Motor Imagery and Action Observation on Lumbar Motor Variables

All subjects had to imagine that he/she was performing each exercise during 1 set of 12 repetitions prior to the real execution of this. During the second phase (the second and third week), subjects had to complete the set both imagining, with visual mental motor imagery, and actively performing the exercises.

A video was shown in third-person perspective. All subjects watched one person performing each exercise during 1 set of 12 repetitions. During the second phase (the second and third week), subjects had to perform actively the exercises while they watched the video.

The subjects were asked to perform 3 sets, of 10-12 repetitions each six exercise, with a total duration of approximately 30-35 minutes. The exercises program had to do it once a day, 6 days a week, for 3 weeks.