Journal of science and medicine in sport,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
This
study
tested
whether
speed-controlled
exercise
prescriptions
result
in
greater
external
training
load
and
acute
cardiorespiratory
responses
at
the
end
of
compared
to
heart
rate-controlled
prescriptions,
despite
equivalent
intensity
start
exercise.
It
also
investigated
lead
improvements
fitness
after
8
weeks
training.
A
two-group,
randomized
block
design
with
repeated
testing
sessions.
Thirty-four
healthy,
inactive
adults
were
into
two
groups.
One
group
trained
a
constant
speed
set
midway
between
first
second
lactate
thresholds,
whereas
other
corresponding
rate.
Both
groups
performed
30
min
continuous
three
times
per
week
for
weeks.
Speed,
rate,
oxygen
consumption
measured
session
later
time
points
complementary
analysis.
Peak
treadmill
maximal
assessed
before
intervention.
At
session,
showed
higher
values
rate
(1.5
km/h),
(22
bpm),
(6.0
mL/kg/min)
(all
p
<
0.001).
Similarly,
adaptive
changes
group,
larger
increase
peak
(0.9
km/h,
0.001)
(1.2
mL/kg/min,
=
0.01).
These
findings
indicate
that
reference
method
influences
chronic
adaptations
adults.
Scandinavian Journal of Medicine and Science in Sports,
Journal Year:
2025,
Volume and Issue:
35(3)
Published: March 1, 2025
Physiological
resilience
has
recently
been
recognized
as
an
additional
factor
that
influences
endurance
exercise
performance.
It
thus
incorporated
into
a
modified,
contemporary
version
of
"the
Joyner
model"
which
acknowledges
start-line
values
V̇O2max,
efficiency
or
economy,
and
metabolic
thresholds
are
prone
to
deterioration,
often
with
appreciable
interindividual
variability,
during
prolonged
exercise.
The
physiological
underpinnings
elusive
sports
physiologists
presently
concerned
developing
practical
testing
protocols
reflect
athlete's
characteristics.
is
also
important
consider
why
some
athletes
more
resilient
than
others
whether
can
be
enhanced-and,
if
so,
training
programs
specific
sessions
might
stimulate
its
development.
While
data
scant,
the
available
evidence
suggests
consistency
accumulation
relatively
large
volumes
over
longer-term
(i.e.,
several
years)
promote
resilience.
inclusion
regular
within
program,
especially
when
these
include
bouts
high-intensity
at
race
pace
above
progressive
increase
in
intensity
face
fatigue,
represent
effective
means
enhancing
Finally,
resistance
training,
heavy
strength
plyometric
appears
have
positive
effects
on
Considerations
for
resilience,
alongside
other
established
determinants
performance,
will
likely
long-term
development
successful
athletes.
Scandinavian Journal of Medicine and Science in Sports,
Journal Year:
2024,
Volume and Issue:
34(5)
Published: April 26, 2024
Abstract
During
prolonged
running
at
moderate‐to‐high
intensity,
economy
(RE)
deteriorates
and
attainable
maximal
oxygen
consumption
(VO
2max
)
decreases.
Whether
these
changes
appear
similarly
in
trained
untrained
runners
exercising
the
same
relative
intensity
is
not
clear.
We
recruited
10
(TR)
active
adults
(AA),
compared
RE
VO
before
after
1
h
of
70%
.
Submaximal
2
increased
more
(
p
=
0.019)
AA
(0.20
±
0.13
L
min
−1
than
TR
(0.07
0.05
).
Attainable
decreased
(−0.21
0.15
,
0.002),
but
remained
unchanged
(−0.05
0.10
0.18).
Relative
(i.e.,
/attainable
),
0.001)
(8.3
4.4%)
(2.6
1.9%).
These
results
demonstrate
that
ability
to
resist
following
superior
versus
runners,
when
intensity.
European Journal of Applied Physiology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 14, 2025
Abstract
Physiological
resilience
or
durability
is
now
recognised
as
a
determinant
of
endurance
performance
such
road
cycling.
Reliable,
ecologically
valid
and
standardised
tests
in
laboratory-based
cycling
protocols
have
to
be
established
investigate
mechanisms
underpinning,
interventions
improving
durability.
