Abdominal Muscle Stimulation

The abdominal muscles are major contributors to respiration, both through their expiratory action on the rib cage and their mechanical linkage with the diaphragm. Their function can be explored by voluntary maneuvers (see Volitional Tests of Respiratory Muscle Strength), with the usual limitations of subjects understanding and cooperation. A nonvolitional test giving information on abdominal muscle mechanical output would, therefore, be of interest.

Contraction of the abdominal muscles can be provoked by their direct electrical stimulation. This technique has been used in humans to study the action of various abdominal muscles on the rib cage (200), and in a study of diaphragm maximal voluntary activation (155). From a therapeutic point of view, its use has been considered to enhance cough in patients with cervical cord injury (201). However, direct electrical stimulation is painful and supramaximality is difficult to achieve. it is also difficult to activate all muscles groups at once.

Contraction of the abdominal muscles can also be provoked by stimulation of their parent nerves and roots (202). Theoretically, this allows supramaximal stimulation (and therefore reproducibility) and, if the stimulus is widespread enough, simultaneous activation of all abdominal muscles. Magnetic stimulation over the vertebral column at the level of the eighth to tenth thoracic vertebra could provide an easy-to-use nonvoli-tional assessment of abdominal muscle strength and fatigue (202, 203).

Midsection Meltdown

Midsection Meltdown

Attention, Want 6 Pack Abs? Then Read Every Word On This Page... Revealed! Follow A Proven Plan To Unveil Your Six Pack Abs Today. Download today To Discover The Simple But Sure Way To 6 Pack Abs. This powerful tool will provide you with everything you need to finally achieve your dream of shedding the tummy fat for good and revealing your six pack abs. You can make weight loss promises to yourself all day and night, but actually sticking to your goals is the hard part.

Get My Free Ebook


Post a comment