BioScout Web

A physics-informed, AI-powered bio tracker. Update

Terms & privacy

What BioScout is. A training tool that estimates movement and joint-load figures from phone video. It is not a medical device: it does not diagnose, treat or give medical advice, and its numbers are estimates. Use it at your own risk and ask a professional about anything health-related. It is made by one person, Dr. Basílio Gonçalves, and provided as it is, without warranty.

Without an account everything stays on this device. Videos are analysed here and never uploaded; profiles and logs live in this browser's storage, so clearing it or uninstalling the app deletes them. Export your data if you want to keep it.

With an account (optional), the athlete you mark as you is also kept in your account on servers in the EU (Supabase, Frankfurt) so your devices can sync: training sessions and their summaries, meals, diary and mood, sleep, weight, vitals, water and coffee, cycle, assessments, reaction tests and imported activities. Some of this is health data; by creating an account and syncing you agree to it being stored for that purpose. Only you can read it. Videos, motion curves and meal photos are not uploaded.

The feed. A post is a picture or short clip you choose plus up to 42 characters, shown with your username. A profile picture, if you add one, is shown next to your name to the same people. If your account is open, anyone signed in to BioScout can see your posts; if it is private, only you and your friends can. Friends are mutual (one asks, the other accepts) and see your posts and name, never your logs. Anyone signed in can find you by your username, which is chosen once and cannot be changed. Post only what you have the right to share, never other people without their consent, and nothing illegal, hateful or sexual; posts and accounts that break this can be removed. You keep the rights to what you post and let BioScout show it in the app.

Your data, your choice. Export it any time (Edit profile → Export), correct it in the app, and delete your account with everything in it, posts included (Edit profile → Account → Delete my account) — which also withdraws your consent. Questions or requests: basilio.goncalves7@gmail.com. You can also complain to the Austrian Data Protection Authority (dsb.gv.at).

Age. You must be at least 14 to create an account; younger athletes need a parent or guardian to agree for them.

Also: Help & chat runs on this device and is not stored; "Talk to a professional" opens your own email or WhatsApp. Strava and video-link imports go through a helper on your own computer. Nothing is sold, and there are no ads or trackers. When these terms change, the app asks you to agree again. Full privacy notice

Who is training?

Pick an athlete, or add one.

Name

Athlete

Name

Profile settings

Height (m)

Date of birth

Sex

Mass (kg)

These three belong to the athlete and are saved with the profile as you change them. Mass is the one to keep current: it scales every joint moment and contact force on the page, so the field says how old the stored figure is.

Skeleton overlay

Head size 1.00×

The head is sized from your ear landmarks, which are the only ones a close-up shot measures honestly. A sculpt with a lot of hair still needs a nudge — set it once and it saves with the profile.

Account

Username or email

Password

An account is optional.

Profile picture

Shown next to your name to the people who can see your posts.

This athlete is me Who sees my posts

Deleting your account.

Your password, to confirm

Everything is kept on this device. Without an account nothing is uploaded; to carry your data to another phone or laptop, export the file here and import it there.

Resting heart rate

Sit or lie quietly for five minutes first.

Wrist

Neck

Use your index and middle fingers, not your thumb.

Find the pulse, then press Start.

Beats in 10 seconds

Ten seconds x 6: every beat missed or added moves the result by 6 bpm.

Which part?

Analyse only the frames you need. Everything outside the range is skipped.

From

Energy & nutrition

How the calorie estimate is made, and what it is turned into.

Ask how hard each set was The rest of the day (not the training)

Every figure here is an estimate from equations fitted on other people: Mifflin-St Jeor for resting metabolism, Keytel for heart rate, the Compendium of Physical Activities for everything else. Treat them as a starting point you correct against the scale, not as a measurement.

Goal

What you want your weight and body composition to do. The calorie target follows it.

Goal

Target weight (kg)

Body fat now (%)

Target body fat (%)

All optional. Without a target and a date the plan uses a steady default rate; with a body-fat target and no target weight, the weight that keeps your lean mass is used.

