Effects Of Blood Flow Restriction Training On Aerobic Capaci ...

1. Patients or post-operative clients, high load and high intensity workouts might not be clinically appropriate. Blood Circulation Limitation (BFR) training is a strategy that combines low strength exercise with blood flow occlusion that produces comparable results to high intensity training. It has been utilized in the fitness center setting for a long time however it is gaining popularity in scientific settings. Blood Flow Constraint (BFR) Training [edit modify source] BFR training was at first established in the 1960's in Japan and called KAATSU training. It can be applied to either the upper or lower limb. The cuff is then pumped up to a specific pressure with the aim of getting partial arterial and complete venous occlusion. The patient is then asked to perform resistance workouts at a low intensity of 20-30% of 1 repeating max (1RM), with high repeatings per set (15-30) and short rest intervals in between sets (30 seconds) Comprehending the Physiology of Muscle Hypertrophy. [edit edit source] Muscle hypertrophy is the boost in diameter of the muscle as well as a boost of the protein material within the fibres. Muscle tension and metabolic tension are the 2 primary factors responsible for muscle hypertrophy. Mechanical Stress & Metabolic Tension [modify modify source] When a muscle is placed under mechanical stress, the concentration of anabolic hormonal agent levels increase. The activation of myogenic stem cells and the elevated anabolic hormonal agents lead to protein metabolism and as such muscle hypertrophy can occur. Growth hormone itself does not directly cause muscle hypertrophy however it helps muscle healing and thus possibly helps with the muscle enhancing procedure. The build-up of lactate and hydrogen ions (eg in hypoxic training) more boosts the release of growth hormonal agent. Myostatin controls and prevents cell development in muscle tissue. It needs to be basically closed down for muscle hypertrophy to take place. Resistance training results in the compression of capillary within the muscles being trained. This causes an hypoxic environment due to a reduction in oxygen shipment to the muscle. When there is blood pooling and an accumulation of metabolites cell swelling takes place. This swelling within the cells causes an anabolic reaction and results in muscle hypertrophy. The cuff is placed proximally to the muscle being exercise and low strength exercises can then be performed. Due to the fact that the outflow of blood is restricted using the cuff capillary blood that has a low oxygen content collects and there is an increase in protons and lactic acid. The same physiological adjustments to the muscle (eg release of hormonal agents, hypoxia and cell swelling) will happen throughout the BFR training and low intensity exercise as would accompany high strength workout. ( 1) Low intensity BFR (LI-BFR) results in a boost in the water material of the muscle cells (cell swelling). It likewise speeds up the recruitment of fast-twitch muscle fibres. It is also hypothesized that as soon as the cuff is gotten rid of a hyperemia (excess of blood in the capillary) will form and this will trigger further cell swelling. These boosts resembled gains gotten as a result of high-intensity workout without BFR A study comparing (1) high intensity, (2) low strength, (3) high and low intensity with BFR and (4) low intensity with BFR. While all 4

2. exercise routines 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 greatest effect size and were equivalent to each other.