International Journal of Sports Physiology and Performance,
Journal Year:
2023,
Volume and Issue:
18(11), P. 1275 - 1282
Published: Aug. 23, 2023
Laboratory-based
indicators
are
commonly
used
for
performance
assessment
in
young
cyclists.
However,
evidence
supporting
the
use
of
these
mostly
comes
from
cross-sectional
research,
and
their
validity
as
predictors
potential
future
remains
unclear.
We
aimed
to
assess
role
laboratory
variables
predicting
transition
U23
(under
23
y)
professional
category
cyclists.Sixty-five
male
road
cyclists
(19.6
[1.5]
were
studied.
Endurance
(maximal
graded
test
simulated
8-min
time
trial
[TT]),
muscle
strength/power
(squat,
lunge,
hip
thrust),
body
composition
(assessed
with
dual-energy
X-ray
absorptiometry)
determined.
Participants
subsequently
followed
categorized
attending
whether
they
had
transitioned
("Pro")
or
not
("Non-Pro")
during
study
period.The
median
follow-up
period
was
3
years.
Pro
(n
=
16)
showed
significantly
higher
values
than
Non-Pro
riders
49)
ventilatory
thresholds,
peak
power
output,
oxygen
uptake,
TT
(all
P
<
.05,
effect
size
>
0.69)
lower
levels
fat
mass
bone
mineral
content/density
(P
0.63).
no
significant
differences
found
49).
The
most
accurate
individual
predictor
(overall
predictive
value
76%
a
cutoff
5.6
W·kg-1).
some
that
did
reach
statistical
significance
univariate
analyses
contributed
multivariate
model
(R2
.79,
overall
94%).Although
different
"classic"
laboratory-based
endurance
can
predict
reaching
cyclists,
practical
indicator
such
8-minute
highest
prediction
accuracy.
Journal of the International Society of Sports Nutrition,
Journal Year:
2024,
Volume and Issue:
21(1)
Published: April 12, 2024
Background
Growing
evidence
supports
the
ergogenic
effects
of
creatine
supplementation
on
muscle
power/strength,
but
its
endurance
performance
remain
unclear.
We
assessed
high-dose
short-term
in
professional
cyclists
during
a
training
camp.
Journal of Trace Elements in Medicine and Biology,
Journal Year:
2024,
Volume and Issue:
84, P. 127470 - 127470
Published: May 11, 2024
Nutritional
strategies
with
iron
supplementation
have
been
shown
to
be
effective
in
preventing
the
decline
of
blood
biochemical
parameters
and
sports
performance.
The
aim
study
was
describe
metabolism
association
HFE
AMPD1
polymorphisms
a
Union
Cycliste
Internationale
(UCI)
World
Tour
cycling
team
evaluate
performance
during
whole
season
METHODS:
Twenty-eight
professional
men
cyclists
took
part
this
longitudinal
observational
pilot
study.
c.34
C>T
(rs17602729)
c.187
C>G
(rs1799945)
were
genotyped
using
Single
Nucleotide
Primer
Extension
(SNPE).
All
oral
throughout
season.
Four
complete
analyses
carried
out
corresponding
UCI
controls
January
(1st),
April
(2nd),
June
(3rd)
October
(4th).
Data
on
participation
three-week
Grand
Tours,
kms
competition
wins
analyzed.
Journal of Sports Science and Medicine,
Journal Year:
2024,
Volume and Issue:
unknown, P. 863 - 871
Published: Dec. 1, 2024
This
study
compared
inter-individual
variability
in
the
adaptive
responses
of
cardiorespiratory
fitness,
anaerobic
power,
and
motor
abilities
male
volleyball
players
to
high-intensity
interval
training
(HIIT)
prescribed
as
repetitive
drop
jumps
(interval
jumping)
running-based
intervals
running).
Twenty-four
collegiate
were
equally
randomized
two
groups
executing
11
minutes
running
or
jumping
during
which
they
ran
repeated
drop-jumps
for
15
seconds,
alternating
with
seconds
passive
recovery.
Before
after
6-week
period,
aerobic
cardiac
function,
power
evaluated
using
a
graded
exercise
test,
impedance
cardiography,
lower-body
Wingate
respectively.
Additionally,
linear
speed,
agility,
tests
determined
abilities.
