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Topic: Exertion

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	How dangerous is vigorous exertion? --- HealthandAge
		To help define vigorous exertion at baseline, subjects were asked, "do you exercise vigorously enough to work up a sweat?" Subjects were asked at 36 months into the study to give the usual duration of their exercise sessions.
		The risk of sudden death associated with vigorous exertion was one death per 1.42 million person-hazard periods.
		Triggering of sudden death from cardiac causes by vigorous exertion.
	www.healthandage.com /PHome/gid2=1054 (905 words)

	Exertion (Site not responding. Last check: 2007-10-16)
		This exertion too sustains the the sun, moon, and the stars; it sustains the earth and sky, body and mind, object and subject, the four elements and five skandhas.
		A mirror is brightened, a mirror is broken and it is a manifestation of sustained exertion.
		To attempt to avoid exertion is an impossible evasion because the attempt itself is exertion.
	hjem.get2net.dk /civet-cat/zen-writings/exertion.htm (347 words)

	breathlessness on exertion - General Practice Notebook (Site not responding. Last check: 2007-10-16)
		Physiological breathlessness on exertion is the sensation of increased work of breathing which the patient usually recognises as being normal for the degree of exertion.
		Pathological dyspnoea on exertion is the sensation of breathlessness at a lower level of exertion than is normal for the patient.
		During exertion the requirements for an increased cardiac output result in a tachycardia and consequently, a reduction in the ventricular filling time.
	www.gpnotebook.co.uk /cache/2033516566.htm (172 words)

	Exertion (Site not responding. Last check: 2007-10-16)
		The use of your perceived exertion is helpful in monitoring intensity in order to avoid uncomfortable exercise sessions.
		Perceived exertion is assessed by use of a 0-to-10 chart to rate the feelings caused by your exertion.
		Remember, the rating of your exertion should be completely independent of the pace you think you are walking; it is dependent solely on the feelings caused by the exertion.
	liftforlife.homestead.com /Exertion.html (521 words)

	PHYSICAL EXERTION AND POLIO
		Physical exertion, when immoderate, is accompanied by strong and prolonged muscular contractions which are performed at the expense of the blood sugar and result in a severe drain on liver glycogen stores.
		Thus the combined effect of physical exertion and the ingestion of sweets may greatly depress the blood sugar and thereby favor the onset of polio.
		That polio may develop in such a short time after exertion is further suggested by the fact that I was able to infect rabbits after 8 to 10 hours when the rabbits’ blood sugar was experimentally lowered with insulin.
	www.whale.to /v/sandler6.html (1707 words)

	Sudden Death During Exertion Tied To Plaque Rupture
		In addition, the men who died suddenly during exertion had significantly higher cholesterol levels than those who died at rest, and most were not in good physical condition.
		Based on the autopsies and information from families of the dead men, the deaths were divided into two groups: those that occurred when a man was under stress, either physically or emotionally; and those that occurred while a man was at rest.
		Among the 25 who died during exertion, 14 were previously sedentary men who were involved in sudden, strenuous activity such as carrying a heavy object, moving furniture, pushing a car, mowing a law, digging a ditch, playing basketball, having sexual intercourse, bicycling, or shoveling snow.
	www.personalmd.com /news/a1999030915.shtml (335 words)

	Rating of Perceived Exertion & Talk Test (Site not responding. Last check: 2007-10-16)
		The Rating of Perceived Exertion (RPE) has long been encouraged for use in the group exercise setting in addition to heart rate checks.
		While the RPE scale is considered to be fairly reliable as a means to measure intensity, approximately 10% of the population tends to over or under rate their exertion (Morgan 1981).
		But with perceived exertion, as their body adapts to the challenges, they will tend to judge their level accordingly.
	www.ginmiller.com /gmf04/artinfo/THR4rpetalktest.htm (750 words)

	Sport Journal, EFFECTS MUSIC HAS ON LAP PACE, HEART RATE, AND PERCEIVED EXERTION RATE DURING A 20-MINUTE SELF-PACED RUN
		It is believed that heart rate and rating of perceived exertion significance was only seen in untrained subjects but not in trained subjects because of source of error problems.
		The subjects were then showed a perceived exertion scale and explained the contents and meaning of the scale.
		There is no significant relationship on how the trained subjects rated their exertion rate while listening to music and having no music at all.
	www.thesportjournal.org /2002Journal/Vol5-No1/music.htm (2590 words)