This
review
aims
provide
an
overview
available
race
simulation
the
literature
examines
its
rigour
around
themes
that
influence
including
(i)
exercise
intensity
anchoring
(ii)
carbohydrate
intake
whilst
also
(iii)
inspecting
reliability
justification
developed
protocols.
Using
systematic
search
approach,
48
articles
were
identified
met
our
criteria
simulation.
Most
presented
limitations
recommended
test
durability,
not
appropriately
addressing
domains
by
%
peak
power
$$\dot{\text{V}}$$
V˙
O
2max
.
Ten
provided
data,
but
only
one
under
appropriate
conditions.
studies
sufficiently
controlled
nutrition
during
trials
days
leading
just
before
trials.
Thus,
there
paucity
combine
with
optimal
nutritional
support
mimic
true
demands
road-cycling
race.
lists
researchers
could
use
caution
select
protocol
for
future
experiments,
encourages
further
development
improved
protocols,
utilisation
virtual
software
applications.
Scandinavian Journal of Medicine and Science in Sports,
Journal Year:
2025,
Volume and Issue:
35(5)
Published: April 25, 2025
ABSTRACT
This
study
aimed
to
examine
the
key
performance
metrics
and
durability
differences
between
cyclists
finishing
in
top‐5
those
ranked
6th
30th
Five
Monuments
of
Cycling
(Milan‐San
Remo,
Tour
Flanders,
Paris‐Roubaix,
Liège‐Bastogne‐Liège,
Il
Lombardia).
Data
from
64
professional
male
were
analyzed.
Cyclists
categorized
into
finishers
(
n
=
14)
top‐6–30
50).
Race
data
extracted
.fit
files,
including
power
output
(PO),
mean
maximal
(MMP)
across
multiple
durations
(5
s,
30
1
min,
5
10
20
min),
decay
after
accumulated
workloads
(30,
40,
50,
60
kJ
kg
−1
).
Top‐5
exhibited
significantly
higher
MMP
for
5‐min
d
0.7;
p
0.02),
10‐min
0.8;
0.01),
20‐min
efforts
1.0;
0.01)
compared
finishers.
No
significant
found
shorter
>
0.05).
Power
analysis
revealed
that
experienced
greater
reductions
at
,
particularly
1.3;
<
1.2;
0.01).
observed
total
energy
expenditure
or
time
spent
zones
groups.
showed
durability,
with
less
Monuments.
These
findings
highlight
functional
(e.g.,
MMP,
decay)
associated
finishes,
though
physiological
mechanisms
remain
speculative.
extends
prior
research
by
focusing
on
elite
Medicine & Science in Sports & Exercise,
Journal Year:
2024,
Volume and Issue:
56(11), P. 2230 - 2240
Published: June 10, 2024
ABSTRACT
Introduction
Running
economy
(RE)
deteriorates
during
prolonged
running,
although
the
effect
of
measuring
energy
cost
(EC)
or
oxygen
(OC)
on
magnitude
these
changes
has
not
been
investigated.
Similarly,
it
is
unknown
if
runners’
performance
level
may
influence
deterioration
RE
running.
The
aims
this
study
were
to
compare
in
EC
and
OC
measurements
a
run
large
cohort
well-trained
male
runners,
between
runners
high-
low-performance
standard.
Methods
Forty-four
(maximal
uptake
(V̇O
2max
)
62.4
mL·kg
−1
·min
;
10-km
time:
35:50
±
4:40
mm:ss)
completed
an
incremental
test
determining
lactate
threshold
1
(LT1)
V̇O
,
separate
occasion,
90-min
at
LT1.
Respiratory
gases
collected
15-min
intervals.
Subsequently,
subgroups
(HP;
31:20
01:00
low-performing
(LP;
41:50
01:20
compared.
Results
was
only
fractionally
larger
when
expressed
as
than
(0.1%
greater
from
30–90
min;
P
<
0.001),
perhaps
due
small
change
respiratory
exchange
ratio
(−0.01)
study.
For
HP
group,
increases
lower
LP
after
90
min
both
(+2.3%
vs
+4.3%;
0.01)
(+2.4%
+4.5%;
0.01).
standardized
distances,
for
versus
LP,
example,
16.7
km
+
1.0
+3.2%
(
0.01),
+1.2
+3.4%
0.001).
