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Microwave therapy and muscle blood flow in man

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D. R. McNiven, D. J. Wyper · 1976

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Microwave therapy increased human muscle blood flow by 300% while other treatments failed, proving microwaves uniquely alter circulation.

Plain English Summary

Summary written for general audiences

Researchers tested different therapies on human muscle blood flow and found microwave therapy dramatically increased circulation by nearly 300% (from 2.9 to 11.4 ml/100g/min). Other treatments like infrared, ice, massage, and electromagnetic therapy showed no significant effects. This demonstrates microwaves have unique biological effects on human circulation.

Why This Matters

This 1976 study reveals something crucial that the wireless industry doesn't want you thinking about: microwaves have profound biological effects on human circulation. While other therapies failed to meaningfully change muscle blood flow, microwave exposure nearly quadrupled it. This isn't some theoretical lab finding - it's a direct measurement in living humans showing microwaves fundamentally alter how blood moves through your body.

What makes this particularly relevant today is that your smartphone, WiFi router, and 5G networks all emit microwaves. The study used therapeutic doses, but the mechanism it reveals - microwaves affecting circulation - operates at lower levels too. The reality is that if microwaves can increase blood flow by 300% therapeutically, they're certainly doing something to your circulation when you carry that phone in your pocket every day.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
D. R. McNiven, D. J. Wyper (1976). Microwave therapy and muscle blood flow in man.
Show BibTeX
@article{microwave_therapy_and_muscle_blood_flow_in_man_g6700,
  author = {D. R. McNiven and D. J. Wyper},
  title = {Microwave therapy and muscle blood flow in man},
  year = {1976},
  
  
}

Quick Questions About This Study

Microwave therapy increased muscle blood flow from 2.9 ml/100g/min to 11.4 ml/100g/min - nearly a 300% increase. This dramatic change occurred only with microwave treatment, not with other therapies tested.
No, short wave diathermy, infrared radiation, pulsed electromagnetic therapy, ice, and massage produced no significant effects on muscle blood flow. Only microwave therapy created measurable circulation changes in human subjects.
Scientists used xenon-133 clearance technique, injecting radioactive tracer into the vastus lateralis muscle and monitoring gamma rays with scintillation counters. This measured how quickly blood cleared the tracer, indicating flow rate.
Researchers injected xenon-133 tracer into the vastus lateralis muscle (part of the quadriceps in the thigh) to measure blood flow changes. This large muscle provided clear measurements of circulation effects.
Yes, previous animal experiments suggested microwave therapy was more effective at increasing tissue perfusion than other treatments. This human study confirmed those animal findings, validating the circulation-enhancing effects of microwaves.