5. Conclusions
STRETCHES
Despite the fact that the use of FR to obtain more flexibility for hamstrings muscles is growing in the field of sports and rehabilitation, the results of the present study suggest that the gain in the flexibility of the hamstrings is greater if PNF-type stretches are used instead of FR. Despite the results, the use of FR may be beneficial for other processes such as a reduction in muscle tension, blood flow activation and improvements in muscle recovery.