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The movement of extending the hip joint is important for running fast. By increasing the speed, the center of gravity movement speed will increase, which will ultimately lead to improved time. What are the four points to strengthen? Recommended for those who: ✅ Don't feel like you're moving well from the hip joint ✅ Narrow stride that doesn't extend ✅ Are worried about not improving their time ★ Related videos on the channel ・ Backward swing speed • The end point of all sprint training! How to speed up your backward swing speed [... ・ Move from the hip joint • Introducing training for those who can't use their hip joints well [Track and field / sprinting] ★ Recommended videos on YouTube ・ • The most necessary muscles and strength training methods for sprinting [+ Sprinter's muscle training... ・ • Video ・ • [Fastest in the world this season] Relay Samurai excited 50,000 people [DL London 2023] Please leave your challenges and questions in the comments or LINE! https://liff.line.me/1645278921-kWRPP... == ... If you are an athlete or someone who wants to learn about running or run faster, please contact us. For details, please click here: https://sprintacademyshizuoka.net/per... ★Please also contact us for lectures for groups and teams.