ORIGINAL_ARTICLE
اثر تمرین راهرفتن به عقب بر اوج تنش عضلات مفاصل زانو و مچ پا هنگام راهرفتن به جلو
هدف پژوهش حاضر ارزیابی اثر تمرین راهرفتن به عقب بر اوج تنش عضلات مفاصل زانو و مچ پا هنگام راهرفتن به جلو بود. 30 نفر دانشجوی پسر داوطلب به دو گروه کنترل و تجربی تقسیم شدند. آزمودنیهای گروه تجربی در برنامۀ چهارهفتهای تمرین راهرفتن به عقب شرکت کردند. سینماتیک حرکت مفاصل زانو و مچ پای اندام برتر به همراه فعالیت الکتریکی عضلات آنها هنگام راهرفتن به جلو در پیشآزمون و پسآزمون ضبط شد. حداکثر اوج تنش عضلانی مفاصل زانو و مچ پا در فازهای تاشدن و بازشدن تعیین شد. نتایج نشان داد که تمرین راهرفتن به عقب موجب کاهش اوج تنش برخی عضلات بازکننده و تاکننده زانو هنگام راهرفتن به جلو میشود. این کاهش که نشاندهندۀ تکامل سازوکارهای کنترلی سیستم اعصاب مرکزی برای حفظ تعادل مفصلی است، باعث کاهش هزینه انرژی و درنهایت تأخیر خستگی عضلانی هنگام راهرفتن به جلو میشود.
https://smj.ssrc.ac.ir/article_725_0df393eb81d168cbc9880363c95adba9.pdf
2015-12-22
17
30
الکترومیوگرافی
تنش عضلانی
راهرفتن
زانو
مچ پا
مریم
رحیمیچیتگر
rahimi1823@yahoo.com
1
دانشجوی کارشناسارشد ، دانشکده تربیتبدنی و علوم ورزشی، دانشگاه حکیم سبزواری
AUTHOR
محسن
دماوندی
mn.damavandi@gmail.com
2
استادیار، دانشکده تربیتبدنی و علوم ورزشی، دانشگاه حکیم سبزواری
LEAD_AUTHOR
سیدعلیرضا
حسینیکاخک
hosseini18@yahoo.com
3
دانشیار، دانشکده تربیتبدنی و علوم ورزشی، دانشگاه حکیم سبزواری
AUTHOR
1. Neptune RR, Zajac FE, Kautz SA. 2004. Muscle force redistributes segmental power for body progression during walking. Gait & Posture. 2004. 19:194–205.
1
2. McGowan CP, Neptune RR, Clark DJ, Kautz SA. Modular control of human walking: Adaptations to altered mechanical demands. Journal of Biomechanics. 2010. 43:412–9.
2
3. Safavynia A, Torres-Oviedo G, Ting Lena H. Muscle Synergies: Implications for Clinical Evaluation and Rehabilitation of Movement. Topics in Spinal Cord Injury Rehabilitation. 2011. 17(1):16–24.
3
4. Winter DA. Human balance and posture control during standing and walking. Gait & Posture. 1995. 3:193–214.
4
5. Rose DJ. Reduction the Risk of fall among older adults: the fall proof balance and mobility program. Current Sports Medicine Reports. 2011. 10(3):151–6.
5
6. Clarke MS. The effect of exercise on skeletal muscle in the aged. Journal of musculoskeletal & neuronal interactions. 2004. 4(2):175–8.
6
7. Grasso R, Bianchi L, Lacquaniti F. Motor Patterns for Human Gait: Backward Versus Forward Locomotion. Prosthetics and Orthotics International. 2010. 34(3):254–69.
7
8. Jansen K, De Groote F, Massaad F, Meyns P, Duysens J, Jonkers I. Similar muscles contribute to horizontal and vertical acceleration of center of mass in forward and backward walking: implications for neural control. Journal of Neurophysiology. 2012. 107(12):3385–96.
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9. Yang YR, Yen JG, Wang RY, Yen LL, Lieu FK. Gait outcomes after additional backward walking training in patients with stroke: a randomized controlled trial. Clinical Rehabilitation. 2005. 19(3):264–73.
9
10. Fellin RE, Rose WC, Royer TD, Davis IS. Comparison of methods for kinematic identification of footstrike and toe-off during overground and treadmill running. Journal of Science and Medicine in Sport. 2010. 13(6):646–50.
