If you sit most of the day, you may have weak glutes and hamstrings narrow. Use this program to activate the gluteal muscles to make your buttocks burn during a workout. To maximize the proper involvement in the program, follow this basic procedure and activate the buttocks as the first part of your warm-up before workouts or after long sitting.
Interval training is popular among athletes ever since the birth of fitness. They combine a short phase of intensive exercise on speed and long recovery phase, repeated during exercise. An early form of interval training - fartlek ("speed play") – was incorrect; the runner just increases and decreases the tempo at will.
Probably the majority of fans and athletes hear about this system of training as "crossfit". This system of training consists of different exercises, taken from athletics, weightlifting, gymnastics, and a variety of cardio load.