Muscle Score
87/100
How hard the muscle worked, 0 to 100, calibrated to your own baseline.
Surface EMG · Strength training
See what muscles you’re actually training.
Two wireless sensors that attach to your muscles track their electrical activity. Allowing you to compare left vs right, rep vs rep, fatigued reps and progress over time.
Ships Q2 2027 · 30-day return · Training analytics, not a medical device
9:412 sensors
Bench press · Set 3
87score
Pectoralis major · left
L 53R 47
−6% right deficit
Right pec under-firing. Drop the weight.
End set
Muscle Score
87/ 100
Symmetry
6% deficit
Reps detected
11this set
Time under load
41.2seconds
What it reads
Four readings. No waveform to interpret.
Repsense normalises every reading against your own maximum, so the number belongs to you and not to an average.
Symmetry
6%
Left 53Right 47
One bar, split from the centre. Compare each muscle and adjust appropriately.
Consistency
11reps
Peak activation for every rep in the set. You see the reps that held and the ones that slipped.
Fatigue
7rep
Muscle intensity drops at rep. Measured from the signal, not counted off a clock.
Lifter mid-set, sensor on the pec — shot on black
Placeholder. Real photography goes here: shot on black, single hard key, sensor in frame but not hero.
The sensors
Two patches. No straps, no wires, no hub.
Each wireless EMG sensor sticks to the muscle and measures its electrical activity, sending the data via Bluetooth to our app. When you are done, place both sensors back in the case to charge.
Concept render. Final dimensions and specs to be confirmed.
The app
Place. Lift. Read.
The app tells you where the sensors go, watches the set, then logs what happened.
9:38Setup
Place the sensors
Left pecSignal good
Right pecWeak
Re-seat the right sensor.
Start set
01 · Place
The app shows where each sensor goes for the exercise you picked, and refuses to start until both signals are clean.
9:41Live
Rep 8 of set 3
91score
L 53R 47
End set
02 · Lift
Reps are counted off the signal, not a timer, with live feedback.
10:02Session 214
Which muscles fired
Sets
4
Time under load
168s
Peak pec · 12 weeks
+19% peak activation
03 · Read
Every set is logged against the muscle that did it, so twelve weeks later the trend is already there.
Professional EMG, minus the lab price.
1000Hz
Sample rate per channel
2
Sensors in the box
BLE
Wireless — no straps, no wires
30
Electrode pads included
Push. Measure. Repeat.
Stop guessing. Start measuring.
Repsense is a training-analytics tool, not a medical device. It is not intended to diagnose, treat or prevent any condition.