James Pierce Jr. just TORCHED the 40 with a blazing 4.47 at the NFL Combine. Here are 2 reasons why ⬇️ Two key things that made his sprint elite: 1️⃣ Holding his exhale until his sixth stride. This maximized intra-abdominal pressure, giving him a rock-solid foundation to explode off the line. 2️⃣ Perfect horizontal shin angles. This helped him own his 10-yard split, maximizing ground force and acceleration. And once he hit top speed? Zero tension. Total relaxation. That’s how you stay efficient and FAST. High school guys. College guys. ANYONE trying to drop their 40 time, take notes. Speed is a skill. It can be trained. #NFLCombine #40YardDash #SpeedTraining #FootballSpeed #NFLDraft #SprintMechanics #SpeedKills #AthletePerformance #FootballTraining #JamesPierceJr