Learning Kinovea

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School

Brigham Young University, Idaho *

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415

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Health Science

Date

Feb 20, 2024

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docx

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Uploaded by MOls20003

HRHP 415 Biomechanics assignment: Learning Kinovea (Intro to Kinovea) (10 points) The purpose of this assignment is to help you become more familiar with Kinovea. We will be using this software repeatedly throughout the semester, and many of you will find it helpful to use this software for your research projects. For this assignment, complete the required parts, and copy and paste your results/images into this document. Please submit your assignment as a word document. ● Part 1 : Downloading the Software: ○ See here for Windows: Go to this link: https://www.kinovea.org/ and download the software by clicking this button: ○ See here for Mac : Go to this link: https://vdi.byui.edu Access Kinovea by clicking on this option: Enter your BYU-I username and password (the same you would use for Canvas). Click on “BYUI Software” Once you see Window’s desktop, search for “Kinovea” from the “start” menu.

● Part 2 : Opening files into Kinovea: ○ See here for Windows: In canvas…find video, and download the video to your computer. Upload videos into Kinovea by clicking File>Open Video File>Select Video ○ See here fore Mac : Open Canvas on the remotely controlled desktop ( not your Mac desktop ).Find video, and download the video to the proxy desktop. Upload videos into Kinovea by clicking File>Open Video File>Select Video. Now that you are able to upload videos into Kineovea, we can begin to analyze the video with a variety of tools. In order to do this, ensure that you download each of the videos posted in Canvas. If at anytime you feel you need additional help, you can access the extra resources available in Canvas (Kinovea for dummies, etc.). I would suggest getting familiar with the toolbar (as shown below). This will include the majority of the tools you will need for this assignment and for future data analysis through this semester. ● Part 3 : Using the video titled: “Walking on a Treadmill” complete the following activities: A. Crop the video: Crop the video to one gait cycle. Make sure this is the first gait cycle for the right leg that appears in the video. This is done by clicking the highlighted working zone buttons below. The speed (also highlighted) will help you make it more accurate as you slow it down. B. Calibrate & Set Frame Rate: Calibrating the video will help Kinovea convert your media pixels to real world units. For this project, we used a camera shooting at 120 frames per second. Click on the video tab on the top menu. Next select ‘Configure video timing.’ You will see something like the image below pop up.

This is where you type in your appropriate frames per second (120 in both places) and hit ‘ Apply’ . C. Find the maximum knee flexion: Slow your video down to find the point of maximum knee flexion during the swing phase (between the hamstring and the calf muscles; inside angle, when the foot is not in contact with the treadmill). Using the angle tool, place the middle dot on the knee marker, the top dot (associated with the dotted line) on the thigh marker and lower dot (associated with the solid line) on the lateral malleolus marker. Post the screenshot of the maximum knee flexion angle found below . (2 points) D. Calibrate Distance: The distance of the treadmill belt is 1.2 meters. Using the line tool, draw a line along the length of the belt (just the belt, not the treadmill). Right click and choose “Calibrate…..” Apply your real measurement with the correct units (1.2 m). Post your screenshot with the correct distance below. (2 points) E. Tracking Paths: (Make sure your calibrated distance and frame rate is still set based on the steps above). Select the Move tool (looks like a right hand). At the start of the gait cycle, right click on the subject’s knee marker. Many options will pop up. Select “Track path.” Two rectangles will show up on the screen. Move the rectangles so that the cross marker (in the middle of the small rectangle) is aligned on the middle of the knee marker. Move the video frame by frame using the ‘advance forward 1 frame’ button (just right of the play button) to track the knee marker through one gait cycle (heel strike to heel strike). Make sure the tracked path (cross marker) does not move off the knee marker as you move frame by frame through the gait cycle. If it does, correct the position of the tracked cross marker for that frame. Once the entire path is tracked, right-click on

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