Skip to main content

Muscle Fatigue and Lactic Acid Lab Write-Up February 2, 2018

Muscle Fatigue and Lactic Acid Write-Up 

By Mariah Lopez

The conclusion of the Lactic Acid Lab was that  lactic acid that the muscle built up causes the number of squeezes done to the racquetball to decrease due to muscle fatigue. This occurred because of the high energy demand that we need to complete the task of squeezing a racquetball for 30 seconds. Lactic acid was then formed and built up in the muscle because of irregular rising requirement of energy and the insufficient supply of oxygen (02). The evidence shows that the in the initial trial the most squeezes occurred and in our case of number was an average of 28 squeezees on the first trial. As time progress, the built up of lactic acid caused muscle fatigue and over time the number of squeezes gradually decreases. By the end of the ten trials our average was 19 squeezes. This was a  vast difference from the initial number. The concluding graph also showed a gradual decay in squeezes as an average.  When you work your muscles a lot in a short amount of time, your muscles cannot get the oxygen they need for aerobic respiration. Instead, your muscles undergo anaerobic respiration and produce lactic acid. When the lactic acid builds up, you get a burning sensation followed by pain in that muscle. I knew that some type of fatigue would occur because the energy it took to squeeze the racquetball rapidly for 30 seconds with a 30 second break. It felt as if there was not enough energy required to complete the difficult task because, as time progressed my muscle became tired and the ball felt stronger. 



Comments

Popular posts from this blog

3 Question Blog Sep. 8th

I completed many tasks this past week. I was able to finish all my work on time. I asked questions and asked for help from my table mates. When I understood something,  I would explain as best as I could to my peers. Recently I learned the difference between positive and negative feedback. I also learned how the feedback loop functions such as the stimulus and the response. I learned how to take blood pressure and how to measure the data. I learned more about regulation and how it allows the body to function correctly. This next week, I want to more involved by asking questions. I want to make sure I describe in details what I do not understand. By next week, I want to be more confident in identifying the regional names of the body and understand the directional terms and how they relate. I want to be more open with my group and help as much as I can so that I can help them understand and so that I help myself remember.

3 Question Blog November 2, 2017

1. I have completed the section of the integument system. I completed case studies and a test over all. I finally completed organizing my notebook. It was a complete disaster. I have also completed my glog over a skin disease. I had picked eczema just because I have a mild case of it on my arms, and did not really know much about it.  2. I have learned quite a lot in the past two weeks. I learned it is easy to forget things and even harder to make up for lost time. I learned to not forget my notebook for class, especially on a day of the test. I've learned more about the skin that I did not know. I also learned quite a bit about Eczema. It is crazy how much I did not know about the skin disease, although I have it. I learned that it can be inherited through genes and may be caused by an allergic reaction.  3. I'm not going to lie, these past few weeks have been difficult. I recently got a job and now I work for 4-10 most nights. I've found it kinda difficult to balance t...