HST is a weight training program geared for muscle hypertrophy that started gaining popularity a few years ago.
What is HST?
HST stands for Hypertrophy Specific Training. It was developed off of scientific studies on mechanisms that cause muscle hypertrophy(muscle size increase).
Major Principles of HST:
Based on their research, they developed these major guidelines for their workout program.
Mechanical Load: In order to have muscle hypertrophy you need mechanical load (lifting weights).
Progressive Load: In order to continue to make muscle gains, you need to increase the weights slowly long term.
Progressive Rep range change: Every 2 weeks you should progressively change your workout rep range. Ex. 12 reps, 10, 8,6. so you can keep up with the weight increases.
Chronic vs Acute Stimuli: HST advocates hitting a muscle part more than once a week. Many of the bodies reactions to weight training such as protein synthesis, end 48 hours after a workout.
Strategic Deconditioning: Plateaus are inevitable with the principle of progressive overload. To get around this, there must be phase where you lower the weight. Strategic deconditioning allows the muscles to take one 1 step back to eventually get 2 steps ahead.
Low volume: HST believes in low volume training as after more than 1 or 2 sets, it has little effect on hypertrophy. Since HST advocates hitting the bodypart more than once a week, you will hit each bodypart for multiple sets per week.
Compound excercises: HST workouts are geared around compound excercises, as it is shown to be a better stimulus for muscle hypertrophy.
HST Workout:
HST routines are full body workouts done 3 times a week. You will need 2 days between workout days, for example, monday, wednesday, and friday. You will do usually 1 to 2 sets per excercise and 1 - 2 excercises are done for each muscle part. Starting at the rep range of 15 reps, every week you will change the rep range and/or weight load you use on your sets from higher to lower, which follows the basic HST principles on progressive overload and progressive rep range changes. For example on week 1 you will be doing 15 reps of a light weight. At about week 5 you may be doing 6 reps at a heavy weight.
After a few weeks you will do Strategic Deconditioning for a week, to give your muscles a break. During strategic deconditioning you continue to do the low rep range, but you use a lighter weight. Even though you may be tempted, do not increase your reps to go to failure with the lighter weight. THe following week, you will then start the same workout cycle all over again.