10
11. Whittle MW. Gait Analysis: An Introduction. 4th edition. Heidi Harrison Publisher, 2007. 154–6.
11
12. Winter DA. Human balance and posture control during standing and walking. Gait & Posture. 1995. 3:193–214.
12
13. Winter DA. The Biomechanics and Motor Control of Human Gait. 4th edition. 2009. 35–8.
13
14. Robertson DGE, Caldwell G, Hamill J, Kamen G, Whittlesey S. Research Methods in Biomechanics. 1st Edition, Human Kinetics. 2014. 163–81.
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15. Dimitrov DM, Rumrill PD. Pretest-posttest designs and measurement of change. Work. 2003. 20:159–65.
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16. Inman VT, Ralston HJ, Todd F. Human walking. Baltimore, Williams & Wilkins. 1981. 181–5.
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17. Thorstensson A. How is the normal locomotor program modified to produce backward walking? Experimental Brain Research. 1986. 61:664–8.
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18. Dietz V. Human neuronal control of automatic functional movements: interaction between central programs and afferent input. Physiological Reviews. 1992. 72:33–69.
18
19. Rose J, Gamble JG. Human Walking. 3rd Edition, Lippincott Williams & Wilkins. 2006. 135–42.
19
ORIGINAL_ARTICLE
تأثیر هشت هفته تمرین استقامتی بر برخی پارامترهای بیومکانیکی استخوان ران موشهای صحرایی نر مسن
هدف از پژوهش حاضر بررسی تأثیر هشت هفته تمرین استقامتی بر برخی پارامترهای بیومکانیکی استخوان ران موشهای صحرایی نر مسن بود. بیست سر موش صحرایی نر نژاد ویستار 20 ماهه (میانگین وزن 4/15±5/360 گرم) به صورت تصادفی به دو گروه تجربی (10=n) و کنترل (10=n) تقسیم شدند. گروههای تمرینی به مدت هشت هفته، هر هفته پنج روز و روزی 60 دقیقه با سرعت 28 متر بر دقیقه روی نوارگردان میدویدند. پس از خارج کردن استخوان ران آزمودنیها، از آزمون فشار مکانیکی خمش سهنقطهای برای تعیین تغییرات سختی، انرژی شکست، قدرت و درصد تغییر شکل استخوان استفاده شد. نتایج این پژوهش نشان داد که هشت هفته تمرین استقامتی بر سختی، قدرت، انرژی شکست و درصد تغییر شکل استخوان ران موشهای نر سالمند تأثیر معناداری ندارد که دلیل این امر ممکن است ناشی از سن و جنس آزمودنی و همچنین پروتکل تمرین باشد؛ بنابراین پیشنهاد میشود مطالعات بیشتری در این زمینه انجام شود.
https://smj.ssrc.ac.ir/article_726_76f22d343bbbccb52d45d2c483af6898.pdf
2015-09-23
31
42
سالمندی
سختی استخوان
انرژی شکست
حداکثر مقاومت استخوان
درصد تغییرات استخوان
سیما
محمدآملی
sima.amoli@yahoo.com
1
کارشناس ارشد بیومکانیک ورزشی، دانشگاه خوارزمی
LEAD_AUTHOR
حیدر
صادقی
sadeghih@yahoo.com
2
استاد تمام گروه بیومکانیک دانشگاه خوارزمی
AUTHOR
منیژه
مختاری دیزجی
mokhtarm@modares.ac.ir
3
استاد تمام گروه فیزیک پزشکی دانشگاه تربیت مدرس
AUTHOR
1. Gallegly JC, Turesky NA, Strotman BA, Gurley CM, Peterson CA, Dupont-Versteegden EE. Satellite cell regulation of muscle mass is altered at old age. Journal of Applied Physiology. 2004; 97(3):1082-90.
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2. Marcell TJ. Review article: Sarcopenia: causes, consequences, and preventions. The Journals of Gerontology Series A: Biological Sciences and Medical Sciences. 2003; 58(10): 911-6.
2
3. Narici MV, Maffulli N. Sarcopenia: characteristics, mechanisms and functional significance. British medical bulletin. 2010; 95(1):139-59.
3
4. Germain-Lee EL, Smith MMCEL. Effects of aging on bone. Geriatric Rehabilitation Manual. 2007:13.
4
5. Cole JH, van der Meulen MC. Whole bone mechanics and bone quality. Clinical Orthopaedics and Related Research®. 2011; 469(8):2139-49.
