Anthropometry and physical examination; a book for practical use in connection with gymnastic work and physical education

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1896 Excerpt: ... own height. This introduces a new and important feature into graphic anthropometry, and one table becomes available for representing any individual within the limits of the tabulation. "It is a recognized law that the strength increases in proportion to the square of the height, whereas height increases in simple arithmetical ratio. In order to furnish a basis for a more just comparison two charts have been prepared upon the basis of height, including such heights as fall within the limits of 58 and 67 inches for women and 63 to 72 inches for men. Provision is made for a graphic percentage representation in the diagram occupying the lower half of the chart, upon which per cents may be written at any level from o to 250. To obtain the percentage relation of the person examined to the mean-average person of the same height, it is only necessary to divide the number found for each individual group of muscles by the number shown in the proper columns for the mean-average person of the given height. Having found the percentage in this manner, a dot is made with a pencil in the proper column, and at a level corresponding with the percentage shown by the quotient obtained. If the quotient is i, the dot will be made opposite, or in line with 100, and the meaning is that the strength of the group of muscles tested is equal to that of the mean-average person of the same height. If the amount obtained by dividing the number found by the number representing the strength of the same group of muscles in the average person of the same height is less than 1, as.50 for example, this represents that the strength of the group of muscles examined is only one-half, or 50 per cent, that of the meanaverage person of the same height. A dot is accordingly located opposite to,...