코어운동이 남자고등학교 배구선수들의 SEBT수행력 및 하지의 기능적 운동기능에 미치는 영향

정유환 조선대학교 교육대학원 2019 국내석사

ABSTRACT The Effect of Core Exercise on SEBT Performance and Lower Extremity Function of Volleyball Players in Male High School Jung, Yoo-Hwan Advisor : Prof. Song, Chae Hoon Ph.D. Department on Physical Education Graduate School of Education, Chosun University In this study, a 12-week core exercise was conducted for male high school volleyball players to determine the impact on SEBT performance and lower limb functional mobility. First, in the change of SEBT performance before and after the core exercise, the exercise group showed a statistically significant difference on the right and left sides(p<.001). Second, there was a statistically significant difference between the sidestep (p<001) and the vertical jumping ability (p<.001) in the change of the functional movement of the lower limb before and after the core movement. The core exercise in this study has a positive effect on the performance of SEBT and the functional movement of the lower limb. This suggests that the core exercise has helped improve the performance of the SEBT and the muscle function of the lower limb by strengthening the lumbar, knee and femoral muscles, and the continuous core exercise can be expected to improve some of the performance and stability in the field. However, it is difficult to expect a complete improvement in performance by improving balance and functional movements of the lower limb, but if the kinetic analysis, functional analysis, motor psychology and physiological analysis are performed at the same time, it is possible to clearly analyze the direct effect of core exercise and the improvement of performance. Akuthota V & Nadler SF(2004). Core Strengthening, Archives of Physical Medicine and Rehabilitation, 85(1), 86-92. Andrews JR, Dugas JR, Hackel JG, Reinold MM, & Wilk KE(2004). The thrower's Exostosis Pathophysiology and Management, Techniques in Shoulder & Elbow Surgery, 5(1), 44-50. Bayios, I. A., Bergels, N. K., Apostolidis, N. G., Noutsos, K. S., Koskolou, M. D.(2006). Anthropometric, body composition and somatotype differences of Greek elite female basketball, volleyball and handball players. J Sports Med Phys Fitness., 46(2), 271-280. Bouisset S(1991). Relationship Between Postural Support and Intentional Movement Biomechanical Approach. Archives Internationales de Physiologie, de Biochimie et de Biophysique, 99(5), 77-92. Brill PW(2002). The Core Program. 1st ed. New York Bmantam Books, 1-231. Brotzman SB & Manske RC(2011). Clinical Orthopaedic Rehabilitaion: An Evidence-Based Approach. 3rd ed., Philadelphia: Elsevier Mosby. Cohen H, Blatchly CA & Combash LL(1993). A study of the clinical test of sensory in teraction and balance. Physical Therapy, 73, 346-354. Earl JE & Hertel J(2011). Lower-extremity muscle activation during the star excursion balance tests. Journal of Sport Rehabilitation, 10, 93-104. Ebenbichler GR, Oddsson LI, Kollmitzer J, & Erim Z(2011). Sensory-Motor Control of The Lower Back: Implications for Rehabilitation. Medicine & Science in Sports & Exercise, 33(11), 1889-1898. Fabio RPD(1995). Sensitivity and specity platform posturo graphy for identifying patients with bestibular dysfunction. Phys Ther, 75, 290-30. Filipa A1, Byrnes R, Paterno MV, Myer GD, & Hewett TE(2010). Neuromuscular training improves performance on the star excursion balance test in young female athletes. Journal of Orthopedic Sports Physical Therapy, 40(9), 551-8. Gribble PA, Hertel J, & Plisky P(2012). Using the Star Excursion Balance Test to Assess Dynamic Postural-Control Deficits and Outcomes in Lower Extremity Injury: A Literature and Systematic Review. Journal of Athletic Training, 47(3), 339-357. Hale SA, Hertel J, & Olmsted-Kramer LC(2007). The effect of a 4-week comprehensive rehabilitation program on postural control and lower extremity function in individuals with chronic ankle instability. Journal of Orthopaedic and Sports Physical Therapy, 37(6), 303-311. Karlsson A, Andersson A, Lundstroem K, & Ridderstraale Y(1996). Influence of marinade pH on muscle fibre area and water holding capacity of raw porcine Longissimus dorsi muscle. Fleisch wirtschaft, 76(5), 552-554. Kibler WB(1998). The Role of the Scapula in Athletic shoulder function. Amercan Journal of Sports Medicine, 26(2), 325-337. Kovacs EJ, Birmingham TB, Forwell L, & Litchfield RB(2004). Effects of training on postural control in figure skaters : a randomized controlled trial of neuromuscular versus basic off-ice training programs. Clinical Journal of Sport Medicine, 14(4), 215-224. Kraska, J. M., Ramsey, M. W., Haff, G. G., Fethke, N., Sands, W. A., Stone, M. E., Stone, M. H.