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http://dx.doi.org/10.21598/JKPNFA.2018.16.2.229

Immediate Effects of Various Contract-Relax Techniques on the Peck Force and Range of Motion of Knee Extension -A Pilot Study-  

Shin, Seung-Sub (Korea Proprioceptive Neuromuscular Facilitation Association in South Seoul Gyeonggi)
Publication Information
PNF and Movement / v.16, no.2, 2018 , pp. 229-238 More about this Journal
Abstract
Purpose: This study aimed to compare the immediate effects of various contract-relax (CR) techniques on the peck force and passive range of motion (ROM) of knee extension. Methods: This study recruited 17 adult males and females who obtained below $90^{\circ}$ in straight leg raising. The subjects randomly performed one of three different CR techniques (direct CR, indirect CR, and modified CR) on the right knee extension four times per day for three days. The subjects' peck force during each CR and their passive knee extension on the hip at a $90^{\circ}$ flexed position before and after each CR were measured. Results: The peck force was significantly higher in the direct and modified CR than in the indirect CR. The ROM in the passive knee extension significantly increased after direct and indirect CR. Comparing between each CR, the passive knee extension range was significantly more improved in the direct and indirect CR than in the modified CR. Conclusion: Direct and indirect CR are more effective than modified CR in the ROM of passive knee extension. The study results suggest that the modified CR did not have the same effect on the ROM of the knee extension as the direct and indirect CR and that further research is needed to recruit more subjects and to determine the effects on different muscles after modified CR.
Keywords
Direct contract-relax; Indirect contract-relax; Modified contract-relax; Range of motion; Straight leg raising;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Sady SP, Wortman M, Blanke D. Flexibility training: ballistic, static or proprioceptive neuromuscular facilitation? Archives of physical medicine and rehabilitation. 1982;63(6):261-263.
2 Sherrington CS. On plastic tonus and proprioceptive reflexes. Quarterly journal of experimental physiology. 1909;2(2):109-156.   DOI
3 Taylor D, Fryer G, McLaughlin P. The effect of cervical spine isometric contract-relax technique on hamstring extensibility. Australasian Chiropractic & Osteopathy. 2003;11(1);21-26.
4 Wellmon RH, Gulick DT, Paterson ML, et al. Validity and reliability of 2 goniometric mobile apps: device, application, and examiner factors. Journal of sport rehabilitation. 2016;25(4);371-379.   DOI
5 Wicke J, Gainey K, Figueroa M. A comparison of self-administered proprioceptive neuromuscular facilitation to static stretching on range of motion and flexibility. The Journal of Strength & Conditioning Research. 2014;28(1):168-172.   DOI
6 Witvrouw E, Danneels L, Asselman P, et al. Muscle flexibility as a risk factor for developing muscle injuries in male professional soccer players. A prospective study. The American Journal of Sports Medicine. 2003;31(1):41-46   DOI
7 Yildirim MS, Ozyurek S, Tosun O, et al. Comparison of effects of static, proprioceptive neuromuscular facilitation and Mulligan stretching on hip flexion range of motion: a randomized controlled trial. Biology of Sport. 2016;33(1):89-95.   DOI
8 Yuktasir B, Kaya F. Investigation into the long-term effects of static and PNF stretching exercises on range of motion and jump performance. Journal of bodywork and movement therapies. 2009;13(1):11-21.   DOI
9 Butterfield TA, Herzog W. Effect of altering starting length and activation timing of muscle on fiber strain and muscle damage. Journal of Applied Physiology. 2006;100(5);1489-1498.   DOI
10 Adler SS, Beckers D, Buck, M. PNF in practice, 4th ed. Hong Kong. Springer. 2014.
11 Cho IW, Park JC, Shin HS. A comparison of different compressive forces on graft materials during alveolar ridge preservation. Journal of periodontal & implant science. 2017;47(1);51-63.   DOI
12 Chow TP, Ng GY. Active, passive and proprioceptive neuromuscular facilitation stretching are comparable in improving the knee flexion range in people with total knee replacement: a randomized controlled trial. Clinical rehabilitation. 2010;24(10):911-918.   DOI
13 Kay AD, Dods S, Blazevich AJ. Acute effects of contract-relax (CR) stretch versus a modified CR technique. European journal of applied physiology. 2016;116(3):611-621.   DOI
14 de Paula Oliveira L, Palucci Vieira LH, Aquino R, et al. Acute effects of active, ballistic, passive and proprioceptive neuromuscular facilitation streching on sprint and vertical jump performance in trained young soccer pPlayers. The Journal of Strength & Conditioning Research. 2017:1(10):1519-44.