	89091 -- Mudd v. Neosho Memorial Reg. Med. Center -- Nuss -- Kansas Supreme Court
		What is usual exertion, usual work, and regular employment, as those terms are used in the heart amendment, are facts to be determined by an administrative law judge and the Workers Compensation Board, which will be upheld on appeal where supported by substantial competent evidence.
		We ruled that when exertion was not an issue, the stroke/heart attack claimant could prevail by instead showing an "external force" was the precipitating cause of her disability.
		Moreover, the example cited by the Dial court is similarly external to the workers' exertion: After a worker is confronted by an armed assailant bent on robbery, he suffers a heart attack because of the natural fear and anxiety.
	www.kscourts.org /kscases/supct/2003/20030124/89091.htm (4254 words)

	Ca02-055
		-- Absent unusual exertion, the applicable test for compensability is whether the required exertion producing the injury is too great for the employee undertaking the work, whatever the degree of exertion or the condition of his health, provided the exertion is either the sole or contributing cause of the injury.
		To qualify as a compensable injury, the exertion of the work necessary to precipitate the myocardial infarction had to be extraordinary and unusual compared to the employee's usual work in the course of his regular employment or that some unusual and unpredicted incident must have occurred that was the major cause of the physical harm.
		While there was testimony that the concrete was drier than normal and that drier concrete required more physical exertion than wetter concrete, there was also testimony that the same concrete specifications for this project had been used on other projects that Mr.
	courts.state.ar.us /opinions/2002b/20021030/ca02-55.html (936 words)

	Exertion (Site not responding. Last check: 2007-10-16)
		Exertion increases as the character becomes fatigued, and reduces as the character rests.
		Thus a character whose Exertion equals or exceeds twice their Endurance begins to show the effects of that Exertion.
		Once a character's exertion reaches 8 times their Endurance, they can take no further voluntary actions that would result in additional Exertion.
	home.comcast.net /~jnryoung/j/trav/exertion.html (229 words)

	Ultracycling: Training by Perceived Exertion
		That is to say that well trained athletes' perceived exertions oftentimes equals their actual exertions.
		The term Perceived Exertion (PE) is the label given to describe the amount of energy one believes is being exerted towards a task.
		RPE research performed on subjects with internal or external loci of control showed that under low to moderate workloads the perceived exertion among all subjects (internal and external locus of control) is similar.
	www.ultracycling.com /training/perceived_exertion.html (1417 words)

	Cardiopulmonary Physical Therapy Journal: Rating of perceived exertion: Development and clinical applications for ... (Site not responding. Last check: 2007-10-16)
		Thus, the Ratings of Perceived Exertion Scales (RPE) were born.1,2 The development of the RPE scales and a summary of validation and reliability studies are the topic of this section.
		The first perceived exertion scale was developed to measure a range of exercise sensations.
		The perception of effort is a complex phenomenon, which requires integration of the multiple stimuli that are produced during a bout of exercise.
	www.findarticles.com /p/articles/mi_qa3953/is_199910/ai_n8859094 (1291 words)

	[No title] (Site not responding. Last check: 2007-10-16)
		As exertion moves on, the muscle switches from using the local glycogen store to the glucose in the blood (the glucose variable), and because the lactate from the aerobic glycogen burning has caused the glucose variable to be incremented, its value is higher than usual.
		Although the exertion is roughly half anaerobic, because the total amount of fuel is small, the fuel levels experience little change, and there is little to no buildup of lactic acid (yellow trace, bottom panel, right window) in the system.
		At first, the high exertion is compensated for by a rise in the amount of epinephrine (the yellow trace in the upper right hand corner is visible for a short period), and the exertion can continue.
	www.ai.mit.edu /people/bpadams/docs/meso_thesis.doc (4226 words)

