3+ 4/2002 - Společnost pro pojivové tkáně

in every probands were measured body
height by helping of anthropometer and
body weight by tread electronicall scale.
Body Mass Index was calculated from both
these values.
RESULTS
Mean values and other accepted statistical
characteristics of body height, weight
and BMI of research group are referred in
table 1. Their comparisons with all-state
data of 20 – 25 years old Czech women,
which we have taken in our research during
the years 1987–88 (Hajniš et al. 1999),
exposed that the research group of university
students are in average about 1,5 cm
taller and approximately about 1,4 kg
lighter. This find is doubtless in connection
with the known reality, that the university
students in comparison with other populations
are regularly higher, but lighter.
Owing to we state contrary to our normal
population at the same age approximately
about 0,9 index units lower Body Mass
Index. The probands of research group are
therefore within the bounds of normosomy
but they are explicitly slimmer.
Tab. 2. The length of thoracolumbal spine in standing and sitting positions
94
LOCOMOTOR SYSTEM vol. 9, 2002, No. 3+4
We suppose the length of thoracolumbal
spine has the high dependence to stature
and the deep of anteroposterior spine
curves is in connection with body weight.
Calculated mean of the length of thoracolumbal
spine of the researched 18–25
years women in standing and sitting positions
gives the table 2. Of course, it means
that the greater average of length exists in
standing than in sitting position. The shortness
in sitting position can be connected
with the change of muscles tension of musculi
dorsi,with the diverse degree of load of
disci intervertebrales and with the different
biomechanical system of abdominal and
thoracical organs hinge. The average difference
of the length between the points Cervicale
and Lumbale in standing and sitting
positions is 15 mm and is high statistically
significant at the probability level of 99 %
(t-value = 44,01).
The placement of peak of both anteroposterior
curves of thoracolumbal spine
and of point x with regard to point C in
standing and sitting positions gives the
table 3. From this table is perceptible, that
the peak of thoracic kyphosis (point T) is
relatively more near to point C (this is to
the seventh neck vertebra) in standing than
X s s x V
Body height [cm] 168,10 6,38 0,63 3,79
Body weight [kg] 61,09 8,02 0,80 13,13
Body Mass Index 21,59 2,45 0,24 11,34
Tab. 1. Body height, weight and Body Mass Index of probands (18–25 years woman; n = 101)
X s s x V
C – Lu standing 444,76 23,90 2,40 5,37
(mm) sitting 429,82 24,40 2,40 5,67