بررسی تأثیر تمرین مقاومتی درونگرا و برونگرا بر روی سرعت هدایت پتانسیل عمل تارهای عضلانی عضله چهار سر ران

نوع مقاله : مقاله پژوهشی Released under (CC BY-NC 4.0) license I Open Access I

نویسندگان

1 1. کارشناس ارشد فیزیولوژی ورزش، گروه علوم ورزشی، واحد بجنورد، دانشگاه آزاد اسلامی، بجنورد، ایران.

2 2. استادیار فیزیولوژی ورزش، گروه علوم ورزشی، واحد بجنورد، دانشگاه آزاد اسلامی، بجنورد، ایران.

10.22049/jahssp.2021.27528.1408

چکیده

هدف: هدف از پژوهش حاضر بررسی تأثیر 8 هفته تمرین مقاومتی درونگرا و برونگرا روی سرعت هدایت پتانسیل عمل تارهای عضلانی عضله چهار سر ران بود. روش شناسی: 30 نفر از پسر غیرفعال (سن: 1/2±3/22 سال؛ وزن:6/8±3/71 کیلوگرم و قد: 1/0±76/1 متر) برای این پژوهش انتخاب شدند. آزمودنی­ ها به­ صورت تصادفی به دو گروه تمرین درونگرا (15 نفر) و تمرین برونگرا (15 نفر) تقسیم شدند. حداکثر انقباض ارادی (MVC) و سیگنال­ الکترومیوگرافی سطحی قبل و بعد از هشت هفته تمرین برونگرا و درونگرا با شدت 80 درصد یک تکرار بیشینه، از عضله چهار سر ران ثبت گردید. برای تجزیه تحلیل داده­ ها از تجزیه تحلیل واریانس چند طرفه و آزمون تعقیبی توکی استفاده شد. یافته‌ها: نتایج تحقیق نشان داد که MVC اکستنشن زانو بعد از هشت هفته تمرینات مقاومتی درونگرا و مقاومتی برونگرا به ­طور معناداری افزایش یافت (001/0=P). همچنین میزان افزایش در فرکانس توان میانه و سرعت هدایت پتانسیل عمل تارهای عضلانی بعد از هشت هفته تمرینات مقاومتی برونگرا به طور معناداری بزرگتر از میزان افزایش آن بعد از تمرینات مقاومتی درونگرا بود (05/0˂P). نتیجه‌گیری: در مجموع افزایش بزرگتر در حداکثر انقباض ارادی اکستنشن زانو همراه با افزایش در فرکانس توان میانه و سرعت هدایت پتانسیل عمل تارهای عضلانی بعد از تمرینات مقاومتی برونگرا، بیانگر سازگاری بهتر و فراخوانی بیشتر تارهای عضلانی تند انقباض در اثر تمرینات مقاومتی برونگرا می­ باشد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Investigating the Effects of Eccentric and Concentric Resistance Training on Action Potential Conduction Velocity of Quadriceps Muscle Fibers

نویسندگان [English]

  • reza Akbari 1
  • Ali Yaghoubi 2
1 1. Master of Sports Physiology, Department of Sport Science, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran
2 2. Assistant Professor of Sports Physiology, Department of Sport Science, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran
چکیده [English]

Aim: The purpose of present study was investigating the effects of 8 weeks eccentric and concentric resistance training on Action potential conduction velocity of quadriceps muscle fibers. Methods: 30 male inactive subjects (age: 22.3±2.1 years; weight 71.3±8.6 kg and height: 1.76±0.1 m) were recruited for this controlled laboratory study. Subjects were randomly divided into two groups: the eccentric training group (No=15) and the concentric training group (No=15).  The maximal voluntary contraction (MVC) of quadriceps muscles and surface electromyography signals were recorded before and after 8 weeks of resistance concentric and eccentric training with 80% of 1RM. The multifactorial variance and Tukey Post hoc tests were used for data analysis.  Results: The results showed that MVC of knee extension after eccentric resistance training and concentric resistance training significantly increased (P=0.001). Also the increase in the mean power frequency and Action potential conduction velocity of muscle fibers after eccentric resistance training was significantly more than the increase after concentric resistance training (P<0.05). Conclusions: The higher increase in maximum voluntary contraction of knee extension is associated with increasing the frequency of moderate strength and Action potential conduction velocity of muscle fibers after eccentric resistance training indicates better adaptation and recruitment of fast-twitch muscle fibers to eccentric resistance training.

کلیدواژه‌ها [English]

  • eccentric training
  • concentric training
  • Action potential conduction velocity
  • Maximum voluntary contraction

   

 

This is an open access article distributed under the following Creative Commons license: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

مراجع

  1.  

