, 2010). But the evidence is contradictory regarding the practical application of this method, both related to training and rehabilitation (Augustsson et al., 2003; Brennecke et al., 2009; Da Silva et al., 2010; Fleck and Kraemer, 2006; selleck chem Sim?o et al, 2012). The DS method, as discussed in nonscientific strength training literature, may enable greater amounts of muscular work in higher intensities by providing short rest periods between work bouts. Augustsson et al. (2003) observed a decrease in electromyography amplitude of the quadriceps muscle during leg press exercise with PRE compared to without PRE in the leg press exercise. Gentil et al.

(2007) investigated the effects of PRE on upper-body muscle activation during the bench press exercise and reported that the peck deck exercise, when performed immediately before the bench press exercise leads to similar electromyography amplitude of the anterior deltoid and the pectoralis major muscles. However, they observed an increase in the triceps brachii activation with the worst performance during the bench press exercise with PRE. Despite the decrease in performance, this increase in electromyography intensity during PRE may also be altered because fatigue of some muscles can be compensated by increasing motor unit recruitment of other muscles in an attempt to maintain the required performance. Brennecke et al. (2009) investigated the effects of PRE on upper-body muscle activity during the bench press in trained subjects finding that PRE did not affect the temporal pattern of muscular activity and muscular unit recruitment of the pectoralis major or anterior deltoid muscles.

There was a related increase in surface electromyography signal amplitude of triceps brachii muscle during the bench press. However, little is known about the efficiency of dropset on strength performance. Gaps in the current literature surrounding the use of this methodology suggest the need to further examine its use and impact. The method of dropset combined with pre-exhaustion in the same training program requires further investigation so that their benefits and proper applications become clear. The purpose of the present study was to compare the influence of including dropset exercises in different orders in a strength training program, both in the method PRE, and in the post-exhaustion (POST) on the total work performed (calculated by multiplying total repetitions (RM) x workload (KG) during the bench press and the chest flying exercises.

Material and Methods Participants To compare the influence of including a dropset with pre-exhaustion and post-exhaustion on total work, subjects performed six visits, four visits to strength training sessions and two visits for 10RM loads determination for each exercise. The subjects were randomly assigned to particular Drug_discovery sessions (Table 1). In the first day, and on the other three days, the procedures were exactly the same but with the other exercise sequences.