• We are sorry, but NCBI web applications do not support your browser and may not function properly. More information
Logo of archdischArchives of Disease in ChildhoodVisit this articleSubmit a manuscriptReceive email alertsContact usBMJ
Arch Dis Child. Dec 1976; 51(12): 957–963.
PMCID: PMC1546162

Measurements of muscle strength and performance in children with normal and diseased muscle.

Abstract

A study has been made of two simple means of measuring muscle power in children with normal and diseased muscle. In one the length of time that the leg and the head could be held at 45 degrees above the horizontal was measured with the child supine. In the second, measurements were made of the isometric strength of six muscle groups with the newly developed Hammersmith Myometer. In the timed performance tests only 5 (8%) of a group of 61 children known to have muscle disease achieved the minimum expected values for their ages. Myometer readings of the isometric power of the children with muscle disease also have values which were below those of a comparable group of normal children. The reproducibility of muscle strength measurements in young children has been shown to be good, whereas the timed performance tests, though able to differentiate normal children from children with muscle disease, did not show sufficient reporducibility for this test to be recommended for sequential measurements.

Full text

Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (996K), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References.

Images in this article

Click on the image to see a larger version.

Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • ASMUSSEN E, HEEBOLL-NIELSEN K. Physical performance and growth in children; influence of sex, age and intelligence. J Appl Physiol. 1956 Jan;8(4):371–380. [PubMed]
  • Bäcklund L, Nordgren L. A new method for testing isometric muscle strength under standardized conditions. Scand J Clin Lab Invest. 1968;21(1):33–41. [PubMed]
  • BEASLEY WC. Influence of method on estimates of normal knee extensor force among normal and postpolio children. Phys Ther Rev. 1956 Jan;36(1):21–41. [PubMed]
  • DARCUS HD. A strain-gauge dynamometer for measuring the strength of muscle contraction and for re-educating muscles. Ann Phys Med. 1953 Jan;1(5):163–176. [PubMed]
  • Edwards RH, McDonnell M. Hand-held dynamometer for evaluating voluntary-muscle function. Lancet. 1974 Sep 28;2(7883):757–758. [PubMed]
  • ELKINS EC, LEDEN UM, WAKIM KG. Objective recording of the strength of normal muscles. Arch Phys Med Rehabil. 1951 Oct;32(10):639–647. [PubMed]
  • Haffajee D, Moritz U, Svantesson G. Isometric knee extension strength as a function of joint angle, muscle length and motor unit activity. Acta Orthop Scand. 1972;43(2):138–147. [PubMed]
  • Haxton HA. Absolute muscle force in the ankle flexors of man. J Physiol. 1944 Dec 15;103(3):267–273. [PMC free article] [PubMed]
  • Hugh-Jones P. The effect of limb position in seated subjects on their ability to utilize the maximum contractile force of the limb muscles. J Physiol. 1947 Jan 15;105(4):332–344. [PMC free article] [PubMed]
  • WAKIM KG, GERSTEN JW, et al. Objective recording of muscle strength. Arch Phys Med Rehabil. 1950 Feb;31(2):90–100. [PubMed]

Articles from Archives of Disease in Childhood are provided here courtesy of BMJ Group

Formats:

Related citations in PubMed

See reviews...See all...

Cited by other articles in PMC

See all...

Links

  • PubMed
    PubMed
    PubMed citations for these articles

Recent Activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...