Long-form articles on velocity-based training and computer-vision barbell tracking from Metric.https://metric.coachen-auhttps://metric.coach/articles/introducing-metric-jumphttps://metric.coach/articles/introducing-metric-jumpMetric Jump turns an ordinary phone into a vertical jump analyser. It tracks your centre of mass through the air, auto-classifies every jump, and gives you height, reactive strength and asymmetry without a force plate, mat or wearable.Fri, 10 Jul 2026 00:00:00 GMThttps://metric.coach/articles/metric-v6-9-ios-v1-2-android-speed-accuracy-improvementshttps://metric.coach/articles/metric-v6-9-ios-v1-2-android-speed-accuracy-improvementsMetric has had an upgrade with faster video processing and improvements to tracking accuracy in how it measures barbell velocity, with significant improvements in peak velocity. Here is how we did it.Wed, 24 Jun 2026 00:00:00 GMThttps://metric.coach/articles/metric-vs-repone-joe-real-world-validation-2026https://metric.coach/articles/metric-vs-repone-joe-real-world-validation-2026Joe ran Metric and a RepOne linear position transducer on the same sets for two weeks. 69 matched reps across squat, bench and deadlift. Here is what the data shows, including why deadlift mean velocity diverges and what that tells us about how each device measures the bar.Sat, 20 Jun 2026 00:00:00 GMThttps://metric.coach/articles/metric-vs-gymaware-validation-2026https://metric.coach/articles/metric-vs-gymaware-validation-2026How accurate is Metric across different camera positions, lighting conditions, frame rates and lift types? We ran a controlled session with a GymAware tether unit as ground truth, testing iOS v6.9 and Android v1.2 across 17 sets and multiple phone setups. Here is the full breakdown.Tue, 16 Jun 2026 00:00:00 GMThttps://metric.coach/articles/metric-is-now-on-androidhttps://metric.coach/articles/metric-is-now-on-androidMetric VBT is now on Android in public beta. The full story — why iOS came first, the Vulkan rewrite, the Adreno GPU bug, and what's in v1.Thu, 21 May 2026 00:00:00 GMThttps://metric.coach/articles/grossi-et-al-2026-metricvbt-vs-vitruve-bench-presshttps://metric.coach/articles/grossi-et-al-2026-metricvbt-vs-vitruve-bench-pressA 2026 peer-reviewed study from the University of Urbino tested MetricVBT against a Vitruve linear position transducer during Smith machine bench press at 1-RM. Peak velocity agreement was good; mean velocity was moderate. Here is what the data shows and what it means in practice.Fri, 03 Apr 2026 00:00:00 GMThttps://metric.coach/articles/metricshttps://metric.coach/articles/metricsMetric tracks 12 different rep-level data points, providing insight into every aspect of barbell motion on every rep. This guide covers each metricFri, 13 Feb 2026 00:00:00 GMThttps://metric.coach/articles/eccentric-power-a-new-metrichttps://metric.coach/articles/eccentric-power-a-new-metricEccentric qualities are a key element overlooked in a lot of athletic development settings with traditional bar speed tracking technologies. Eccentric power is a new way to measure and track eccentric work in the gymFri, 03 Oct 2025 00:00:00 GMThttps://metric.coach/articles/time-to-peak-velocityhttps://metric.coach/articles/time-to-peak-velocityTime to peak velocity is a useful metric for highlighting how rapidly an athlete can accelerate a load. This reveals an athletes rate of force development (RFD) and even their reactive strength index (RSI) helping coaches program effectivelyFri, 08 Aug 2025 00:00:00 GMThttps://metric.coach/articles/discover-the-science-behind-velocity-based-training-an-in-depth-guidehttps://metric.coach/articles/discover-the-science-behind-velocity-based-training-an-in-depth-guideExplore the cutting edge of strength and conditioning with this guide to Velocity Based Training. Learn the science behind VBT and its impact on performance.Mon, 04 Aug 2025 00:00:00 GMThttps://metric.coach/articles/the-complete-guide-to-bar-path-tracking-with-your-smartphonehttps://metric.coach/articles/the-complete-guide-to-bar-path-tracking-with-your-smartphoneMetric VBT - Free bar path tracker. Record and save video with bar path, velocity, ROM and tempo data analytics.Mon, 04 Aug 2025 00:00:00 GMThttps://metric.coach/articles/trends-the-simple-way-to-autoregulate-your-velocity-based-traininghttps://metric.coach/articles/trends-the-simple-way-to-autoregulate-your-velocity-based-trainingWith the new Trends feature in the Metric VBT application, you will be recovering faster on making strength gains like never before.Mon, 04 Aug 2025 00:00:00 GMThttps://metric.coach/articles/concurrent-validity-of-novel-smartphone-based-apps-monitoring-barbell-velocity-in-powerlifting-exerciseshttps://metric.coach/articles/concurrent-validity-of-novel-smartphone-based-apps-monitoring-barbell-velocity-in-powerlifting-exercisesHow accurate can an app be at measuring bar speed? this study compared three commercially available options: Qwik VBT, Metric, and MyLiftThu, 27 Mar 2025 00:00:00 GMThttps://metric.coach/articles/validation-of-a-commercially-available-mobile-applicationhttps://metric.coach/articles/validation-of-a-commercially-available-mobile-applicationA recent validation study was published by Trowell et al. (2024) comparing an early version of the Metric VBT app (v0.6.0) with 3D motion capture.Wed, 09 Oct 2024 00:00:00 GMThttps://metric.coach/articles/validity-and-reliability-of-a-mobile-application-metric-for-velocity-based-training-vbt-in-the-bench-press-exercisehttps://metric.coach/articles/validity-and-reliability-of-a-mobile-application-metric-for-velocity-based-training-vbt-in-the-bench-press-exerciseWe're excited to share the results of a recent validation study on Metric VBT, conducted by Antonio Šagovac as part of his Master’s studies at the University of Zagreb.Wed, 09 Oct 2024 00:00:00 GMThttps://metric.coach/articles/validation-reliability-of-metric-vbt-by-taber-et-alhttps://metric.coach/articles/validation-reliability-of-metric-vbt-by-taber-et-alMetric was found to be a valid and reliable velocity tracking solution when compared to gold-standard 3D motion capture.Mon, 07 Oct 2024 00:00:00 GMThttps://metric.coach/articles/2023-in-review-metric-leads-velocity-based-training-to-new-territoryhttps://metric.coach/articles/2023-in-review-metric-leads-velocity-based-training-to-new-territoryIn 2023, we've taken big strides towards making Metric the most powerful velocity tracking app availableMon, 17 Jun 2024 00:00:00 GMThttps://metric.coach/articles/best-gym-tripod-for-phoneshttps://metric.coach/articles/best-gym-tripod-for-phonesWhatever your training style a tripod can level up your workout video. Here are the best iPhone tripods for the gymMon, 17 Jun 2024 00:00:00 GMThttps://metric.coach/articles/estimate-your-1rm-with-the-metric-vbt-apphttps://metric.coach/articles/estimate-your-1rm-with-the-metric-vbt-appEstimate your 1RM with Metric VBT. Use velocity based training (VBT) to calculate an e1RM every workoutMon, 17 Jun 2024 00:00:00 GMThttps://metric.coach/articles/five-simple-ways-to-start-using-velocity-in-your-traininghttps://metric.coach/articles/five-simple-ways-to-start-using-velocity-in-your-trainingIntegrating velocity tracking in your training doesn't have to be difficult! Here are five of the most effective ways to use VBT in the gymMon, 17 Jun 2024 00:00:00 GMT