Analyzing the Effect of Strength Training on Mechanical and Functional Adaptations of Muscle Tissue Using Mechanical Signals Resulting from Muscle Contraction in Strength Athletes
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This research aims to analyze the effect of strength training on mechanical and functional adaptations of muscle tissue in strength athletes, by studying mechanical signals resulting from muscle contraction. The sample included six strength athletes with an advanced training history, with an average age of 33 years and a weight of 76 kg. The study focused on the biceps brachii and radialis muscles of both limbs, using advanced techniques to measure mechanical properties. The results showed that dynamic stiffness is clearly affected by muscle activity and training intensity, making it a vital indicator for assessing muscle adaptations. A decrease in the natural vibration frequency of muscles was also observed after intensive training, reflecting the effects of central and peripheral muscle fatigue. The study revealed variation in muscle response, particularly with regard to relaxation time and deformation after exercise, reflecting the diverse mechanical properties of the targeted muscles. However, the study indicated the need for further research to understand the relationship between training and muscle tissue behavior through the concept of Deborah's number, the effect of which has not been sufficiently clarified. The researcher recommended the necessity of adopting objective analysis using modern devices to obtain accurate results, in addition to conducting future studies to explore the effect of fibrous structures on muscle stiffness indicators. This study contributes to providing a deeper understanding of the mechanical adaptations resulting from resistance training, which supports improving the quality of training programs and enhancing athletic performance.
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• Ahmed Abdel-Imamah, Dynamic Flexibility Exercises in Developing Speed-Distinguished Strength and Some Basic Skills in Youth Basketball. (2021). Journal of Sports Science, 13(46), 62–75. https://doi.org/10.26400/sp/46/4
• Ahmed, M. (2020). Special exercises using the strength training balanced rate according to some kinematic variables and their impact on the muscular balance and pull of young weightlifters. 24(01), 7612–7617. Beck, T. W., Housh, T. J., Cramer, J. T., Weir, J. P., Johnson, G. O., Coburn, J. W., Malek, M. H., & Mielke, M. (2005). Mechnomyographic amplitude and frequency responses during dynamic muscle actions: A comprehensive review. In BioMedical Engineering Online (Vol. 4). https://doi.org/10.1186/1475-925X-4-67
• Chen, Y. L., Chen, Y., Lin, W. C., Liao, Y. H., & Lin, C. J. (2019). Lumbar posture and individual flexibility influence back muscle flexion-relaxation phenomenon while sitting. International Journal of Industrial Ergonomics, 74, 102840. https://doi.org/10.1016/J.ERGON.2019.102840
• Dankel, S. J., & Razzano, B. M. (2020). The impact of acute and chronic resistance exercise on muscle stiffness: a systematic review and meta-analysis. In Journal of Ultrasound (Vol. 23, Issue 4, pp. 473–480). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/s40477-020-00486-3
• Diyar Muhammed Ali. (2025). The Effect of the Weight Watchers Diet on the Body Composition and Blood Parameters in Obese Men . Journal of Sport Science, 17(63), 102-111. https://doi.org/10.26400/63/9
• Ettema, G. J. C., & Huijing, P. A. (1994). Skeletal muscle stiffness in static and dynamic contractions. Journal of Biomechanics, 27(11), 1361–1368. https://doi.org/10.1016/0021-9290(94)90045-0
• Exercise, A., & Journal, S. S. (2021). Rationing Training Load according to the Nature of the Prevailing Muscular Work and its Effect on the Functional adaptation, Specific Strength and Snatch Achievement for Weightlifters at (14-16 year-old). 5(1), 1–17.
