A sample report. Mateo is a made-up 14-year-old pitcher, tested every four weeks from June to October. The page is the one every APX family gets, built by the same pipeline. Back to testing
MR
// Athlete profile
Mateo Rivera
14 years old · Baseball, pitcher, shortstop · 169.5 cm · 58.9 kg
Mateo is getting stronger and jumping higher
5 visits since JuneLatest
▲ Better
Hip inner thigh and shoulder turn-out strength rose over his visits. He jumps 5 cm higher than in June.
Hip inner thighLR
Jump height
and ten more below
● Steady
Ankle bend, the pull test for body size and the turn test. All are about the same.
and two more below
For their age
Jump power is higher than most boys his age. Roughly, so is jump height, and hip inner thigh strength is typical for his age.
Jump power
and five more below
Next
We'll work on shoulder turn-out strength in his right throwing arm in sessions. It was behind his left at the last two visits. Attempts varied on the overhead squat, jump push-off as a whole, left vs right, and quick hops. Plus two more. We'll check these again at the retest.
Mateo put in a big effort today. His jump keeps climbing, and we will keep building that power in sessions. We will see him back in four weeks for his retest.
Where we measured
FrontBack
Measured directly
Worked by a test
We're watching this
Common area for his age and sport
Measured directly: inner thigh muscles, outer hip muscles, hamstrings, shoulders, calves. The lighter areas were worked by the jumps, squats and sprints without being measured one by one.
Striped areas are results we're keeping an eye on. We'll check this again at the retest.
The outlines are about his age and sport, not about his results.
An unshaded area was not part of the tests on this page.
We're watching this: right shoulder
Common area for his age and sport: knees, front of the thigh, inner thigh, shoulders, upper back, forearms, hamstrings
Where the outlines come from
Knees, Front of the thigh: van der Sluis 2014; Oxendale 2025
Inner thigh, Front of the thigh: Oxendale 2025
Shoulders, Upper back, Forearms: Olsen 2006
Hamstrings, Inner thigh: Materne 2021
Growth
He grew 2.3 cm and gained 3.1 kg since the first visit in June. He isn't growing fast right now.
We measure height, sitting height and body mass at each visit, and the camera adds arm span and hand and foot length. They show how much a body has changed since last time, which helps us read every other result fairly.
Standing height. It is typical for boys his age, and he has grown steadily since June.
Body mass
58.9 kg
▲ Up 3.1 kg since Jun
Body weight. It is typical for boys his age and has risen steadily since June.
Sitting height
87.3 cm
▲ Up 2.1 cm since Jun
Height when seated. It has risen steadily since June.
Leg length
82.2 cm
Steady since Sep
Standing height minus sitting height. About the same since June.
Arm span
173.2 cm
Steady since Sep
Fingertip to fingertip with the arms out wide. About the same as last time.
How much longer the arm span is than height. About the same at every visit.
Hand length
18.7 cm
Steady since Sep
Hand length. About the same as last time.
Foot length
26.2 cm
Steady since Sep
Foot length. About the same as last time.
Movement: Steady, with some squat attempts varied
Ankle bend is about the same on both sides. So are knee drift and hip tilt in the overhead squat. The squat's knee bend, ankle bend and forward lean attempts varied. A pitcher needs loose ankles and hips to stride and land well.
Ankle bend, standing
Left41°Right39°
LR
lessmore
How far the knee drives over the toes with the heel down, as an angle. Both sides are about the same as last time.
Overhead squat, knee bend
Left103.6°*Right102.8°
LR
lessmore
* Attempts varied.
His overhead squat attempts varied this time.
Details
Ankle bend
What we tested
Standing in a split stance and driving the front knee forward over the toes with the heel down, each side in turn, filmed by a camera that tracks the joints.
Why
How far the ankle bends sets how deep an athlete can squat and how softly they can land.
Result
Standing
L41R39°
Knee past the foot
L11.8R11.2cm
The same test, read as how far the knee passes the foot. Nothing stands out, and both sides are about the same.