	Extreme exertion, emotion can spark repeat heart attacks
		Authors Philip Strike and Andrew Steptoe of University College London point out that the triggers for heart attacks may be quite different from the factors that lead to development of coronary heart disease over the long term, such as cigarette smoking, lack of exercise, work stress, social isolation, anxiety and depression.
		In one study, people who exercised rarely were nearly seven times more likely to suffer a heart attack after strenuous exertion than those who exercised more than three times a week.
		For example, if a heart attack occurs after vigorous exertion, the patient may be fearful of future exercise.
	www.medicalnewstoday.com /medicalnews.php?newsid=21653 (644 words)

	Exertion Interfaces: Definition (Site not responding. Last check: 2007-10-16)
		An obvious approach for a vast majority of applications is to design interfaces that require the least amount of physical workload to use.
		An Exertion Interface is an interface that deliberately requires intense physical effort.
		Exertion Interfaces can be expected to be physically exhausting when used for an extended period of time.
	www.exertioninterfaces.com /exertion_interfaces/definition.htm (111 words)

	Extreme exertion, emotion can spark repeat heart attacks
		The review notes that "physical exertion has an apparently paradoxic association with triggering" severe chest pain, heart attack or sudden death.
		Nevertheless, point out the authors, the absolute risk of cardiac events after any single bout of activity remains less than one in a million, including sexual activity, where there is also a slightly elevated risk for heart patients.
		"The evidence of triggering by physical exertion and emotional stress is compelling," the authors observe.
	www.eurekalert.org /pub_releases/2005-03/cfta-eee031705.php (596 words)

	Exertion Interfaces: Summary
		An Exertion Interface combines the strength of both: the ability of sports to connect people socially, and the ability of telecommunications to connect people over a distance.
		This assertion is tested through the creation of a system called "Breakout for Two", in which two remotely-located participants play a physically demanding ball game against each other while communicating through an overlaid life-size video-conference.
		Exertion Interfaces, which are easy to learn, but hard to master, open a door to a new world of interfaces that facilitate social interaction between remote individuals.
	www.exertioninterfaces.com /exertion_interfaces/summary.htm (168 words)

	AIRNow - Air Quality Index Brochure (Site not responding. Last check: 2007-10-16)
		In general, you can reduce your risk by "reducing prolonged or heavy exertion." Prolonged exertion is an activity that occurs over several hours and makes you breathe slightly harder than normal.
		Reducing prolonged exertion could mean reducing the time you spend on this type of activity.
		Nitrogen dioxide, however, is a concern because it plays a significant role in the formation of ozone, particle pollution, haze, and acid rain.
	www.epa.gov /airnow/aqibroch/aqi.html (3352 words)

	Responses - AMD and Physical Exertion (Site not responding. Last check: 2007-10-16)
		Physical exertion does not necessarily have to be eliminated or drastically cut in patients with AMD.
		In fact, there is increasing evidence that judicious exertion is useful in patients with a variety of metabolic myopathies, including AMD.
		The symptoms that you describe after exercise do not imply liver or kidney dysfunction and are probably due to the massive release into the blood of muscle components.
	www.mdausa.org /experts/question.cfm?id=2031&disease=93 (408 words)

	For Some, Vigorous Exertion Raises Risk of Sudden Death
		Vigorous physical exertion appears to dramatically increase the short-term risk of sudden death from cardiac events, especially in people who do not exercise regularly.
		Vigorous exertion, as defined in the study published in the Nov. 9 issue of The New England Journal of Medicine, covers a range of activities from racquet sports to heavy yardwork.
		But researchers were quick to point out that the absolute risk of sudden death during a particular episode of vigorous exertion was extremely low for both regular and sporadic exercisers -- an estimated one sudden death was reported per 1.51 million incidences of exertion.
	my.webmd.com /content/article/29/1728_63636.htm?lastselectedguid={5FE84E90-BC77-4056-A91C-9531713CA348} (671 words)

	exercise video reviews: Cardio Coach Volume 3 (Audio)
		Each sprint is 30 seconds with a 30 second break in between (the break is at a level two exertion).
		At the beginning of the second minute your goal is to maintain your heart rate @75%-85% (level three)for one minute and the last minute you will reach a level four exertion or 85%-95% of max.
		Because you use perceived exertion I think that this workout would work for beginners as well as advanced exercisers.
	www.videofitness.com /reviews/omalley-ccv3.php (386 words)

