G de Groot
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Explore the profile of G de Groot including associated specialties, affiliations and a list of published articles.
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103
Citations
789
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Recent Articles
1.
Maes J, de Groot G
Behav Processes
. 2003 Jan;
61(1-2):57-68.
PMID: 12543483
Two experiments examined the effect of the presentation of an irregular, moderate intensity auditory stimulus ('noise') on the performance of rats in an operant discrimination task. In Experiment 1, rats...
2.
Bijker K, de Groot G, Hollander A
Eur J Appl Physiol
. 2002 Oct;
87(6):556-61.
PMID: 12355196
Delta (delta) efficiency is defined as the ratio of an increment in the external mechanical power output to the increase in metabolic power required to produce it. The purpose of...
3.
Bijker K, de Groot G, Hollander A
Med Sci Sports Exerc
. 2001 Aug;
33(9):1546-51.
PMID: 11528345
Purpose: The purpose of the present study was to compare delta efficiencies of running with cycling, while several factors that can possibly influence delta efficiency were excluded. Methods: Twelve subjects...
4.
Houdijk H, Wijker A, de Koning J, Bobbert M, de Groot G
Med Sci Sports Exerc
. 2001 Mar;
33(3):499-504.
PMID: 11252080
Purpose: Reducing ice friction was one of the motives for developing the klapskate. However, the magnitude of power dissipation that occurs with conventional skates when a skater plantar flexes his...
5.
Houdijk H, Heijnsdijk E, de Koning J, de Groot G, Bobbert M
Eur J Appl Physiol
. 2001 Jan;
83(4 -5):283-8.
PMID: 11138565
The present study investigates which physiological sources support the increase in mechanical power output (W out) that can be obtained using klapskates in speed skating. It was hypothesized that the...
6.
de Koning J, Houdijk H, de Groot G, Bobbert M
J Biomech
. 2000 Jul;
33(10):1225-9.
PMID: 10899331
No abstract available.
7.
Houdijk H, de Koning J, de Groot G, Bobbert M, And , van Ingen Schenau G
Med Sci Sports Exerc
. 2000 Mar;
32(3):635-41.
PMID: 10731006
Purpose: Personal and world records in speed skating improved tremendously after the introduction of the klapskate, which allows the foot to plantar flex at the end of the push-off while...
8.
Berger M, Hollander A, de Groot G
J Sports Sci
. 1999 Mar;
17(2):97-105.
PMID: 10069266
To evaluate the propulsive forces in front crawl arm swimming, derived from a three-dimensional kinematic analysis, these values were compared with mean drag forces. The propulsive forces during front crawl...
9.
Carlsson R, Dent J, Watts R, Riley S, Sheikh R, Hatlebakk J, et al.
Eur J Gastroenterol Hepatol
. 1998 May;
10(2):119-24.
PMID: 9581986
Objective: To assess the efficacy of omeprazole in patients presenting with troublesome reflux symptoms. Design: Randomized, double-blind, parallel-group, placebo-controlled comparison. Setting: Primary care. Subjects: Patients were recruited using a symptom-based...
10.
Berger M, Hollander A, de Groot G
Med Sci Sports Exerc
. 1997 Dec;
29(11):1491-8.
PMID: 9372487
Forces in human swimming consist of two components, a drag force and a lift force. The lift force is assumed to be beneficial because of the relative small energy loss...