WL Analysis is a cross-platform video analysis software for strength athletes and coaches. It allows you to store and review video recordings. The videos can be organized by tags. They are not copied to the app storage by default. This way the app uses less memory, but if the videos get removed, renamed or moved to another directory they won't be accessible anymore. You can change that behaviour in the settings menu.
The app works with any camera setup. If you want to get the most accurate results:
BETA: Now it's possible to track the barbell in real time.
The app tracks barbell plate to find it's trajectory. The plate is automatically detected by the app. In most cases it should be properly detected, but you can encounter following scenarios:
Remember that when you cross the plate during recording, the app loses track of the plate! Make sure that you don't step between the camera and the plate or trim the video before importing it. Low contrast between the plate and it's surroundings, poor lighting or video blur are also factors that can decrease tracking accuracy.
Graphs can be used to control video playback:
You can set a parameter for both axes (left and right). To configure the graphs content, click on the cog icon. You can change the active axis there. After selecting the active axis you can change a parameter for that axis. To hide the right axis click on the active parameter. You can also choose whether the parameter is calculated from the movement in both directions or only from one (vertical or horizontal). Average / Min / Max values below the graph are calculated from the active axis parameter. By clicking on the Min / Max value you can pause the recording at the corresponding video frame.
The app uses the information about the trajectory to compute the most important kinematic parameters about the lift. Plate diameter is used for calibration. If you use non standard plates (diameter different than 45 cm) then make sure to type them during video import.
Average values are calculated from the currently looped video fragment (only the concentric portion of the lift).
If you have a slowed down, high framerate video, type in the fps in the lift editing menu
The app needs to know barbell weight to compute force and power data, make sure to enter it during the video import.
The parameters can be exported to a .csv file. You can specify which parameters get exported from the settings menu.
The following features can be used to help with the technique assessment
There are currently two comparison modes: side by side or overlay (in beta)
You can compare as many videos as your hardware allows. If your device has issues with video comparison, try recording in lower resolution / framerate. Compared videos should preferably be taken with the same camera parameters. The videos will be synchronized to the start of the lift.
Videos can be exported to a .mp4 file.
If you wish to include additional info about a lift, such as barbell weight, date or tags in the exported video then select the preferred configuration in the settings menu.
If you are a coach and would like to prepare a video feedback for your athletes, you can use the screen recording feature.
You can view the exported videos by going to the appriopiate tab from the home screen options.
If you encounter some issues or have any questions about the app then feel free to contact me via email: email@example.com
Finally, if you enjoy using the software please consider rating it on the app store.