Electrical stimulation and swimming performance.

Medicine & Science in Sports & Exercise:
Biodynamics: PDF Only

PICHON, F., J-C. CHATARD, A. MARTIN, and G. COMETTI. Electrical stimulation and swimming performance. Med. Sci. Sports Exerc., Vol. 27, No. 12, pp. 1671-1676, 1995. The purpose of the study was to examine the influence of a 3-wk period of electrostimulation training on the strength of the latissimus dorsi m. and the swimming performances of 14 competitive swimmers divided into 7 electrostimulated (EG) and 7 control swimmers (CG). The peak torques registered during the flexion-extension of the arm was determined with the help of an isokinetic dynamometer at different velocities (from -60[degrees][middle dot]s-1 to 360[degrees][middle dot]s-1). Performances were measured over a 25-m pull buoy and a 50-m freestyle swim. For EG, a significant increase of the peak torques was measured in isometric, eccentric, and concentric conditions (P < 0.05). The swimming times declined significantly (P < 0.01) by 0.19 +/- 0.14 s, for the 25-m pull-buoy, and by 0.38 +/- 0.24 s, for the 50-m freestyle. For CG, no significant difference was found for any of the tests. For the whole group, the variations of the peak torques, measured in eccentric condition (-60[degrees][middle dot]s-1) were related to the variations of the performances (r = 0.77; P < 0.01). These results showed that an elcctrostimulation program of the latissimus dorsi increased the strength and swimming performances of a group of competitive swimmers.

(C)1995The American College of Sports Medicine