Introduction: In this lab, we estimated the VO2 max for one subject on both the arm bike and treadmill. Estimating VO2 max is relevant because it allows the subject to compare their results with normal limits for their age and gender and see where they fall. It can also be used to make an exercise prescription in order to improve or keep a closer eye on your bodies own personal limits. Lastly, estimated VO2 max can be used as a diagnostic test to acquire information about a person’s health.
Method:
The experiment was performed on one subject, a 20-year-old female gymnast that weighed approximately 58.6kg. First, she performed the test with the arm bike, which had 3 stages of 25Watts, 50W, and 75W all lasting 3min each. Before the end of
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We see that the estimated VO2 max for the treadmill is slightly higher than that of the arm bike. This happens because walking is something she does more regularly, and estimated VO2 max scores are higher2 in tests with modes of exercise the subject is more use to.
Discussion:
In a similar study, researchers determined VO2 max using four different methods of treadmill running, cycle ergometer, step test and prediction2. The results found that the treadmill had the highest VO2 max followed by the ergometer, and the step test and prediction were the lowest2. This supports the findings of our experiment, showing that VO2 max will be higher2 depending the tests mode of exercise and how trained the subject is in that exercise.
Conclusion:
Our subject found the she falls in an above average1 category for both of her VO2 max values. She knows that she is healthy and in good shape and can plan her workouts keeping her limits in
Submaximal and maximal exercise testing are two analytic methods that can be used to examine the cardiovascular, and cardiorespiratory fitness/health levels of the individual being examined. Submaximal testing is usually preferred over maximal mainly because the submaximal exam is more practical in a fitness/health environment. Both test require the individual being examined to perform controlled exercise on a(n) treadmill/ergometer until either steady state has consecutively been reached (submax), or the individual reaches their max (close to it). Being that both test are set to exceed time limits of more than 3 minutes we examine the use of the ATP-PC, Glycolytic, and Oxidative energy systems. Although a huge portion of the test involves the use of the oxidative energy system, we must remember that the three systems are co-occurrent.
•Controlled variable- amount of time exercising and resting, number of trials, type of exercise, same type of clothespin , intensity of the exercise, and the age of test subjects
This lab experiment was conducted in a Texas Woman’s University exercise physiology lab room, on September 20, 2013. It consisted of two main participants: A trained participant (Male; 30 years old; 72 in. tall; 82.9 kg) and an untrained participant (Female; 20 years old; 65 in. tall; 75 kg). They were selected by my Prof. April Hartman to participate because they were best qualified to conduct the study in our class. Both participants were assigned to carry out the same experimental task. The Bruce Protocol (graded test) on a treadmill (mode of exercise) was used to conduct the VO2max test. The materials needed were: 1 metabolic cart (with computers); 2 mouthpieces; 1 nose clip; 1 treadmill; 1 RPE scale; 1 timer; pen; paper; and a HR monitor.
VA Cornelissen, B Verheyden, AE Aubert and RH Fagard. Effects of aerobic training intensity on resting, exercise and post-exercise blood pressure, heart rate and heart-rate variability. Journal of Human Hypertension (2010) 24, 175–182. Ebsohost. Available from: http://web.b.ebscohost.com.proxy.elmhurst.edu/ehost/pdfviewer/pdfviewer?sid=1e07b620-5e31-4733-ac67-63170534f7b3%40sessionmgr115&vid=2&hid=126
responses during prolonged treadmill walking with heavy load carriage. Medicine and Science in Sports and Exercise. 26:285-288.
- I did not feel this is accurate assessment of my aerobic fitness because my running speed is not the same since I started that test till I finished. So the test neglect the speed of performance and this could affect the VO2max as well as where the test was performed I think the fresh air could affect the test performance too.
Not only does interval training increase the amount of oxygen the body can consume during exercise, but its efficiency in delivering the oxygen to the key muscles. This is attributed by researchers to increase in stroke volume. Stroke volume is the volume of blood pumped from one ventricle of the heart in a single beat. The body can only continue performing exercise when the performing muscles receive oxygenated blood. Therefore, it is crucial that the oxygenated blood supply continue to be open throughout exercise. Stroke volume can increase through a higher left ventricular contractile force and/or through an increase in cardiac filling pressure, which raises end-diastolic volume and resultant stroke volume (Laursen, 2002). In addition to increased stroke volume, researchers have identified increased activity b...
During the first one or two minutes of exercise, before the heart has pumped enough oxygenated blood to the working muscles, the muscles are powered by anaerobic energy. In order for these muscles to continue exercise, the body must supply them with continuous supply of oxygen, the more efficiently this is done, the better the cardiovascular fitness level. During cardiovascular conditioning, a program such as interva...
This force transfers into the arteries and arterioles in other parts of the body as the blood moves away from the heart. Once the intensity drops and the stress on the heart decreases, the pressure in the arteries also reduces due to the less forceful contractions. Therefore, the hypotheses were accepted based on the averages of the data collected during the experiment. However, in order to have more accurate data, a larger sample size would be needed. In addition, using machines to measure heart rate and blood pressure could make the data more accurate than the process that was used in this experiment. Increased accuracy could also have been seen if there were more trials done when taking heart rate and blood pressure during the exercise stages and then averaging those
...executed was on the AstroTurf outside the school. This could have affected the subject’s performance and how the results were measured. To improve this, the experiment should have been carried out in a science lab on a treadmill so that the environment is constant and so that the heart rates are easier to measure. Thirdly, the temperature of when the experiment took place was about 10°C which may have affected the subject’s performance. If this experiment were recurrent then 5 subjects would do it inside (room temp. 21°C) using the treadmills and wearing the right clothing, and another 5 would do it outside to see if this factor did in fact affect the results and cause them not to be as accurate as it could be. Then we would be able to compare the two temperatures. Overall this experiment ran smoothly with some problems, which can be improved as I explained above.
.... This study was important in learning the affects of exercise on HR, BP, and pulse oximetry, and would have been more accurate and useful if the evaluators had access to a wider range of equipment/facilities.
Siconolfi, Dr. S., Dr. S. Fortney, Dr. V. Mikhaylov, and Dr. A. Kotov. "Aerobic Capacity Using Graded Bicycle Ergometry." NASA Shuttle-Mir Web: NASA/Mir Experiment. Online. Netscape. 8 Oct. 1997.
Ever since the first treadmill was invented for agriculture uses over 4000 years ago, much improvement have been made to them and today, treadmills are no longer commonly used for agriculture but for health and medical purposes such as keeping fit, being a training machine for athletes, rehabilitation as well as carrying out stress tests to diagnose heart diseases. A treadmill is an exercise device consisting of a continuous moving belt on which a person can walk or jog while remaining in one place (“treadmill”, n.d). The aspects explored are the advantages, disadvantages, purpose, uses for health and medical and improvements to treadmills as well as the development of treadmill from the past to present. Common features of treadmills in the present will also be listed, along with the advantages of such features. It will also touch upon the main group of people who use treadmills. This research will tell us how the development of treadmill has benefitted health and medical care.
Participants who volunteered for this study (6 males and 5 females) were between 18 and 65 years of age. All were well versed in the use of a stationary bike, defined by having exercised on a stationary bike at least 10 times in the six months prior to the study. The participants ...
I would integrate Sport Science with Computer Science/Business by making a software application that is able to tell the user their approximate vo2max using the sub maximal tests. The application will ask you to select one of the submaximal tests and then would time you. Afterwards, it will be able to calculate your approximate vo2max using the data and equations for that test.