• Length: 662 words (1.9 double-spaced pages)
  • Rating: Excellent
Open Document

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Text Preview

More ↓

Continue reading...

Open Document

Hand- Grip Dynamometer

     Hand-Grip dynamometer are used to measure the strength and endurance of the muscles in your forearm, and to a lesser extent your hand. Using a handgrip dynamometer will increase your performance at work, improve posture, decrease chances for injury, and prevent low back pain. Endurance is the ability of a muscle to work for long periods of time without extreme fatigue. It prevents unwanted fatigue from daily activities, sport and recreation. For the elderly person, good hand grip strength may prevent a fall down stairs or in bathtubs and may help people from dropping jars. It could help the elderly with opening jars as well.

     Three area’s of rationale are used to measure strength-anatomical, physiological, and biochemical. These are all interrelated. The first area Anatomical Rationale-Hand grip strength is mainly a function of the muscles in the forearm, and hand. Eight muscles serve as the prime movers and stabilizers in hand grip strength. Eleven other muscles assist in contraction of the hand.

     The second is physiological Rationale which has six categories. Six of the most common measurement terms in physiology are mass, force, work, velocity, power and energy.

     The third area is biochemical rationale exercise may be divided into three categories based upon the predominant metabolic pathway. The primary biochemical reaction for strength, or any muscle contraction is ATP ( Adenosine Triphosophate).

     The muscular strength is highly affected by the nervous system. Emotional and mental factors play important part in strength testing. If a subject is consistent with motivation strength variability should be minimized. In women a daily variation in strength range is between 2 and 12% and 5 to 9% in men.

     Instruments used to measure muscle strength are cable tensiometer, dymameter, free weights, barbells, isokinetics devices and load cells or elechromechanical devices. Strength is usually measured in units of force or torque. Kilogram (kg), and pounds (lb), is the force unit. The torque unit may be expressed as a foot-pounds (fl-lb) or Newton meters (nm).

     The procedures for handgrip strength testing are:

1.     The subject should be in the standing position.

2.     The subject’s head should be in the midposition (facing straight ahead).

3.     The grip size should be adjusted so that the middle finger’s midportion is approximatrely at a right angle.

4.     The subject’s forearm may be placed at any angle between 90 degrees and 180 degrees of the upper arm; the upper arm is in a vertical position.

