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All the programs involving significant (tetanic) contractions of the stimulated muscles automatically start with a warm-up sequence. This is indicated on the screen by an animated rising convection symbol above the heater symbol.
If no voluntary physical activity has been done in the minutes preceding the stimulation session, it is recommended that you do the warm-up. If the stimulation session is included in a voluntary training session and some voluntary activity immediately precedes the stimulation, you can skip the warm-up sequence. You can therefore delete the rising convection symbol (see procedure of chapter "Operating Instructions", section: "Personalizing the Program"), and the session will start directly with the specific work selected without any prior warm-up.
After the stimulation work sequence, a relaxation sequence starts automatically. This is to allow improvement in the recovery of a muscle after its work under Compex and to limit muscular aches to some extent. Unless you want to go on immediately to voluntary training stages, it is recommended that you let the last sequence go ahead. It is also recommended that you do some stretching of the muscles that you have just worked with the Compex, even if the stimulation seems to improve your muscular elasticity.