NCT06297317

Longitudinal Changes in Achilles Tendon and Medial Gastrocnemius Muscle Architecture During a 156-km Ultradistance Trail Running Event

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 55 (actual)
• Sponsor: University Hospital, Caen · Academic / Other
• Sex: All
• Age: 25 Years – 70 Years
• Healthy volunteers: —

Summary

This study aimed to assess the longitudinal changes in triceps surae muscle-tendon architecture to an ultra distance trail running. Experienced trail runners (N=55, 78% men, age: 45.2 \[13.5\] years) participated in a 156-km trail run (6000m climbing) consisting in six 26-km laps. The resting architectural properties of triceps surae muscle-tendon were measured using ultrasound imaging for Achille tendon cross-sectional area (AT CSA), medial gastrocnemius muscle pennation angle, thickness, length and fiber length. Measurements were performed the day before the race (Baseline), at 52-km (T1), at 104-km (T2), at 156-km (T3) and 12 hours after the race (H12).

Conditions

• Achilles Tendinopathy
• Calf Injury
• Sport Injury
• Lower Limb Injury

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	Ultrasound measurement of triceps surae muscle-tendon architecture	The resting plantar-flexors MTU architecture assessment was performed using a conventional B-mode and extended-field-of-view (EFOV) ultrasound imaging. Achille tendon cross-sectionnal area, Medial gastrocnemius thickness, pennation angle, fascicle length and muscle length were collected on the dominant lower limb.

Timeline

• Start date: 2021-11-11
• Primary completion: 2021-11-13
• Completion: 2024-02-01
• First posted: 2024-03-07
• Last updated: 2025-03-26

Locations

1 site across 1 country: France