(2009). Relationship between strength characteristics and unweighted and weighted vertical jump height. Int J Sports Physiol Perform., 4(4), 461-473. Mandelbaum BR, Silvers HJ, & Watanabe DS(2005). Effectiveness of a neuromuscular and proprioceptive training pro-gram in preventing anterior cruciate ligament injuries in female athletes. American Journal of Sports Medicine, 33(7), 1003-1010. Marques, M. C., van den Tillaar, R., Gabbett, T. J., Reis, V. M., González-Badillo, J. J.(2009). Physical fitness qualities of professional volleyball players: determination of positional differences. J Strength Cond Res., 23(4), 1106-1111. Mayer GD, Ford KR, Brent JL, & Hewett TE(2007). Dif-ferential neuromuscular training effects on ACL injury risk factors in 'high risk' versus 'low rick' athletes. BMC Musculo skeletal Disorder, 8, 69. Meyer, E. G., Haut, R. C.(2003). The effect of impact angle on knee tolerance to rigid impacts. Stapp Car Crash J., 47, 1-19. Mitchinson, L., Campbell, A., Oldmeadow, D., Gibson, W., Hopper D.(2013). Comparison of upper arm kinematics during a volleyball spike between players with and without a history of shoulder injury. J Appl Biomech., 29(2), 155-164. Myer GD, Ford KR, Palumbo JP, & Hewett TE(2005). Neuromuscular training improves performance and lower extremity biomechanics in female athletes. The Journal of Strength and Conditioning Research, 19(1), 51-60. Omkar SN, Vishwas S, & Tech B(2009). Yoga techniques as a means of core stability training. Journal of Bodywork and Movement Therapies, 13(1), 98-103. Patra K & Bab E(2000). Insideout-The foundations of Reebok core training. Reebok. Plisky PJ, Rauh MJ, Kaminski TW, & Underwood FB(2006). Star excursion balance test as a predictor of lower extremity injury in high school basketball players. Journal of Orthopaedic and Sports Physical Therapy, 36(12), 911-919. Ragnarsdottir M(1996). The concept of balance. Physiotherapy, 82, 368-375. Richaedson C, Jull G, Hodges P, & Hides J(1999). therapeutic Exercise for Spinal Segmental Stabilization in Low Back Pain: Scientific Basis and Clinical Edinburgh, New york: Churchill Livingstone. Robinson R, & Gribble P(2008). Kinematic predictors of performance on the Star Excursion Balance Test. Journal of Sport Rehabilitation, 17, 347-357. Sato K & Mokha M(2009). Does core strength training influence running kinetics, lower-extremity stability and 5000-M performance in runners?, J, Strength Cond Res., 23(1), 133-40. Sheri A, Jay H, & Lauren C(2007). The effect of a 4-week comprehensive rehabilitaion program on postural control ankle instability. J ournal of orthopaedic & sports physical therapy, 37(6). Suzuki, Y., Ae, M., Takenaka, S., Fujii, N.(2014). Comparison of support leg kinetics between side-step and cross-step cutting techniques. Sports Biomech., 13(2), 144-153. Thorpe JL, Ebersole KT(2008). Unilateral balance perfor-mance in female collegiate soccer athletes. Journal of Strength Conditioning Research, 22, 1429-1433. Umphred DA(1995). Neurological Rehabilitation. Philadelphia : Mosby, 98-103. Voelzke, M., Strtzig N., Thorhauer, H. A., Granacher, U.(2012). Promoting lower extremity strength in elite volleyball players: effects of two combined training methods. J Sci Med Sport., 15(5), 457-462. Willardson JM(2007). Core stability training: applications to sports conditioning programs. Journal of Strength & conditioning research, 21(3), 979-985. Woods, C., Hawkins, R., Hulse, M., Hodson, A(2003). The Football Association Medical Research Programme: an audit of injuries in professional football: an analysis of ankle sprains. Br J Sports Med., 37(3), 233-238. Zazulak BT, Hwett TE, Reeves NP, Goldberg B, & Chole-wiciki(2007). Deficit in neuromuscular control of the trunk predict knee injury risk. American Orthopaedic Society for Sport Medicine, 35(7), 1123-1130.

