Measurement of bio-magnetic fields from human hands during qi emission

We used a fluxgate to measure the bio-magnetic field from the palm during Qi emission. Four subjects among ten Qi-gong practitioners showed moderate bio-magnetism of 1nT order. Qi-gong practitioners' bio-magnetism signals exhibit certain characteristic frequencies depending upon each individual. We could not, however, determine whether the observed signal is the bio-magnetic field emitted from the palm or only manifestation of the modulated background magnetic field.