Association between running biomechanics and lower limb musculotendinous changes over an adolescent marathon training program.

Autor: DeJong Lempke AF; Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University School of Medicine, Richmond, VA, United States; Institute for Women's Health, Virginia Commonwealth University, Richmond, VA, United States. Electronic address: Alexandra.lempke@vcuhealth.org., Hunt DL; Division of Sports Medicine, Department of Orthopedics, Boston Children's Hospital, Boston, MA, United States; Micheli Center for Sports Injury Prevention, Waltham, MA, United States., Willwerth SB; The Warren Alpert Medical School, Providence, RI, United States., d'Hemecourt PA; Division of Sports Medicine, Department of Orthopedics, Boston Children's Hospital, Boston, MA, United States; Harvard Medical School, Harvard, MA, United States., Meehan WP 3rd; Division of Sports Medicine, Department of Orthopedics, Boston Children's Hospital, Boston, MA, United States; Micheli Center for Sports Injury Prevention, Waltham, MA, United States; Harvard Medical School, Harvard, MA, United States., Whitney KE; Division of Sports Medicine, Department of Orthopedics, Boston Children's Hospital, Boston, MA, United States; Harvard Medical School, Harvard, MA, United States.
Jazyk: angličtina
Zdroj: Gait & posture [Gait Posture] 2024 Dec 07; Vol. 117, pp. 16-23. Date of Electronic Publication: 2024 Dec 07.
DOI: 10.1016/j.gaitpost.2024.12.005
Abstrakt: Background: Prospective musculotendinous changes have been observed among adolescents completing marathon training programs. However, examinations of potential factors influencing musculotendinous characteristics do not currently exist. Evaluations of biomechanical parameters and the influence on musculotendinous features and changes over time are warranted.
Research Question: What are the relationships between adolescent running biomechanics and 1) lower extremity musculotendinous characteristics cross-sectionally, and 2) changes in musculotendinous properties over 6-months?
Methods: Thirty-three adolescent runners participated in this study (19 F, 14 M; 15.8 ± 1.6 years). Ultrasound images of lower extremity musculotendinous structures were obtained to determine thickness and echogenicity. Following ultrasound measures, outdoor running biomechanics were assessed using wearable sensors to collect spatiotemporal, kinetic, and kinematic measures. A subset of participants had repeat ultrasound evaluations following a 6-month running program (n = 11; 6 F, 5 M). Hierarchical linear models were used to assess the relationships between biomechanics and ultrasound measures. Pearson's correlations were used to assess the relationship between biomechanics the change in musculotendinous characteristics (baseline to 6-months).
Results: The strongest relationships between measures were for the Achilles tendon (R 2 =0.39, F=0.85, p = 0.10), and flexor digitorum brevis (R 2 =0.38, F=2.38, p = 0.06). The interaction between pronation excursion and velocity was a significant predictor for Achilles tendon thickness (p = 0.03), and medial gastrocnemius thickness (p = 0.05). Contact time was a significant predictor for intrinsic foot muscle thickness (p = 0.01). There were moderate correlations across biomechanical measures and changes in musculotendinous thickness and echogenicity.
Significance: Biomechanical characteristics often noted with running-related injuries were moderately related to tissue-level characteristics, and changes during running training.
Competing Interests: Declaration of Competing Interest Dr. Meehan receives royalties from 1) ABC-Clio publishing for the sale of his books, Kids, Sports, and Concussion: A guide for coaches and parents, and Concussions; 2) Springer International for the book Head and Neck Injuries in Young Athlete and 3) Wolters Kluwer for working as an author for UpToDate. His research is funded, in part, by philanthropic support from the National Hockey League Alumni Association through the Corey C. Griffin Pro-Am Tournament and a grant from the National Football League. We have nothing else to disclose.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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