All the numbers
Measure
Left
Right
Difference
Since the start
Since last time
Status
History
Ankle bend, standing
41°
39°
—
L3° morefrom 38R3° morefrom 36.2
BothAbout the samewithin 5°
No target
LR
Ankle bend, knee past the foot
11.8cm
11.2cm
—
L1 cm higherfrom 10.8R1 cm higherfrom 10.2
BothAbout the samewithin 1.5 cm
No target
LR
Measure
Shown
How it was read
Ankle bend, standing, left
41°
consistent
Ankle bend, standing, right
39°
consistent
Ankle bend, knee past the foot, left
11.8 cm
consistent
Ankle bend, knee past the foot, right
11.2 cm
consistent
Overhead squat
What we tested
A slow, deep squat with both arms held straight overhead, filmed by a camera that tracks the joints.
Why
It shows how the ankles, knees, hips and trunk work together, which shapes how every jump and landing is absorbed.
Result
Knee bend
L103.6R102.8°
Ankle bend
L26.6R25°
The attempts varied, so this one isn't read.
Knee drift
L2.9R3°
How far the knee drifts inward in a deep overhead squat. About the same on both sides across his visits.
Forward lean
56.1°
The attempts varied this time.
Hip tilt
52°
How much the hips tip forward at the bottom of the squat. About the same at every visit.
All the numbers
Measure
Left
Right
Difference
Since the start
Since last time
Status
History
Overhead squat, ankle bend
26.6°
25°
—
BothNot comparedattempts varied
BothNot comparedattempts varied
No target
LR
Overhead squat, knee drift
2.9°
3°
—
BothSame as the start
BothAbout the samewithin 4°
No target
LR
Overhead squat, knee bend
103.6°
102.8°
—
LNot comparedattempts variedR1° lessfrom 103.8
LNot comparedattempts variedRAbout the samewithin 9.9°
No target
LR
Overhead squat, forward lean
56.1°not sided
—
Not comparedattempts varied
Not comparedattempts varied
No targetattempts varied
Overhead squat, hip tilt
52°not sided
—
Same as the start
About the samewithin 6°
No target
Measure
Shown
How it was read
Overhead squat, knee bend, left
103.6°
the attempts varied
Overhead squat, knee bend, right
102.8°
consistent
Overhead squat, ankle bend, left
26.6°
the attempts varied
Overhead squat, ankle bend, right
25°
the attempts varied
Overhead squat, knee drift, left
2.9°
consistent
Overhead squat, knee drift, right
3°
consistent
Overhead squat, forward lean
56.1°
the attempts varied
Overhead squat, hip tilt
52°
consistent
Power: Higher than most for his age, and rising
Jump height is 5 cm higher than in June, and jump power rose steadily over 5 visits. The two legs shared the push evenly at its peak. The whole push-off attempts varied. A quick first step gets a shortstop to more balls.
Power from the same jump, for his body size. Higher than most boys his age, with a steady rise over the visits. About the same as last time.
More from this test
How evenly the two legs push at the jump's peak. The sides are 2 percent apart, well inside the working target.
The attempts varied this time.
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Jump height
32.3cm
17% higherfrom 27.7 cm
32.3cm
About the samewithin the 10.5% day-to-day variation
No target
Jump power
57W/kg
16% higherfrom 49 W/kg
57W/kg
About the samewithin the 11.6% day-to-day variation (placeholder)
No target
Jump push-off at its peak, left vs right
right lower by 2%
—
—
—
Target: the two sides
Even
under 5%
In range
under 10%
Out of range
10 to 15%
Flagged
15% and over
This difference
2%, right lower
These are APX's working thresholds, placeholders re-centred on the gym's own results as they arrive; there is no universal rule for how far two sides may differ, and the research says each test needs its own.
Source: APX working target (placeholder); Bishop 2018.
Jump push-off as a whole, left vs right
left lower by 2.8%
—
—
—
attempts varied
Target: the two sides
Even
under 5%
In range
under 10%
Out of range
10 to 15%
Flagged
15% and over
This difference
2.8%, left lower
These are APX's working thresholds, placeholders re-centred on the gym's own results as they arrive; there is no universal rule for how far two sides may differ, and the research says each test needs its own.
Needs a re-check: the attempts varied, so nothing is read from the two sides until the retest.
Source: APX working target (placeholder); Bishop 2018.
