TimePrediction

Making hurdling movement visible — a learning tool for PE classes. "Where do I take off when I clear a hurdle?" "How does my run change if I land in a different spot?" "How is my movement different from my classmates'?" TimePrediction is an iOS app that supports hurdling lessons in PE classes. Using video, you can check your takeoff and landing positions as you clear a hurdle, measure the distance between them, and estimate your hurdle race time based on research data. It was developed as a learning tool that helps students see their own movement objectively, compare it with classmates, and try new ways of moving. BACKGROUND AND SCIENTIFIC BASIS Hurdling lessons often emphasize clearing the hurdle as low and as quickly as possible. However, research has found that the horizontal distance from takeoff to landing is more closely related to race time than the maximum height the body reaches over the hurdle. Students with faster times tended to cover a longer distance from takeoff to landing. This suggests the value of looking at movement in terms of "where you take off and where you land," rather than focusing only on clearing the hurdle low. PE lessons built on this research have also reported positive changes in students' skills, knowledge, and engagement. TimePrediction turns these sports science findings into a tool that is easy to use in class. KEY FEATURES 1. Measure takeoff-to-landing distance from video Mark the takeoff and landing positions on a video of your hurdle clearance to measure the horizontal distance between them. Seeing your movement on video and in numbers helps you understand it. 2. Time prediction based on research data The app estimates your hurdle race time from the measured distance, using an equation derived from research. The prediction is not a guarantee of your actual time, but a reference for thinking about how movement relates to performance. By default, the app uses an equation that estimates 50m hurdle times over five 76cm hurdles; you can adjust this equation yourself later as needed. Questions like "How does my predicted time change if I land somewhere else?" encourage inquiry-based learning. 3. Save and compare results Save your measurements and compare them with past results to see how your movement changes over time. Use them to reflect, share ideas with classmates, and decide what to try next. HOW TO USE Step 1: Record a video Film the hurdle clearance from directly to the side. Slow-motion recording makes takeoff and landing easier to see. Step 2: Mark takeoff and landing Play and pause the video, and mark the takeoff and landing positions on the screen. Step 3: Check your results Review your takeoff-to-landing distance and predicted time, then think about the characteristics of your movement and what to try next. USING THE APP IN PE CLASSES - Know your movement: Check how you clear the hurdle using video and measurements. - Compare with classmates: Find similarities and differences, and discuss better ways to clear the hurdle. - Experiment: Focus on your takeoff and landing positions and see what changes. - Reflect: Use your results to organize changes and new insights over the unit. Rather than simply judging times as good or bad, the app values a learning process of observing, noticing, thinking, and trying. PLEASE NOTE Predicted times are statistical estimates based on research data. They do not guarantee actual running times or that any specific movement will improve your time. Hurdling skill is not determined by takeoff-to-landing distance alone. Please use the app as a reference for learning, while also considering running speed, rhythm, hurdle height, and physical characteristics. APP OVERVIEW For: Students in PE classes, PE teachers, and anyone involved in teaching PE Platforms: iOS / iPadOS Concept: Mitsuo Otsuka (Nippon Sport Science University) Provided by: Okada Denshi Bringing sports science into PE learning.