15 Feland JB, Marin HN. Effect of submaximal contraction intensity in contract-relax proprioceptive neuromuscular facilitation stretching. British journal of sports medicine. 2004;38(4):18-19.   DOI
16 Flaherty SA. Pain measurement tools for clinical practice and research. Journal of the American Association of Nurse Anesthetists. 1996;64(2):133-140.
17 Hindle K, Whitcomb T, Briggs W, et al. Proprioceptive neuromuscular facilitation (PNF): its mechanisms and effects on range of motion and muscular function. Journal of human kinetics. 2012;31(1):105-113.   DOI
18 Jadav M, Patel D. Comparison of effectiveness of post facilitation stretching and agonist contract-relax technique on tight hamstrings. Indian Journal of Physical Therapy. 2015;2(2):70-75.
19 Kay AD, Husbands-Beasley J, Blazevich AJ. Effects of contract-relax, static stretching, and isometric contractions on muscle-tendon mechanics. Medicine and science in sports and exercise. 2015;47(10);2181-2190.   DOI
20 Khamwong P, Pirunsan U, Paungmali A. A prophylactic effect of proprioceptive neuromuscular facilitation (PNF) stretching on symptoms of muscle damage induced by eccentric exercise of the wrist extensors. Journal of bodywork and movement therapies. 2011;15(4):507-616.   DOI
21 Kuegler P, Wurzer P, Tuca A, et al. Goniometer-apps in hand surgery and their applicability in daily clinical practice. Safety in Health. 2015;1(1);11-15.   DOI
22 Marek SM, Cramer JT, Fincher AL, et al. Acute effects of static and proprioceptive neuromuscular facilitation stretching on muscle strength and power output. Journal of Athletic Training. 2005;40(2):94-104.
23 Kwak DH, Ryu YU. Applying proprioceptive neuromuscular facilitation stretching: optimal contraction intensity to attain the maximum increase in range of motion in young males. Journal of physical therapy science. 2015;27(7):2129-2132.   DOI
24 Levangie PK, Norkin CC. Joint structure and function: a comprehensive analysis, 5th ed. Philadelphia. FA Davis. 2011.
25 Lucas RC, Koslow R. Comparative study of static, dynamic, and proprioceptive neuromuscular facilitation stretching techniques on flexibility. Perceptual and motor skills. 1984;58(2):615-618.   DOI
26 Mitchell UH, Myrer JW, Hopkins JT, et al. Acute stretch perception alteration contributes to the success of the PNF "contract-relax" stretch. Journal of sport rehabilitation. 2007;16(2):85-92.   DOI
27 Mitchell UH, Myrer JW, Hopkins JT, et al. Neurophysiological reflex mechanisms' lack of contribution to the success of PNF stretches. Journal of sport rehabilitation. 2009;18(3):343-357.   DOI
28 O'hora J, Cartwright A, Wade CD, et al. Efficacy of static stretching and proprioceptive neuromuscular facilitation stretch on hamstrings length after a single session. The Journal of Strength & Conditioning Research. 2011;25(6):1586-1591.   DOI
29 Olivo SA, Magee DJ. Electromyographic assessment of the activity of the masticatory using the agonist contract-antagonist relax technique (AC) and contract-relax technique (CR). Manual therapy. 2006;11(2):136-145.   DOI
30 Osternig LR, Robertson RN, Troxel RK, et al. Differential responses to proprioceptive neuromuscular facilitation (PNF) stretch techniques. Medicine and Science in Sports and Exercise. 1990;22(1):106-111.