5
6. Marques EA, Wanderley F, Machado L, Sousa F, Viana JL, Moreira-Gonçalves D, et al. Effects of resistance and aerobic exercise on physical function, bone mineral density, OPG and RANKL in older women. Experimental gerontology. 2011; 46(7):524-32.
6
7. Huang T, Lin S, Chang F, Hsieh S, Liu S, Yang R. Effects of different exercise modes on mineralization, structure, and biomechanical properties of growing bone. Journal of Applied Physiology. 2003; 95(1):300-7.
7
8. Umemura Y, Sogo N, Honda A. Effects of intervals between jumps or bouts on osteogenic response to loading. Journal of Applied Physiology. 2002; 93(4):1345-8.
8
9. Johannsen N, Binkley T, Englert V, Neiderauer G, Specker B. Bone response to jumping is site-specific in children: a randomized trial. Bone. 2003; 33(4):533-9.
9
10. Cullen D, Smith R, Akhter M. Bone-loading response varies with strain magnitude and cycle number. Journal of Applied Physiology. 2001; 91(5):1971-6.
10
11. Downey PA, Siegel MI. Bone biology and the clinical implications for osteoporosis. Physical therapy. 2006; 86(1):77-91.
11
12. Skerry T. Mechanical loading and bone: What sort of exercise is beneficial to the skeleton? Bone. 1997; 20(3):179-81.
12
13. Drummond LR, Del Carlo RJ, Melo SFS, Carneiro-Junior MA, Da Silva KA, Rodrigues AC, et al. Enhanced femoral neck strength in response to weightlifting exercise training in maturing male rats: original research article. International SportMed Journal. 2013; 14(3):155-67.
13
14. Lin H-S, Huang T-H, Wang H-S, Mao S-W, Tai Y-S, Chiu H-T, et al. Short-Term Free-Fall Landing Causes Reduced Bone Size and Bending Energy in Femora of Growing Rats. Journal of sports science & medicine. 2013; 12(1):1.
14
15. Huang T-H, Chang F-L, Lin S-C, Liu S-H, Hsieh SS, Yang R-S. Endurance treadmill running training benefits the biomaterial quality of bone in growing male Wistar rats. Journal of bone and mineral metabolism. 2008; 26(4):350-7.
15
16. Naito H, Powers SK, Demirel HA, Aoki J. Exercise training increases heat shock protein in skeletal muscles of old rats. Medicine and science in sports and exercise. 2001; 33(5):729.
16
17. Miller LE, Wootten DF, Nickols-Richardson SM, Ramp WK, Steele CR, Cotton JR, et al. Isokinetic training increases ulnar bending stiffness and bone mineral in young women. Bone. 2007; 41(4):685-9.
17
18. Talbott SM, Cifuentes M, Dunn MG, Shapses SA. Energy restriction reduces bone density and biomechanical properties in aged female rats. The Journal of nutrition. 2001; 131(9):2382-7.
18
19. Barbosa Adelton Andrade RJDC, Simone Rezende GALVÃO,Mário Jefferson Quirino LOUZADA. Free Activity in The Cage Associated with Body Weight and Restoration of Bone Structural and Mechanical Properties in Growing Rates After Hindlimb Unloading. Biosci J. 2012; v. 28, n. 4, p. 660-6.
19
20. Robling AG, Hinant FM, Burr DB, Turner CH. Improved bone structure and strength after long‐term mechanical loading is greatest if loading is separated into short bouts. Journal of Bone and Mineral Research. 2002; 17(8):1545-54.
20
21. Nozaki K, Kaku M, Yamashita Y, Yamauchi M, Miura H. Effect of cyclic mechanical loading on osteoclast recruitment in periodontal tissue. Journal of periodontal research. 2010; 45(1):8-15.
21
22. Xu X-Y, Guo C, Yan Y-X, Guo Y, Li R-X, Song M, et al. Differential effects of mechanical strain on osteoclast genesis and osteoclast-related gene expression in RAW264. 7 cells. Molecular medicine reports. 2012; 6(2):409-15.
22
23. Robling AG, Castillo AB, Turner CH. Biomechanical and molecular regulation of bone remodeling. Annu Rev Biomed Eng. 2006; 8:455-98.
