Int J Sports Med 2007; 28(7): 595-601
DOI: 10.1055/s-2007-964852
Training & Testing

© Georg Thieme Verlag KG Stuttgart · New York

The Effect of High Load Training on Psychomotor Speed

E. Nederhof1 , 3 , K. Lemmink1 , 3 , J. Zwerver2 , 3 , T. Mulder1
  • 1Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, , Groningen, Netherlands
  • 2Center for Sports Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
  • 3University Center for Sports, Exercise and Health, University Medical Center Groningen, University of Groningen, , Groningen, Netherlands
Further Information

Publication History

accepted after revision July 11, 2006

Publication Date:
20 March 2007 (online)


The purpose of the present study was to investigate whether overreached athletes show psychomotor slowness after a period of high load training. Fourteen well-trained cyclists (10 male, 4 female, mean age 25.3 [SD = 4.1] years, mean maximal oxygen consumption 65.5 [SD = 8.1] ml/kg · min) performed a maximal graded exercise test on a cycle ergometer, filled out two questionnaires and performed two tests of psychomotor speed before and after high load training and after two weeks of recovery training. A control group performed the two tests of psychomotor speed on the same occasions without changing physical activity levels. Five cyclists were classified as functional overreached, seven cyclists were classified as well-trained and two cyclists were excluded from analysis. Results showed no significant differences in psychomotor speed between the control, well-trained and functional overreached groups on the three measurements. A trend towards psychomotor slowness was found for the functional overreached compared to the control group after high load training. Additional research with more subjects and a greater degree of overload training is necessary to more conclusively determine if psychomotor speed can be used as an early marker for overtraining.


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M.Sc. Esther Nederhof

Center for Human Movement Sciences
University Medical Center Groningen
University of Groningen

P.O. Box 196

9700 AD Groningen