The effect of acute exercise and psychosocial stress on fine motor skills and testosterone concentration in the saliva of high school students

Wegner, Mirko; Koedijker, Johan M.; Budde, Henning (2014). The effect of acute exercise and psychosocial stress on fine motor skills and testosterone concentration in the saliva of high school students. PLoS ONE, 9(3), e92953. Public Library of Science 10.1371/journal.pone.0092953

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Little is known about the influence of different stressors on fine motor skills, the concentration of testosterone (T), and their interaction in adolescents. Therefore, 62 high school students aged 14–15 years were randomly assigned to two experimental groups (exercise, psychosocial stress) and a control group. Exercise stress was induced at 65–75% of the maximum heart rate by running for 15 minutes (n = 24). Psychosocial stress was generated by an intelligence test (HAWIK- IV), which was uncontrollable and characterized by social-evaluative-threat to the students (n=21). The control group followed was part of a regular school lesson with the same duration (n = 28). Saliva was collected after a normal school lesson (pre-test) as well as after the intervention/control period (post-test) and was analyzed for testosterone. Fine motor skills were assessed pre- and post-intervention using a manual dexterity test (Flower Trail) from the Movement Assessment Battery for Children-2. A repeated measure ANCOVA including gender as a covariate revealed a significant group by test interaction, indicating an increase in manual dexterity only for the psychosocial stress group. Correlation analysis of all students shows that the change of testosterone from pre- to post-test was directly linked (r = 2.31, p = .01) to the changes in manual dexterity performance. Participants showing high increases in testosterone from pre- to post-test made fewer mistakes in the fine motor skills task. Findings suggest that manual dexterity increases when psychosocial stress is induced and that improvement of manual dexterity performance corresponds with the increase of testosterone.

Item Type:

Journal Article (Original Article)

Division/Institute:

07 Faculty of Human Sciences > Institute of Sport Science (ISPW)
07 Faculty of Human Sciences > Institute of Sport Science (ISPW) > Sport Science I
07 Faculty of Human Sciences > Institute of Sport Science (ISPW) > Sport Science IV

UniBE Contributor:

Wegner, Mirko and Koedijker, Johannes

Subjects:

100 Philosophy > 150 Psychology
500 Science > 570 Life sciences; biology
700 Arts > 790 Sports, games & entertainment

ISSN:

1932-6203

Publisher:

Public Library of Science

Language:

English

Submitter:

Mirko Wegner

Date Deposited:

12 May 2014 13:40

Last Modified:

05 Dec 2014 14:10

Publisher DOI:

10.1371/journal.pone.0092953

Related URLs:

BORIS DOI:

10.7892/boris.48815

URI:

https://boris.unibe.ch/id/eprint/48815

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