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Exercise Physiology Quiz
Exercise Physiology Quiz
Exercise Physiology Quiz
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Over a three week period a test subject was instructed to come to the exercise physiology lab once a week. The purpose of the first week was to determine the baseline test data for the participant. During this first week, the subject was asked how many hours of sleep they had gotten the night before and how much they weighed. The subject was then instructed to put on a heart monitor and wear an O2 apparatus and begin running on a treadmill. This treadmill was set at zero incline for the beginning of the run until three minutes had passed. At the three minute mark the incline increased by 2.5%. After this the incline was continuously increased by 2.5% every two minutes. During this process, the VO2 and RER exchange rate of the subject was being tracked through the O2 apparatus. Their heart rate was recorded every 15 seconds. In addition, the subject was asked their perceived exertion at every increase in incline. The subject continued to run until they could not run anymore, at this time they would hop off the treadmill. …show more content…
The subject was then asked to perform the same steps as last week in addition to getting their blood lactate taken before activity begins and again at every increase in incline. These processes were performed the following week as well, but the test subject was given a concoction that contained 250 mg of caffeine. This study was a double blind study in which the instructors, nor the subjects knew when the test subject was given caffeine. By having a double blind study all biases for how the data should turn out were eliminated. In addition, the professors, the test subject, and the research group were unable to skew the data because they were unaware of when the subject got the
The protocol and conceptual overview of these procedures can be found under the header, “Properties of Skeletal Muscle” in NPB 101L Physiology Lab Manual Second Edition (Bautista & Korber, 2009, 9-17). The test subject for this lab was the Northern Leopard frog whose spinal cord and brain were severed. In order to carry out the experiments, the materials needed were one medium length surgical scissor, two hemostats and glass dissecting probes, a nine and four inch string, a cup of Ringers saline solution with an eyedropper, and a hook electrode. The software used to analyze and record the data was the BIOPAC system.
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.
In this lab, I took two recordings of my heart using an electrocardiogram. An electrocardiogram, EKG pg. 628 Y and pg. 688 D, is a recording of the heart's electrical impulses, action potentials, going through the heart. The different phases of the EKG are referred to as waves; the P wave, QRS Complex, and the T wave. These waves each signify the different things that are occurring in the heart. For example, the P wave occurs when the sinoatrial (SA) node, aka the pacemaker, fires an action potential. This causes the atria, which is currently full of blood, to depolarize and to contract, aka atrial systole. The signal travels from the SA node to the atrioventricular (AV) node during the P-Q segment of the EKG. The AV node purposefully delays
The production of physical movement in humans requires a close interaction between the central nervous system (CNS) and the skeletal muscles. Understanding the interaction behind the mechanisms of these two forces, and how they are activated to provide the smooth coordinated movements (such as walking or picking up a pencil) of everyday life is essential to the study of motor control. Skeletal muscles require the activation of compartmental motor units that generate their own action potentials, and produce a voltage force within the muscle fibers that can be detected and recorded with the use of a electromyography (EMG). Therefore, the purpose of this lab was to determine the differences between the timing of force production
This study observed the standard and routine metabolic rates and swimming activities of nurse sharks. Nurse sharks use buccal pumping to rest on the sea floor. This sedentary behavior had not yet been studied in relation to metabolic rates before this study. This study also is one of few that observed the effcts of temperature on metabolism in sharks. By assessing the relationship between routine metabolism and ecology, a more precise understanding of the nurse sharks daily energy requirements could be obtained.
In this lab we try and figure out the effects of exercise on cellular respiration, and identify a role of carbon dioxide production, breathing rate, and heart rate in determining the rate of cellular respiration. To do this we made a Phenol Red solution and used a straw to blow into it with no exercise to see how long it would take for the color of the Phenol Red solution to change, after this we measured our heart, and breathing rate. Then we did these same steps again after 1 minute, then another 2 minutes of exercising (Note: This lab was incomplete). The problem of this lab is “ How will carbon exercising, and increased carbon dioxide production affect the color of the Phenol Red, our heart rate, and our breathing rate. I hypothesize that if we exercise then we will affect our cellular respiration, and cause the Phenol Red to change color in a faster rate, because when we exercise we breathe heavily resulting in a higher carbon dioxide production which will cause the Phenol Red to change at a faster rate.
As you read this question, cells in your eyes are sending information to your brain which your brain uses to form an image of the words that you read. Is this information being sent along afferent or efferent nerves?