Effect of polyethylene glycol on the properties of high moisture absorbing materials for pharmaceutical packaging application

정유환 Graduate School, Yonsei University 2023 국내석사

Moisture removal inside the packaging of food and pharmaceutical products prevents their deterioration during storage. Therefore, the preparation of desiccants derived from moisture-absorbing materials is important. Herein, desiccant composites with channeling morphologies in the polypropylene (PP) matrix were prepared using polyethylene glycol (PEG) with different molecular weights (Mw) and molecular sieves (MS). The effects of the Mw of PEG on the formation, morphology, and stability of the channeling structure in the composites were investigated to select the optimal PEG molecular weight that induces effective water absorption by MS. All composite materials with six different types of molecular weight (4,000, 6,000, 8,000, 10,000, 20,000, 35,000) of PEGs exhibited the form of microphase separation occurring through the channeling structure, and PEG with an Mw of 8000 could induce significant moisture absorption owing to the higher chemical compatibility with MS in the formation of the channeling structure. Additionally, by varying the composition of each component in the composites containing PEG 8000, the composition of the composites with better moisture absorption capacity was identified and their pharmaceutical packaging applicability was evaluated. The composite which had 30 % PP, 20 % PEG, and 50 % MS could effectively absorb the moisture through more channeling structures despite the lower content of MS. Moreover, all composites with different composition could improve the shelf life of tablets through effectively absorbing the moisture in atmosphere in headspace of container. Therefore, these composites can be used to introduce desiccant packaging in the food and pharmaceutical industries. 의약품 포장재 내부의 수분 제거는 제품 보관 중 발생할 수 있는 품질의 저하를 방지할 수 있기 때문에, 수분의 흡수가 가능한 물질을 활용해 건조제를 제작하는 것이 중요하다. 본 연구에서는 폴리프로필렌 (Polypropylene, PP)과 분자체 (Molecular sieve, MS) 및 폴리에틸렌글리콜 (Polyethylene glycol, PEG)을 사용하여 내부에 채널링 구조를 갖는 복합재료를 제작하였다. 이때, PEG의 분자량이 복합재료 내 채널링 구조의 형성 및 안정성에 미치는 영향을 조사하여 MS의 효과적인 수분흡수를 유도하는 최적의 PEG 분자량을 선정하였다. 6가지 PEG의 분자량 (4,000, 6,000, 8,000, 10,000, 20,000, 35,000)을 갖는 각각의 복합 재료는 모두 채널링 구조를 통해 발생하는 미세상의 분리 형태를 나타냈으며, 이 중 분자량 8,000의 PEG는 MS와의 높은 화학적 상용성 및 균일한 분산 형태를 갖는 채널링 구조를 통해 복합재료의 가장 많은 수분 흡수를 유도하였다. 또한, PEG 8000이 포함된 고흡수성 복합재료를 구성하는 각 물질의 조성비를 달리하여 보다 더 우수한 수분흡수력을 갖는 복합재료의 조성을 파악하고, 이들의 의약품 패키징 적용성을 평가하였다. 30 %의 PP와 20 %의 PEG, 50 %의 MS를 포함하는 복합재료는 보다 낮은 고흡수성 물질의 함량에도 불구하고 더 많은 채널 구조를 통해 효과적으로 수분을 흡수할 수 있다. 한편, 조성비가 다른 복합재료 모두 멀티비타민 정제가 포함된 용기 내에서 헤드스페이스 내 존재하는 수분을 효과적으로 흡수하여 저장성을 높일 수 있는 것으로 확인되었다. 따라서 이러한 건조 시스템을 갖는 고흡수성 복합재료는 식품 및 제약 산업에서 건조 성능을 갖춘 포장재로 적용될 수 있을 것으로 기대된다.