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Assessment of passive musculoskeletal stiffness during and after a 10k running trial

Guillemin, Paul ; Liegeois, Cédrine
(2023)

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Guillemin_Paul_39671700__Liegeois_Cédrine_13971800_2022-2023.pdf
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Guillemin_Paul_39671700__Liegeois_Cédrine_13971800_2022-2023_Annexe1.pdf
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Details

Supervisors
Nguyen, Anh Phong
Faculty
Faculté des sciences de la motricité
Degree label
Master [60] en kinésithérapie et réadaptation
Abstract
Introduction: The first aim of the study was to observe lower limb stiffness in healthy runners over a 10 km race at competitive pace and secondly to observe the anatomical characteristics of the Achilles tendon during the running event. Method: 20 participants (3 women / 17 men) ran for this study. Passive stiffness was measured on the Achilles tendon with and without a shoe, medial gastrocnemius, patellar tendon, and plantar fascia, using the MyotonPro. Measurements were taken before, during and after running. Results: Our results have shown that passive stiffness of the plantar fascia decreases significantly at rest. Nevertheless, it remains consistent for the Achilles tendon, patellar tendon, and the medial gastrocnemius. Conclusion: The results of this study do not allow us to confirm our initial hypothesis where we expected to observe a decrease in the stiffness of the different tissues during the race. Indeed, the stiffness of the AT, PT, MG remained constant during the race. However, the results showed a significant decrease in the stiffness of the PF, which could be explained by fatigue. However, it would be interesting to investigate why only the stiffness of the PF decreases and not that of the other tissues.