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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Performance and energy systems contributions during upper-body sprint interval exercise

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Author(s):
Franchini, Emerson [1] ; Takito, Monica Yuri [2] ; Dal'Molin Kiss, Maria Augusta Peduti [3]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Sch Phys Educ & Sport, Martial Arts & Combat Sports Res Grp, Sao Paulo - Brazil
[2] Univ Sao Paulo, Sch Phys Educ & Sport, Human Movement Pedag Dept, Av Prof Melo Moraes 65, BR-05508900 Sao Paulo, SP - Brazil
[3] Univ Sao Paulo, Sch Phys Educ & Sport, Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: JOURNAL OF EXERCISE REHABILITATION; v. 12, n. 6, p. 535-541, DEC 2016.
Web of Science Citations: 6
Abstract

The main purpose of this study was to investigate the performance and energy systems contribution during four upper-body Wingate tests interspersed by 3-min intervals. Fourteen well-trained male adult Judo athletes voluntarily took part in the present study. These athletes were from state to national level, were in their competitive period, but not engaged in any weight loss procedure. Energy systems contributions were estimated using oxygen uptake and blood lactate measurements. The main results indicated that there was higher glycolytic contribution compared to oxidative (P<0.001) during bout 1, but lower glycolytic contribution was observed compared to the phosphagen system (adenosine triphosphate-creatine phosphate, ATP-PCr) contribution during bout 3 (P<0.001), lower glycolytic contribution compared to oxidative and ATP-PCr (P<0.001 for both comparisons) contributions during bout 4 and lower oxidative compared to ATP-PCr during bout 4 (P=0.040). For the energy system contribution across Wingate bouts, the ATP-PCr contribution during bout 1 was lower than that observed during bout 4 (P=0.005), and the glycolytic system presented higher percentage contribution in the first bout compared to the third and fourth bouts (P<0.001 for both comparisons), and higher percentage participation in the second compared to the fourth bout (P<0.001). These results suggest that absolute oxidative and ATP-PCr participations were kept constant across Wingate tests, but there was an increase in relative participation of ATP-PCr in bout 4 compared to bout 1, probably due to the partial phosphocreatine resynthesis during intervals and to the decreased glycolytic activity. (AU)

FAPESP's process: 12/00220-8 - Effect of high-intensity interval training on physiological and performance responses in judo athletes
Grantee:Emerson Franchini
Support Opportunities: Regular Research Grants