Exercise physiology loss of integrity to the blood brain barrier. Hyperthermia also can lower cerebral blood flow, and raise brain temperature. Researchers once attributed fatigue to a build-up of lactic acid in muscles. However, this is no longer believed. Rather, lactate may stop muscle fatigue by keeping muscles fully responding to nerve signals. The available oxygen and energy supply, and disturbances of muscle ion homeostasis are the main factor determining exercise performance, at least during brief very intense exercise. Each muscle contraction involves an action potential that activates voltage sensors, and so releases Ca ions from the muscle fibre’s sarcoplasmic reticulum. The
Neeraj Mehta task. A person with more muscle should be more flexible than one who is having less muscle mass. The human body muscle can stretch up to 30% of their length, but the connective tissues that can stretch up to just 4-5%. While lifting weights, and doing repetitions, one usually applies a lot of pressure on the connective tissues and the joints, leading to stiffness or strains causing injury. Exercise should keep in mind proper alignment of muscles and joints, and the availability of oxygen for the right effect, like four wheels of a car that need to be aligned well