    1. Norrbrand L, Fluckey JD, Pozzo M, Tesch PA. Resistance training using eccentric overload induces early adaptations in skeletal muscle size. European journal of applied physiology. 2008;102(3):271-81.
    2. Farthing JP, Chilibeck PD. The effects of eccentric and concentric training at different velocities on muscle hypertrophy. European journal of applied physiology. 2003;89(6):578-86.
    3. Hather B, Tesch P, Buchanan P, Dudley G. Influence of eccentric actions on skeletal muscle adaptations to resistance training. Acta Physiologica Scandinavica. 1991;143(2):177-85.
    4. Scott W, Stevens J, Binder–Macleod SA. Human skeletal muscle fiber type classifications. Physical therapy. 2001;81(11):1810-6.
    5. McCARTHY JP, Pozniak MA, Agre JC. Neuromuscular adaptations to concurrent strength and endurance training. Medicine & Science in Sports & Exercise. 2002;34(3):511-9.
    6. Taipale R, Mikkola J, Vesterinen V, Nummela A, Häkkinen K. Neuromuscular adaptations during combined strength and endurance training in endurance runners: maximal versus explosive strength training or a mix of both. European journal of applied physiology. 2013;113(2):325-35.
    7. Afsharnezhad T, Amani A, Khorsandi M, Safar Zadeh S. The effects of 8-weeks unilateral resistance training on strength, time to task failure, and synergist co-activation of elbow flexor Muscles in trained and untrained limbs %J Journal of Applied Health Studies in Sport Physiology. 2018;5(1):28-36.
    8. Knudson D. Mechanics of the musculoskeletal system. Fundamentals of biomechanics: Springer; 2021. p. 55-78.
    9. Mendell LM. The size principle: a rule describing the recruitment of motoneurons. Journal of neurophysiology. 2005;93(6):3024-6.
    10. Bolboli L, Sattari M, Hakimi V. Effect of High Intensity Interval Training and Moderate Intensity Continuous Training on Electrocardiographic Indices in Sedentary Men %J Journal of Applied Health Studies in Sport Physiology. 2020;7(2):53-8.
    11. Hedayatpour N, Falla D. Physiological and neural adaptations to eccentric exercise: mechanisms and considerations for training. BioMed research international. 2015;2015.
    12. Krustrup P, Söderlund K, Mohr M, González-Alonso J, Bangsbo J. Recruitment of fibre types and quadriceps muscle portions during repeated, intense knee-extensor exercise in humans. Pflügers Archiv. 2004;449(1):56-65.
    13. Canepa P, Papaxanthis C, Bisio A, Biggio M, Paizis C, Faelli E, et al. Motor cortical excitability changes in preparation to concentric and eccentric movements. Neuroscience. 2021.
    14. Hedayatpour N, Falla D, Arendt-Nielsen L, Vila-Chã C, Farina D. Motor unit conduction velocity during sustained contraction after eccentric exercise. Med Sci Sports Exerc. 2009;41(10):1927-33.
    15. Bagheri T, Abedi B, Hedayatpour N. Effects of 12 Weeks Concentric and Eccentric Resistance Training on Neuromuscular Adaptation of Quadriceps Muscle. Journal of Rehabilitation Sciences & Research. 2020;7(4):161-6.
    16. Nasrabadi R, Izanloo Z, Sharifnezad A, Hamedinia MR, Hedayatpour N. Muscle fiber conduction velocity of the vastus medilais and lateralis muscle after eccentric exercise induced-muscle damage. Journal of Electromyography and Kinesiology. 2018;43:118-26.
    17. Nuccio S, Del Vecchio A, Casolo A, Labanca L, Rocchi JE, Felici F, et al. Muscle fiber conduction velocity in the vastus lateralis and medialis muscles of soccer players after ACL reconstruction. Scandinavian Journal of Medicine & Science in Sports. 2020;30(10):1976-84.
    18. Beretta-Piccoli M, Cescon C, Barbero M, D'Antona G. Reliability of surface electromyography in estimating muscle fiber conduction velocity: A systematic review. Journal of Electromyography and Kinesiology. 2019;48:53-68.
    19. Vaz M, Thangam S, Prabhu A, Shetty P. Maximal voluntary contraction as a functional indicator of adult chronic undernutrition. British Journal of Nutrition. 1996;76(1):9-15.
    20. Westing S, Cresswell A, Thorstensson A. Muscle activation during maximal voluntary eccentric and concentric knee extension. European journal of applied physiology and occupational physiology. 1991;62(2):104-8.
    21. Oliveira FB, Oliveira AS, Rizatto GF, Denadai BS. Resistance training for explosive and maximal strength: effects on early and late rate of force development. Journal of sports science & medicine. 2013;12(3):402.
    22. Klass M, Baudry S, Duchateau J. Voluntary activation during maximal contraction with advancing age: a brief review. European journal of applied physiology. 2007;100(5):543-51.
    23. Ruas CV, Lima CD, Pinto RS, Oliveira MA, Barros JA, Brown LE. Brain activation differences between muscle actions for strength and fatigue: A brief review. Brazilian Journal of Motor Behavior. 2016;10(1):1-8.
    24. Hinks A, Hess A, Debenham MI, Chen J, Mazara N, Inkol KA, et al. Power loss is attenuated following a second bout of high-intensity eccentric contractions due to the repeated bout effect’s protection of rate of torque and velocity development. Applied Physiology, Nutrition, and Metabolism. 2021;46(5):461-72.
    25. Clos P, Mater A, Laroche D, Lepers R. Concentric versus eccentric cycling at equal power output or effort perception: Neuromuscular alterations and muscle pain. Scandinavian Journal of Medicine & Science in Sports. 2021.
    26. Hedayatpour N, Falla D, Arendt‐Nielsen L, Farina D. Effect of delayed‐onset muscle soreness on muscle recovery after a fatiguing isometric contraction. Scandinavian journal of medicine & science in sports. 2010;20(1):145-53.
    27. Casolo A, Farina D, Falla D, Bazzucchi I, Felici F, Del Vecchio A. Strength training increases conduction velocity of high-threshold motor units. Med Sci Sports Exerc. 2020;52:955-67.
    28. Aagaard P, Simonsen EB, Andersen JL, Magnusson P, Dyhre-Poulsen P. Increased rate of force development and neural drive of human skeletal muscle following resistance training. Journal of applied physiology. 2002;93(4):1318-26.
مطالعات کاربردی تندرستی در فیزیولوژی ورزش
دوره 8، شماره 2
مهر 1400
صفحه 102-108

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سابقه مقاله

  • تاریخ دریافت: 29 آبان 1400
  • تاریخ بازنگری: 11 آذر 1400
  • تاریخ پذیرش: 21 آذر 1400

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