10k PR Attempt 🔥 Long slow miles are great for marathon training but sometimes speed is what you need! In this video we outline the benefits of over-speed training, how caffeine can impact performance and tips on fueling for hard efforts. Find the full video on our YouTube Channel 🚁 Justin Tank #TrollTraining #TrollTrain #Troll #marathon #running #trackworkout #PersonalTrainer #Trainer #Fitness #Goals #Safe #Intelligent #Effective #Professional #Athlete #Motocross #Moto #MX #SX