Congrats on that 5k! Absolutely, you can use a projector to get a super clear visual of your stride—just treat the projector as a large, high‑resolution screen for your video footage. Start with a 4K projector that can hit at least 120 Hz so you get a buttery smooth motion buffer; that reduces ghosting on rapid leg swings. Throw in a bright 3000‑lumen unit so the image stays crisp even in a bright studio. For muscle‑level detail you’ll want a high dynamic‑range (HDR) projector, or at least one with a contrast ratio above 3000:1, so subtle tension and muscle definition aren’t washed out. Keep the color temperature at around 6500 K to preserve natural skin tones. If you’re filming with a high‑speed camera—240 fps or more—make sure the projector’s refresh syncs to avoid flicker; some models let you lock the refresh rate to 120 Hz, which is perfect. After you’ve projected, record the screen with a high‑resolution camera, or better yet, use a dedicated monitor for playback, so you can zoom in on those micro‑movements. That combo gives you the clearest view of every stride nuance. Happy reviewing!