	Mordechai Torczyner's WebShas - Index to the Talmud: Shabbat: Exertion on Shabbat
		Exertion for a Mitzvah: Berachot 6b, Shabbat 113a-b
		Exertion for Purposes of Personal Respect: Shabbat 81b
		Exertion in carrying a single heavy load, vs. many light-load trips: Shabbat 127a
	www.aishdas.org /webshas/shabbos/exertion.htm (555 words)

	Physical Activity for Everyone: Measuring Physical Activity Intensity: Perceived Exertion (Borg Rating of Perceived ...
		Although this is a subjective measure, a person's exertion rating may provide a fairly good estimate of the actual heart rate during physical activity* (Borg, 1998).
		Practitioners generally agree that perceived exertion ratings between 12 to 14 on the Borg Scale suggests that physical activity is being performed at a moderate level of intensity.
		Try to appraise your feeling of exertion as honestly as possible, without thinking about what the actual physical load is. Your own feeling of effort and exertion is important, not how it compares to other people's.
	www.cdc.gov /nccdphp/dnpa/physical/measuring/perceived_exertion.htm (753 words)

	Sudden Vigorous Exercise Can Trigger Heart Attack
		These exertion-related heart attacks occurred during or within an hour of vigorous exertion involving predominantly aerobic activity such as running and jogging (26 cases), isometric or heavy lifting (12 cases) and a mixture of aerobic and lifting activities (26 cases).
		According to the authors, the relative risk of myocardial infraction was 10 times greater during vigorous exertion than at other times, for all study participants.
		The researchers write that although their study has certain limitations, these results are consistent with other studies demonstrating that unusual exertion and exercise acutely increase the risk of cardiac events, and that such events are more common in inactive people.
	www.harthosp.org /articles/docs/np991110a.html (544 words)

	Borg's Perceived Exertion and Pain Scales - Human Kinetics
		His ratings of perceived exertion (RPE) scale is used worldwide by professionals in medicine, exercise physiology, psychology, cardiology, ergonomy, and sports.
		Borg’s Perceived Exertion and Pain Scales begins with an overview and history to introduce readers to the field of perceived exertion.
		His method for measuring perceived exertion is the main method used in the field, and his new scale, the Borg CR10 scale, is used for measuring both perceived exertion and pain, and other subjective magnitudes.
	www.humankinetics.com /products/showproduct.cfm?isbn=0880116234 (639 words)

	Rating of Perceived Exertion - RPE
		RPE is a subjective rating that the trainee assigns to the intensity of his/her exercise based on their perception of how hard the physical exertion was.
		If a person has a maximum strength on the bench press of 200 pounds and they lift 100 pounds 1 time then their RPE should be low.
		Now that you have a tool to rate the physical exertion of your workouts, you can use this to experiment to see what level of RPE you need make the best progress in your training.
	www.bodyresults.com /E2RPE.asp (934 words)

	Exertion UK (Site not responding. Last check: 2007-10-16)
		Exertion is web design company based in Exeter, Devon.
		We are a young team of innovative and determined people sharing a wealth of knowledge and experience.
		Exertion UK was founded by Christopher Prescott – a former Computer Science student at The University of Exeter.
	www.exertion-uk.com /about/index.php (147 words)

	Puget Sound Clean Air Agency - AQI Cautionary Statements
		People with respiratory disease, such as asthma, should avoid outdoor exertion; everyone else, especially the elderly and children, should limit prolonged outdoor exertion.
		Everyone should avoid any outdoor exertion; people with respiratory or heart disease, the elderly, and children should remain indoors.
		People with cardiovascular disease, such as angina, should limit heavy exertion and avoid sources of CO, such as heavy traffic; everyone else should limit heavy exertion.
	www.pscleanair.org /airq/aqihealth.shtml (318 words)

	International Council on Active Aging Home
		The perception of exertion is mainly felt as strain and fatigue in your muscles and breathlessness or aches in the chest.
		Try to appraise your feeling of exertion and fatigue as spontaneously and honestly as possible.
		It is your own feeling of effort and exertion that is important, not how it compares to other people’s.
	www.icaa.cc /Activeagingweek/Fitnessfacts/borgscale.htm (192 words)

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