Graham, TE. (1998) Effects of Caffeine on Metabolism, Exercise Endurance and Catecholamine Responses and Withdrawl. London
The procedure for this lab was separated into two sections, one pertaining to the muscle activities and other for nerve activities. In the muscle section, data was acquired through the use of iWorx TA unit in conjunction with LabScribe 3 software. The iWorx TA unit was also connected to stimulating electrodes and a pressure ball. Sticky pads were placed on the forearm and readjusted until optimal motor point was located. A specific software setting and the correct procedure to locate the point can be found on the Muscle lab manual (*-*-*-). The ball must be grasped in a relaxed state with minimal pressure. The pressure on the ball resulting from the contraction is recorded in Volt (V). For each part the provided parameters were set in the software.
The basic outline of the experiment consisted of a control group and an experimental group; both groups contained endurance-trained cyclists who had fasted beforehand. The cyclists were required to maintain a constant 70% aerobic workload while they cycled. The control group was given a sweet drink that did not suffice as an energy source; the drink contained aspartame (NutraSweet) which has no nutritional value. The other drink contained nutritionally useful carbohydrate that had an equally sweet flavor. Cyclists were not told which drink they were receiving. This was done to avoid biases (such as cycling harder with the carbohydrate drink to "please" the scientists) from entering the experiment and thus corrupting the data.
For the Independent variable I will change the rate of physical activity after 30 seconds of exercise. For the dependent variables I will measure how exercise affects peak flow. For the control variables I should be standing so that my body can maximize the air capacity, I should measure the peak flow within 30 seconds after the exercise so that I can get the best result if I leave it any longer my peak flow will start to decrease, I will do the same exercise so I am unbiased, and allow three minutes of rest between each trail so the body can restore to its nautral resting rate.
AIM: - the aim of this experiment is to find out what the effects of exercise are on the heart rate. And to record these results in various formats. VARIABLES: - * Type of exercise * Duration of exercise * Intensity of exercise * Stage of respiration
This test was performed on a 22-year-old trained male. This subject will be referred to as subject two for the remainder of this report. Subject two’s height was measured using a stadiometer and his weight was measured using a tenita scale. His height was reported to be 188 cm and his weight was reported to be 105.7 kg. Subject two was then placed on the cycle ergometer and the seat height was adjusted. His knee flexion was measured using a goniometer and was 15° flexed. The subject’s resting heart rate was measured and found to be 76 bpm and his resting blood pressure was measured and found to be 115/70 mmHg. Subject two was instructed to begin a 4-minute warm-up, pedaling at approximately 50 rpm with no resistance. Following the warm-up, the exercise phase began. Based on the training level reported by subject two, resistance was set using the YMCA Test Guidelines for Setting Workloads on the Cycle Ergometer for the duration of the test. The first workload was set at 1 kilopond. A different technician, reported heart rate on subject two than who reported heart rate on subject one in the Astrand-Rhyming test. This technician was instructed to report heart rate during the last 30 seconds of the second and third minute by a separate technician. The heart rate was then multiplied by 2 to result in an overall heart rate of beats per minute. A different technician reported blood pressure on subject two than who
The Effects of Dietary Acid Load on Exercise Metabolism and Anaerobic Exercise Performance, outlines experimentation designed to determine how systemic pH affects exercise metabolism and anaerobic exercise performance. Since systemic pH can be varied through diet, determining how exercise metabolism as well as anaerobic exercise performance changes in response to systemic pH can help athletes make more educated decisions on dietary consumption before competitions. Caciano, Inman, Gockel-Blessing, and Weiss sought to measure these affects by conducting a cross-over trial, using randomized and counterbalanced intervention of participants’ diet. A low-potential renal acid load (PRAL) diet is alkaline promoting, and includes foods such as fruits
I have been playing sports my whole life. I started cheerleading when I was in first grade, played softball until fourth grade, and then started playing basketball. I played basketball non-stop from the fourth grade all the way up until senior year of highschool. I played both travel basketball, school basketball, and I was even training during the off season. I have always known when I was not able to play sports anymore, I still wanted to be surrounded by them. I did not care what sport it was. I had switched back and forth between many majors during high school including athletic training, coaching, and physical therapy. Junior year of high school I had a teacher named Mrs. Mercer. She was an incredible teacher that taught both sports medicine