Patients or post-operative patients, high load and high strength workouts may not be scientifically proper.
It has been utilized in the gym setting for some time but it is acquiring appeal in medical settings. BFR training was at first established in the 1960's in Japan and understood as KAATSU training.
It can be used to either the upper or lower limb. The cuff is then pumped up to a specific pressure with the objective of getting partial arterial and complete venous occlusion. Muscle hypertrophy is the increase in size of the muscle as well as an increase of the protein content within the fibers.
Muscle tension and metabolic stress are the two main elements responsible for muscle hypertrophy. The activation of myogenic stem cells and the raised anabolic hormonal agents result in protein metabolic process and as such muscle hypertrophy can take place.
Development hormone itself does not straight cause muscle hypertrophy but it aids muscle healing and therefore potentially helps with the muscle strengthening procedure. The build-up of lactate and hydrogen ions (eg in hypoxic training) additional boosts the release of development hormone.
Myostatin controls and inhibits cell development in muscle tissue. It needs to be basically shut down for muscle hypertrophy to occur. Resistance training results in the compression of blood vessels within the muscles being trained. This causes an hypoxic environment due to a decrease in oxygen delivery to the muscle.
This results in an increase in anaerobic lactic metabolism and the production of lactate. When there is blood pooling and an accumulation of metabolites cell swelling occurs. This swelling within the cells triggers an anabolic reaction and leads to muscle hypertrophy. The cell swelling may really trigger mechanical stress which will then trigger the myogenic stem cells as talked about above.
The cuff is put proximally to the muscle being exercise and low strength exercises can then be performed. Because the outflow of blood is limited using the cuff capillary blood that has a low oxygen content gathers and there is a boost in protons and lactic acid. The exact same physiological adjustments to the muscle (eg release of hormones, hypoxia and cell swelling) will occur during the BFR training and low intensity workout as would accompany high intensity exercise.
( 1) Low strength BFR (LI-BFR) leads to a boost in the water material of the muscle cells (cell swelling). It also accelerates the recruitment of fast-twitch muscle fibres. It is likewise hypothesized that as soon as the cuff is removed a hyperemia (excess of blood in the capillary) will form and this will trigger additional cell swelling.
These increases were similar to gains gotten as a result of high-intensity exercise without BFR A study comparing (1) high intensity, (2) low strength, (3) low and high intensity with BFR and (4) low strength with BFR. While all 4 exercise programs produced boosts in torque, muscle activations and muscle endurance over a 6 week duration - the high strength (group 1) and BFR (groups 3 and 4) produced the best result size and were comparable to each other.