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J Strength Cond Res. 2007 Nov;21(4):1072-6.
Effect
of
whole
body
vibration
training
on
lower
limb
performance
in
selected
high-
level ballet students.
Annino G, Padua E, Castagna C, Di Salvo V, Minichella S, Tsarpela O, Manzi V, D'Ottavio S.
School of Sport and Exercise Sciences, Faculty of Medicine and Surgery, Tor Vergata University, Rome, Italy. g_annino@hotmail.com
The
aim
of
this
study
was
to
examine
the
effects
of
8
weeks
of
whole
body
vibration
(WBV)
training
on
vertical
jump
ability
(CMJ)
and
knee-extensor
performance
at
selected
external
loads
(50,
70,
and
100
kg;
leg-press
exercise)
in
elite
ballerinas.
Twenty-two
(age,
21.25
+/-
1.5
years)
full-time
ballerinas
were
assigned
randomly
to
the
experimental
(E,
n
=
11)
and
control
(C,
n
=
11)
groups.
The
experimental
group
was
submitted
to
WBV
training
3
times
per
week
before
ballet
practice.
During
the
training
period,
the
E
and
C
groups
undertook
the
same
amount
of
ballet
practice.
Posttraining
CMJ
performance
significantly
increased
in
E
group
(6.3
+/-
3.8%,
p
<
0.001).
Furthermore,
E
group
showed
significant
(p
<
0.05-0.001)
posttraining
average
leg-press
power
and
velocity
improvements
at
all
the
external
loads
considered.
Consequently,
the
force-velocity
and
power-velocity
relationship
shifted
to the right after WBV training in the E group.
The
results
of
the
present
study
show
that
WBV
training
is
an
effective
short-term
training
methodology
for
inducing improvements in knee-extensor explosiveness in elite ballerinas.