International Journal of Environmental Research and Public Health,
Journal Year:
2024,
Volume and Issue:
22(1), P. 19 - 19
Published: Dec. 28, 2024
We
have
examined
the
impact
of
CrossFit®
workout
sessions
on
physical
fitness,
comparing
obtained
outcomes
with
recommendations
American
College
Sports
Medicine.
In
addition,
we
provide
suggestions
to
improve
training
monitoring,
as
well
practical
applications
for
researchers,
coaches
and
practitioners.
imposes
high
cardiorespiratory
metabolic
demands,
promoting
improvements
in
circulatory
capacity,
oxidative
metabolism
muscular
endurance.
Sustained
elevations
heart
rate
contribute
cardiovascular
conditioning,
while
a
post-exercise
hypotensive
effect
may
help
reduce
risks.
Structured
programs
led
maximal
strength
endurance,
substantial
increases
squat
performance
observed
both
untrained
recreationally
active
individuals.
improves
mental
health
through
its
motivating
community.
However,
increased
creatine
kinase
levels
reduced
countermovement
jump
reveal
that
muscle
damage
neuromuscular
fatigue
can
persist
up
48
h.
Balancing
these
intense
adequate
recovery
is
crucial,
improper
management
lead
overtraining
compromise
fitness
gains.
Future
research
should
explore
long-term
adaptations,
differences
gains
between
males
females
application
real-time
biomarker
artificial
intelligence
technologies
efficiency
safety.
Machine
learning
algorithms
could
further
personalize
feedback,
adapting
each
individual’s
biomechanics
physiological
responses
over
time.
Sensors,
Journal Year:
2024,
Volume and Issue:
24(2), P. 513 - 513
Published: Jan. 14, 2024
Our
purpose
was
to
characterize
the
oxygen
uptake
kinetics
(VO2),
energy
systems
contributions
and
total
expenditure
during
a
CrossFit®
benchmark
workout
performed
in
extreme
intensity
domain.
Fourteen
highly
trained
male
CrossFitters,
aged
28.3
±
5.4
years,
with
height
177.8
9.4
cm,
body
mass
87.9
10.5
kg
5.6
1.8
years
of
training
experience,
Isabel
at
maximal
exertion.
Cardiorespiratory
variables
were
measured
baseline,
exercise
recovery
period,
blood
lactate
glucose
concentrations,
including
ratings
perceived
exertion,
pre-
post-workout.
The
117
10
s
duration
VO2
peak
47.2
4.7
mL·kg−1·min−1,
primary
component
amplitude
42.0
6.0
time
delay
4.3
2.2
constant
14.2
s.
accumulated
(0.6
0.1
vs.
4.8
1.0
L·min−1)
value
post-workout
increased
substantially
when
compared
baseline.
Oxidative
phosphorylation
(40%),
glycolytic
(45%)
phosphagen
(15%)
pathways
contributed
245
25
kJ
expenditure.
Despite
short
~2
min
workout,
oxygen-dependent
oxygen-independent
metabolism
metabolic
release
similar.
requires
effort
pattern
physiological
demands
identifies
this
as
intensive
effective
for
developing
fitness
conditioning
sports.
Applied Sciences,
Journal Year:
2025,
Volume and Issue:
15(5), P. 2722 - 2722
Published: March 4, 2025
Background:
the
validity
and
reliability
of
front
plank
test
(FPT)
have
been
studied
in
young
adults
but
not
aged
34
to
60
years.
The
aim
this
study
was
analyze
criterion-related
for
evaluating
trunk
musculature
according
sex
age
groups.
Methods:
a
repeated
measures
design
used
FPT.
A
total
84
18–62
years
performed
muscular
force
tests
Criterion-related
assessed
using
ANOVA.
Reliability
examined
by
ICC,
error
measurements,
Bland–Altman
analysis
across
Results:
significant
differences
activation
rectus
abdominis
external
oblique
muscles
were
found
compared
with
erector
spinae
multifidus
(p
<
0.001).
