This is one of our first steps towards individualised feedback, helping athletes and coaches make smarter, real-time training decisions. With LVP feedback, you’ll know whether your athletes are lifting above, below, or within their normal velocity range - turning every set into actionable insight.
What is a Load-Velocity Profile (LVP)
A Load-Velocity Profile (LVP) shows the relationship between how much weight you lift and the speed you can move it. It can tell you whether you're more powerful, fast, or strong. An LVP can also estimate your 1RM and show whether training heavier or faster will improve it most.
With this new Barbell Velocity feature, your load-velocity profile now gives you real-time feedback on your lifting performance. It takes the best rep from your set (based on mean velocity) and compares it to your personalised LVP for that weight to give you instant feedback.
Why LVP Matters
LVP builds a personalised picture of how your athletes move loads at different velocities. Instead of relying only on prescribed weights or subjective feelings, you’ll now get data-driven feedback tailored to their recent performance.
Benefits for your athletes
Instant feedback on performance: They can see immediately if they're fresh, fatigued, or on track based on their recent lifts at the same load.
Better autoregulation: Make informed decisions on whether to increase, hold, or reduce the load for their next set.
Increased engagement: Try to “beat” their recent percentages, driving intent and motivation during training.
Self-competition: Continuously challenge themself while staying within safe and effective ranges.
How LVP Feedback Works
Daily updates
LVP lines are recalculated automatically every morning (6am local time), using the last 6 weeks of data. The best rep, in terms of mean velocity, from the set is chosen for the LVP.
Important: As LVP lines are recalculated once a day, if you using this feature for the first time you will have to record a measurement before the feedback will begin to pop up. This will result in a 'Building your profile!' pop up post set.
What does the “Building your profile” pop up mean?
When you see the “Building your profile” pop up, it means the system is still collecting enough data to create your personal Load-Velocity Profile (LVP). To generate a reliable profile, Output needs to see you perform sets at different loads and velocities. Until then, the app can’t yet tell if a lift is above, below, or on track with your usual performance.
How to build your profile faster
Perform sets across light, moderate, and heavy loads (not just one weight).
Use maximal intent on every rep so your data is consistent.
Aim for at least 5 sets at different percentages of your 1RM.
Example protocol for a Back Squat:
Set 1: 20–40% 1RM × 2–6 reps
Set 2: 40–50% 1RM × 2–4 reps
Set 3: 60–70% 1RM × 1–3 reps
Set 4: 70–80% 1RM × 1–2 reps
Set 5: >80% 1RM × 1 rep
Note: Once enough valid data is collected, your LVP will be built automatically, and you’ll start receiving On Track / Above / Below feedback instead of the “Building” pop up.
Rolling window
Only the most recent 6 weeks are considered. Each new training day shifts the window forward.
Minimum data requirement
At least 2 valid measurements in the past 6 weeks are needed to generate an LVP line. When utilising for the first time we recommend trying to achieve one data point in each velocity zone.
Feedback
After each set, a banner notification will show whether the performance was above, below, or within the expected velocity range.
This gives you a clear signal:
✅ On track = keep going as planned
You are lifting within 10% of your typical velocity range
⬆️ Above = you may be able to increase load or intensity
Your lifting velocity is more than 10% greater than usual
⬇️ Below = consider reducing load or volume, or adjusting effort
Your lifting velocity is more than 10% lower than usual
Use Cases
General VBT users
Even without dedicated LVP testing, you’ll automatically get more engaged with VBT principles through ongoing feedback.
Teams & athletes running periodic LVP tests
Instead of waiting for the next 6–12 week testing block, you’ll now see continuous tracking of progress.
Training = Testing.
New/inexperienced VBT users
Get guided, easy-to-action insights that help you learn how to autoregulate effectively.
Summary
LVP with autoregulation is designed to give you:
Smarter, data-driven training adjustments.
Continuous progress tracking.
Intuitive, actionable insights - without needing formal test sessions.
Need more help? Check out our Velocity-Based Training articles or contact [email protected].