Download Development of flexibility through streching

Development of flexibility
streching-statical method
through
streching-balistic
method
versus
Ortanescu Corneliu, Ortanescu Dorina, Rusu Ligia
University of Craiova, Romania
Introduction
Flexibility, as a parameter of the amplitude of the movement and also of the capacity of the ensemble muscletendon for stretching itself, is one of the components with a very high level of interest for the development of
the skill. The present studies show it like a complex factor of the movement, less studied because of the
difficulty in measure procedures that are not complete and not so well elaborated. From the guiding marks that
we are using to appreciate the value of flexibility we mention: the joint’s structure, the soft tissues that are
around the joint, the capacity of muscle contraction and relaxation, temperature, age, sex, the build type, the
level of practice. The working techniques for improving the flexibility are based on practice through facilitating
the muscle propio-perception, practice through ballistics and statically stretching.
Method
We have organized a pedagogical experiment with 64 students aged 11-12 years old. They were divided in 3
groups. The groups attended a probation of 48 lessons within the medium time of 20 minutes, for the mobility
of the shoulder, of the spinal column and of the coxo-femural joint in sagital plane, using for the first group
statically exercises of muscle stretching, kept for 30-40 sec, followed by brakes of 20-30 sec, for the second
group we used ballistic exercises of balancing and extension types, free exercises with carrying object or
through facilitated methods, in series of 15 rehear salts with breaks of 30-40 sec; the third group worked
series of ballistic stretching exercises combined with statically stretching exercises whose number have been
diminished at 10-20 sec.
Shoulder
Movement
Abduct
Anteducent
Retroducent
a
Movement
Passive
Extension
56
51
54
Flexion
172
147
156
Group I
Group II
Group III
n
t e
d
u
I
p a s
I I
a c t
c
Spinal column
62
58
61
r e
Active
Extension
34
36
35
Flexion
96
122
119
I
a
t rI IoI
c
p
t
a
63
d
64
b
62
a
63
0
60
65
0
III
137
185
63
185
0
2
187
0
4
180
0
6
Active
II
132
180
62
I
130
178
60
182
0
8
III
139
187
64
178
0
190
0
1
137
0
2
139
0
4
1
132
0
6
1
140
190
65
137
0
8
1
130
0
1
140
2
Passive
II
137
182
63
I I
p a s
I I I
a c t
s
Spinal column
54
57
56
2 0 0
1 5 0
1 0 0
5 0
0
u m
p a s
a b d
u m
p a s
a n t
u m
p a s
r e tr o
u m
a c t
a b d
u m
a c t
a n te d u c
u m
a c t
r e tr o
s o ld fle x
p a s
s o ld e x t
p a s
s o ld fle x
a c t
s o ld
e x te n a c t
c o l a n t
p a s
G
r .I
G
r .III
G
r .II
c o l a n t
a c t
Discussion/Conclusion
The registered data emphasizes that the first group realizes the greatest values for passive and the lowest
values for active movements with a great difference of amplitude. The second group obtains lower values at
passive movements and slightly raised at active movements with a low difference of amplitude. The last group
registers raised values at passive movements with an insignificant difference compared to first group as well
as at active movements with an insignificant difference on group two. The difference of amplitude is
significant, so we may affirm that regarding the quality the development of flexibility without exact adressability
is realized very well through the combination of both ballistic and static methods. Depending on the
development parameters of motor gesture and the level of capacity of realize a maximum of neuro-muscle
control to optimize the technical precision of the movement. We notice a necessity to orientate the training
comparing to the optimal values of amplitude necessary to realize an appropriate drawing for the correct
execution technique. So, to accomplish large amplitude for passive movements we must use statically
exercises of study. High values of amplitude for active movements are accomplished by stretching-ballistic. No
method must be absolutist, due to their different methodical orientations reported to the proposed propose.
The harmony between the capacity of contraction and relaxation leads to a change of the system of neuromuscle control by alternate systems of working. The combination of those two gives a higher value of
amplitude both in passive and active movements but without achieving the maximum they achieve separately.
References
Michel Pradet, La préparation phisique, 1996