Publication:
Physiological stress against simulated 200-m and 500-m sprints in world-class boat paddlers

0
0

Issued Date

2020

Resource Type

Article

File Type

application/pdf

ISSN

3044920

DOI

10.4103/CJP.CJP_87_19

Other identifier(s)

2-s2.0-85079360484

Rights Holder(s)

Scopus

Bibliographic Citation

Chinese Journal of Physiology. Vol 63, No.1 (2020), p.15-20

Suggested Citation

Senakham N., Punthipayanon S., Senakham T., Sriyabhaya P., Sriramatr S., Kuo C.-H. Physiological stress against simulated 200-m and 500-m sprints in world-class boat paddlers. Chinese Journal of Physiology. Vol 63, No.1 (2020), p.15-20. doi:10.4103/CJP.CJP_87_19 Retrieved from: https://hdl.handle.net/20.500.14740/4760

Title

Physiological stress against simulated 200-m and 500-m sprints in world-class boat paddlers

Author(s)

Senakham N.
 Punthipayanon S.
 Senakham T.
 Sriyabhaya P.
 Sriramatr S.
 Kuo C.-H.

Abstract

To characterize physiological stress response against simulated short-distance sprints among world-class paddlers. Thirteen dragon boat gold medalists performed 200-m and 500-m simulated race trials on a kayak ergometer in a randomized, counter-balanced, crossover fashion. During the 200-m and 500-m sprints, oxygen consumption (VO2) increased from 8.7 to 31.2 ml/kg/min and from 8.0 to 32.7 ml/kg/min within 60 s, respectively. A plateau of 35 ml/kg/min below maximal VO2(VO2max) (39.7 ± 6.3 ml/kg/min) was reached at 75 s during the 500-m sprint. Respiratory exchange ratio dropped from 1.21 ± 0.16 to 1.07 ± 0.12 and 1.28 ± 0.13 to 1.06 ± 0.16 at 45 s, and resurged to 1.17 and 1.28 at the end of 200-m and 500-m sprints with lactate concentration reached 13 ± 2 and 15 ± 2 mM. Aerobic energy contribution to paddling power increases from ~10% for the first 15 s to ~80% for the last 15 s during the 500-m trial. Postexercise plasma thiobarbituric acid reactive substances increased by 376% and 543% above baseline after 200-m and 500-m trials (P < 0.001, between trials), respectively, followed by quick returns to baseline in 30 min (P < 0.001). Increased plasma creatine kinase (+48%) was observed only after the 500-m trial (P < 0.001, between trials), not 200-m trial. Our data suggest that muscle damage occurred only when maximal sprinting exceeding 2 min, highlighting an importance of volume than intensity on exercise-induced muscle damage. © 2020 Chinese Physiological Society. All rights reserved.

Subject(s)

Creatine kinase
 Thiobarbituric acid reactive substance
 Lactic acid
 Adult
 Article
 Athlete
 Blood level
 Boat paddler
 Controlled study
 Exercise intensity
 Human
 Human experiment
 Muscle injury
 Oxygen consumption
 Physical activity
 Physiological stress
 Race
 Rowing
 Simulation
 Sprint
 Oxygen consumption
 Randomized controlled trial
 Ship
 Sport
 Humans
 Lactic Acid
 Oxygen Consumption
 Ships
 Sports
 Stress, Physiological

View online Resources

Research Projects

Organizational Units

Journal Issue

URI

https://hdl.handle.net/20.500.14740/4760

Collections

Scopus: Year 1983-2021

Endorsement

Review

Supplemented By

Referenced By