Effects Of Resting Vs. Continuous Blood-flow ... - Frontiers

1. Clients or post-operative patients, high load and high strength workouts might not be scientifically suitable. It has actually been used in the health club setting for some time however it is gaining 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 total venous occlusion. The patient is then asked to carry out resistance workouts at a low intensity of 20-30% of 1 repeating max (1RM), with high repeatings per set (15-30) and brief rest intervals in between sets (30 seconds) Understanding the Physiology of Muscle Hypertrophy. [modify modify source] Muscle hypertrophy is the boost in size of the muscle as well as a boost of the protein material within the fibers. Muscle stress and metabolic stress are the two main factors responsible for muscle hypertrophy. The activation of myogenic stem cells and the raised anabolic hormones result in protein metabolic process and as such muscle hypertrophy can occur. Insulin-like growth factor and growth hormonal agent are responsible for increased collagen synthesis after exercise and help muscle recovery. Growth hormone itself does not straight cause muscle hypertrophy but it aids muscle healing and consequently potentially helps with the muscle strengthening procedure. The accumulation of lactate and hydrogen ions (eg in hypoxic training) more increases the release of development hormone. Myostatin controls and inhibits cell growth in muscle tissue. Resistance training results in the compression of blood vessels within the muscles being trained. This results in an increase in anaerobic lactic metabolism and the production of lactate. When there is blood pooling and a build-up of metabolites cell swelling takes place. This swelling within the cells causes an anabolic reaction and results in muscle hypertrophy. The cell swelling may really cause mechanical stress which will then trigger the myogenic stem cells as discussed above. The cuff is put proximally to the muscle being workout and low strength workouts can then be carried out.

2. Because the outflow of blood is limited utilizing the cuff capillary blood that has a low oxygen material gathers and there is a boost in protons and lactic acid. The very same physiological adaptations to the muscle (eg release of hormonal agents, hypoxia and cell swelling) will happen throughout the BFR training and low strength workout as would take place with high intensity exercise. ( 1) Low intensity BFR (LI-BFR) results in a boost in the water content of the muscle cells (cell swelling). It likewise speeds up the recruitment of fast-twitch muscle fibers. It is also hypothesized that once the cuff is eliminated a hyperemia (excess of blood in the capillary) will form and this will trigger further cell swelling. These boosts resembled gains acquired as an outcome of high-intensity exercise without BFR A research study comparing (1) high intensity, (2) low strength, (3) high and low strength with BFR and (4) low strength with BFR. While all 4 exercise routines produced increases in torque, muscle activations and muscle endurance over a 6 week period - the high strength (group 1) and BFR (groups 3 and 4) produced the best impact size and were comparable to each other.