StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...
Nobody downloaded yet

Effect of Exercise on Skeletal Muscle - Coursework Example

Comments (0) Cite this document
Summary
"Effect of Exercise on Skeletal Muscle" paper determines whether there are any alterations in the metabolic and mitogenic pathways in skeletal muscle physiology of normal persons and highly trained athletes. The stimulus for this study was provided by past research…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER91.9% of users find it useful
Effect of Exercise on Skeletal Muscle
Read TextPreview

Extract of sample "Effect of Exercise on Skeletal Muscle"

Download file to see previous pages Alterations in glycogen metabolism, glucose and amino acid uptake, protein synthesis, and gene transcription have been well documented (Widegren et al, 1998), but the mechanisms involved are still unclear. Intracellular signaling mechanisms after a skeletal muscle is subjected to intense exercise result in changes to gene expression which has resulted in many putative elements to be studied, prominent amongst them being the Mitogen-activated protein kinase (MAPK) which has two parallel pathways including the extracellular signal-regulated kinase (ERK), stress-activated protein kinase cascades (SAPK1/JNK) and the extracellular signal-regulated kinase 5 (ERK 5) and 5`-AMP-activated protein kinase (AMPK) cascades (Mei Yu et al, 2002). The physiological activation of enzymes downstream of the MAPK cascade has been under intense study (Krook Anna et al). It is a major signaling system by which cells transducer extracellular signals into intracellular responses (Aronson Doron et al, 1997). The overall impact is a marked alteration in the structure and functioning of the human skeletal muscle. Exercise not only affects the upstream cascade of the MAPK cascade but also increases the activity of upstream regulators of MAPK and other associated molecules (Aronson Doron et al, 1997).

Numerous studies have been conducted on this aspect and this study (Mei Yu, et al, 2002) in particular focuses on MAPK and AMPK cascades by comparing them in volunteers chosen from two groups, one group involving highly trained cycling athletes and the other one of normal/control persons, by subjecting them to pre-calculated equivalent exercise stress according to their capacities, to further differentiate if there are any changes in the cascades between the two groups. The oxygen uptake of the two groups has also been strategically predefined in order to provide similar inputs to both groups in order to avoid abnormality in the result due to this factor. ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(Effect of Exercise on Skeletal Muscle Coursework, n.d.)
Effect of Exercise on Skeletal Muscle Coursework. https://studentshare.org/biology/1715924-review
(Effect of Exercise on Skeletal Muscle Coursework)
Effect of Exercise on Skeletal Muscle Coursework. https://studentshare.org/biology/1715924-review.
“Effect of Exercise on Skeletal Muscle Coursework”. https://studentshare.org/biology/1715924-review.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Effect of Exercise on Skeletal Muscle

Skeletal System

... risk of fractures; that is breaks or cracks than in normal bone. In Gina’s case, Low impact exercises such as biking, walking and swimming is required for her osteoporosis and to improve her strength because it does not create too much stress to increase bone mass. ‘Plus by exercising, you strengthen your muscles and stronger muscles also help protect your bones’ (Lindsay et al 2008). To increase bone density, 'A regimen of eight to 10 weight bearing and resistance exercises with 8-12 repetitions per set is recommended.' (Body Sculpting, 2011) 4. 'Bone marrow is a soft fatty tissue found inside of the body's bones - such as the sternum (middle of the chest), pelvis (hip bone), and femur (thigh bone)' (Lab Test Online, 2010). The marrow...
1 Pages(250 words)Research Paper

The skeletal system

...?The human skeletal system is responsible for giving shape to the body and also plays a vital role in protesting organs and locomotion. The bones andits associated cartilages and joints together comprise the skeletal system of the body. While bones are formed of a tough and rigid form of connective tissue which is highly mineralized with calcium deposits, the cartilages are not very tough and are do not possess a high degree of mineralization. The joints that connect a bone to another bone, a bone to a cartilage or a cartilage with another cartilage are important components of the skeletal system as they are responsible for the mobility of the human body (Skeletal system, n.d). A new born infant usually possess around 230 bones while...
2 Pages(500 words)Essay

Skeletal Muscle Contraction

...? SKELETAL MUSCLE CONTRACTION Skeletal Muscle Contraction Skeletal Muscle constitutes 40% of themuscles in the human body while the smooth muscle and the cardiac muscle form 10% of the entire muscle content. Skeletal muscle fibres are the voluntary group of muscles that are range from the small muscles in the eyes to the large and powerful muscles in the calf that cause leg movements. Anatomically skeletal muscles are composed of a number of fibres and each fibre is then further composed of smaller sub-units. These smaller fibres are called as myofibrils. The cell membrane of the muscle fibre is called as the sarcolemma which fuses at the end of each muscle fibre with the tendon and hence inserts the muscle into the bone (Guyton & Hall...
8 Pages(2000 words)Essay

