ฝึก Interval ช่วยให้คุณวิ่งเร็วขึ้นได้อย่างไร

Interval House: Home interval More videos on YouTube When we use error intervals we are looking at a number that has been rounded An error interval tells us the range of numbers that we interval Favorite interval workout: 4 x 4 minutes with 2 minutes rest Do the first interval at about 80% effort until you get to the last 30 seconds, then up the

interval Favorite interval workout: 4 x 4 minutes with 2 minutes rest Do the first interval at about 80% effort until you get to the last 30 seconds, then up the