Monitoring Muscle-Tendon Adaptation Over Several Years of Athletic Training and Competition in Elite Track and Field Jumpers

Journal article

Karamanidis, K. and Epro, G. (2020). Monitoring Muscle-Tendon Adaptation Over Several Years of Athletic Training and Competition in Elite Track and Field Jumpers. Frontiers in physiology. 11, p. 607544. https://doi.org/10.3389/fphys.2020.607544
AuthorsKaramanidis, K. and Epro, G.
AbstractDifferences in muscle and tendon responsiveness to mechanical stimuli and time courses of adaptive changes may disrupt the interaction of the musculotendinous unit (MTU), increasing the risk for overuse injuries. We monitored training-induced alterations in muscle and tendon biomechanical properties in elite jumpers over 4 years of athletic training to detect potential non-synchronized adaptations within the triceps surae MTU. A combined cross-sectional and longitudinal investigation over 4 years was conducted by analyzing triceps surae MTU mechanical properties in both legs via dynamometry and ultrasonography in 67 elite track and field jumpers and 24 age-matched controls. Fluctuations in muscle and tendon adaptive changes over time were quantified by calculating individual residuals. The cosine similarity of the relative changes of muscle strength and tendon stiffness between sessions served as a measure of uniformity of adaptive changes. Our cross-sectional study was unable to detect clear non-concurrent differences in muscle strength and tendon stiffness in elite jumpers. However, when considering the longitudinal data over several years of training most of the jumpers demonstrated greater fluctuations in muscle strength and tendon stiffness and hence tendon strain compared to controls, irrespective of training period (preparation vs. competition). Moreover, two monitored athletes with chronic Achilles tendinopathy showed in their affected limb lower uniformity in MTU adaptation as well as higher fluctuations in tendon strain over time. Habitual mechanical loading can affect the MTU uniformity in elite jumpers, leading to increased mechanical demand on the tendon over an athletic season and potentially increased risk for overuse injuries.
KeywordsPhysiology; Achilles tendon; triceps surae; time course; imbalance; athletic training; tendinopathy
Year2020
JournalFrontiers in physiology
Journal citation11, p. 607544
PublisherFrontiers Media
ISSN1664-042X
Digital Object Identifier (DOI)https://doi.org/10.3389/fphys.2020.607544
Publication dates
Online16 Dec 2020
Publication process dates
Accepted27 Nov 2020
Deposited04 Jan 2021
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Open
Licensehttp://creativecommons.org/licenses/by/4.0/
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Koenig, M, Epro, G, McCrum, C, Bädorf, M, Schade, F and Karamanidis, K (2017). Monitoring muscle-tendon adaptation in elite athletes: Preliminary data from a 1-year longitudinal investigation. 22nd annual Congress of the European College of Sport Science (ECSS). Essen 05 - 08 Jul 2017
Achilles tendon mechanosensitivity is preserved in old age: In vivo evidence from a 1.5 years long resistance training intervention
Epro, G, Mierau, A, Doerner, J, Luetkens, J, Scheef, L, Kukuk, G, Boecker, H, Maganaris, C, Brüggemann, G-P and Karamanidis, K (2017). Achilles tendon mechanosensitivity is preserved in old age: In vivo evidence from a 1.5 years long resistance training intervention. 22nd annual Congress of the European College of Sport Science. Essen, Germany 05 - 08 Jul 2017
Loading rate and contraction duration effects on in vivo human Achilles tendon mechanical properties.
McCrum, C, Oberländer, KD, Epro, G, Krauss, P, James, DC, Reeves, N and Karamanidis, K (2017). Loading rate and contraction duration effects on in vivo human Achilles tendon mechanical properties. Clinical Physiology and Functional Imaging. 38 (3), pp. 517-523. https://doi.org/10.1111/cpf.12472
Locomotor stability and adaptation during perturbed walking across the adult female lifespan.
McCrum, C, Epro, G, Meijer, K, Zijlstra, W, Brüggemann, G-P and Karamanidis, K (2016). Locomotor stability and adaptation during perturbed walking across the adult female lifespan. Journal of Biomechanics. 49 (7), pp. 1244-1247. https://doi.org/10.1016/j.jbiomech.2016.02.051
Use of a Lucas-Kanade-Based Template Tracking Algorithm to Examine In Vivo Tendon Excursion during Voluntary Contraction Using Ultrasonography.
Karamanidis, K, Travlou, A, Krauss, P and Jaekel, U (2016). Use of a Lucas-Kanade-Based Template Tracking Algorithm to Examine In Vivo Tendon Excursion during Voluntary Contraction Using Ultrasonography. Ultrasound in Medicine and Biology. 42 (7), pp. 1689-1700. https://doi.org/10.1016/j.ultrasmedbio.2016.02.019
Visual and proprioceptive contributions to postural control of upright stance in unilateral vestibulopathy.
Eysel-Gosepath, K, McCrum, C, Epro, G, Brüggemann, G-P and Karamanidis, K (2016). Visual and proprioceptive contributions to postural control of upright stance in unilateral vestibulopathy. Somatosensory and Motor Research. 33 (2), pp. 72-78. https://doi.org/10.1080/08990220.2016.1178635
Matching participants for triceps surae mechanical properties eliminates age-related differences in drop jump performance
Koenig, M, Hemmers, S, McCrum, C, Epro, G, Ackermans, TMA, Hartmann, U and Karamanidis, K (2016). Matching participants for triceps surae mechanical properties eliminates age-related differences in drop jump performance. 11th Joint Conference on Motor Control & Learning, Biomechanics & Training of the German Society of Sports Sciences. Darmstadt, Germany 28 - 30 Sep 2016
Aging and the effects of a half marathon on Achilles tendon force-elongation relationship.
Ackermans, TMA, Epro, G, McCrum, C, Oberländer, KD, Suhr, F, Drost, MR, Meijer, K and Karamanidis, K (2016). Aging and the effects of a half marathon on Achilles tendon force-elongation relationship. European Journal of Applied Physiology. 116 (11-12), pp. 2281-2292. https://doi.org/10.1007/s00421-016-3482-z
Age-related differences in drop jump performance are eliminated when triceps surae mechanical properties are matched
Koenig, M, Hemmers, S, McCrum, C, Epro, G, Ackermans, TMA, Hartmann, U and Karamanidis, K (2016). Age-related differences in drop jump performance are eliminated when triceps surae mechanical properties are matched. Dutch Society for Movement Sciences (VvBN) PhD Day 2016. Maastricht 09 - 09 Nov 2016
Effect of exercise-induced enhancement of the leg-extensor muscle-tendon unit capacities on ambulatory mechanics and knee osteoarthritis markers in the elderly.
Karamanidis, K, Oberländer, KD, Niehoff, A, Epro, G and Brüggemann, G-P (2014). Effect of exercise-induced enhancement of the leg-extensor muscle-tendon unit capacities on ambulatory mechanics and knee osteoarthritis markers in the elderly. PLoS ONE. 9 (6). https://doi.org/10.1371/journal.pone.0099330