Muscle stimulation systems

a muscle stimulation and muscle technology, applied in the field of control systems, can solve the problems of high potential of such systems to cause permanent damage to the recipient, exercise systems have not been widely accepted as therapeutic devices, and the likelihood of over-stimulation of the muscles is therefore greatly increased

a muscle stimulation and muscle technology, applied in the field of control systems, can solve the problems of high potential of such systems to cause permanent damage to the recipient, exercise systems have not been widely accepted as therapeutic devices, and the likelihood of over-stimulation of the muscles is therefore greatly increased

US20080033505A1Inactive Publication Date: 2008-02-07THE UNIV OF SYDNEY
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  • Muscle stimulation systems
  • Muscle stimulation systems
  • Muscle stimulation systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] By way of example only, an embodiment of the invention will now be described with reference to Functional Electrical Stimulation (FES)-induced lower limb exercise using a cycle type machine in a system suitable for patients with neuromuscular disabilities such as (but not limited to) spinal cord injury. The embodiment described is a design for a FES Progressive Resistance Isokinetic Training (PRIT) cycle ergometer.

BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In the attached drawings:

[0053]FIG. 1 is a schematic illustration of a system embodying the invention and including an exercise cycling machine on which a patient is to be seated;

[0054]FIG. 2 is a flow chart illustrating the operation of system of FIG. 1 with isokinetic cycling;

[0055]FIG. 3 is a typical display on a computer screen monitoring operation of the system of FIG. 1;

[0056]FIG. 4 is a schematic diagram of a software program for the FES module of FIG. 1.

[0057]FIG. 5 illustrates average data for some five patients...

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Abstract

A control system for controlled exercise controls a functional electrical stimulation (FES) system which applies electrical signals to muscle groups of a user such as a user having a disability; the user exercises on a motor driven exercise machine such that substantially isokinetic exercise during a movement is obtained as the user's body part moves with a motor driven displaceable element of the machine. This element provides resistance to applied displacement load from the user's stimulated muscles. A feedback control system receives signals indicative of the user's performance and a control arrangement controls electrical stimulation to the user's muscles to achieve a desired exercise regime.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a control system and applications of such control systems to the field of electrical stimulation of muscles for the purpose of an exercise program. By way of example, the invention will be illustrated with reference to controlling a functional electrical stimulation (FES) system to induce leg muscle contractions that permit a user with a physical disability to benefit from such exercise. One important example is to apply the invention to use of a machine that simulates cycling motion, but the principles of the invention may be applied to other machines. BACKGROUND TO THE INVENTION [0002] This is a continuation of co-pending U.S. Ser. No. 10 / 492,804, filed Sep. 3, 2004. [0003] FES systems have been published in the prior art literature such as U.S. Pat. No. 4,499,900 (Petrofsky et al) and U.S. Pat. No. 4,838,272 (Lieber). One system that has been commercially developed and relates to the Petrofsky teachings is that market...

Claims

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Application Information

Patent Timeline
07 Feb 2008
Publication
US20080033505A1
IPC
A61N1/04; A61H1/02; A61N1/36
CPC
A61H1/02; A61N1/36003; A61H2230/08
Inventors
DAVIS, GLEN MACARTNEY; SINCLAIR, PETER JAMES