Essays Tagged: "Muscle contraction"

Blood lactate and training to improve threshold

Type II muscle fibers oxidize lactate at a very fast rates. When muscle contraction produces a significant a ... released into the central circulation of the blood, and within seconds it is made available to that muscle for energy. Therefore, 75% of the lactate produced from high intensity exercise is made avail ... he lactate produced from high intensity exercise is made available for energy production in type II muscle fibers. The remaining 25% of lactic acid is used for energy in the heart, the make up of live ...

(5 pages) 84 0 5.0 Nov/1996

Subjects: Humanities Essays > Health & Medicine > Sports

Manual Therapies in the treatment of injuries

Bones and muscles, ligaments and tendons comprise nearly 60 percent of the body. Manual medicine practitioners ... p and feel pain. An ailing hard drive, as computer users know, spells trouble. "Wiring" problems in muscles and joints can affect the entire body, sometimes surfacing as pain, hearing loss or migraine ... , hearing loss or migraines. Varieties of manual therapy range from gentle stroking and kneading of muscles and other soft tissues to deeper manual techniques. Some focus on one specific function of t ...

(7 pages) 186 0 4.6 Feb/2003

Subjects: Humanities Essays > Health & Medicine > Sports

Thyroids

KEY TERMSKey Terms and ConceptsThe Control of Movement1. Muscles and their movementsCategories of muscleSmoothSkeletal or striatedCardiacPrecise movements: f ... rdiacPrecise movements: few muscle fibers innervated by each axonNeuromuscular junctionAcetylcholineMuscle contractionAntagonistic musclesFlexorExtensorMyasthenia gravisAutoimmune attack on acetylchol ... cholinesterase (enzyme that breaks down acetylcholine)Prolongs action of acetylcholineFast and slow musclesFishRed, slow, resistant to fatiguePink, intermediate speed, moderately resistant to fatigueW ...

(3 pages) 69 0 3.0 Mar/2003

Subjects: Science Essays > Biology > Human Biology

Biology notes on "The Muscular System."

The Muscular SystemMuscles are what allow and make your skeleton able to move around. The muscles are attached to the b ... ched to the bones by strips of dense connective tissue called tendons. The origin is one end of the muscle which remains stationary during a muscle contraction. This gives the muscle something to pull ... ontraction. This gives the muscle something to pull against. The insertion is the other side of the muscle, it is attached to a bone that moves when the muscle contracts. A muscle's insertion always m ...

(1 pages) 53 0 4.3 Aug/2003

Subjects: Science Essays > Biology > Human Biology

Mutation in gene Unc-93 results in apparent muscle defects in C. Elegans.

Mutation in gene Unc-93 results in apparent muscle defects in C. Elegans.John MathewJoshua KistnerDr. ... e in phenotype to a lethal change in the cell. Unc-93 in Caenorhabditis elegans is responsible for muscle contraction. DNA strains from three worms: LU-55, LU-57, and N2 are extracted, purified, and ... nd N2 are extracted, purified, and analyzed to find out if a frameshift mutation causes the loss of muscle contraction in the C. elegans. Data obtained from the Gel Electrophoresis suggests that N2 i ...

(11 pages) 51 0 5.0 Dec/2003

Subjects: Science Essays > Biology

Excersise physiology - energy systems explained, eg lactic acid etc

heavily upon the lactic acid system for A.T.P energy.*Oxygen SystemFirstly uses glucose from either muscle tissue or from the liver and secondly breaks down fatty acids. The main fuel is glucose.What ... he liver and secondly breaks down fatty acids. The main fuel is glucose.What is A.T.PThe Energy for muscle contraction which comes from the breakdown of a chemical compound named adenosine triphosphat ...

(4 pages) 48 0 5.0 Mar/2004

Subjects: Humanities Essays > Health & Medicine > Sports

Muscle Fatigue

Muscle fatigue is weakness or weariness resulting from exertion or prolonged stress and the failure ... ase of H+ in a cell causes the pH to decrease, which causes the cell to become acidic. The acids in muscles cause the fibers' calcium-binding capacity to decrease, which then limits muscle contraction ... ty to decrease, which then limits muscle contraction, which causes muscle fatigue. (Mullick) During muscle fatigue, feedback of nerve impulses from the fatigued muscles interrupts on a part of the ret ...

(2 pages) 52 0 4.8 Apr/2004

Subjects: Science Essays > Biology > Human Biology

Female weightlifting

do, but most of us don't. One specific change people can make for their bodies is to increase their muscle mass. In order to increase muscle mass, people need to strength train. The procedure that the ... form to increase its size by strength training is the same in both men and women. The components of muscle in the male and female body are the same. Although the effect on the rest of the body from in ...

