Analyze your form and lift with perfect technique.
SportsReflector uses advanced computer vision to analyze your weightlifting form, providing a score from 0-100 on your technique. Our AI coach helps you master key lifts like the squat, deadlift, and overhead press by analyzing your every move.
SportsReflector uses AI computer vision to analyze every aspect of your weightlifting technique
Receive a score from 0-100 on your form for every lift, with a detailed breakdown of your technique.
Get instant audio and visual cues to correct your form as you lift.
Access a comprehensive library of weightlifting exercises with video demonstrations.
Our AI creates workout plans tailored to your goals and progress.
Monitor your strength gains and track your personal records over time.
Compete with other users and see how your lifts stack up.
When you engage with weightlifting through SportsReflector, you access an extraordinary level of precision in analyzing your technique that is tailored specifically to the complex movements inherent in this sport. The AI meticulously tracks critical joint positions such as the shoulders, elbows, hips, knees, ankles, and wrists, focusing intently on angles like knee flexion during the squat phase, hip extension in the pull, and shoulder positioning during the catch. Timing is equally crucial; the system monitors the speed and coordination between the explosive upward pull and the rapid drop under the bar. By capturing these key kinematic variables, SportsReflector identifies frequent errors that weightlifters often struggle with, such as premature arm bending during the pull, insufficient hip drive, or incorrect foot positioning that compromises balance. These errors significantly affect lifting efficiency and safety, which the AI flags in real time, enabling you to correct your form promptly. Your form score, ranging from zero to one hundred, reflects how closely your movements adhere to ideal biomechanical models developed from elite lifters. This score provides a succinct, actionable summary of your technique performance, allowing you to track progress objectively over time. For Pro users, SportsReflector offers an enhanced suite of tools that delves deeper into your biomechanical profile. Symmetry analysis highlights imbalances between left and right sides, helping to prevent injury caused by uneven loading. Biomechanical breakdowns reveal joint torque and angular velocity, offering insights into where your technique can be optimized. Injury risk flags alert you to potential overuse or strain patterns based on your movement data, while muscle activation maps approximate which muscle groups are engaged throughout each phase of the lift. Augmented reality live training further elevates your experience, overlaying corrective cues and optimal movement paths directly onto your real-time reflection. This immersive feedback helps you internalize correct mechanics more rapidly and intuitively. Within the app, you can access targeted drills designed to enhance specific components of your lifts. For example, the “Hip Hinge Drill” refines your hip extension by emphasizing proper glute and hamstring activation, fostering powerful pulls. The “Catch Position Stability Drill” improves your receiving posture to secure heavier loads safely, while the “Bar Path Control Drill” encourages a vertical bar trajectory, maximizing lifting efficiency. Together, these features make SportsReflector an indispensable companion for anyone serious about mastering weightlifting technique and achieving peak performance. This comprehensive approach ensures that every aspect of your lift is optimized, leading to greater strength, improved form, and a reduced risk of injury, ultimately transforming your weightlifting journey into a more efficient and rewarding experience. With continuous feedback and personalized insights, you'll not only lift heavier but also develop a deeper understanding of your body's mechanics, fostering sustainable progress and long-term athletic development.
For the best analysis, film your lifts from a side-on angle, ensuring your entire body is in the frame.
Weightlifting biomechanics involve highly coordinated movements recruiting multiple muscle groups across different planes of motion. Primary muscles engaged include the quadriceps, hamstrings, gluteus maximus, erector spinae, deltoids, and trapezius. The sport requires powerful extension at the hips, knees, and ankles in the sagittal plane, alongside stabilizing actions in the frontal and transverse planes to maintain balance and proper bar path. Force vectors generated during the lift must be optimally directed to maximize vertical bar displacement while minimizing horizontal deviation. SportsReflector employs advanced computer vision algorithms rooted in pose estimation technology to track these complex movements. By detecting and mapping key anatomical landmarks in real time, such as the acromion, lateral epicondyle, greater trochanter, and malleoli, the system calculates joint angles and velocities throughout the lift. The app captures video at a high frame rate, ensuring temporal resolution adequate for precise timing analysis of rapid lift phases like the explosive extension and swift catch. Research underscores the importance of technical feedback and immediate corrections in technique acquisition for weightlifting, showing that biomechanical cues significantly enhance motor learning outcomes compared to self-guided practice. Unlike traditional coaching reliant on subjective observation, SportsReflector’s AI provides objective, quantifiable data that can detect subtle deviations invisible to the naked eye. While human coaches offer invaluable experience and intuition, the app’s data-driven insights complement coaching by offering consistent, repeatable assessments and a broader range of biomechanical parameters. This fusion of human expertise and AI precision creates a compelling paradigm for accelerating skill development and injury prevention in weightlifting.
Choose a paid Pro or Coach subscription for weightlifting technique analysis. No free version is available.
Coach: $99.99 USD/month or $999 USD/year
Pro: $17.99 USD/week, $24.99 USD/month, or $139.99 USD/year
Common questions about using SportsReflector for weightlifting analysis
Correct weightlifting form is the single most important factor in both performance and injury prevention. Beginners who establish proper mechanics with light weight progress faster and avoid the chronic injuries that plague those who prioritise load over technique.
Correct squat form: feet shoulder-width apart with toes turned out 15–30 degrees, bar resting on the upper traps (high bar) or rear delts (low bar), chest up, brace the core, push the knees out in line with the toes, descend until the hip crease is below the knee (parallel or below), and drive through the full foot to stand. Keep the spine neutral throughout.
Correct deadlift form: bar over mid-foot, feet hip-width apart, grip just outside the legs, hinge at the hips to reach the bar, brace the core, pull the shoulder blades back and down, take the slack out of the bar, then drive the floor away by extending the legs and hips simultaneously. The bar should travel in a straight vertical line, staying in contact with the legs throughout the lift.