No
correlations
between
FPT
time
physical
activity
or
rate
perceived
exertion
at
end
>
0.05).
Low
moderate
body
fat
percentage,
mass
oblique,
regardless
groups
Extremely
high
(ICC
0.98),
low
measurements
(RMSE
=
11.93–18.73;
%CV
4.91–6.33;
SEE
11.45–16.84).
MDC90
values
indicated
no
real
change
T1
T2.
Conclusion:
is
valid
reliable
assessing
International Journal of Sports Physiology and Performance,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 6
Published: Jan. 1, 2025
Purpose:
We
evaluated
the
technical
and
energetical
impact
of
using
Randall
foils
versus
simple
Big
blades
during
a
maximum
rowing
effort
in
field
conditions.
Methods:
Fourteen
experienced
rowers
(12
male
2
female)
26
(9)
25
years
age,
179.8
(4.3)
175.0
(2.8)
cm
height,
74.2
(4.8)
65.5
(6.2)
kg
body
mass
(for
males
females,
respectively)
performed
maximal
500-m
on-water
bouts
(1
each
randomized
order).
Performance
physiological
variables
were
continuously
measured
along
efforts,
with
latter
being
also
recorded
baseline
recovery
periods.
Results:
Rowing
time
was
shorter
when
compared
(107.59
[5.53]
vs
108.96
[5.44]
s),
while
cycle
rate
(39.73
[2.56]
39.71
[2.24]
cycle·min
−1
),
peak
oxygen
uptake
(63.47
[9.96]
62.68
[9.65]
mL·kg
·min
mean
(4.15
[0.77]
4.12
[0.78]
L·min
respiratory
frequency
(62.44
[9.22]
62.17
[11.22]
beats·min
heart
(178
[11]
180
[9]
],
blood
lactate
concentration
(14.26
[3.52]
13.76
[4.02]
mmol
·
L
rating
perceived
(17
[1.43]
17
[1])
similar
both
experimental
Furthermore,
it
observed
that
aerobic
pathway
represented
∼50%
total
energy
spent
sprint
independently
used.
Conclusions:
Data
suggest
use
enhances
performance
without
compromising
rowers’
mechanical
metabolic
functions.
Strength and conditioning journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 9, 2025
ABSTRACT
Hybrid
fitness
competitions
such
as
HYROX
have
rapidly
gained
popularity,
blending
aerobic
endurance
running
with
a
variety
of
high-intensity
resistance-
and
ergometer-based
stations
in
globally
standardized
format.
The
sport's
unique
structure,
comprising
eight
1-kilometer
runs
interspersed
diverse
workload
stations,
presents
distinct
physiologic,
biomechanical,
technical
demands.
This
review
synthesizes
existing
research
on
hybrid
events
to
identify
the
key
determinants
performance,
emphasizing
capacity,
anaerobic
power,
local
muscular
endurance,
maximal
strength.
system
is
foundational,
enabling
recovery
between
efforts
sustaining
performance
during
event's
prolonged
duration.
Conversely,
capacity
critical
for
executing
demanded
by
each
station.
Local
supports
repeated
submaximal
contractions,
while
strength
power
underpin
movements
sled
pushes
economy.
Technical
proficiency
injury
prevention
strategies
are
also
discussed,
alongside
targeted
programming
recommendations,
including
interval
training,
circuit
blood
flow
restriction
methods.
Despite
its
growing
limited
sport-specific
exists,
necessitating
further
investigation
refine
training
strategies.
provides
comprehensive
framework
athletes
coaches
optimize
preparation
HYROX,
contributing
broader
understanding
competitions.
Applied Sciences,
Journal Year:
2024,
Volume and Issue:
14(16), P. 6895 - 6895
Published: Aug. 6, 2024
A
cross-sectional
study
was
conducted
to
biomechanically
characterize
Isabel’s
workout
(30
snatch
repetitions
with
61
kg
fixed
weight),
focusing
on
eventual
changes
in
knee,
hip
and
shoulder
angles.
three-dimensional
markerless
motion
capture
system
used
collect
data
from
11
highly
trained
male
crossfitters
along
the
Isabel
performed
at
maximal
effort.