23
ORIGINAL_ARTICLE
آثار کوتاه و بلندمدت سه پروتکل تمریندرمانی با هدفگیری زانو، ران و ترکیبی در زنان مبتلا به سندرم درد کشککی-رانی
هدف از پژوهش حاضر مقایسۀ آثار سه پروتکل تمریندرمانی بر درد، قدرت عضلات و عملکرد زنان مبتلابه درد کشککی-رانی بود. 41 زن مبتلا به صورت تصادفی در گروههای تمرین (گروه زانو، گروه ران و گروه ترکیبی) و گروه کنترل قرار گرفتند. گروههای تمرین در هشت هفته پروتکل تمرینی شرکت کردند. درد، قدرت عضلاتبازکننده زانو، دورکننده و چرخانندههای خارجی ران و عملکرد قبل و بعد از مداخله ارزیابی شد. آنالیز واریانس اندازههای تکراری بهبود معناداری در درد، قدرت عضلات و عملکرد گروههای مداخله نشان داد. بهبود قدرت عضلۀ چهارسر رانی و عملکرد در گروه ران معنادار نبود. آثار بهبود درد در هر سه گروه مداخله تا شش ماه باقی ماند. تمریندرمانی با تأکید بر عضلات زانو و برنامۀ ترکیبی (زانو-ران) در بهبود عملکرد و کاهش درد زنان مبتلابه درد کشککی-رانی مؤثر بود.
https://smj.ssrc.ac.ir/article_727_e254b6232b9e9b4c03055323d9a7ac95.pdf
2015-12-22
43
66
سندرم درد کشککی-رانی
تمریندرمانی
عضلات دورکنندۀ ران
عضلات چرخانندۀ خارجی ران
عضلات بازکنندۀ زانو
احمد
سلیم زاده
salimzad@tums.ac.ir
1
عضو هیات علمی دانشگاه علوم پزشکی تهران
AUTHOR
بهناز
گنجی
behnazganji@yahoo.com
2
عضو هیات علمی دانشگاه آزاد اسلامی واحد کرج
LEAD_AUTHOR
محمد حسین
علیزاده
mhalizadeh47@yahoo.com
3
عضو هیات علمی دانشگاه تهران
AUTHOR
رضا
رجبی
rrajabi@ut.ac.ir
4
عضو هیات علمی دانشگاه تهران
AUTHOR
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2. Rixe JA, Glick JE, Brady J, Olympia RP. A review of the management of patellofemoral pain syndrome. Phys Sportsmed. .2013; 41(3):19-28.
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3. Petersen Wolf, Ellermann Andree, Go¨sele-Koppenburg Andreas, Best Raymond, Rembitzki Ingo Volker, Bru¨ggemann Gerd-Peter, Liebau Christian. Patellofemoral pain syndrome. Knee Surg Sports Traumatol Arthrosc. 2014; 22(10):2264-74.
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4. Mascal CL, Landel R, Powers C. Management of patellofemoral pain targeting hip, pelvis, and trunk muscle function: 2 case reports.J Orthop Sports Phys Ther.2003; 33(11):647-60.
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5. Peters Jeroen, Tyson Natalie L. Proximal exercises are effective in treating patellofemoral pain syndrome: a systematic review. Int J Sports Phys Ther.2013; 8(5):689-700.
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6. piva sara, fitzgerald kelley, wisniewski stephen, delitto Anthony. Patellofemoral predictors of pain and function outcome after rehabilitation in patients with patellofemoral pain syndrome. j rehabil med.2009; 41: 604–12.
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7. Rathleff MS, Rathleff CR, Simonsen O. Treatment of patients with patellofemoral pain syndrome. Ugeskr Laeger. 2014; 17(6):176.
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8. Chester Rachel, Smith Toby O, Sweeting David, Dixon John, Wood Sarah and Fujian Song. The relative timing of VMO and VL in the aetiology of anterior knee pain: a systematic review and meta-analysis. BMC Musculoskeletal Disorders .2008; 1(9):64.
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9. Tang SF, Chen CK, Hsu R, Chou SW, Hong WH, Lew HL. Vastus medialis obliquus and vastus lateralis activity in open and closed kinetic chain exercises in patients with patellofemoral pain syndrome: an electromyographic study. Arch Phys Med Rehabil. 2001; 82(10):1441-5.
9
10. Souza, Richard B. The influence of hip and femur kinematics on patellofemoral joint dysfunction. A dissertation presented to the faculty of the graduate school University of Southern California in partial fulfillment of the requirements for the degree doctor of philosophy (biokinesiology).2008.
10
11. Anh-Dung Nguyen, Boling Michelle C., Beverly Levine, Shultz Sandra J. Relationships Between Lower Extremity Alignment and the Quadriceps Angle, Clin J Sport Med. 2009;19(3): 201–6.
