That’sat about 1Hz, sittingstill. Further up the frequency rangeareoscillations
causedbypoor bowcontrol at around2 to10Hz (related to typical reaction time)
thenmuscular tremorat perhaps10 to 30Hz.
Slight imbalance in the limbswill result, after theshot, invisibleasymmetric
limbvibration(ieasthetoplimbmovesforwards,thebottomlimbmovesback, sothenockingpointmovesupanddownrapidly)(seediagramsbelow).This movementproducesafrequencyaround10-20Hzdependingmostlyonbow weight andlimbmaterialandmass. Notice thatthisnatural frequency forthe
limbvibrationisnot far fromsomeof thearcher’smovement frequencies, and as
thebowisdrawn, thenatural frequencydrops.