A device, kit and method for monitoring muscle activity. The device may include an electrode having an annular profile substantially similar to that of the muscle. During a monitoring operation, the electrode contacts a substantial portion of the muscle and detects the muscle activity. In some cases, the electrode may be positioned around a catheter device to facilitate advancing of the electrode to the desired muscle. The catheter device may then be advanced through a lumen of the body to the muscle to be monitored. A balloon of the catheter device may be expanded once the catheter device is properly positioned to secure the electrode against the muscle.