11
12. Ireland ML, Willson JD, Ballantyne BT, Davis IM. Hip strength in females with and without patellofemoral pain. J Orthop Sports Phys Ther 2003;.33(11):671-6.
12
13. Robinson Ryan L, Robert J. Nee. Analysis of hip strength in females seeking physical therapy treatment for unilateral patellofemoral pain syndrome. J orthopaedic & sports physical therapy. 2007; 37(5): 232-8.
13
14. Bolgla Lori A, Malone Terry R, Umberger Brian R, Timothy L. UHL. Hip Strength and Hip and Knee Kinematics during Stair Descent in Females with and without Patellofemoral Pain Syndrome. Journal of orthopaedic & sports physical therapy. 2008; 38(1):8-12.
14
15. Prince Maarten R, Wurff Peter Van der. Females with patellofemoral pain have weak hip muscles: A Systematic Review. Australian journal of physiotherapy. 2009; 55(1):9-15.
15
16. Noehren B, Pohl MB, Sanchez Z, Cunningham T, Lattermann C. Proximal and distal kinematics in female runners with patellofemoral pain. lin Biomech.2012; 27(4):366-71.
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17. Brindle TJ, Mattacola C, McCrory J. Electromyographic changes in the gluteus medius during stair ascent and descent in subjects with anterior knee pain. Knee Surg Sports Traumatol Arthrosc. 2003; 11(4):244-51.
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18. Long-Rossi Frances, Salsich Gretchen B. Pain and Hip Lateral Rotator Muscle Strength Contribute to Functional Status in Females with Patellofemoral Pain. Physiother.Res. Int.2010; 15(7) 57–64.
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19. Bokaee Fatemeh, Nasseri Nasrin, Mazaheri Hasan, Fakhari Zahra, Jalaee Shohre. Strengths of lower extremity and lower trunk muscles in females with patellofemoral pain syndrome. J semnan medical sciences. 2010; 12(1):22-31. (Persian)
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20. Souza Richard B, Powers Christopher M. Differences in hip kinematics, muscle strength, and muscle activation between subjects with and without patellofemoral pain. Journal of orthopaedic & sports physical therapy. 2009; 39(1):9-12.
20
21. Willson John D. and Irene S. Davis. Lower Extremity Strength and Mechanics during Jumping in Women with Patellofemoral Pain. Journal of Sport Rehabilitation. 2009;18(1): 76-90.
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22. Boling Michelle C, Darin A. Padua, R. Creighton Alexander. Concentric and Eccentric Torque of the Hip Musculature in Individuals with and Without Patellofemoral Pain, Journal of Athletic Training.2009; 44(1):7–13.
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23. Thijs Y, Pattyn E, Van Tiggelen D, Rombaut L, Witvrouw E. Is hip muscle weakness a predisposing factor for patellofemoral pain in female novice runners? A prospective study. Am J Sports Med. 2011; 39(9):1877-82.
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24. Nakagawa TH, Thiago B. Muniz, Rodrigo M. Baldon, Carlos D. Maciel, César F. Amorim, Fábio V. Serrão. Electromyographic preactivation pattern of the gluteus medius during weight-bearing functional tasks in women with and without anterior knee pain, Rev Bras Fisioter.2011; 15(1):59-65.
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25. Ferber Reed, Kendall Karen D., Farr Lindsay. Changes in Knee Biomechanics after a Hip-Abductor Strengthening Protocol for Runners with Patellofemoral Pain Syndrome, J Athletic Training. 2011; 46(2):142–9.
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26. Khayambashi K, Mohammadkhani Z, Ghaznavi K, Lyle MA, Powers CM. The effects of isolated hip abductor and external rotator muscle strengthening on pain, health status, and hip strength in females with patellofemoral pain: a randomized controlled trial. J Orthop Sports Phys Ther.2012; 42(1):22-9.
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27. Fukuda TY, Rossetto FM, Magalhães E, Bryk FF, Lucareli PR, Carvalho Nde A. Short-term effects of hip abductors and lateral rotators strengthening in females with patellofemoral pain syndrome: a randomized controlled clinical trial. J Orthop Sports Phys Ther. 2010; 40(11):736-42.
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28. Dolak Kimberly L, Carrie Silkman, Jennifer Medina Mckeon, Robert G. Hosey, Christian Lattermann, Timothy L. UHL. Hip strengthening prior to functional exercises reduces pain sooner than quadriceps strengthening in females with patellofemoral pain syndrome: A Randomized Clinical Trial. Journal of orthopaedic & sports physical therapy. 2011; 41(8):560-70.
