Jump to content

Talk:Exertion

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia

Goals

[edit]

I will be contributing to this article! Although it is challenging to find a formal definition that doesn't require reference to numerous other physical topics, I think that exertion itself can be well described through brief description of the topics already referenced. I also plan to investigate exertion related to exercise physiology, probably primarily neuromuscular exertion and control. Zmattingly (talk) 12:45, 24 May 2018 (UTC)[reply]

Reference needed

[edit]

The article contains the following paragraph:

In physics exertion is use of energy against, or for, inertia as described by Isaac Newton's First Law of Motion. In mechanics it describes use of force against a body in direction of it's motion (see vector).

I am not aware of the word "exertion" having any formal meaning in physics (although I have not researched the history of physics; perhaps it was used in the past.) Can anyone provide a citation for the use of "exertion" in physics? Gerry Ashton 15:33, 31 May 2006 (UTC)[reply]

Improvements

[edit]

This article could use much more information. I have heard of this problem, and I didn't get to learn anything new when I read this article. There has to be new inoformation pertaining to symptoms, examples, and how this can be cured. --Annmohh (talk) 23:25, 28 September 2011 (UTC)[reply]

[edit]

Hello fellow Wikipedians,

I have just modified 2 external links on Exertion. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.


Cheers.—InternetArchiveBot (Report bug) 08:40, 25 January 2018 (UTC)[reply]


Wiki Education Foundation-supported course assignment

[edit]

This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): Zmattingly.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 21:01, 16 January 2022 (UTC)[reply]

Contributions

[edit]

I will be contributing to this page! IT is challenging to find a concrete definition of exertion, it is very intangible. I think that through discussion of its applications and mechanics it is possible to build an idea of exertion. I also have made some edits to the information that was already there, to better integrate it to what I am adding. Let me know if you have any feedback.


Exertion is the physical or perceived use of energy. Exertion traditionally connotes a strenuous or costly effort, resulting in generation of force, initiation of motion, or in the performance of work. It often relates to muscular activity and can be quantified, empirically and by measurable metabolic response.

Physical

In physics, exertion is the expenditure of energy against, or inductive of, inertia as described by Isaac Newton's third law of motion. In physics, force exerted equivocates work done.[1] The ability to do work can be either positive or negative depending on the direction of exertion relative to gravity. For example, a force exerted upwards, like lifting an object, creates positive work done on that object.[2]

Exertion is often results in force generated, a contributing dynamic of general motion. In mechanics it describes the use of force against a body in the direction of its motion (see vector).

Physiological

Exertion, physiologically, can be described by the initiation of exercise, or, intensive and exhaustive physical activity that causes cardiovascular stress or a sympathetic nervous response. This can be continuous or intermittent exertion.

Exertion requires, of the body, modified oxygen uptake, increased heart rate, and autonomic monitoring of blood lactate concentrations. Mediators of physical exertion include cardio respiratory and musculoskeletal strength, as well as metabolic capability.[3] This often correlates to an output of force followed by a refractory period of recovery. Exertion is limited by cumulative load and repetitive motions.

Muscular energy reserves, or stores for biomechanical exertion, stem from metabolic, immediate production of ATP and increased O2 consumption. Muscular exertion generated depends on the muscle length and the velocity at which it is able to shorten, or contract.[4]

Perceived exertion can be explained as subjective, perceived experience that mediates response to somatic sensations and mechanisms. A rating of perceived exertion, as measured by the RPE-scale, or Borg scale, is a quantitative measure of physical exertion.[5]

Zmattingly (talk) 19:14, 23 June 2018 (UTC)[reply]