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References / Published research

A faster-changing field has been linked to a stronger response

Published research
The report leads with slew rate and Peak dB/dt, because they relate most directly to the stimulus tissue actually feels.
Where it appears in the report: Slew Rate, Peak dB/dt Analysis

The evidence

A controlled study found that a higher-slew-rate signal improved bone consolidation and shortened daily session duration compared with a classic signal. That backs the idea that rate of change is the primary driver. A separate small-animal study put the minimum effective slew rate near 0.10 G/us for bone. These point to the direction of the effect, and they don't pin down a single optimal value.
A single field pulse over time, with its rise and fall edges labeledA trapezoidal pulse showing the field rising from baseline to peak, holding, then falling back. The 10 percent and 90 percent levels mark the rise time and fall time; the width at 50 percent of peak is the pulse width; the steepness of the rising edge is the slew rate.90%10%Slew rateRise timeFall timePulse width (at 50%)Time →© 2026 Gauss Labs
One pulse over time. The field climbs from rest to its peak, holds, then falls back. How fast that rising edge climbs is the slew rate, and a steeper edge drives a stronger stimulus. The rise time and fall time are measured between the 10% and 90% levels; the pulse width is measured at half the peak.

Primary sources

  • High slew rate pulsed electromagnetic field enhances bone consolidation and shortens daily treatment duration in distraction osteogenesis. Bone & Joint Research. 2021. view
  • Dennis RG. Inductively Coupled Electrical Stimulation - Part 2: Optimization of Parameters for Orthopedic Injuries and Pain. Journal of Science and Medicine. 2020;1(2):27. (Single small-animal study; the bone slew-rate floor traces to this source.) view

Related references

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