MUSCLE INJURY RESPONSE OF TWO DIFFERENT ECCENTRIC HAMSTRING EXERCISES

Abstract

Aim: This study was aimed to examine the effect of two different eccentric hamstring exercises on muscle damage in male soccer players. Materials and methods. Subjects were randomly divided into two groups, one group doing nordic hamstring exercise (NHE) and the other doing sliding leg curl (SLC). Lactate values were measured at the end of each test. After the first day test, the same test protocol was applied on the second exercise day with a 5-day break. Blood samples were taken from the subjects before and at the 3rd, 24th and 48th hours after exercise. The t test was used for comparisons between and within groups. Results. When the muscle damage responses were examined, it was seen that there was no statistically significant difference in creatine kinase (CK) and aspartate aminotransferase (AST) values between the groups. When the muscle enzyme pre-test values of the NHE group were compared at the 3rd, 24th and 48th hours after exercise, a significant difference was found in the CK values at the 3rd and 48th hours after exercise (p < 0.05). There was a significant difference between CK and lactate dehyd­rogenase (LDH) pre-test and 48th hour values in the SLC group (p < 0.05). There was no significant diffe­rence between all AST and LDH values (p > 0.05). Conclusion. The results of the current study indicate that muscle enzyme values continue to increase at 3, 24 and 48 hours after exercise. It was observed that SLC exercises cause more muscle damage in soccer players than NHE.