Purpose: The current study investigated the role of quadriceps and gastrocnemii size and vastus lateralis and gastrocnemius medialis muscle architecture in peak-power and time-to-peak-power exerted in an all-out Wingate test. Twenty-one amateur cyclists were recruited. Methods: Quadriceps and gastrocnemii anatomical cross-sectional area (ACSA), and vastus lateralis and gastrocnemius medialis pennation angle and fascicle length were measured using ultrasound. Relative peak-power (normalized per body mass) and time-to-peak-power were measured during a 30s all-out test. Results: Relative peak-power was correlated with quadriceps ACSA (r = 0.896, p < .001), gastrocnemii ACSA (r = 0.811, p < .001), vastus lateralis (r = 0.787, p < .001) and gastrocnemius medialis pennation angle (r = 0.638, p < .003). Multiple regression revealed that quadriceps and gastrocnemii ACSA accounted for 85% (R-2= 0.85) of peak-power variance. Time-to-peak-power showed very large (r = ?0.868, p < .001) and large correlation (r = ?0.680, p = .001) with VL and GM fascicle length, respectively. Multiple regression analysis revealed that VL fascicle length explained 75% (R-2= 0.75) of the time-to-peak-power variance. Conclusions: Quadriceps and gastrocnemii ACSA largely explained relative peak-power in an all-out Wingate test. Vastus lateralis fascicle length was the main predictor of the time-to-peak-power. Muscle architecture characteristics seem to be involved in the power generating capacity.

Quadriceps and Gastrocnemii Anatomical Cross-Sectional Area and Vastus Lateralis Fascicle Length Predict Peak-Power and Time-To-Peak-Power / G. Coratella, S. Longo, S. Rampichini, E. Limonta, S. Shokohyar, A.V. Bisconti, E. Ce', F. Esposito. - In: RESEARCH QUARTERLY FOR EXERCISE AND SPORT. - ISSN 0270-1367. - (2019), pp. 1-8. [Epub ahead of print]

Quadriceps and Gastrocnemii Anatomical Cross-Sectional Area and Vastus Lateralis Fascicle Length Predict Peak-Power and Time-To-Peak-Power

Coratella, Giuseppe;Longo, Stefano;Rampichini, Susanna;Limonta, Eloisa;Shokohyar, Sheida;Bisconti, Angela Valentina;Cè, Emiliano;Esposito, Fabio
2019

Abstract

Purpose: The current study investigated the role of quadriceps and gastrocnemii size and vastus lateralis and gastrocnemius medialis muscle architecture in peak-power and time-to-peak-power exerted in an all-out Wingate test. Twenty-one amateur cyclists were recruited. Methods: Quadriceps and gastrocnemii anatomical cross-sectional area (ACSA), and vastus lateralis and gastrocnemius medialis pennation angle and fascicle length were measured using ultrasound. Relative peak-power (normalized per body mass) and time-to-peak-power were measured during a 30s all-out test. Results: Relative peak-power was correlated with quadriceps ACSA (r = 0.896, p < .001), gastrocnemii ACSA (r = 0.811, p < .001), vastus lateralis (r = 0.787, p < .001) and gastrocnemius medialis pennation angle (r = 0.638, p < .003). Multiple regression revealed that quadriceps and gastrocnemii ACSA accounted for 85% (R-2= 0.85) of peak-power variance. Time-to-peak-power showed very large (r = ?0.868, p < .001) and large correlation (r = ?0.680, p = .001) with VL and GM fascicle length, respectively. Multiple regression analysis revealed that VL fascicle length explained 75% (R-2= 0.75) of the time-to-peak-power variance. Conclusions: Quadriceps and gastrocnemii ACSA largely explained relative peak-power in an all-out Wingate test. Vastus lateralis fascicle length was the main predictor of the time-to-peak-power. Muscle architecture characteristics seem to be involved in the power generating capacity.
muscle architecture; muscle size; fascicle angle; anaerobic power
Settore M-EDF/02 - Metodi e Didattiche delle Attivita' Sportive
ott-2019
Article (author)
File in questo prodotto:
File Dimensione Formato  
RQES_proof.pdf

embargo fino al 01/04/2021

Tipologia: Post-print, accepted manuscript ecc. (versione accettata dall'editore)
Dimensione 1.38 MB
Formato Adobe PDF
1.38 MB Adobe PDF Visualizza/Apri
Quadriceps and Gastrocnemii Anatomical Cross Sectional Area and Vastus Lateralis Fascicle Length Predict Peak Power and Time To Peak Power.pdf

non disponibili

Tipologia: Publisher's version/PDF
Dimensione 1.67 MB
Formato Adobe PDF
1.67 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/682323
Citazioni
  • ???jsp.display-item.citation.pmc??? 5
  • Scopus 9
  • ???jsp.display-item.citation.isi??? 6
social impact