Measure
Attempts
Shown
How it was read
Jump height
32.3 / 31.6 / 31.8
32.3 cm
consistent
Jump power
57 / 54.6 / 54.7
57 W/kg
consistent
Jump push-off at its peak, left vs right
-1.1 / -2.8 / -2
-2 %
consistent
Jump push-off as a whole, left vs right
2.6 / -2.3 / 8
2.8 %
the attempts varied
Jump, time from dip to take-off
0.93 / 0.87 / 1.05
0.93 s
the attempts varied
Jump, depth of the dip
28 / 29.2 / 32
29.2 cm
consistent
Reactive strength: Attempts varied this time
Quick hops and jump quickness both had attempts that varied, so they aren't read. Quick, springy legs help a shortstop react to a ground ball.
Quick hops
1.2
His hop attempts varied this time.
Jump quickness
0.36 m/s
The attempts varied, so this result isn't read.
Details
Quick hops
What we tested
Quick hops in place on the force plates, as high as possible with as little time on the ground as possible.
Why
Most of sport is landing and going again, and this shows how springy the ankles and legs are.
Result
Quick hops
1.17
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Quick hops
1.17
Not comparedattempts varied
1.17
Not comparedattempts varied
No targetattempts varied
Measure
Attempts
Shown
How it was read
Quick hops
1.17 / 1.02
1.17
the attempts varied
Quick hops, time on the ground
0.2 / 0.21
0.2 s
one reading
Jump quickness
What we tested
Read from the same standing jump: how high it went for how long the dip and push took.
Why
Sport rarely gives time to wind up, so a jump that is both high and quick shows springy, usable power.
Result
Jump quickness
0.36m/s
No study covers this age yet.
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Jump quickness
0.36m/s
Not comparedattempts varied
0.36m/s
Not comparedattempts varied
No targetattempts varied
Measure
Attempts
Shown
How it was read
Jump quickness
0.35 / 0.36 / 0.3
0.36 m/s
the attempts varied
Strength: Mostly rising, hip sides closer together
Hip inner thigh strength rose steadily, and the gap between sides narrowed. Mid-thigh pull peak force rose since July, but roughly has room to grow for his age. The mid-thigh pull for body size held about the same. A pitcher's drive off the mound starts in the legs.
Mid-thigh pull
250% of body weight
Normal test-to-test range
Pulling hard on a fixed bar, for his body size. About the same as last time.
This range is estimated from the study's average and spread, not counted from its athletes.
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Hip inner thigh
L54R58% of body weightleft lower by 4.6%
L57% higherfrom 35R25% higherfrom 46
L54R58
BothAbout the samewithin the 25.6% day-to-day variation
attempts varied
Target: the two sides
Even
under 5%
In range
under 10%
Out of range
10 to 15%
Flagged
15% and over
This difference
4.6%, left lower
These are APX's working thresholds, placeholders re-centred on the gym's own results as they arrive; there is no universal rule for how far two sides may differ, and the research says each test needs its own.
Needs a re-check: the attempts varied, so nothing is read from the two sides until the retest.
Source: APX working target (placeholder); Bishop 2018.
LR
Hip outer hip
L49R50% of body weightleft lower by 3.9%
L26% higherfrom 39R25% higherfrom 40
L49R50
BothAbout the samewithin the 25.6% day-to-day variation (placeholder)
attempts varied
Target: the two sides
Even
under 5%
In range
under 10%
Out of range
10 to 15%
Flagged
15% and over
This difference
3.9%, left lower
These are APX's working thresholds, placeholders re-centred on the gym's own results as they arrive; there is no universal rule for how far two sides may differ, and the research says each test needs its own.
Needs a re-check: the attempts varied, so nothing is read from the two sides until the retest.
Source: APX working target (placeholder); Bishop 2018.
LR
Hip inner thigh compared with outer hip
L1.10R1.15target: at least nine tenths
—
—
—
Target: inner thigh against outer hip
Target
at least 0.90
Left
1.10
Right
1.15
Inner thigh strength well below outer hip strength is the pattern most often trained. The target comes from elite youth soccer and is a prompt to look closer, not a rule.