• Fakhri Al-Din Qasim et al., The Effect of Tribulus terrestris Consumption on Some Biochemical Indicators in Young Weightlifters. (2015). Journal of Sports Science, 7(20), 24–33. https://doi.org/10.26400/sp/20/3
• Guo, L. X., & Zhang, C. (2022). Development and Validation of a Whole Human Body Finite Element Model with Detailed Lumbar Spine. World Neurosurgery, 163, e579–e592. https://doi.org/10.1016/J.WNEU.2022.04.037
• IJAEP Differences in biomechanical and EMG variables among Iraqi, Iranian, Turkish and Syrian weightlifters during Olympic lifts. (n.d.). www.ijaep.com
• Islam, M. A., Sundaraj, K., Ahmad, R. B., & Ahamed, N. U. (2013). Mechanomyogram for Muscle Function Assessment: A Review. PLoS ONE, 8(3). https://doi.org/10.1371/journal.pone.0058902
• Ismaeel, S. A. (n.d.). The 8th International Scientific Conference of the European Journal of Sports Science and Technology, Special Issue No. 10, held by the Scientific Society of Arab States.
• Ismaeel, S., Abdulwahab Ismaeel, S., Habib Kaddouri, R., & Ali Hassan, A. (2015). AN ANALYTICAL STUDY OF SOME KENMATICAL VARIABLES AND SUMMIT OF ELECTRICAL ACTIVITY OF THE STRIKING ARM MUSCLES OF THE STRAIGHT TRANSMISSION IN TENNIS. In The Swedish Journal of Scientific Research (Vol. 2). www.sjsr.se
• Jalal Abdul Zahra Kanaan. (2025). Designing and Standardizing a Test of Measuring the Distinctive Strength by the Speed of the Arms Using the Wrestling Dummy for Wrestlers Aged (13-15) years. Journal of Sport Science, 17(63), 13-26. https://doi.org/10.26400/63/1
• Jiménez-Sánchez, S., Fernández-de-las-Peñas, C., Carrasco-Garrido, P., Hernández-Barrera, V., Alonso-Blanco, C., Palacios-Ceña, D., & Jiménez-García, R. (2012). Prevalence of chronic head, neck and low back pain and associated factors in women residing in the Autonomous Region of Madrid (Spain). Gaceta Sanitaria, 26(6), 534–540. https://doi.org/10.1016/J.GACETA.2011.10.012
• Lin, Y. T., Kuo, C. H., & Hwang, I. S. (2014). Fatigue effect on low-frequency force fluctuations and muscular oscillations during rhythmic isometric contraction. PLoS ONE, 9(1). https://doi.org/10.1371/journal.pone.0085578
• Melo, A. S. C., Cruz, E. B., Vilas-Boas, J. P., & Sousa, A. S. P. (2022). Scapular Dynamic Muscular Stiffness Assessed through Myotonometry: A Narrative Review. In Sensors (Vol. 22, Issue 7). MDPI. https://doi.org/10.3390/s22072565
• Nema, N. S. (2022). THE EFFECT OF SPECIAL EXERCISES IN LEARNING SOME BASIC SKILLS IN VOLLEYBALL AND SOME BIOMECHANICAL VARIABLES ACCORDING TO MAGNETIC RESONANCE MEASUREMENTS OF THE UPPER LIMBS. 17(26), 143–145.
