Help with PEMF · Castore: Built to Adapt

Help with PEMF

Hoping someone may be able to help me here. I'm looking for someone with expertise in PEMF, bioelectromagnetics, neurophysiology, or electrical engineering who can help me understand an observation I've been making...

Some background:

I have a C5-C6 nerve injury that affects my right pec, tricep, and parts of my arm. Following the injury, I experienced significant weakness, atrophy, altered sensation, and loss of function in those areas. While I have regained much of my strength, some deficits remain. I still have moments where it will go "dead" at certain angles, and am still missing a good chunk of my pec. It's also strangely tied to mental triggers as well, but that's a whole other story...

I use a PEMF system (P90+) along with a Vitality Wand attachment as part of my recovery plan. I also have an electric conductor/voltage detector pen that lights up when it detects an electrical field. The pen is a simple visual demonstration that the PEMF device is generating a detectable electromagnetic field around and within the body.

Observation:

When testing healthy individuals (my wife and other athletes I train), the detector pen will light up over most areas of the body while using the PEMF system, including the neck, arms, torso, and legs.

However, on my body, there are specific regions where the pen consistently shows little to no response. The most notable areas correspond closely with my previous nerve injury distribution, including my right pec, tricep region, and portions of lat and hips.

What is particularly interesting is that after using the P90+ together with the Vitality Wand, I can sometimes get a detectable response in portions of the pec that previously showed little or no response.

I'm exploring whether those differences may reflect changes in tissue conductivity, nerve function, or some other electrical property.

My Questions:

1. What is the detector pen actually measuring in this situation?

- Electromagnetic field strength?

- Voltage potential?

- Capacitive coupling?

- Tissue conductivity?

- Something else?

2. Could a history of nerve injury, muscle atrophy, scar tissue, inflammation, or altered tissue composition change how externally applied electromagnetic fields are detected in a specific region?

3. Are there known differences in electrical impedance, conductivity, or field propagation between healthy tissue and previously injured neuromuscular tissue?

4. Could increased blood flow, temperature, hydration, or nerve activity temporarily alter the detector's response after PEMF treatment?

5. Is there a more objective way to measure what I'm observing (EMG, nerve conduction studies, tissue impedance testing, etc.)?

I am not assuming that the detector pen is measuring healing or recovery. I'm simply trying to understand whether the repeatable differences I'm observing could reflect real changes in tissue electrical properties or whether they are more likely an artifact of the measuring device itself.

Any insight into the underlying physics, physiology, or testing methods would be greatly appreciated.

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