This study investigated the effects of electrical stimulation (ES) on isometric and isokinetic strength of Judo athletes. Four subjects from the judo national team performed strength tests in three different occasions are: pretraining (Pre), Post after 28 days of training (Post1) and 45 days after the termination of the training (Post2). After signing the informed consent and finishing the Pre strength test, the subjects underwent 20 sessions of titanic and tonic ES contraction for the lower extremity over 28 days. The stimulation protocol was conducted to both agonist and antagonist muscles were contracted bilaterally. Strength was measured by a (CYBEX .) dynamometer at 0°, 60°, 90°, and 120°/s velocities. Two protocols of surface electrical stimulation SES was studied in the 28 days of the experimental period. Strength post-tests were performed 45 days after the termination of the exercise protocol. The comparisons were between pretest vs. posttest 1, pretest vs. posttest2, posttest 1 vs. posttest 2 for all the events of the strength test. The results indicate that ES conducted over (28) days have significantly affected strength in national team judo players.
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