KINESIOL 4KK3 Lecture Notes - Lecture 4: Electrical Muscle Stimulation, Stim, Electric Current

• School: McMaster University
• Department: Kinesiology
• Course: KINESIOL 4KK3
• Professor: Krista M Baker

Document Summary

Trying to play with electricity in human body. Muscle and nerve have a resting membrane potential: diff in charge on outside vs. inside of cell membrane, to conduct an ap we have to change the potential which brain usually does. Introduce current to trigger an ap: trip off our own ap, send ap along target nerve and muscle, induce it ourselves. Electrode size: if delivering some level of current form machine to body, size of electrode will impact density of current being delivered to person, eg. If you wanna target a small muscle, may need to go after a smaller electrode to be more effective at reaching target eg. ecrb. Can be closer to or more specific to a certain target. Tens on knee can put electrodes above and below patella, current will come into one, travel across surface of skin to other electrode.