Critical Power: An Important Fatigue Threshold in Exercise Physiology.
[2023-02-20 15:06:47]
1 Kansas State University, Manhattan, Kansas State Department of Physiology; 2 Chatham University, Physical Education and Sports Science University, Exeter University, St. Luke Campus, Sports Health Science 3; 4 Leeds University Biology Science Department, Leeds, UK; Torrance, California - UCLA Medical Center Los Angeles Biomedical Research Center 5 and Rehabilitation Clinical Trial Center
: The hyperbolic form of the strength - duration relationship is strict and heterogeneous, the form of movement and individual muscle / muscle groups are highly conserved. In the case of loops and other aspects, this relationship is resolved to two parameters, the power asymptote (Critical Power [CP]) and so-called W '(the work that works beyond CP), which are jointly predicted by the CP . The allowable operation time mentioned above. Importantly, the concept of CP integrates the physiological characteristics of sentinel - respiration, metabolism, contraction - into a coherent framework with highly scientific and practical usefulness. Instead of setting the exercise intensity for the CP, calibrate the equivalent exercise intensity for metabolic remote parameters (eg lactate threshold or VO 2 max), predict the lifetime of the exercise if it is greater than CP. The time until W 'is consumed reaches VO 2 max and shows intolerance. The CP separates the range of exercise intensity and therefore can be regarded as "fatigue threshold", and in the exercise intensity range, the physiological response of the movement can be stabilized (CP). Therefore, the concept of CP enables the following important insights: 1) the main location of fatigue development in different exercise intensity (central nervous system), and 2) the mechanism of cardiovascular and metabolic control, and O 2 Those adjustments due to factors such as delivery. In fact, the concept of CP has a very potential application value in optimizing exercise training programs and performance and improving the quality of life of individuals suffering from chronic illness.
The Kuhn paradigm shift by Karl Popper, the scientific revolution, and the critical evaluation of 'normal' science are very important for exercising physiology. Advances in new knowledge are limited by the support of journal attributes to support counterfeitable tenants before adopting more important scientific methods in the field of basic knowledge, applied physiology, clinical exercise physiology. Thus, at the "normal science" stage of Kuhn, exercise physiology will stagnate, and based on Popper's view this is certainly a result of "I am sorry".
Exercise physiology course includes biology, chemistry and applied science. The course chosen for this major course is designed to be familiar with human anatomy, human physiology and exercise physiology. Muscle and bone anatomy, muscle contraction molecule and cellular foundation, fuel utilization, kinematic mechanics neurophysiology, physiological response of the whole body (respiration, blood flow, endocrine secretion, etc.), fatigue and fatigue, muscle and body training Guidance included. Physiology of specific sports and activities, disability of physiology, and influence of disability and disease. In order to acquire a degree in sports physiology, not only a complete curriculum but also a minimum internship experience and internship are necessary.
Sports education and medicine of the first real sports physiology textbook, Dr. R. Tait McKenzie, was published in 1910. A laboratory specializing in sports physiology was founded in the 20th century. These include the Harvard Fatigue Research Institute which opened in 1927 and the Illinois University Sports Fitness Laboratory which opened in 1944. These schools have discussed a lot about topics such as fatigue, cardiovascular changes during exercise, oxygen inhalation, and effects. Training In 1948, Journal of Applied Physiology began publishing. The journal published a peer-reviewed research on exercise physiology still