Please complete your answers to the lab questions on this form. Please complete your answers and SAVE the file in a location which you will be able to find again. Then, attach and submit the completed form to the Week 2
...
Please complete your answers to the lab questions on this form. Please complete your answers and SAVE the file in a location which you will be able to find again. Then, attach and submit the completed form to the Week 2 Laboratory drop box in the Ashford University classroom.
Result Tables
Table 1: Muscle Fatigue Data
Trial Time (Seconds)
Trial 1 128 Seconds
Trial 2 104 Seconds
Trial 3 91 Seconds
Post-Lab Questions
1. Did you notice any changes in the amount of time you could perform each wall sit, or how your legs felt after each of the trials?
2. Explain the actions that were occurring at the molecular level to produce this movement. Include sources of energy and any possible effect of muscle fatigue.
exercise is used you would feel some burning from the legs, and once the exercise is over, there is tightness coming from your legs and lower stomach.
3. Hypothesize what would happen if blood flow was restricted to the leg when this experiment performed.
4. How do banding patterns change when a muscle contract?
5. What is the difference between a muscle organ, a muscle fiber, myofibril, and a myofilament?
6. Outline the molecular mechanism for skeletal muscle contraction. At what point is ATP used and why?
.
Reference:
Misuk Cho, Ph.D., PT (2013) The Effects of Modified Wall Squat Exercises on Average Adults’ Deep Abdominal Muscle Thickness and Lumbar Stability https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3804993/
Michael J. Joyner and Darren P. Casey (2015) Regulation of Increased Blood Flow (Hyperemia) to Muscles During Exercise: A Hierarchy of Competing Physiological Needs https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4551211/
Walter Herzog, Krysta Powers, Kaleena Johnston, and Mike Duvall (2015) A new paradigm for muscle contraction https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4461830/
Allison R. Gillies, B. and Richard L. Lieber, Ph.D. (2011) Structure and Function of the Skeletal Muscle Extracellular Matrix https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3177172/
Baljit S. Khakh and Geoffrey Burnstock (2010) THE DOUBLE LIFE OF ATP https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2877495/
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