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29. White Lisa C., Dolphin Philippa, Dixon John. Hamstring length in patellofemoral pain syndrome. Physiotherapy.2009; 95: 24–8.
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30. Waryasz Gregory R and McDermott Ann Y.Patellofemoral pain syndrome (PFPS): a systematic review of anatomy and potential risk factors. Dyn Med. 2008;7: 9.
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31. Rabelo Nayra Deise dos Anjos, Lima Bruna, Reis Amir Curcio dos, Bley André Serra, Yi Liu Chiao. Neuromuscular training and muscle strengthening in patients with patellofemoral pain syndrome: a protocol of randomized controlled trial. BMC Musculoskeletal Disorders. 2014; 15:157.
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ORIGINAL_ARTICLE
تأثیر نواربندی کشکک بر گشتاور سهبعدی مفاصل زانو و ران زنان مبتلا به سندرم درد کشککی-رانی طی مرحله اتکای دویدن
مکانیسم کاهش درد بیماران مبتلا به درد کشککی-رانی طی نواربندی کشکک بهطور کامل مشخص نیست. هدف پژوهش حاضر بررسی اثر نواربندی کشکک بر گشتاور سهبعدی مفاصل ران و زانوی زنان مبتلا به درد کشککی-رانی طی مرحله اتکای دویدن بود. متغیرهای سینماتیکی و سینتیکی 14 زن دارای درد کشککی-رانی توسط پنج دوربین و یک صفحه نیروسنج ثبت شد. از معادلات دینامیک معکوس نیوتن-اولر جهت محاسبه گشتاور استفاده شد. آزمون تی زوجی برای مقایسه اوج گشتاور پیش و حین نواربندی کشکک استفاده شد. اوج گشتاور دورکننده زانو پس از نواربندی بهطور معناداری کاهش یافت (بدون نواربندی: 44/0؛ نواربندی: 25/0 نیوتن متر بر کیلوگرم). مقادیر اوج گشتاور مفصل ران بین دو شرایط اختلاف معناداری نشان نداد. کاهش اوج گشتاور دورکننده زانو میتواند بیانگر مکانیسم کاهش درد حین نواربندی کشکک در افراد دارای درد کشککی-رانی باشد.
https://smj.ssrc.ac.ir/article_728_cac99ff363024951efe89b8b03f437ab.pdf
2015-12-22
67
78
درد کشککی-رانی
دویدن
نواربندی
گشتاور
منصور
اسلامی
mseslami@gmail.com
1
دانشیار دانشکده تربیتبدنی و علوم ورزشی، دانشگاه مازندران
LEAD_AUTHOR
فاطمه
سالاری اسکر
fatemehsalari2@gmail.com
2
دانشجوی دکتری دانشکده تربیتبدنی و علوم ورزشی، دانشگاه مازندران
AUTHOR
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21. Salsich GB, Brechter JH, Farwell D, Powers CM. The effects of patellar taping on knee kinetics, kinematics, and vastus lateralis muscle activity during stair ambulation in individuals with patellofemoral pain. Journal of Orthopaedic & Sports Physical Therapy. 2002; 32(1):3-10.
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25. Bolgla LA, Malone TR, Umberger BR, Uhl TL. Hip strength and hip and knee kinematics during stair descent in females with and without patellofemoral pain syndrome. Journal of orthopaedic & sports physical therapy. 2008; 38(1):12-8.
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29. Selfe J, Richards J, Thewlis D, Kilmurray S. The biomechanics of step descent under different treatment modalities used in patellofemoral pain. Gait & posture. 2008; 27(2):258-63.
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ORIGINAL_ARTICLE
رابطة بین سفتی پا و کارایی چرخة کشش-انقباض در اجرای پرش عمودی زنان ورزشکار
سفتی پا پارامتر اصلی در مدل جرم-فنر برای حرکت انسان است و ارتباط آن با موفقیت در برخی از عملکردهای ورزشی نشان داده شده است. پژوهش حاضر با هدف تعیین ارتباط میان سفتی پا و کارایی چرخة کشش-انقباض در اجرای پرشهای عمودی انجام شد. 12 اسکواشباز زن نخبه (سن 9/5 ±8/22 سال، وزن 37/3 ±62/60 کیلوگرم، قد 06/0 ±65/1 متر) داوطلب شرکت در این پژوهش شدند و آزمون هاپینگ با فرکانس 2/2 هرتز و دو پرش عمودی اسکاتجامپ و کانترموومنتجامپ را انجام دادند. سفتی پا از دادههای آزمون هاپینگ به دست آمد و با وزن آزمودنیها نرمال شد و اختلاف ارتفاع دو پرش به عنوان شاخص کارایی چرخة کشش-انقباض در نظر گرفته شد. سفتی پای نرمال با اختلاف ارتفاع پرشها رابطة معنادار مثبت نشان داد. بر اساس این یافته، افزایش سفتی پا میتواند به بهبود کارایی چرخه کشش-انقباض در پرش عمودی و حرکات مشابه منجر شود.
