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Electromyographic Effect of Using Different Attentional Foci During the Front Plank Exercise.
OBJECTIVE: The aim of this cross-sectional study was to examine whether an internal focus on different core muscles during the isometric prone plank exercise increased muscle activity.
DESIGN: Twenty university students performed the following five different conditions: regular prone plank (external focus) and prone plank with an internal focus on different muscles. Surface electromyography signals were recorded for the upper rectus abdominis, lower rectus abdominis, external oblique, and lumbar erector spinae.
RESULTS: For the upper rectus abdominis, an internal focus on using any muscle increased activity. For the lower rectus abdominis, internal focus on any muscle except the lumbar erector spinae increased activity. No changes were found for external oblique and lumbar erector spinae activity.
CONCLUSIONS: Upper rectus abdominis and lower rectus abdominis activities increased during an internal focus on the abdominal muscles. external oblique and lumbar erector spinae activities were nonaffected by an internal focus on any muscle.
DESIGN: Twenty university students performed the following five different conditions: regular prone plank (external focus) and prone plank with an internal focus on different muscles. Surface electromyography signals were recorded for the upper rectus abdominis, lower rectus abdominis, external oblique, and lumbar erector spinae.
RESULTS: For the upper rectus abdominis, an internal focus on using any muscle increased activity. For the lower rectus abdominis, internal focus on any muscle except the lumbar erector spinae increased activity. No changes were found for external oblique and lumbar erector spinae activity.
CONCLUSIONS: Upper rectus abdominis and lower rectus abdominis activities increased during an internal focus on the abdominal muscles. external oblique and lumbar erector spinae activities were nonaffected by an internal focus on any muscle.
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