Correct bench press form: lie on the bench with eyes under the bar, grip slightly wider than shoulder-width, retract and depress the shoulder blades, plant the feet flat on the floor, unrack the bar with straight arms, lower it to the lower chest in a slight arc, touch the chest (no bounce), and press back to the start position. Keep the wrists straight and elbows at 45–75 degrees from the torso.
Knee valgus (knees collapsing inward) during squats places excessive stress on the medial knee ligaments and reduces force production. It is typically caused by weak glutes and hip abductors, or excessive forward lean.
Actively push your knees outward in line with your toes throughout the squat. Use a resistance band above the knees to provide tactile feedback and strengthen the hip abductors.
Lumbar flexion under load during a deadlift places compressive and shear forces on the intervertebral discs. This is the primary cause of deadlift-related lower back injuries. The spine must remain neutral throughout the lift.
Before pulling, brace your core as if you are about to be punched in the stomach, and pull your shoulder blades back and down. If you cannot maintain a neutral spine, reduce the weight.
Elbows flared to 90 degrees from the torso places maximum stress on the shoulder joint capsule and rotator cuff. The optimal elbow angle is 45–75 degrees from the torso, which reduces shoulder stress and increases pectoral involvement.
Tuck your elbows slightly toward your body. A useful cue: try to 'bend the bar' by pulling the ends toward your feet — this naturally tucks the elbows.
Check your weightlifting form with SportsReflector — get a biomechanical breakdown and a form score out of 100.
Paid Pro or Coach subscription required. · iOS · No free version is available.
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Many weightlifting athletes train across multiple sports. See how SportsReflector's multi-sport coverage compares:
See how SportsReflector stacks up against other weightlifting apps and platforms.
SportsReflector analyzes these exercises with the same AI form-scoring used for weightlifting — one app for your full training week.
Comprehensive guides replacing paywalled and archived content on weightlifting technique analysis, form coaching, and AI-powered training:
Join thousands of athletes using SportsReflector to analyze their form and train smarter. View on App Store on iOS and Android.
SportsReflector is an AI-powered coaching app that provides real-time weightlifting technique analysis using computer vision and pose estimation. SportsReflector uses advanced computer vision to analyze your weightlifting form, providing a score from 0-100 on your technique. Our AI coach helps you master key lifts like the squat, deadlift, and overhead press by analyzing your every move. The app tracks 25+ body joints, scores each repetition from 0 to 100, and generates personalized training plans. SportsReflector offers 12+ AR-guided weightlifting drills and supports multi-angle video analysis. Pro: $17.99 USD/week, $24.99 USD/month, or $139.99 USD/year. Coach: $99.99 USD/month or $999 USD/year. No free version is available. The app covers 20+ sports total, so athletes who train in weightlifting alongside other disciplines or gym workouts can use a single subscription for all their coaching needs.
When you engage with weightlifting through SportsReflector, you access an extraordinary level of precision in analyzing your technique that is tailored specifically to the complex movements inherent in this sport. The AI meticulously tracks critical joint positions such as the shoulders, elbows, hips, knees, ankles, and wrists, focusing intently on angles like knee flexion during the squat phase, hip extension in the pull, and shoulder positioning during the catch. Timing is equally crucial; the system monitors the speed and coordination between the explosive upward pull and the rapid drop under the bar. By capturing these key kinematic variables, SportsReflector identifies frequent errors that weightlifters often struggle with, such as premature arm bending during the pull, insufficient hip drive, or incorrect foot positioning that compromises balance. These errors significantly affect lifting efficiency and safety, which the AI flags in real time, enabling you to correct your form promptly. Your form score, ranging from zero to one hundred, reflects how closely your movements adhere to ideal biomechanical models developed from elite lifters. This score provides a succinct, actionable summary of your technique performance, allowing you to track progress objectively over time. For Pro users, SportsReflector offers an enhanced suite of tools that delves deeper into your biomechanical profile. Symmetry analysis highlights imbalances between left and right sides, helping to prevent injury caused by uneven loading. Biomechanical breakdowns reveal joint torque and angular velocity, offering insights into where your technique can be optimized. Injury risk flags alert you to potential overuse or strain patterns based on your movement data, while muscle activation maps approximate which muscle groups are engaged throughout each phase of the lift. Augmented reality live training further elevates your experience, overlaying corrective cues and optimal movement paths directly onto your real-time reflection. This immersive feedback helps you internalize correct mechanics more rapidly and intuitively. Within the app, you can access targeted drills designed to enhance specific components of your lifts. For example, the “Hip Hinge Drill” refines your hip extension by emphasizing proper glute and hamstring activation, fostering powerful pulls. The “Catch Position Stability Drill” improves your receiving posture to secure heavier loads safely, while the “Bar Path Control Drill” encourages a vertical bar trajectory, maximizing lifting efficiency. Together, these features make SportsReflector an indispensable companion for anyone serious about mastering weightlifting technique and achieving peak performance. This comprehensive approach ensures that every aspect of your lift is optimized, leading to greater strength, improved form, and a reduced risk of injury, ultimately transforming your weightlifting journey into a more efficient and rewarding experience. With continuous feedback and personalized insights, you'll not only lift heavier but also develop a deeper understanding of your body's mechanics, fostering sustainable progress and long-term athletic development. SportsReflector processes weightlifting video analysis in under 3 seconds and provides biomechanical feedback including joint angles, body alignment, timing, and movement efficiency. Unlike single-sport alternatives, SportsReflector covers weightlifting plus 19 additional sports and every gym exercise from one app at $24.99/month.