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

Autor/inn/en	Coratella, Giuseppe; Longo, Stefano; Rampichini, Susanna; Limonta, Eloisa; Shokohyar, Sheida; Bisconti, Angela Valentina; Cè, Emiliano; Esposito, Fabio
Titel	Quadriceps and Gastrocnemii Anatomical Cross-Sectional Area and Vastus Lateralis Fascicle Length Predict Peak-Power and Time-to-Peak-Power
Quelle	In: Research Quarterly for Exercise and Sport, 91 (2020) 1, S.158-165 (8 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Coratella, Giuseppe) ORCID (Longo, Stefano) ORCID (Rampichini, Susanna) ORCID (Limonta, Eloisa) ORCID (Cè, Emiliano) ORCID (Esposito, Fabio)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0270-1367
DOI	10.1080/02701367.2019.1648745
Schlagwörter	Human Body; Anatomy; Muscular Strength; Exercise Physiology; Tests; Athletes; Measurement + Suchen Sie Ihr Suchwort? Menschlicher Körper; Anatomie; Muskelkraft; Sportphysiologie; Examination; Prüfung; Examen; Athlet; Messverfahren
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 < 0.001), gastrocnemii ACSA (r = 0.811, p < 0.001), "vastus lateralis" (r = 0.787, p < 0.001) and "gastrocnemius medialis" pennation angle (r = 0.638, p < 0.003). Multiple regression revealed that quadriceps and gastrocnemii ACSA accounted for 85% (R[superscript 2]= 0.85) of peak-power variance. Time-to-peak-power showed "very large" (r = -0.868, p < 0.001) and "large" correlation (r = -0.680, p = 0.001) with VL and GM fascicle length, respectively. Multiple regression analysis revealed that VL fascicle length explained 75% (R[superscript 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. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01