The
routine
analyzed
globally
initial,
middle
final
phases
(10,
20
30
repetitions,
respectively).
Lift
total
time
increased
(1.51
±
0.18
vs.
1.97
0.20
s)
lift
velocity
(2.64
0.12
2.32
0.13
m/s)
power
(15.58
2.34
13.80
2.49
W/kg)
decreased
initial
phases,
while
until
bar
crossed
(34.20
4.00
27.50
5.10
39.70
16.80
30.90
13.90%)
workout.
In
addition,
a
decrease
flexion
observed
during
last
two
when
crosses
knee
(62.62
24.80
53.60
19.99°).
Data
evidence
profile
change
throughout
workout,
without
compromising
other
joints.
Sensors,
Journal Year:
2024,
Volume and Issue:
24(17), P. 5686 - 5686
Published: Aug. 31, 2024
We
aimed
to
conduct
a
biophysical
comparison
of
angular
(Biorower)
and
linear
(Concept2)
rowing
ergometers
across
wide
spectrum
exercise
intensities.
Sixteen
(eleven
male)
skilled
rowers,
aged
29.8
±
8.6
23.6
1.5
years,
with
international
competitive
experience,
performed
7
×
3
min
bouts
30
W
increments
60
s
intervals,
plus
1
all-out
on
both
machines
48
h
in
between.
The
ventilatory
kinematical
variables
were
measured
breath-by-breath
using
telemetric
portable
gas
analyzer
determined
full-body
markerless
system,
respectively.
Similar
values
oxygen
uptake
observed
between
all
intensity
domains
(e.g.,
60.36
8.40
vs.
58.14
7.55
mL/min/kg
for
the
Biorower
Concept2
at
severe
intensity).
rate
was
higher
heavy
intensities
(27.88
3.22
25.69
1.99
30.63
3.18
28.94
2.29).
Other
differences
kinematics
domains,
particularly
thorax
angle
finish
19.44
4.49
27.51
7.59°
compared
Concep2
intensity),
likely
due
closer
alignment
an
on-water
technique.
overall
perceived
effort
lower
when
(14.38
1.76
15.88
1.88).
Rowers
presented
similar
cardiorespiratory
function
ergometers,
while
important
biomechanical
observed,
possibly
Biorower’s
European Journal of Translational Myology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 23, 2024
There
has
been
an
increasing
interest
among
CrossFit®
coaches
and
practitioners
in
identifying
indicators
of
sport
performance.
This
study
aimed
to
examine
the
correlation
between
anthropometric
measures,
cardiorespiratory
capacity,
power,
local
muscle
endurance,
total
athleticism
score,
with
performance
Open
2021.
Fourteen
male
volunteers
(aged
30.3
±
5.8
years)
participated
underwent
a
series
tests
on
separate
weeks.
These
included
assessments
body
fat
percentage
(subcutaneous
adipose
thickness
measured
at
seven
sites),
maximal
oxygen
consumption
(2
km
test
rowing
ergometer),
power
(one
repetition
maximum
clean),
endurance
(Tibana
test,
which
conclusion
four
distinct
rounds
work).
results
were
used
calculate
score
athleticism,
was
then
compared
participants
during
The
athletes
presented
average
(8.6
2.0%),
(53.3
2.4
mL.
(kg.min)-1),
2km
row
time
(07:00
00:21
mm:ss),
1-Repetition
clean
(125.2
21.2
kg)
Tibana
(281.0
35.9
repetitions).
Interestingly,
top
five
highest
scores
also
achieved
z-scores
Conversely,
lowest
TSA
had
Open.
Moreover,
almost
perfect
(r
=
0.91;
p<0.01)
found
may
be
single
measure
holistic
indication
level
CrossFit®.
Furthermore,
can
potentially
apply
this
useful
tool
for
monitoring
athletic
designing
training
sessions
that
address
specific
areas