5.     The subject’s wrist and forearm should be at the midprone position.

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

How to Cite this Page

MLA Citation:
"Hand-grip." 123HelpMe.com. 22 May 2018
Title Length Color Rating  
Essay on Hand Shake Styles and Importance - Have you ever had a really awkward handshake where you just did not get a good grip on their hand. A hand shake can tell you a lot about a person by their approach and how they handle the hand shake. Whether it’s just a causal handshake with someone you know or if it’s with the manager that is about to interview you, your handshake can make quite an impression. Some say a handshake is just an empty politeness and others say it is an essential action that helps each person learn more about one another....   [tags: Greeting, Body Language] 1218 words
(3.5 pages)
Strong Essays [preview]
Releasing The Governments Grip on Education Essay - Releasing The Governments Grip on Education Will the debates over education reform ever end. Can any system of education ever be formed to satisfy the conflicting desires of the people. The education of America’s youth is an important subject to most voters. Education holds a few spots in every election and has always been a crucial part of every candidate’s platform. The people of America have many sides to each of the numerous issues that surround education. Some of these issues include the content of the curriculum, discipline policies, safety of the children, over-crowded classrooms, zoning regulations, quality of teachers, and the inclusion or exclusion of religious teachings....   [tags: Papers] 744 words
(2.1 pages)
Strong Essays [preview]
The Masses: Medias Vice Grip On Our Identities Essay - As we sign up for accounts on Facebook or other media outlets, we are digging a bigger hole. The media’s influence has locked us into an impersonal world of social interaction. This impersonal world holds no real emotion that is embodied in us and that stems from us. Throughout the course of history, until the last ten years, our experiences have become trumped or overtaken by the medias vice grip. Once we decide to like a photo over Facebook or another social networking platform, we begin to embark on a journey filled with duplicative, pit-less emotion e.g.“ Oh Jenny loves her cat tiger.” “ I think I like her cat too and to express that emotion I will proceed to hit the like button.” The te...   [tags: Social Media, Social Activism] 2296 words
(6.6 pages)
Powerful Essays [preview]
hand tools Essay - Hand Tools and Devices Ergonomically oriented hand tool design: Maintain a straight wrist Maintain a straight wrist Bent Nose Pliers. Such tools permit grasping, cutting, or turning objects while the wrist remains in a relatively straight position. Hammer With Deviated Handle. The slightly bent handle maintains a straight wrist during the final impact position. Maintain a straight wrist Maintain a straight wrist Soldering Iron. The perpendicular bend of the head permits application of heat to a distal object while avoiding deviation of the wrist....   [tags: essays research papers] 739 words
(2.1 pages)
Strong Essays [preview]
Role of Technology in the Life of the Baseball Bat: A Hand to Hand Journey - It’s often said ‘the guy with the bigger stick always wins’, and it is safe to assume so in baseball ,seeing as the bat is the most vital aspect of the game since it embeds its sole purpose, to hit the ball. The excitement of baseball and what attracts fans the most is the ball- bat action. This relationship is established by the batter and the pitcher; their constant rivalry makes the game interesting as one tries to hit the ball, and the other tries to make him miss. The history of baseball is much like that of other sports; it originated from a group of people, soon it became popular and with time became a multi-million industry....   [tags: Sports ]
:: 2 Works Cited
1239 words
(3.5 pages)
Strong Essays [preview]
Cool Hand Luke: Failure to Communicate Essay example - Released in 1967, “Cool Hand Luke” continues to be one of the most popular movies in American history. (Belton, 2008) The movie starred famed actor Paul Newman and was based on the trials and tribulations occurring inside a Florida prison camp. One of the main reasons why Cool Hand Luke continues to be relevant today is due to its incisive observations regarding the criminal justice system. While the movie was released over forty years ago, the relevance of Cool Hand Luke continues today. This paper will provide a synopsis of the movie and character analysis of Cool Hand Luke; in addition, the paper will analyze the movie from the perspectives of someone unfamiliar with the criminal justice...   [tags: Paul Newman, criminal justice system]
:: 2 Works Cited
2794 words
(8 pages)
Powerful Essays [preview]
Essay on Dupuytren's Contracture: The Claw Hand Disease - A person looks at his hand; the palm facing up and forms his hand into a claw. He pays particular attention to his fingers and the feel of the tendons, ligaments, and muscles as he forms a claw. He imagines that this is happening to him over time. He has no control over it and cannot stop it. Unlike people with Dupuytren’s disease, he can straighten out his hands. I struggle with Dupuytren’s condition in both of my hands. In order to empathize with the struggles of a Dupuytren’s patient, people need to be informed about the disease....   [tags: tendons, claw hand, stretching]
:: 13 Works Cited
1390 words
(4 pages)
Strong Essays [preview]
An Evolving Relationship in The Circling Hand Essay - An Evolving Relationship in The Circling Hand An evolving mother-daughter relationship is the focus of Jamaica Kincaid s autobiographical The Circling Hand. Like the narrator, Kincaid grew up in Antigua as the only child her mother and carpenter father. Also like the narrator, Kincaid admits her mother kept everything she ever wore. This narrative is a coming of age story, in which this dynamic and unusual mother-daughter relationship plays an important role. Through the beginning bliss of childhood to the frustrating stage of adolescence, this unique relationship, in which the daughter is infatuated with her mother, seems to control the narrator s development as a free­thinking...   [tags: Circling Hand] 969 words
(2.8 pages)
Better Essays [preview]
Essay on An Analysis of On the Other Hand - An Analysis of "On the Other Hand" "On the Other Hand", what is on the other hand. Rachel Hadas tells about the living, the dead and shows the reader the other side of usual thoughts about the dead and living. She lists the faults of the living and the virtues of the dead, in order to explain her first statement, "it is no wonder why we love the dead". Yet, then turns everything around again in the last statement of this free verse poem. Rachel Hadas poem, "On the Other Hand" clearly depicts the many differences of the "brittle, easily wounded" living and the "patient, peaceful" dead....   [tags: On the Other Hand Essays] 641 words
(1.8 pages)
Strong Essays [preview]
The Left Hand of Darkness Essay - The Left Hand of Darkness    Although the author of The Left Hand of Darkness, Ursula K. Le Guin discussed in the introduction that this book is not extrapolative or a prediction of future, the plots in the book are extraporative to some extent.  Since the story takes place in the past, Ekumenical Year 1490-97, this book is different from other science fictions which the stories take place in the future.  However, the issues that the author deal with in the book are a prediction of the future; it can happen.  Guin also claimed that "if I could have said it non-metaphorically, I would not have written all these words, this novel."  Her metaphoric settings and wor...   [tags: Left Hand of Darkness Essays] 530 words
(1.5 pages)
Strong Essays [preview]

Related Searches

6.     The subject should exert maximally and quickly.

7.     The subject should perform two or three trials alternately with each hand, with at least 30’s between trials for the same hand.

The norms in Table 4.1 and 4.2 are based on a study made by 6,000 persons. In Table 4.2 it provides the strength / body weight ratios, the sum of the right and left grip strength scores is divided by the individuals body weight (kg/ kg body weight). The Canadian norms in Table 4.3 are based on data from 1981 Canada Fitness Survey.

In order to evaluate a good criteria to use: 0.90 To 0.99 high reliability, 0.80 to 0.89 good reliability, 0.70 to 0.79 fair reliability, and 0.69 and below poor reliability.

For comparable results, it is important that all persons use the dynamometer in the same way. While standing, hold the dynamometer at right angles to the floor, with the elbow held against the body and bent at 90 degrees. When squeezing the dynamometer do not turn or bend the head, or otherwise move the rest of the body. Squeeze quickly, giving maximum effort. In Part 1, rest at least one minute between same-hand trials – take turns with partner. Strength is defined as the force that can be achieved with maximum effort with the stronger arm for one repetition. It is generally abbreviated as “1 RM” (one repetition maximum). An older term sometimes used is maximum voluntary contraction (MVC).



Gene J

Laboratory manul

2nd edition

Brown and Benchmark Publishers

Return to 123HelpMe.com