The pathofdiscusflightandtheeffectsofthe throw velocity/angle, spin and wind conditions on discus flight are discussed in this paper, considering the aerodynamic force on the discus.
Most computerized swing analyzers focus on ball velocity, spin and launch angle, but MAT-T measures every motion you make from address to impact, including total duration of the swing, which when measured over a series of swings, equates to rhythm.