Both
interventions
significantly
enhanced
maximum
oxygen
uptake
(V̇O2max),
velocity
associated
V̇O2max,
first
second
ventilatory
thresholds
(VT1
&
VT2),
maximal
output
(Q̇max),
stroke
volume
(SVmax),
peak
average
output,
vertical
jump,
change
direction,
sprint
speed.
Interval
group
demonstrated
greater
improvement
squat
jump
(p
=
0.001;
95%
CI:
2.51-5.42)
countermovement
2.11-4.61)
group.
Conversely,
elicited
enhancement
speed
0.002;
2.53-5.71)
than
Examining
individual
residual
revealed
that
induced
more
homogenized
adaptations
across
individuals
VT1
0.04;
0.03-1.33),
Q̇max
0.03;
0.04-1.64),
SVmax
0.02-1.75),
0.01;
0.72-1.95)
contrast
jumping.
However,
uniformity
response
surpassed
0.02;
0.08-1.32).
Although
both
modalities
effectively
improved
mentioned
variables
concurrently,
tailoring
HIIT
intervention
reference
intensity
modality
specific
each
quality
may
enhance
measured
quality.
International Journal of Sports Physiology and Performance,
Journal Year:
2023,
Volume and Issue:
18(8), P. 874 - 877
Published: May 27, 2023
The
purpose
of
the
current
investigation
was
to
retrospectively
assess
possible
differences
in
physiological
performance
characteristics
between
junior
cyclists
signing
a
contract
with
an
under-23
(U23)
development
team
versus
those
failing
sign
such
contract.Twenty-five
male
(age:
18.1
[0.7]
y,
stature:
181.9
[6.0]
cm,
body
mass:
69.1
[7.9]
kg,
peak
oxygen
uptake:
71.3
[6.2]
mL·min-1·kg-1)
were
assigned
this
investigation.
Between
September
and
October
last
year
category,
each
cyclist
performed
ramp
incremental
exercise
test
determine
certain
characteristics.
Subsequently,
participants
divided
2
groups:
(1)
U23
(JUNIORU23)
(2)
(JUNIORNON-U23).
Unpaired
t
tests
used
between-groups
level
statistical
significance
set
at
P
<
.05
two
tailed.No
significant
submaximal
(ie,
gas
exchange
threshold,
respiratory
compensation
point)
maximal
work
rate,
uptake)
expressed
absolute
values
L·min-1,
W)
observed
(P
>
.05).
However,
when
relative
cyclists'
weights
.05).The
showed
that
stepping
up
might
be
differentiated
from
not
based
on
characteristics,
which
inform
practitioners
and/or
federations
working
young
during
long-term
athletic
process.
International Journal of Sports Physiology and Performance,
Journal Year:
2023,
Volume and Issue:
18(11), P. 1275 - 1282
Published: Aug. 23, 2023
Laboratory-based
indicators
are
commonly
used
for
performance
assessment
in
young
cyclists.
However,
evidence
supporting
the
use
of
these
mostly
comes
from
cross-sectional
research,
and
their
validity
as
predictors
potential
future
remains
unclear.
We
aimed
to
assess
role
laboratory
variables
predicting
transition
U23
(under
23
y)
professional
category
cyclists.Sixty-five
male
road
cyclists
(19.6
[1.5]
were
studied.
Endurance
(maximal
graded
test
simulated
8-min
time
trial
[TT]),
muscle
strength/power
(squat,
lunge,
hip
thrust),
body
composition
(assessed
with
dual-energy
X-ray
absorptiometry)
determined.
Participants
subsequently
followed
categorized
attending
whether
they
had
transitioned
("Pro")
or
not
("Non-Pro")
during
study
period.The
median
follow-up
period
was
3
years.
Pro
(n
=
16)
showed
significantly
higher
values
than
Non-Pro
riders
49)
ventilatory
thresholds,
peak
power
output,
oxygen
uptake,
TT
(all
P
<
.05,
effect
size
>
0.69)
lower
levels
fat
mass
bone
mineral
content/density
(P
0.63).
no
significant
differences
found
49).
The
most
accurate
individual
predictor
(overall
predictive
value
76%
a
cutoff
5.6
W·kg-1).
some
that
did
reach
statistical
significance
univariate
analyses
contributed
multivariate
model
(R2
.79,
overall
94%).Although
different
"classic"
laboratory-based
endurance
can
predict
reaching
cyclists,
practical
indicator
such
8-minute
highest
prediction
accuracy.