Source: Wollin 2018.
Measure
Attempts
Shown
How it was read
Hip inner thigh, left
52 / 54 / 52
54 % of body weight
consistent
Hip inner thigh, right
53 / 58 / 55
58 % of body weight
consistent
Hip outer hip, left
49 / 47 / 46
49 % of body weight
consistent
Hip outer hip, right
49 / 48 / 50
50 % of body weight
consistent
Hip inner thigh, left vs right
1.2 / 5.9 / 6.8
4.6 %
the attempts varied
Hip outer hip, left vs right
0.2 / 3.1 / 8.4
3.9 %
the attempts varied
Hamstring strength
What we tested
Lying face down: pull the heel toward the seat against a fixed pad as hard as possible, each leg in turn.
Why
The back of the thigh brakes the leg in every sprinting stride.
Result
Hamstring pull
L20R24% of body weight
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Hamstring pull
L20R24% of body weightleft lower by 14% attempt for attemptbest attempts: left lower by 16.8%
L25% higherfrom 16R25% higherfrom 19
L20R24
BothAbout the samewithin the 25.6% day-to-day variation (placeholder)
attempts varied; measure again
Target: the two sides
Even
under 5%
In range
under 10%
Out of range
10 to 15%
Flagged
15% and over
Attempt for attempt
14%, left lower
Best attempts
16.8%, left lower
The status reads the sides attempt by attempt, the steadier figure; the best attempts are the ones shown. These are APX's working thresholds, placeholders re-centred on the gym's own results as they arrive; there is no universal rule for how far two sides may differ, and the research says each test needs its own.
Needs a re-check: the attempts varied, so nothing is read from the two sides until the retest.
Source: APX working target (placeholder); Bishop 2018.
LR
Measure
Attempts
Shown
How it was read
Hamstring pull, left
20 / 20 / 19
20 % of body weight
consistent
Hamstring pull, right
24 / 24 / 21
24 % of body weight
consistent
Hamstring pull, left vs right
16.9 / 16.5 / 8.5
14 %
the attempts varied
Speed: Faster since June
All three sprint times came down steadily since June. Roughly, his twenty metres is faster than most boys his age, and his ten and thirty metres are typical. A shortstop's first few steps decide which balls he reaches.
A rough reference: the study does not say how far behind the first gate it started.
This range is estimated from the study's average and spread, not counted from its athletes.
Time to twenty metres. He is 0.18 seconds faster than in June, and roughly faster than most boys his age.
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Ten metres
1.86s
5% fasterfrom 1.96 s
1.86s
About the samewithin the 4.9% day-to-day variation
No target
Twenty metres
3.22s
5% fasterfrom 3.4 s
3.22s
About the samewithin the 4.9% day-to-day variation
No target
Thirty metres
4.5s
5% fasterfrom 4.74 s
4.5s
About the samewithin the 4.9% day-to-day variation
No target
Measure
Attempts
Shown
How it was read
Ten metres
1.86 / 1.88
1.86 s
consistent
Twenty metres
3.22 / 3.26
3.22 s
consistent
Thirty metres
4.5 / 4.55
4.5 s
consistent
Change of direction: About the same as last time
Turn times and turn cost are about the same on both sides. A fast plant and turn helps a shortstop field and throw on the move.
Five-oh-five
Five-oh-five
Left2.5 sRight2.4 s
LR
Turn cost
Left0.59 sRight0.55 s
LR
slowerfaster
Five-oh-five over time
Sprint, plant, turn and sprint back, off each foot. Both sides are about the same as last time.
How much time the turn itself costs. About the same on both sides.
Details
Five-oh-five
What we tested
Sprint through a timing gate, plant and turn at a line five metres on, and sprint back through the gate. Two runs turning off each foot.
Why
Games are played in cuts and turns, and this times the stop, the turn and the restart on each side.
