Impact of long-lasting moderate-intensity stage cycling event on cardiac function in young female athletes: A case study.

Autor: Le Douairon Lahaye S; M2S Laboratory, ENS Rennes, University of Rennes 2, Rennes, France., Kervio G; CIC-CIT INSERM 1414, Rennes, France., Menard V; M2S Laboratory, ENS Rennes, University of Rennes 2, Rennes, France., Barrero A; M2S Laboratory, ENS Rennes, University of Rennes 2, Rennes, France., Lachard T; Department of Sports Medicine, University Hospital of Rennes, Rennes, France., Carrault G; CIC-CIT INSERM 1414, Rennes, France.; INSERM, LTSI-UMR1099, University of Rennes 1, Rennes, France., Matelot D; INSERM, LTSI-UMR1099, University of Rennes 1, Rennes, France., Carré F; Department of Sports Medicine, University Hospital of Rennes, Rennes, France.; INSERM, LTSI-UMR1099, University of Rennes 1, Rennes, France., Schnell F; CIC-CIT INSERM 1414, Rennes, France.; Department of Sports Medicine, University Hospital of Rennes, Rennes, France.; INSERM, LTSI-UMR1099, University of Rennes 1, Rennes, France.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2022 Oct 04; Vol. 17 (10), pp. e0275332. Date of Electronic Publication: 2022 Oct 04 (Print Publication: 2022).
DOI: 10.1371/journal.pone.0275332
Abstrakt: Purpose: Effects of intense and/or prolonged exercise have been studied extensively in male athletes. Nevertheless, data are scare on the effect of long duration events on cardiac function in female athletes. Our aim was to investigate the effect of a long-lasting moderate-intensity stage cycling event on cardiac function of young female athletes.
Methods: Seven well-trained female cyclists were included. They completed a cycling event of 3529 km on 23 days. All underwent an echocardiography on 6 time-points (baseline and at the arrival of day (D) 3, 7, 12, 13 and 23). Cardiac function was assessed by conventional echocardiography, tissue Doppler imaging and speckle tracking techniques. Daily exercise load was determined by heart rate (HR), power output and rate of perceived exertion data (RPE, Borg scale).
Results: All stages were mainly done at moderate intensity (average HR: 65% of maximal, average aerobic power output: 36% of maximal, average RPE: 4). Resting HR measured at the time of echocardiography did not vary during the event. Resting cardiac dimensions did not significantly change during the 23 days of cycling. No significant modification of cardiac function, whatever the studied cavity, were observed all along the event.
Conclusion: The results suggest that, in the context of our case study, the long-lasting moderate-intensity stage cycling event was not associated with cardiac function alteration. Nevertheless, we must be careful in interpreting them due to the limits of an underpowered study.
Competing Interests: The authors declare that they have no conflict of interest.
Databáze: MEDLINE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje