Int J Sports Med 2007; 28(2): 164-171
DOI: 10.1055/s-2006-924208
Training & Testing

© Georg Thieme Verlag KG Stuttgart · New York

Comparison of Spatio-Temporal, Metabolic, and Psychometric Responses in Recreational and Highly Trained Swimmers during and after a 400-m Freestyle Swim

C. Schnitzler1 , V. Ernwein2 , l. Seifert1 , D. Chollet1
  • 1C. E. T. A. P. S. Laboratory UPRES EA 3832: University of Rouen, Faculty of Sports Sciences, Rouen, France
  • 2Equipe d'Accueil en Sciences des Sports (EA 1342), Marc Bloch University, Faculty of Sports Sciences, Strasbourg, France
Further Information

Publication History

Accepted after revision: April 4, 2006

Publication Date:
06 October 2006 (online)

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Abstract

Spatio-temporal, metabolic and psychometric responses during and after a 400-m freestyle swim trial were investigated for gender and skill-level effects. Thirty-four men and women, 18 national and international competitors and 16 recreational swimmers, were compared. Mean speed, stroke rate (SR), and stroke length (SL) were obtained from video recordings. Peak heart rate (HR) and the lactate value (Hla) were determined, as were the recovery kinetics, i.e., the recovery time index (RTI) for heart rate and %Hlar for the lactate values. Well-being was assessed with the Profile of Mood States questionnaire (POMS). Subjective workload was assessed with the NASA‐TLX questionnaire. The experts showed less variation in their swim speed than the recreational swimmers. The male experts showed greater SL and the female experts showed greater SL and SR. No significant difference was noted between the experts and recreational swimmers for peaks of HR and Hla, POMS (157.3 ± 15.1 vs. 163.1 ± 21.5), or subjective workload (32.4 ± 6.7 vs. 31.6 ± 6.1). The experts exhibited higher RTI (- 38.5 ± 5.5 % vs. - 31.1 ± 5.4 %) and %Hlar (8.6 ± 7.18 % vs. 1.65 ± 8.2 %). They also showed an improvement of 7.8 ± 2.6 % for men and 6.02 ± 1.6 % for women between the performance time for the trial and the best competitive time of the season. Last, our results suggest that the 400-m freestyle trial is a valid field test to evaluate the maximal aerobic speed (MAS) of swimmers with different training status. The systemic analysis herein described can be used to set the end-of-season target time for expert competitors. Attention should focus on SL, race management, and the physiological recovery for training prescription.

References

Christophe Schnitzler
Viviane Ernwein

Marc Bloch University
UFR STAPS

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67000 Strasbourg

France

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Fax: + 33 3 88 41 74 45

Email: xtophe.8@laposte.net