Conclusions
dependent
athlete’s
level,
with
displaying
superior
durability.
use
had
fractional
durability,
gain
importance
shifts
substrate
metabolism.
Frontiers in Physiology,
Journal Year:
2024,
Volume and Issue:
15
Published: June 18, 2024
There
are
various
categorization
models
of
high-intensity
interval
training
(HIIT)
in
the
literature
that
need
to
be
more
consistent
definition,
terminology,
and
concept
completeness.
In
this
review,
we
present
a
goal-oriented
model
HIIT,
aiming
find
best
possible
consensus
among
defined
types
HIIT.
This
concludes
with
six
different
HIIT
derived
from
literature,
based
on
interaction
duration,
intensity
interval:recovery
ratio.
We
discuss
science
behind
shed
light
effects
aerobic,
anaerobic,
neuromuscular
systems
transfer
into
competition
performance.
highlight
research
gaps,
discrepancies
findings
not
yet
proved
know-how
lack
randomized
controlled
studies,
especially
well-trained
elite
athlete
cohorts.
Our
“toolbox”
approach
is
designed
guide
training.
It
intended
lay
groundwork
for
future
systematic
reviews
serves
as
foundation
meta-analyses.
Scandinavian Journal of Medicine and Science in Sports,
Journal Year:
2024,
Volume and Issue:
34(3)
Published: March 1, 2024
Abstract
Background
Prior
studies
investigated
selected
discrete
sagittal‐plane
outcomes
(e.g.,
peak
knee
flexion)
in
relation
to
running
economy,
hereby
discarding
the
potential
relevance
of
technique
parameters
during
noninvestigated
phases
gait
cycle
and
other
movement
planes.
Purpose
Investigate
which
components
distinguish
groups
runners
with
better
poorer
economy
higher
lower
weekly
distance
using
an
artificial
neural
network
(ANN)
approach
layer‐wise
propagation.
Methods
Forty‐one
participants
(22
males
19
females)
ran
at
2.78
m∙s
−1
while
three‐dimensional
kinematics
gas
exchange
data
were
collected.
Two
created
that
differed
or
training
distance.
The
kinematic
used
as
input
ANN
predict
group
allocations.
Layer‐wise
propagation
was
determine
for
classification.
Results
classified
correct
accuracies
up
62%
71%,
respectively.
Knee,
hip,
ankle
flexion
most
relevant
both
classifications.
Runners
showed
swing,
more
hip
early
stance,
extension
after
toe‐off.
less
trunk
rotation
swing.
Conclusion
accuracy
moderate
when
predicting
whether
had
better,
a
based
on
their
technique.
contributed
classification
may
nevertheless
inform
future
research
training.
International Journal of Sports Physiology and Performance,
Journal Year:
2024,
Volume and Issue:
19(8), P. 809 - 819
Published: June 13, 2024
Purpose
:
To
investigate
how
cycling
time-trial
(TT)
performance
changes
over
a
season,
both
in
“fresh”
state
and
“fatigued”
(durability).
Additionally,
the
aim
was
to
explore
whether
these
are
related
underlying
physiological
factors
such
as
gross
efficiency,
energy
expenditure
(EE),
substrate
oxidation
(fat
[FatOx]
carbohydrate
[CarbOx]).
Methods
Sixteen
male
semiprofessional
cyclists
visited
laboratory
on
3
occasions
during
season
(PRE,
START,
IN)
underwent
test
fresh
fatigued
states
(after
38.1
[4.9]
kJ/kg),
containing
submaximal
warm-up
for
measurement
of
EE,
FatOx,
CarbOx
maximal
TT
1
(TT1min)
10
minutes
(TT10min).
Results
were
compared
across
(fresh
vs
fatigued)
periods
IN).
The
average
power
output
(PO)
TT1min
decreased
(
P
<
.05)
from
all
observed
periods,
whereas
there
no
change
PO
TT10min.
Over
course
improved
more
with
state.
Furthermore,
while
EE
did
not
significantly
change,
an
increase
FatOx
decrease
toward
These
diminished
(IN),
indicating
greater
contribution
Conclusions
is
sensitive
fatigue
Also,
durability
improves
when
POs,
which
also
oxidation.