Result
Five-oh-five
L2.45R2.41s
Turn cost
L0.59R0.55s
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Five-oh-five
L2.45R2.41sright lower by 1.6%
L6% fasterfrom 2.6R6% fasterfrom 2.56
L2.45R2.41
BothAbout the samewithin the 6.3% day-to-day variation
No target
LR
Turn cost
L0.59R0.55sright lower by 6.8%
L0.05 s fasterfrom 0.64R0.05 s fasterfrom 0.6
L0.59R0.55
BothAbout the samewithin 0.19 s (placeholder)
No target
LR
Measure
Attempts
Shown
How it was read
Five-oh-five, left
2.47 / 2.45
2.45 s
consistent
Five-oh-five, right
2.42 / 2.41
2.41 s
consistent
Turn cost, left
—
0.59 s
consistent
Turn cost, right
—
0.55 s
consistent
Speed strength: Rising steadily over the visits
Ankle push rose steadily on both sides. Hip lift rose on the left since June, while the right is about the same. Strong ankles and hips power a shortstop's first steps to the ball.
Ankle push
Left66%Right53%
LR
weakerstronger
Percent of body weight.
Pushing through the toes, each leg in turn. Both sides rose steadily over the visits.
Hip lift
Left29%Right27%
LR
weakerstronger
Percent of body weight.
Lifting the knee against a pad. The left side is stronger than in June, and the right is about the same.
Details
Ankle push
What we tested
Lying down with the knee straight, pushing through the toes against a fixed pad, each leg in turn.
Why
The calf is the ankle's push in every sprinting stride and hop.
Result
Ankle push
L66R53% of body weight
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Ankle push
L66R53% of body weightright lower by 15.5% attempt for attemptbest attempts: right lower by 19%
L25% higherfrom 52R25% higherfrom 42
L66R53
BothAbout the samewithin the 25.6% day-to-day variation (placeholder)
attempts varied; measure again
Target: the two sides
Even
under 5%
In range
under 10%
Out of range
10 to 15%
Flagged
15% and over
Attempt for attempt
15.5%, right lower
Best attempts
19%, right lower
The status reads the sides attempt by attempt, the steadier figure; the best attempts are the ones shown. These are APX's working thresholds, placeholders re-centred on the gym's own results as they arrive; there is no universal rule for how far two sides may differ, and the research says each test needs its own.
Needs a re-check: the attempts varied, so nothing is read from the two sides until the retest.
Source: APX working target (placeholder); Bishop 2018.
LR
Measure
Attempts
Shown
How it was read
Ankle push, left
66 / 60 / 58
66 % of body weight
consistent
Ankle push, right
53 / 51 / 51
53 % of body weight
consistent
Ankle push, left vs right
-19 / -14.9 / -12.5
-15.5 %
the attempts varied
Hip lift
What we tested
Lifting the knee against a fixed pad as hard as possible, each leg in turn.
Why
The hip lift drives the knee forward in sprinting.
Result
Hip lift
L29R27% of body weight
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Hip lift
L29R27% of body weightright lower by 10% attempt for attemptbest attempts: right lower by 7.6%
L26% higherfrom 23R25% higherfrom 22
L29R27
BothAbout the samewithin the 25.6% day-to-day variation (placeholder)
attempts varied; measure again
Target: the two sides
Even
under 5%
In range
under 10%
Out of range
10 to 15%
Flagged
15% and over
Attempt for attempt
10%, right lower
Best attempts
7.6%, right lower
The status reads the sides attempt by attempt, the steadier figure; the best attempts are the ones shown. These are APX's working thresholds, placeholders re-centred on the gym's own results as they arrive; there is no universal rule for how far two sides may differ, and the research says each test needs its own.
Needs a re-check: the attempts varied, so nothing is read from the two sides until the retest.
Source: APX working target (placeholder); Bishop 2018.
LR
Measure
Attempts
Shown
How it was read
Hip lift, left
29 / 29 / 29
29 % of body weight
consistent
Hip lift, right
27 / 27 / 25
27 % of body weight
consistent
Hip lift, left vs right
-7.4 / -8.7 / -13.9
-10 %
the attempts varied
Overhead and Rotation: Turn-out strength rising, right still behind
Shoulder turn-out strength rose on both sides since June, but the right still trails the left. Shoulder and hip ranges are about the same. Straight-arm shoulder strength was not tested this time. A pitcher's shoulder turns fast, so strength around it matters.
Shoulder rotation, outward
Left94°Right104°
LR
lessmore
How far the forearm turns back with the arm out. Both sides are about the same as last time.
