| Summary: | 碩士 === 國立師範大學 === 體育學系 === 83 === The purpose of this study was to utilize a mathematical
model to establish children's segmental parameters. There were
105 children aged from four to six years old voluntarily
participated this study. The segmental parameters were
included the volume of every body segment, the percentage of
every segment's volume, the percentage of every segment's
location of the center of mass, and the height of body's center
of mass. The reation board technique was used as a criterion
to validate the estimation of mass center of gravity for mathe-
matical model. After data calculation, the results were reach-
ed followings:
1. The Volume of every body segment (unit:liter)
In 14 segment's model : the data of head、trunk、upper arm、
forearm、hand、thigh、leg、foot were 3.155、8.389、0.488、
0.263、0.196、1.815、0.741、0.272 repectively.
In 15 setment's model : the data of head、upper trunk、lower
trunk、upper arm、forearm、hand、thigh、leg、foot were
3.155、6.227、1.835、0.488、0.263、0.196、1.815、0.741、
0.272 repectively.
2. The percentage of every segment's volume (unit: %)
In 14 segment's model : the data of head、trunk、upper arm、
forearm、hand、thigh、leg、foot were 0.167、0.439、0.026、
0.014、0.010、0.094、0.039、0.014 repectively.
In 15 setment's model : the data of head、upper trunk、lower
trunk、upper arm、forearm、hand、thigh、leg、foot were
0.167、0.332、0.098、0.026、0.014、0.010、0.094、0.039、
0.014 repectively.
3. The percentage of every segment's center of mass (unit: %)
In 14 segment's model : the data of head、trunk、upper arm、
forearm、hand、thigh、leg、foot were 0.500、0.503、0.475、
0.448、0.500、0.458、0.438、0.667 repectively.
In 15 setment's model : the data of head、upper trunk、lower
trunk、upper arm、forearm、hand、thigh、leg、foot were
0.500、0.501、0.502、0.475、0.448、0.500、0.458、0.438、
0.667 repectively.
4. The center of gravity for supine position was 63.98 cm based
on reaction board technique, and were 65.28 cm (14 segments)
and 66.38 cm (15 segments) obtained from mathematical model.
The standard error of estimate between reaction board tech-
nique and mathematic a method was 4.63 cm for 14 segmental,
and 4.81 cm for 15 segmental.
Finally, this study was concluded that the result of this
study could be used for domesticly related study research.
|
|---|