Skeletal Surveys

... abnormalities that may exist within the skeleton. These include fractures which may be healing, as well as fractures across a range of ages. The survey aids in the assessment of differentiating developmental changes from other anatomical changes that may occur for a child or infant. There are several indications for a skeletal survey: 1) For suspected physical abuse of infants and children; 2) For suspected skeletal dysplasias, syndromes and metabolic disorders; 3) Suspected neoplasia and related disorders. Several guidelines exist to aid radiologists in the effective and efficient use of radiology for young patients. However, in the UK there is no accepted policy of who and when a skeletal survey should be undertaken, unlike in the USA...
20 Pages(5000 words)Essay

Contraction in Smooth Muscle Cells compared to Contraction in Skeletal Muscle Cells

In this assignment, based on studies, a comparison has been drawn between the contractions of these two types muscles at the cellular and molecular levels. Before going into this discussion, contraction must be defined. Contraction is defined by activation of the muscle fibers with a demonstrable shortening of the muscle fibers2. The physiological events in relation to muscle contraction have been delineated in great detail, and they reveal that basically, with neural stimulation there occurs a series of molecular events initiated by increase in the cytosolic calcium concentration. In this assignment, these events will be looked at in a greater detail to compare these events between the striated and nonstriated muscles.
Each...
5 Pages(1250 words)Essay

The Effect of Exercise on Pulse Rate

...The Effect of Exercise on Pulse Rate Background of the Study The rationale for carrying out pulse measurement is to both heart rate and rhythm, since the heart pumps blood throughout the body, the rhythm with which this is done may be detected through the wrist, neck and upper arm. These body parts are particularly sensitive since they have an artery close to the skin surface. The pulse rate is conventionally measured in the number of beats per minute (bpm) and is said to be influenced by a diverse range of conditions, including exercise, fever, and stress among others. The current study was designed to determine the effect of exercise on pulse rate. Methodology 30 healthy individuals between 18-25 years old have been asked...
3 Pages(750 words)Essay

Muscle Dysmorphia

Muscle Dysmorphia Give a definition of the health problem Muscle Dysmorphia (MD) is a psychological condition identified recently whereby muscular men experiencing this predicament deem they are not muscular. They see themselves as being smaller than how they actually appear. Muscle Dysmorphia is similar to how eating disorders present in women in that men have cognitive distortions and behavioural indications that maintain the predicament (Grieve, Truba & Bowersox, 2009). The MD diagnostic criteria include men with levels of muscularity and strong desires to increasing musculature, excessive weight lifting despite injuries, extreme dieting plus diet supplements and steroids for increasing lean muscles and lack of personal relatio...
2 Pages(500 words)Research Paper

Muscle Dysmorphia

...MUSCLE DYSMORPHIA Lecturer’s Primary audience Muscle Dysmorphic Disorder also referred to as “reverse anorexia” is a condition in which the affected pursues muscularity to an excessive extent and end up suffering from obsessive thoughts leading to exercise dependence or even substance abuse to the individual (Pope et al., 2005). The primary audience for the proposed program will be youths of both genders at the Gym facility at the university of Florida. The disorder normally affects adolescents, and the mean age of occurrence has been stipulated to be 20 year. The audience for the program will be between 18 to 25 years thus fitting well in the age brackets. Adolescent boys are more susceptible of acquiring the disorder since during...
1 Pages(250 words)Essay

The Effects of Alcoholism on Skeletal and Cardiac Muscle

A good way for you to reduce the rate of taking alcohol is by only taking it at official gatherings such as dinners and weddings. Were you take it in small portions, rather than going to a pub and spend most of your time drinking all day and night, and in the process you will abstain from alcoholism.
As I come to the end of writing this letter, I have told you the effect of alcohol taking; It will be of no good to your health, and it will be so risky. Take care sister and I wish you all the best in the upcoming exams.
Your brother forever
1 Pages(250 words)Essay

The Effect of Plyometric Training on Muscle Strength

...The effect of plyometric training on muscle strength and speed performance Exercise training interventions generally aim to maximise the physiological effects that lead to better performance. All athletes seek to improve enormously, through various types of exercise, their skeletal muscle especially in the arm, legs, and torso that are important for the bodily movements. Plyometric training is a widely used technique for enhancing athletic performance. Plyometric exercises are also known to decrease injury risk especially in female athletes. Motion is the basis of life in humans and the organ directly related to motion is muscle. All our bodily movements, including involuntary physiological movements, are performed by muscles. Adequate...
19 Pages(4750 words)Research Paper
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Coursework on topic Effect of Exercise on Skeletal Muscle for FREE!

Contact Us