Shoulder rotation strength
Turn-out strengthRight 18% lower
Left17%Right14%
LR
Turn-in strength
Left16%Right16%
LR
weakerstronger
Percent of body weight.
Shoulder turn-out strength over time
Turning the forearm back against a pad. Both sides are stronger since June, and the gap narrowed from 26 to 15 percent. The right throwing arm was still behind at the last two visits.
Turning the forearm forward against a pad. The left side is stronger than in June, and the right is about the same.
Seated hip rotation, outward
Left42.5°Right39.3°
LR
lessmore
How far each hip turns out when seated. About the same on both sides across his visits.
Details
Shoulder range
What we tested
The arm out at shoulder height, turning the forearm back and then forward as far as it goes, in front of the camera.
Why
How far each shoulder turns changes with throwing, and the two arms are followed against each other.
Result
Shoulder rotation, outward
L94R104°
Shoulder rotation, inward
L58R55°
How far the forearm turns forward. Both sides are about the same across the visits.
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Shoulder rotation, outward
L94°R104°
L1° lessfrom 94.9R1° lessfrom 105
L—R—
BothAbout the samewithin 9.9°
No target
LR
Shoulder rotation, inward
L58°R55°
L1° lessfrom 58.6R9° morefrom 46.2
L—R—
BothAbout the samewithin 9.9°
No target
LR
Measure
Shown
How it was read
Shoulder rotation, outward, left
94°
consistent
Shoulder rotation, outward, right
104°
consistent
Shoulder rotation, inward, left
58°
consistent
Shoulder rotation, inward, right
55°
consistent
Shoulder rotation strength
What we tested
Lying on the back with the arm out: turn the forearm back, then forward, against a fixed pad.
Why
The muscles that turn the arm in and out control the shoulder through every throw.
Result
Shoulder turn-out strength
L17R14% of body weight
Shoulder turn-in strength
L16R16% of body weight
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Shoulder turn-out strength
L17R14% of body weightright lower by 15%
L26% higherfrom 13R44% higherfrom 10
L17R14
BothAbout the samewithin the 25.6% day-to-day variation (placeholder)
Target: the two sides
Even
under 5%
In range
under 10%
Out of range
10 to 15%
Flagged
15% and over
This difference
15%, right lower
These are APX's working thresholds, placeholders re-centred on the gym's own results as they arrive; there is no universal rule for how far two sides may differ, and the research says each test needs its own.
Source: APX working target (placeholder); Bishop 2018.
LR
Shoulder turn-in strength
L16R16% of body weightleft lower by 2.4%
L26% higherfrom 13R25% higherfrom 13
L16R16
BothAbout the samewithin the 25.6% day-to-day variation (placeholder)
Target: the two sides
Even
under 5%
In range
under 10%
Out of range
10 to 15%
Flagged
15% and over
This difference
2.4%, left lower
These are APX's working thresholds, placeholders re-centred on the gym's own results as they arrive; there is no universal rule for how far two sides may differ, and the research says each test needs its own.
Source: APX working target (placeholder); Bishop 2018.
LR
Shoulder turn-out compared with turn-in
L1.07R0.88left: turn-out more than turn-inright: turn-out less than turn-in
—
—
—
No target
Measure
Attempts
Shown
How it was read
Shoulder turn-out strength, left
17 / 17 / 16
17 % of body weight
consistent
Shoulder turn-out strength, right
14 / 14 / 14
14 % of body weight
consistent
Shoulder turn-in strength, left
15 / 16 / 15
16 % of body weight
consistent
Shoulder turn-in strength, right
15 / 16 / 16
16 % of body weight
consistent
Shoulder turn-out strength, left vs right
-16.7 / -16.7 / -11.7
-15 %
consistent
Shoulder turn-in strength, left vs right
1 / 3.3 / 3
2.4 %
consistent
Seated hip rotation
What we tested
Seated, turning each hip in and then out as far as it goes, in front of the camera.
Why
Hip turn lets the body rotate through a throw or swing without forcing the back or the knee.
Result
Outward
L42.5R39.3°
Inward
L46R49.6°
How far each hip turns in when seated. Nothing stands out, about the same as last time.
