SciELO - Scientific Electronic Library Online

 
vol.21 issue1Psychometric Properties of The Wagnild and Young Resilience Scale in Costa Rican Older AdultsBibliometric analysis of research in genetic and anterior cruciate ligament rupture in sport: a review author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • Have no similar articlesSimilars in SciELO

Share


MHSalud

On-line version ISSN 1659-097X

Abstract

PEREIRA SABOROSA, Guilherme et al. Determinants of physical performance and physiological responses during an Official cross-country marathon of mountain-biking (Xcm-Mtb). MHSalud [online]. 2024, vol.21, n.1, pp.50-66. ISSN 1659-097X.  http://dx.doi.org/10.15359/mhs.21-1.16622.

Introduction:

The variables determinants of physical performance in cross-country marathon of mountain biking (XCMMTB) are still unknown.

Objective:

We aimed to verify the training control variables and the physiological responses in an official XCM-MTB race.

Material and methods:

13 athletes (11 men and 2 women; 33.3 ± 12.7 years of age) participated in this study. It was conducted during an official XCM-MTB in Brazil (route of 70 km). The heart rate (HR), altimetry, velocity, temperature, pacing, and power were obtained every 10 km travelled by the STRAVA application. Multiple linear regression analysis was performed to verify whether the variables could predict physical performance.

Results:

The athletes maintained constant HR elevation in the corresponding zone 80% HRmax. They also presented a variation in the pacing (F = 35.82; p < 0.001; d = 0.66) and power (F = 7.20; p < 0.001; d = 0.18) showing higher values in the last 10 km. Only pacing can be considered a predictor of the physical performance (β = 0.958; t = 7.30; p < 0.001), specifically the one at 20 km (F = 10.23; p = 0.004; R2 = 0.82).

Conclusion:

The study concluded that the analyzed variables are reliable for the performance control in an official XCMMTB race. HR and power are variables that can be used to prescribe and control training, as they change according to the requirements of the race. Power can also be used as a performance predictor as it is directly influenced by terrain.

Keywords : training; heart rate; physical performance; power.

        · abstract in Spanish | Portuguese     · text in English     · English ( pdf )