PREDICTIONS 1. During exercise: HR will increase 2: During exercise: SV will increase 3. During exercise: CO will increase MATERIALS AND METHODS 1. Dependent Variable: EDV, ESV, and cardiac cycle length 2. Independent Variable: level of physical activity 3. Controlled Variables: age, weight, height 4. What instrument was used to measure cardiac volumes? MRI 5. Does the instrument that was used to measure cardiac volume use X-rays? Explain. No. MRI uses a powerful magnet in conjunction with radio frequency waves to generate images of your internal organs and structures.
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.
Introduction The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in
Discussion Interpretation and evaluation According to the results, the time of prior exercise and the average number of cycles after the exercise were inversely proportional. The time of prior exercise assumed to be approximately proportional to the amount of exercise. Also, the number of cycles presumed to be inversely proportional to muscle fatigue. This is because greater muscle fatigue would prevent faster rate of muscle contraction, this would result in performing a lower number of cycles during a given period. Hence, based on the graph, it was inferred that the amount of previous exercise and muscle fatigue would have a positive linear relationship. This implies that as the amount of previous exercise increased the macule fatigue increased accordingly.
1) Make a graph of resting heart rates from Activity 1. Provide a physiological explanation for fluctuations in resting heart rate over time. Discuss a couple of extrinsic factors that influence the autonomic nervous regulation of resting heart rate.
James Edwards 03/04/1985 CU2698 Undertake Physiological Measurements 1. 1.1 2. Physiological state in defined as “the condition or state of the body or bodily functions”. This can be measured when we perform our observations. By measuring a patient’s respiratory rate, oxygen saturations, peak flow (in asthma patients), pulse rate, systolic and diastolic blood pressure, core temperature, blood sugar, pupil reaction and Glasgow coma scale. All these combined measurement can give us an insight into the patient’s health or Physiological state.
evenly. My first 200 meters again took 45 seconds—on pace for a second six-minute mile. The next 200
The purpose of this lab was to better understand the human body by doing various activities and observing the three different muscle types. The activities were not conducted in order, but we did follow the instructions of each activity. However, there could be deviation since Vivian had allergies and I was sort of sick as well so our result may not be as accurate. By conduction the activities, we were able to analyze the different receptors in the skin and sense—for instance understanding the differences in receptors or taste and smell. Also, we were able to differentiate the three muscle types and observe the striation of the cardiac and skeletal muscle—and observe other differences in muscle types. By noticing that, for instance the tongue has different regions for different taste, we were able to infer that some taste are more important to distinguish than others. Also, by observing the different types of muscle, we were able to discuss the different functions and why the cardiac and skeletal muscle have striation. Lastly, it is important to understand the human body, not
The purpose of this experiment was to be able to test different intensities of warm-up conditions changes in the heart rate, skin temperature, electromyogram (EMG), and the contraction of the bicep brachii. Testing three different intensity conditions to determine which warm-up is more efficient on muscle conditioning. Bicep stretches, cardio, and aerobic stretching were the three different conditions because they focused on different muscles in the body. The warm-up that is able to efficiently deliver more oxygenated blood to the muscle is the most affective. Therefore, the predictions is that aerobic stretching will enhance muscle performance of the bicep brachii. This will happen because aerobic stretching is a high intensity warm-up that increases heart rate and cardiac output.
This month I did 1800 minutes of exercise! Every day I wake up at 6:45 and I play until 7:45. I do a lot of fitness and work on soccer at that time. In the morning I do running, jump rope, and do soccer drills with my dad. This month, I learned how to head a soccer ball and improve my touch on the ball. My dad taught me how to do these techniques and he got the fear out of me. I also got a new record with juggling a soccer ball and jump rope. I did 632 juggles and I jumped roped 72 jumps at a stretch. I improved my fitness a lot his month. I had a much better performance after practicing on game-day than the last week's game. I practice soccer at least 2 hours everyday. I also scooter or bike to school 3 times a week. I live about 10 minutes
The experimental procedures for Lab 2 were provided on Blackboard labelled as “Pre-Lab 2: Techniques & Measurement”.
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)
Muscle fatigue is the process of exhaustion or strength lost, as well as muscular endurance that corresponds with the building up of lactic acid in the muscles (Medical Dictionary) Throughout the lab it was discovered that the greater the number of muscles in the body that are used, the more fatigue builds up, and it becomes difficult to use those muscles. According to table 1.2 and 1.3, there was a decrease in the number of squeezes of a clothespin that were completed in 30 seconds for each of the 10 trials. As the number of trials were increased it became difficult to press the clothes pin quickly and efficiently, causing the fingers’ pace to slow down. The first couple of trials were easily completed without muscle soreness since the
This was definitely an eye opening research discussion. I really took my time to find a unique product that no one has really heard of before. I found this assignment fun and educational. I found a very odd and strange product, try not to laugh. The product is called the Blood Type Workout by Doctor Joseph Christiano. The basic overview of this product is that you will loose weight fast by reprogramming your metabolism ( As Seen On TV). This product was basically stating that because we have natural chemistry in our body , that if we diet and exercise based off of our blood type , then we will most likely loose weight. I chose this product was because it sounded too good to be truly and just something that I have never heard of before. I really
Conclusion – Exercise has an effect on 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.