(8 pages) 45 0 3.3 May/2004

Subjects: Humanities Essays > Health & Medicine > Sports

Notes on the muscles

Diseases matching--Myopathy-any disease of the muscles.-Atrophy-polio, decrease in the size of a muscle due to lack of use following lossof motor n ... se following lossof motor nerve.-Contracture- cramp or charley horse, shortening of the fibers of a muscle,myotonia-muscle fails to relax .-curare-neuromuscular juncion, inactivating acetylcholine and ... ion, inactivating acetylcholine and thereby preventing the transmission of an impulse from nerve to muscle, flaccid (limp) paralysis results.-Eserine, blocks the action of cholinesterase and permit ac ...

(2 pages) 28 0 1.8 Dec/2004

Subjects: Humanities Essays > Health & Medicine > Diseases

Biomechanics: static jumping

s kinetic energy and consequently increases jump height (Lees, Clercq and Vanrenterghem, 2004).When muscles contract concentrically force is placed on the bone via tendons and movement occurs at the j ... e bone via tendons and movement occurs at the joint. This contractile force can be increased if the muscle performs a lengthening contraction before the commencement of the muscle shortening contracti ...

(4 pages) 39 0 1.0 Aug/2005

Subjects: Science Essays > Physics

Energy.

cal energy in food is converted to chemical energy in ATP and thenconverted to mechanical energy of muscle contraction.2. Second law of thermodynamicsa. Energy cannot be changed from one form into ano ... ergy.b. 25% of chemical energy of gasoline is converted to move a car; rest is lost as heat.c. When muscles convert chemical energy in ATP to mechanical energy, some is lost as heat.d. Heat is form of ...

(2 pages) 45 0 4.0 Nov/2005

Subjects: Science Essays > Biology

The Contraction and Mechanism of Rabbit Muscle

s the energy for most of the energy consuming activities of the cell. The demonstration of skeletal muscle contraction was presented by A. F. Huxley, 1957. His hypothesis showed the importance of  ... hypothesis showed the importance of “the size of the power stroke in isometrically contracting muscle fibers” (Ferenczi 1). To better understand muscle contraction and muscle contraction ...

(4 pages) 29 0 3.0 May/2007

Subjects: Science Essays > Biology

Muscle, Genes And Athletic Performance

In this particular article we were asked to read it talked about muscle, genes and athletic performance. It was mainly focused on runners than any other sport. Also ... urice faster than that of the world's second fastest man. It says that this is due to the fact that muscle fibers are able to generate more power. This is due to the fact that contraction speed of the ... wer. This is due to the fact that contraction speed of the fibers in different bodies is different. Muscle contraction of the fibers is due to the way that different fibers break down adenosine tripho ...

(2 pages) 14 0 0.0 Dec/2001

Subjects: Science Essays > Biology

Elements and the Human Body - Calcium

ng bones and teeth. Calcium is also needed for the storage of glycogen. Glycogen is what gives your muscles the energy they need and is important for muscle contractions. Calcium also activates the pr ... ium also activates the protein fibrin which is used for blood clotting, to regulate the heart beat, muscle tone, muscle contraction and nerve conduction. Calcium is a vital component of spinal fluid a ...

(4 pages) 18 0 3.0 Dec/2007

Subjects: Science Essays > Chemistry

Hypercalcemia effects and treatment for Palliative Care patient

on and relaxation of blood vessels (vasoconstriction and vasodilation), nerve impulse transmission, muscle contraction, and the secretion of hormones.Excitable cells, such as skeletal muscle and nerve ... in their cell membranes that allow for rapid changes in calcium concentrations. For example, when a muscle fiber receives a nerve impulse that stimulates it to contract, calcium channels in the cell m ...

(6 pages) 2744 0 0.0 Dec/2008

Subjects: Humanities Essays > Health & Medicine > Diseases

electromyography

of this lab was to determine how much electrical activity was conducted through the flexor digitorm muscles of the forearm of both the dominant and non-dominant arms using electromyography. The electr ... dominant and non-dominant arms using electromyography. The electrical activity increased within the muscles that are contracted with each stronger contraction. Electromyography records the electron si ...

(7 pages) 2 0 0.0 Sep/2014

Subjects: Humanities Essays > Health & Medicine > Health & Fitness

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GY CHAPTERS 9, 10, 12 PRE-TEST 3 1. The outermost layer of connective tissue surrounding a skeletal muscles is called the A. epimysium B. perimysium C. endomysium D. sarcomysium 2. Myofibrils are comp ... anaerobic concentration D. aerobic conversion 7. The all-or-none response means that A. all of the muscles in a region contract together B. all of the muscle fibers within C. when a muscle fiber cont ...

(13 pages) 3 0 0.0 Oct/2014

Subjects: Businesss Research Papers