded to measure the vital capacity of the students’ lungs. The maximized breath was followed by a few cycles of recovery breaths. Data displayed by Logger Pro was analyzed to determine total lung volume and individual scores were added to the Life Science Core database.

Maximal oxygen consumption or VO2 max refers to the single maximum oxygen consumption that an individual can utilize during graded-intensity exercise. VO2 max can be assessed through properly administered submaximal oxygen consumption test which can include exercise test modes of treadmill, cycle ergometer or step test. In an individual, VO2 max can be determined by the cardiovascular system 's ability to deliver oxygenated blood to working muscles and then the muscle 's ability to extract that oxygen from the blood and generate energy for work. Influencing factors can include genetics, decline of VO2 max with aging, and finally aerobic training can positively influence an individual 's VO2 max and overall aerobic fitness. Individuals with high VO2 maxes often have greater overall aerobic fitness, which includes high efficiency, or running economy, better glycogen storage and is often an indicator of success when completing aerobic tasks of over 20 minutes. On the contrary, a low VO2 max can predict poor overall aerobic fitness which can include cardiovascular disease and problems with transporting oxygen to working muscles. (3) In these laboratory exercise test, submaximal intensity exercises were used to determine an individual 's predicted VO2 max which allowed the assessment of their overall aerobic fitness and the ability to compare the correlations between tests.