All the numbers
Measure
Latest
Since the start
Best
Since last time
Status
History
Seated hip rotation, outward
L42.5°R39.3°
BothSame as the start
L—R—
BothAbout the samewithin 8°
No target
LR
Seated hip rotation, inward
L46°R49.6°
BothSame as the start
L—R—
BothAbout the samewithin 8°
No target
LR
Measure
Shown
How it was read
Seated hip rotation, outward, left
42.5°
consistent
Seated hip rotation, outward, right
39.3°
consistent
Seated hip rotation, inward, left
46°
consistent
Seated hip rotation, inward, right
49.6°
consistent
Straight-arm shoulder strength
Not run yet: it is added at the next retest.
Next step
Book Mateo's retest for the week of Oct 31. Any day that week works.
Mateo's retest was due the week of Oct 31. Book the next open session.
The plan we'd suggest: Speed and Agility. Up to ten athletes, three hour-long classes a week of sprint mechanics, acceleration, agility, jumping and landing, and range of motion, grouped by ability.
The work happens in APX sessions; there is nothing to do at home.
Studies we compare with
The age comparisons on this page come from these published studies.
CDC growth charts (2000)
Children and teenagers across the United States.
Kuczmarski RJ et al. 2000 CDC growth charts for the United States. Vital Health Stat 11(246), 2002. Data files cdc.gov/growthcharts/data/zscore/statage.csv and wtage.csv.
Matches how we test.
Focke 2013
Children and teenagers from across Germany, 67 boys his age.
Focke A, Strutzenberger G, Jekauc D, Worth A, Woll A, Schwameder H. Effects of age, sex and activity level on counter-movement jump performance in children and adolescents. Eur J Sport Sci 2013;13(5):518-526. Table II.
Boys in one Japanese professional basketball club's youth academy, 27 boys his age.
Kamada K, Yamashita D, Nishiumi D, Hirose N. Reliability of isometric mid-thigh pull in youth male basketball players across age categories. J Sports Sci Med 2026;25:556-568. Table 2.
A rough match to how we test. A rough reference: their sprint started closer to the first gate than ours.
This range is estimated from the study's average and spread, not counted from its athletes.
A small study: treat this as a rough comparison.
Important information about this report
This report describes physical tests measured on the dates shown. It is general information for the athlete and their family. It is not medical advice, a diagnosis or a prediction, and it does not replace care from a physician or other licensed health professional.
Not medical advice
No part of this report is given as medical care, and reading it does not create a clinician and patient relationship with APX or any APX coach. Nothing here diagnoses, treats, clears or rules out any injury, illness or condition, and no status on this page means an athlete is or is not safe to train or compete.
Check with a physician before starting or changing a training program, especially after an injury, surgery or illness. Stop and seek care for pain, dizziness, shortness of breath or any new symptom. In an emergency, call emergency services right away.
What the numbers can and cannot show
Tests are run on commercial testing equipment under set protocols. Every test varies from day to day, and one session reflects that day: sleep, soreness, effort, recent growth and time of day all move the numbers. Values can also carry errors from the equipment, the set-up or the software that reads them.
Targets, and the words that say how a result compares with them, are working thresholds. Meeting a target does not mean free of risk, and missing one does not mean an injury or a disease. This report cannot predict future performance, injury, team selection, a scholarship or a professional career, and APX does not promise any result from testing or training.
Own start and age references
Changes are read against the athlete's own first results. They are not a grade and cannot be compared between athletes.
Typical for age values come from the published studies named beside them. Those studies tested different groups, with different equipment and methods, so the values are shown for context, not as standards to meet. The studies' authors have not reviewed or endorsed this report.
How this report is made
APX software measures every result on this page from the test data. The written lines are drafted with AI writing assistance (Anthropic's Claude) from those results and the body measurements, and never from the athlete's name, date of birth, contact details or medical answers. Software checks every line against the results, and APX staff review the page before the family sees it. Training guidance on this page is general and is meant to be carried out in APX sessions under a coach's supervision; it is not an individual exercise prescription for use elsewhere. The report reflects the latest session shown and is not updated between sessions.
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