Keeping track of your knee health is easier than ever, thanks to advances in smartphone technology and motion analysis . More people are now using the cameras on their phones to perform simple yet effective self-assessments at home, saving both time and unnecessary clinic visits. One standout tool is MAI Motion , a user-friendly system that uses markerless motion capture powered by artificial intelligence . With just a video taken on your phone, MAI Motion provides in-depth insights into your knee movement. In this article, we’ll guide you step by step through a clinically validated sit-to-stand test using MAI Motion , empowering you to manage your knee health confidently , right from home.

Why Markerless Motion Capture Is a Game-Changer for Knee Care

Traditionally, assessing joint movement required expensive lab equipment and placing physical markers on your body—a process that was both time-consuming and costly. Markerless motion capture changes all that. By simply using your smartphone’s camera, this technology captures and analyzes your movement without any special sensors. This approach makes it much easier and more affordable to collect valuable information about how your knee functions during daily activities. Now, accurate knee health checks are accessible to anyone, anywhere—no special equipment or clinic visits required.

How MAI Motion Works and Why It’s Reliable

So, how does MAI Motion help you assess your knee health? The system uses advanced AI algorithms to analyze a simple video of you performing a movement. It calculates 3D joint angles—like how much your knee and hip are bending and extending—and automatically generates easy-to-read reports. Research has shown that just three sit-to-stand repetitions with MAI Motion are enough to provide results as reliable as longer, more complicated tests. These clinically validated results mean you can trust the assessments without extra effort or time. The technology’s strong repeatability also ensures that you’ll get consistent results every time, making it easy to track your progress over weeks or months.

Step-by-Step Guide: Doing a Sit-to-Stand Test at Home

1. Find a quiet space with good lighting and enough room to move freely. Place your phone on a stable surface about 1.5 to 2 meters away from you, at roughly knee height, so your whole body is in the frame.
2. Wear comfortable, fitted clothing that won’t hide your body shape—this helps the camera pick up your movements clearly.
3. Open the MAI Motion app and follow its on-screen instructions to position yourself correctly.
4. When you’re ready, do three slow and controlled sit-to-stand movements at a steady, comfortable pace.
5. After you finish, review the app’s prompts. You’ll be able to see your joint angle measurements and other important details in seconds.

Following these steps ensures you get a proper and reliable assessment using only your phone camera.

How to Ensure Consistency in Your Self-Assessments

To track your knee health accurately over time, consistency is key. Try to do your self-assessment at the same time of day, with similar lighting, and always position your phone at the same angle and distance. Make a note of small details, like lighting or phone placement, so your setup stays the same each time. There’s no need to do more than the recommended three repetitions; this is enough to gain meaningful data without risking fatigue. Checking in weekly is a great way to see progress and catch any changes in your knee health early on.

Understanding Your Results and Tracking Your Progress

After you complete your test, the app will show you important numbers like your maximum knee bend and hip extension. These measurements help you see how well your knees and hips are moving. A typical, even range of motion is a good sign, while significant differences between your left and right sides or noticeably reduced movement may indicate an issue. The MAI Motion app provides helpful trend graphs, making it easy to track your results over time and spot any patterns or changes. If you notice anything unusual or have concerns about your results, don’t hesitate to consult a healthcare professional.

With MAI Motion , knee health self -assessments are convenient, reliable, and accessible—right from your phone. These quick camera-based checks put you in control, helping you take proactive steps toward stronger, healthier knees. Download the MAI Motion app today and start your guided journey to better knee care.