13th FIEP European Congress and 29th FIEP World Congress, İstanbul, Türkiye, 25 - 28 Ekim 2018, ss.55
The purpose of this study was to determine the effects of acute anterior and posterior capsular proprioceptive neuromuscular facilitation (PNF) stretching that were carried out in shoulder region on throwing ball speed, strength and range of motion (ROM). Thirty healthy male (age,22.43±1.48 years) voluntarily participated in this study. All participants were sedanters university students. The participants were divided two groups randomly: Anterior PNF-group (A-PNF,n=15) and posterior PNF-group (P-PNF,n=15). A pre-test/post-test randomized groups design was used. Anthropometric characteristics (body
height and mass), as well as active shoulder ROM (flexion, abduction, internal-external rotation, using a plastic Baseline goniometer), strength (shoulder flexion, abduction, internalexternal rotations) and maximal throwing ball speed (MTS, meters per second measured via a radar gun) were tested. On the first measurement, all tests were performed on dominant arm. On the second measurement, the dominant arm shoulder were stretched using assisted contract-relax PNF stretching exercise (3 repetitions, 3-second static, 3-second isometric; 20-second rest) separately to anterior capsule for A-PNF and
posterior capsule for P-PNF groups. After the stretching, all tests were repeated. A fully randomized repeated-measures ANCOVA with pretest scores as a covariate was used to detect differences between groups across time. There were no significant differences between groups in age, height, weight (p> 0.05). The mixed model ANCOVAs did not reveal a statistically significant group time interaction for all variables (p > 0.05). There was a significant main effect for time for both stretching protocols (p < 0.05). The results indicate that both stretching protocols had not a significant effect on improving throwing
ball speed and strength or ROM in shoulder region however performing posterior capsular PNF stretching increased all performance variables without create significant difference
between the two group. Further study is needed to determine the long-term effects of the anterior and posterior capsular PNF stretching on performance factors in different population.