Daftar Isi:
  • Background: Flexibility is a component or circuit in everyday activities. Flexibility is joint mobility and muscle elasticity which can reach a maximum of movement of the joints of the various positions Many ways or methods of doing techniques, stretching one of them is contract relax stretching. Contract relax stretching is one of the stretching techniques Proprioceptive Neuromuscular Facilitation (PNF). So a technique that begins with exercise therapy contraction resisted isotonic of the muscle spasms followed by relaxation. Methods: The study was conducted with the approach of the kinds of experiments with the approach of pre and post test design profit determine the effect of contractstretchingrelax, themuscles hamstring with a total sample of 27 respondents to the method of taking a purposive sampling of futsal players in SMK 1 Jenangan Ponorogo. Results: The normality test Shapiro-Wilk for the measurement ofdenag the sit and reach get results p> 0.05, which means the data were normally distributed, then tested further analysis of data using paired t test with results tailed sig.2 0000 Conclusion: The test results showed the effect of contract relax stretching to the flexibility ofmuscles the hamstring in futsal players SMK 1 Jenangan Ponorogo.