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Abstract

The purpose of the study was to determine the changes of spirometric parameters resulting from a 12-wk swimming-instruction program. Fifty-one teenage female volunteers were divided into swimmers (S) and nonswimmers (NS). Spirometric investigation revealed greater inspiratory (VC) and forced vital capacity (FVC) and forced expiratory (FEV1) and inspiratory (FIV1) volume in 1 s in the S group than in NS. After a 12-wk swimming-training program, in the NS group VC, FVC, FEV1, FIV1 and maximal expiratory flow at 50% and 25% of VC in the lungs increased as a result of increased respiratory-muscle strength and endurance. Correlations between the swimming-skill evaluation marks and increases in VC, FVC, FEV1 and FIV1 after the swimming training indicate the potential importance of motor-learning skills in respiratory training.

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