https://smj.ssrc.ac.ir/article_729_2b73e0d1925f7f6f7546b64374b36fb2.pdf
2015-09-23
79
90
سفتی پا
مدل جرم-فنر
چرخة کشش-انقباض
اسکاتجامپ
کانترموومنتجامپ
مجتبی
عشرستاقی
mojtabaashr@ut.ac.ir
1
دانشجوی دکتری، دانشکده تربیتبدنی و علوم ورزشی ، دانشگاه خوارزمی تهران
LEAD_AUTHOR
الهام
شیرزاد
eshirzad@ut.ac.ir
2
استادیار، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه تهران
AUTHOR
احمدرضا
عرشی
a.r.arshi@gmail.com
3
دانشیار، دانشکده مهندسی پزشکی، دانشگاه صنعتی امیرکبیر
AUTHOR
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2. Latash ML, Zatsiorsky VM. Joint stiffness: Myth or reality? Hum Movement Sci. 1993; 12(6):653-92.
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14. Bojsen-Møller J, Magnusson SP, Rasmussen LR, Kjaer M, Aagaard P. Muscle performance during maximal isometric and dynamic contractions is influenced by the stiffness of the tendinous structures. J Appl Physiol. 2005; 99(3):986-94.
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15. Kubo K, Kanehisa H, Kawakami Y, Fukunaga T. Elasticity of tendon structures of the lower limbs in sprinters. Acta Physiol Scand. 2000; 168(2):327-35.
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17. Morin JB, Jeannin T, Chevallier B, Belli A. Spring-mass model characteristics during sprint running: correlation with performance and fatigue-induced changes. Int J Sports Med. 2006; 27(2):158-65.
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18. Kubo K, Morimoto M, Komuro T, Tsunoda N, Kanehisa H, Fukunaga T. Influences of tendon stiffness, joint stiffness, and electromyographic activity on jump performances using single joint. Eur J Appl Physiol. 2007; 99(3):235-43.
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19. Chelly SM, Denis C. Leg power and hopping stiffness: relationship with sprint running performance. Med Sci Sports Exerc. 2001; 33(2):326-33.
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20. Bret C, Rahmani A, Dufour A, Messonnier L, Lacour J. Leg strength and stiffness as ability factors in 100 m sprint running. J Sports Med Phys Fitness. 2002; 42(3): 274-81.
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21. Hobara H, Tominaga S, Umezawa S, Iwashita K, Okino A, Saito T, et al. Leg stiffness and sprint ability in amputee sprinters. J Prosthet Orthot Int. 2012; 36(3): 312-7.
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22. Pruyn EC, Watsford M, Murphy A. The relationship between lower-body stiffness and dynamic performance. Appl Physiol Nutr Me. 2014; 39(10):1144-50.
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24. McMahon JJ, Comfort P, Pearson S. Lower Limb Stiffness: Effect on Performance and Training Considerations. Strength Cond J. 2012; 34(6): 94-101.
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25. Brazier J, Bishop C, Simons C, Antrobus M, Read PJ, Turner AN. Lower Extremity Stiffness: Effects on Performance and Injury and Implications for Training. Strength Cond J. 2014; 36(5): 103-12.
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26. Dalleau G, Belli A, Viale F, Lacour J, Bourdin M. A simple method for field measurements of leg stiffness in hopping. Int J Sports Med. 2004; 25(3): 170-6.
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27. Hobara H, Kobayashi Y, Yoshida E, Mochimaru M. Leg stiffness of older and younger individuals over a range of hopping frequencies. J Electromyogr and Kines. 2015; 25(2): 305-9.
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30. Aquino CFd, Gonçalves GGP, Fonseca STd, Mancini MC. Analysis of the relation between flexibility and passive stiffness of the hamstrings. Revista Brasileira de Medicina do Esporte. 2006; 12(4): 195-200.