Body fat from the camera

Press Start, face the camera, and turn sideways when told. Wear tight clothing, stand 2–3 m away with the phone upright at waist height, and breathe out normally.

Height (m)

Equation

Front: arms held out about 45° so they do not touch your body. Side: arms hanging relaxed at your sides, chin level.

Calibrate with a tape measure (once)

Measure yourself with a tape right after taking the pictures. The ratio is kept for this athlete and corrects every later camera measurement.

Neck (cm)

Waist (cm)

Hips (cm)

US Navy circumference equation (Hodgdon & Beckett). Circumferences are ellipses fitted to your silhouette's width and depth, scaled by your height. The equation alone is about ±3.5 % against DEXA; the camera adds more, so read the range, and compare measurements taken the same way over weeks rather than trusting one.

Reaction time

The time includes your screen's and touchscreen's own delay.

Help & chat

A simple helper that runs on this phone.

Pick what you want to do. Nothing is uploaded unless you connect to the lab engine in Simulate.

SimulateRun OpenSim and CEINMS on a marker and force-plate trial: scaling, IK, ID, static optimisation, muscle and joint contact forces.OpenSim ↗ · CEINMS ↗

Password

Wrong password.

Glossary

BioFeedback (testing)

This browser cannot talk to USB devices. Use Chrome or Edge on a computer; the lamp is still shown on screen.

Connect external device

Arduino

Baud

Test each pin pulse ms

Lamps

Arduino sketch (.ino)

Live inputs (A0–A5)

Tick the analog inputs to plot live (0–1023). An input with nothing connected floats and shows random values.

Arduino sketch

Edit the code here; it is kept in this browser. A browser cannot compile for the Arduino: download the .ino and upload it with _private/launchers/flash_arduino.bat or the Arduino IDE. Pins can be changed without uploading (Pins, above).

2. Movement and metric

Movement

Left load (kg) Right load (kg)

Metric Light when

Body mass (kg) Height (m) Hysteresis (°) Sound

Threshold (°)

Threshold 2

Threshold 3

3. Camera and go

Load .osim use

–

Source

Camera-estimated angles, smoothed; not motion capture. Testing feature.

Serial log

Loading…

Simulate

Loading…

Lab demo

Record a movement and read its joint angles, moments and estimated loads. No account, nothing uploaded: it all stays on this device. The numbers are estimates from video, not measurements, and this is not a medical device.

Height (m)

Body mass (kg)

Trial name

The recording is kept only until this page closes: save it as a trial (2_experimental/<trial>/marker_experimental.trc, estimated grf.mot, video; 3_iterations/bioscout_web/<trial>/ joint angles and planar inverse dynamics). With a session folder open in Simulate → Batch mode, every recording is written into that session by itself.

Movement

Distance from you to the wall (m) — optional

Fix the phone so it does not move, with you and the wall (or the court) both in the picture. Strokes are counted from your body; the ball is followed by its colour, so a yellow ball against a plain background works best. With the wall distance filled in, ball speed is the distance divided by the flight time.

Keep the video (export and clips)

Video link Clip (optional)

Fetched by the helper running on this device and analysed here — the video still never leaves your phone. Trim to the reps: tracking runs frame by frame, so four minutes of video is four minutes of work to reach six seconds of squat.

Starting…

standing by

Start and stop with a gesture

Two quick fists, either hand. For when the phone is across the room.

Rest timer Beeps and buzzes at zero

1:30

Optional. Rating of perceived exertion (0 nothing, 10 maximal) and, if you counted or wore one, your heart rate at the end of the set. Both make the calorie estimate less of a guess; neither makes it a measurement.

Share this set

Caption

Friends

Friends see your posts, even when your profile is private.

Feed

Posts from you and from open profiles, newest first.

New post

What's up?

Load

Added load (kg)

Assistance (kg)

Added load direction

seen from behind

Barbell, vest or belt in Added; band or machine offload in Assistance. Both apply at once — a loaded bar with a band assist is added minus assist.

Count by hand

Only the rep count is saved. A set counted by hand has no measurements, so it counts towards your volume but never towards a mean or a trend.