• Qahtan Fadel Muhammad, "Identifying a Neural Network Model for the Most Important Physical Capabilities of the Handball Shooting Skill from a Standing Position." (2024). Journal of Sports Sciences, 16(62), 100-111. https://doi.org/10.26400/
• Randy Matti Afram, The Effect of a Training Method Based on Physiological Analysis on the Explosive Power of the Legs and Arms and the Smashing Skill of Female Volleyball Players: Physiological Analysis of the Explosive Power of the Legs and Arms. (2024). Journal of Sports Sciences, 16(60), 61-76. https://pessj.uodiyala.edu.iq/index.php/1/article/view/1795
• Rigoni, I., Bonci, T., Bifulco, P., & Fratini, A. (2022a). Characterisation of the transient mechanical response and the electromyographical activation of lower leg muscles in whole body vibration training. Scientific Reports, 12(1). https://doi.org/10.1038/s41598-022-10137-8
• Rigoni, I., Bonci, T., Bifulco, P., & Fratini, A. (2022b). Characterisation of the transient mechanical response and the electromyographical activation of lower leg muscles in whole body vibration training. Scientific Reports, 12(1). https://doi.org/10.1038/s41598-022-10137-8
• Safaa Abdel-Wahab Ismail, The Relationship of Some Anthropometric Measurements to the Hook Arc of the Snatch in Weightlifting. (2012). Journal of Sports Sciences, 4(3), 286-302. https://doi.org/10.26400/sp/10/9
• Safaa Abdulwahab Ismaeel, A., Falih Hashim Fenjan, A., & Rafid Habib Qadori, L. (n.d.). Biomechanical analysis of some variables and EMG of the muscles during the performance of the snatch lift in weightlifting. International Journal of Psychosocial Rehabilitation, 24, 2020.
• Shiri, R., Coggon, D., & Falah-Hassani, K. (2018). Exercise for the prevention of low back and pelvic girdle pain in pregnancy: A meta-analysis of randomized controlled trials. In European Journal of Pain (United Kingdom) (Vol. 22, Issue 1, pp. 19–27). Blackwell Publishing Ltd. https://doi.org/10.1002/ejp.1096
• Uwamahoro, R., Sundaraj, K., & Subramaniam, I. D. (2021). Assessment of muscle activity using electrical stimulation and mechanomyography: a systematic review. In BioMedical Engineering Online (Vol. 20, Issue 1). BioMed Central Ltd. https://doi.org/10.1186/s12938-020-00840-w
• Varesco, G., Lapole, T., Royer, N., Singh, B., Parent, A., Féasson, L., Millet, G. Y., & Rozand, V. (2022). Performance fatigability during isometric vs. concentric quadriceps fatiguing tasks in men and women. Journal of Electromyography and Kinesiology, 67, 102715. https://doi.org/10.1016/J.JELEKIN.2022.102715
• Wakeling, J. M., Nigg, B. M., & Rozitis, A. I. (2002). Muscle activity damps the soft tissue resonance that occurs in response to pulsed and continuous vibrations. Journal of Applied Physiology, 93(3), 1093–1103. https://doi.org/10.1152/japplphysiol.00142.2002
• Way, K. L., Lee, A. S., Twigg, S. M., & Johnson, N. A. (2021). The effect of acute aerobic exercise on central arterial stiffness, wave reflections, and hemodynamics in adults with diabetes: A randomized cross-over design. Journal of Sport and Health Science, 10(4), 499–506. https://doi.org/10.1016/J.JSHS.2020.02.009
• Wu, C., Yan, Y., Cao, Q., Fei, F., Yang, D., Lu, X., Xu, B., Zeng, H., & Song, A. (2020). SEMG Measurement Position and Feature Optimization Strategy for Gesture Recognition Based on ANOVA and Neural Networks. IEEE Access, 8. https://doi.org/10.1109/ACCESS.2020.2982405
• Yamada, Y., Hirata, K., Iida, N., Kanda, A., Shoji, M., Yoshida, T., Myachi, M., & Akagi, R. (2022). Membrane capacitance and characteristic frequency are associated with contractile properties of skeletal muscle. Medical Engineering and Physics, 106. https://doi.org/10.1016/j.medengphy.2022.103832
• Zaina, F., Côté, P., Cancelliere, C., Di Felice, F., Donzelli, S., Rauch, A., Verville, L., Negrini, S., & Nordin, M. (2023). A Systematic Review of Clinical Practice Guidelines for Persons With Non-specific Low Back Pain With and Without Radiculopathy: Identification of Best Evidence for Rehabilitation to Develop the WHO’s Package of Interventions for Rehabilitation. Archives of Physical Medicine and Rehabilitation. https://doi.org/10.1016/J.APMR.2023.02.022