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31. Rabita G, Couturier A, Lambertz D. Influence of training background on the relationships between plantarflexor intrinsic stiffness and overall musculoskeletal stiffness during hopping. Eur J Appl Physiol. 2008; 103(2): 163-71.
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33
ORIGINAL_ARTICLE
بررسی اثر بافتهای نرم در اندازهگیری زاویه کایفوز سینهای بهوسیله خط-کش منعطف
هدف از انجام این پژوهش بررسی اثر بافتهای نرم در اندازهگیری زاویه کایفوز سینهای بهوسیله خطکش منعطف از طریق قرارگیری بر روی بدن و عکس رادیوگرافی و همچنین مقایسه نتایج با روش کوب بود. نمونهها را 18 نفر تشکیل دادند. در بررسی اندازهگیری کایفوز سینهای از طریق خطکش منعطف روی بدن و روی عکس رادیوگرافی با اندازهگیری زاویه کوب همبستگی و روایی بالایی مشاهده شد. در مقایسه این سه روش ازنظر میانگین نتایج اندازهگیری با استفاده از خطکش منعطف روی بدن و روی عکس رادیوگرافی به هم نزدیک است و اختلاف زیادی وجود ندارد. میانگین اندازهگیری با استفاده از خطکش منعطف روی عکس رادیوگرافی با میانگین اندازهگیری از طریق زاویه کوب نیز اختلاف معناداری وجود ندارد.بنابر نتایج بهدستآمده میتوان گفت؛ خطکش منعطف بهعنوان وسیلهای معتبر در مقایسه با بهترین معیار (رادیوگرافی) دارای اعتبار بالایی است و بافتهای نرم ستون فقرات اثری بر اندازهگیری با خطکش منعطف ندارد.
https://smj.ssrc.ac.ir/article_730_5941647bc8f2f0e5aa94282e1d3f05a3.pdf
2015-12-22
91
104
خطکش منعطف
عکس رادیوگرافی
روش کوب
کایفوز
بافت نرم
رضا
رجبی
rrajabi@ut.ac.ir
1
استاد، دانشکده تربیتبدنی و علوم ورزشی، دانشگاه تهران
AUTHOR
سپیده
لطیفی
latifi.sepideh@ut.ac.ir
2
دانشجوی دکتری، پردیس بین الملل کیش ، دانشگاه تهران
LEAD_AUTHOR
هومن
مینونژاد
3
استادیار، دانشکده تربیتبدنی و علوم ورزشی ، دانشگاه تهران
AUTHOR
فرهاد
رجبی
frajabi@ut.ac.ir
4
کارشناس ارشد، دانشکده تربیتبدنی و علوم ورزشی، دانشگاه تهران
AUTHOR
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2. Fölsch C, Schlögel S, Lakemeier S, Wolf U, Timmesfeld N, Skwara A. Test-retest reliability of 3D ultrasound measurements of the thoracic spine. PM&R. 2012; 4(5):335-41.
2
3. Greendale G, Nili N, Huang M-H, Seeger L, Karlamangla A. The reliability and validity of three non-radiological measures of thoracic kyphosis and their relations to the standing radiological Cobb angle. Osteoporosis International. 2011; 22(6): 1897-905.
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4. Kellis E, Adamou G, Tzilios G, Emmanouilidou M. Reliability of spinal range of motion in healthy boys using a skin-surface device. Journal of manipulative and physiological therapeutics. 2008; 31(8):570-6.
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5. Saad KR, Colombo AS, Ribeiro AP, João SMA. Reliability of photogrammetry in the evaluation of the postural aspects of individuals with structural scoliosis. Journal of bodywork and movement therapies. 2012; 16(2):210-6.
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7. Perriman DM, Scarvell JM, Hughes AR, Ashman B, Lueck CJ, Smith PN. Validation of the flexible electrogoniometer for measuring thoracic kyphosis. Spine. 2010; 35(14): 633-40.
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19. Nourbakhsh MR, Moussavi SJ, Salavati M. Effects of lifestyle and work-related physical activity on the degree of lumbar lordosis and chronic low back pain in a Middle East population. Journal of Spinal Disorders & Techniques. 2001; 14(4): 283-92.
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20. Hinman MR. Interrater reliability of flexicurve postural measures among novice users. Journal of Back and Musculoskeletal Rehabilitation. 2003; 17(1):33-6.
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21. Teixeira F, Carvalho G. Reliability and validity of thoracic kyphosis measurements using flexicurve method. Brazilian Journal of Physical Therapy. 2007; 11(3):199-204.
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