Live HRV, session recordings, an athlete dashboard, and biofeedback games. Connect your sensor in Chrome or Edge on Mac or PC. HRV requires beat intervals.
Heart biofeedback and heart + skin biofeedback games, each with its own breath pacer and levels.
KörperForce turns heart and skin biofeedback into practice: learning to shift your physiological state, stay focused under pressure, and recover when the demand is over.
Practice moving from heightened activation toward a calmer, more controlled state.
Learn to notice changes in your state and deliberately influence your response.
Maintain attention, timing, and precision while your physiology changes.
Build a repeatable downshift after training, competition, work, or stressful events.
Anyone who needs to stay effective when the pressure is on, then recover when it’s over.
Train regulation, focus, recovery, and performance under competition pressure.
Military, firefighters, EMTs, doctors, coaches, and other professionals working under pressure.
Students, stylists, leaders, and anyone who wants more control over their response to stress.
The Lightstone’s three finger sensors read your pulse and your skin conductance. The dashboard reads its raw signal directly, detects every heartbeat, and turns it into research-grade HRV and arousal measures.
The optical finger sensor (PPG) is sampled about 30 times a second; every heartbeat is detected and timed.
rMSSD, SDNN, pNN50, SD1/SD2, LF/HF power, coherence, sample entropy and DFA α1, from every interval.
Two skin sensors track sweat-driven arousal: the fast, honest signal of stress and calm.
Connects straight from Chrome or Edge on Mac and PC (WebHID). Open the page, plug in, pick the device.
Two ways to train. Live sessions give coaches and clinicians the full picture in real time; the games turn the same signals into play that athletes want to come back to.
Every session builds each athlete’s own normal. Trends across days, weeks and years, plain-language readouts, and check-in alerts when something is off.
Press play and the session comes back to life: the beating heart, the heart rate, the pulse and skin conductance, the pacer and every event, in real time or sped up. Add notes pinned to the moment they happened.
One living shape that sums up a session. Its outline is the Poincaré plot of the heartbeats; its color and score blend HRV, heart rate, rhythm quality and skin conductance. Athletes understand it instantly: bigger, smoother and brighter is better.
Drop your Kubios folder. Bulk-import years of recordings in one go: session CSV files and RR interval files (the kind Kubios exports) are read straight in the browser and analyzed with the same HRV engine as live sessions.
Drag a whole folder onto the window; hundreds of sessions import in one pass.
Session CSVs and RR interval exports, in seconds or milliseconds.
Files are read and analyzed on your own computer; only the results are saved to your account.
Heart rhythm for HRV and skin conductance (SCL) in one compact unit on a soft strap, built for the KörperForce HRV Dashboard. Your hands stay free for training, breathing and play.
Plug in your Lightstone or connect a compatible Bluetooth heart rate monitor, open Chrome or Edge, and breathe.
| Check | Date | Time | Session | Length | HR | Min HR | rMSSD | SDNN | LF/HF | Peak Hz | Smoothness | Corrected |
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Manage billing, change plan, or cancel anytime.
Clinic accounts must sign this agreement before adding clients.
Auto follows your device’s light or dark setting.
App: touch-friendly tabs, made for phones and tablets. Desktop: the full dashboard as on a computer. The Lightstone connects only in Chrome or Edge on a computer.
Install KörperForce on this computer: it gets its own icon on the desktop and Start menu and opens in its own window. Works in Chrome and Microsoft Edge.
Tests whether HRV moves with geomagnetic and solar activity across every saved reading (GFZ Potsdam record since 2016). All athletes asks whether the link exists in our data; one athlete asks whether that person is sensitive. Every report's Raw log reads today against these findings on its own (section F). Admin only.
Choose an athlete in the top bar to view their metrics.
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HR Monitor shows games whose mechanics need heart rate and real beat-to-beat RR intervals, but no skin conductance. Most watches broadcast BPM only. Bluetooth game control is not enabled yet; it is currently available for Live Session recordings.
No games match these filters. Choose All games or a different device.
Suggest a gameHave an idea for a biofeedback game?