Changes in Muscle Architecture of Vastus Lateralis Muscle After an Alpine Snowboarding Race

Gianluca Vernillo, Cesare Pisoni, Luca M. Sconfienza, Gabriele Thiébat, Stefano Longo

Research output: Contribution to journalArticle

Abstract

Vernillo, G, Pisoni, C, Sconfienza, LM, Thiébat, G, and Longo, S. Changes in muscle architecture of vastus lateralis muscle after an alpine snowboarding race. J Strength Cond Res 31(1): 254-259, 2017-This study aimed to assess acute changes of vastus lateralis (VL) muscle architecture after an alpine snowboarding simulated race and to compare architecture characteristics between the front and rear legs on elite alpine snowboarders. Using ultrasonography, VL muscle thickness (MT), pennation angles (θ), and fascicle lengths (Lf) were assessed in 8 elite alpine snowboarders (25.6 ± 4.4 years; stature: 178.4 ± 9.8 cm; body mass: 78.1 ± 12.1 kg) before and directly after an alpine snowboarding simulated race under competition rules. Muscle thickness, θ, and Lf showed no meaningful changes (P > 0.05, differences reported as trivial) after the race for both legs. The rear leg tended to have a 14.0% lower θ (P = 0.04, differences rated as moderate) and a 13.6% higher Lf (P = 0.04, differences rated as moderate) compared with the front leg. Changes in muscle architecture are not observable immediately after an alpine snowboarding simulated race. The ∼14.0% difference in muscle architecture between the front and the rear leg suggests the presence of a morphological asymmetry in elite alpine snowboarders with direct implications for injury prevention and training prescription.

Original languageEnglish
Pages (from-to)254-259
Number of pages6
JournalJournal of Strength and Conditioning Research
Volume31
Issue number1
DOIs
Publication statusPublished - Jan 1 2017

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Skiing
Quadriceps Muscle
Muscles
Leg
Prescriptions
Ultrasonography
Wounds and Injuries

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Changes in Muscle Architecture of Vastus Lateralis Muscle After an Alpine Snowboarding Race. / Vernillo, Gianluca; Pisoni, Cesare; Sconfienza, Luca M.; Thiébat, Gabriele; Longo, Stefano.

In: Journal of Strength and Conditioning Research, Vol. 31, No. 1, 01.01.2017, p. 254-259.

Research output: Contribution to journalArticle

Vernillo, Gianluca ; Pisoni, Cesare ; Sconfienza, Luca M. ; Thiébat, Gabriele ; Longo, Stefano. / Changes in Muscle Architecture of Vastus Lateralis Muscle After an Alpine Snowboarding Race. In: Journal of Strength and Conditioning Research. 2017 ; Vol. 31, No. 1. pp. 254-259.
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