English to German Medical Medical (general) Instructions for training

A case report on rehabilitation after cruciate ligament reconstruction. The patient has difficulty fully extending her operated knee, and "The therapist chooses to use electrical stimulation while performing static isometric quadriceps contractions, short arc quads with passive assistance, followed by isometric or eccentric control [...] as a home program. The patient is instructed to contract the muscles actively at the same time as the electrical impulse. *The timing for verbal cueing of muscle activation and the electrical stimulation is sequenced prior to lifting the lower leg for the short arc quads or the straight leg raise.*"

Canadian author who is a bit on the reticent side. The text is compact and seems to imply a lot which is not explicity said. Does "The timing of... is sequenced prior to..." simply mean that exercises involving muscle activation with the aid of verbal cues and electrical stimulation are performed at an earlier stage of rehabilitation than the exercises 'short arc quads' or 'straight leg raises'? or does it mean the timing of interventions (verbal cueing, electrical stimulation) is defined/discussed prior to performing the exercises?

Thank you for your help!