Biomechanical and Physiological Responses to 120 Min. of Soccer-Specific Exercise

Autor/inn/en	Field, Adam; Corr, Liam David; Haines, Matthew; Lui, Steve; Naughton, Robert; Page, Richard Michael; Harper, Liam David
Titel	Biomechanical and Physiological Responses to 120 Min. of Soccer-Specific Exercise
Quelle	In: Research Quarterly for Exercise and Sport, 91 (2020) 4, S.692-704 (13 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Field, Adam) ORCID (Corr, Liam David) ORCID (Haines, Matthew) ORCID (Lui, Steve) ORCID (Naughton, Robert) ORCID (Page, Richard Michael) ORCID (Harper, Liam David)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0270-1367
DOI	10.1080/02701367.2019.1698698
Schlagwörter	Biomechanics; Exercise Physiology; Metabolism; Athletes; Team Sports; Measurement Equipment; Test Reliability; Biochemistry; Correlation; Fatigue (Biology); College Athletics; Dietetics + Suchen Sie Ihr Suchwort? Biomechanik; Sportphysiologie; Stoffwechsel; Athlet; Mannschaftssport; Messinstrument; Testreliabilität; Biochemie; Korrelation; Fatigue; Ermüdung; College athletes; Collegesport; Hochschulsport; Ernährungslehre
Abstract	Purpose: The purpose of the study is to investigate biomechanical and physiological responses to soccer-specific exercise incorporating an extra-time period (ET) and assess the test-retest reliability of these responses. Methods: Twelve soccer players performed 120 min of soccer-specific exercise. Tri-axial (PL[subscript Total]) and uni-axial PlayerLoad™ in the vertical (PL[subscript V]), anterior-posterior (PL[subscript A-P]), and medial-lateral (PL[subscript M-L]) planes were monitored using a portable accelerometer. Likewise, respiratory exchange ratio (RER) was recorded throughout exercise. At the end of each 15-min period, players provided differential ratings of perceived exertion for legs (RPE-L), breathlessness (RPE-B) and overall (RPE-O), and capillary samples were taken to measure blood lactate (BLa) concentrations. The soccer-specific exercise was completed twice within 7 days to assess reliability. Results: A main effect for time was identified for PL[subscript Total] (p = 0.045), PL[subscript V] (p = 0.002), PL[subscript A-P] (p = 0.011), RER (p = 0.001), RPE-L (p = 0.001), RPE-O (p = 0.003), and CMJ (p = 0.020). A significant increase in PL[subscript Total] (234 ± 34 au) and decrease in RER (0.87 ± 0.03) was evident during 105-120 versus 0-15 min (215 ± 25 au; p = 0.002 and 0.92 ± 0.02; p = 0.001). Coefficients of variations were <10% and Pearson's correlation coefficient demonstrated moderate-to-very strong (0.33-0.99) reliability for all PL variables, RPE-B, BLa, and RER. Conclusions: These results suggest that mechanical efficiency is compromised and an increased rate of lipolysis is observed as a function of exercise duration, particularly during ET. These data have implications for practitioners interested in fatigue-induced changes during ET. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01