Document Type : Original Article
Researcher
Allameh Tabatabaei Univercity
Ministerial Ethics Committee
Introduction: According to research reports, blind people consume more energy for simple activities like walking compared to sighted people. It can be said that the decrease in mechanical efficiency combined with the low level of physical fitness increases their fatigue. Due to the fact that so far there has been no research on the effect of fatigue on the blind, and also a comparison of some essential factors of physical fitness such as balance and strength, as well as the function of the lower limb and its range of motion during jumping and landing between two groups of congenitally blind and Acquisition has not been done, it adds to the importance of this research. Research method: The current research is prospective and semi-experimental. For this purpose, 10 congenital totally blind students and 10 acquired totally blind students are selected from one of the schools in 1403. To perform the fatigue instruction, the subjects perform the sit-up movement from the chair while the hands are placed on the chest. In the first session, people perform the tests under normal conditions and without fatigue, and in the second session, which is held 48 hours later, the subjects perform the fatigue instructions, and after that, balance tests (Romberg and Sharpendromberg), motor performance (TUG and FRT) ) and the strength of the lower limb (with a hand-held dynamometer HHD) and measure the range of motion of the lower limb. The Borg questionnaire is used to know the degree of hunger intensity for both groups. After data collection, descriptive and analytical statistics (independent and dependent t-tests) are used with SPSS vol.24 software.