The best replacement for gait is gate.

The best alternatives to gait are rated as following:
★★★★★  gate
★★  station
★  stance
★  posture
★  trendelenburg gait
  difficulty walking
  trot
  walking gait
  limp
  running gait
  shuffling
  lurch
  supinated gait
  trail gait
  tandem gait

Your alternative for gait is not listed? Suggest!
Speaking about gait, one probably shouldn't forget about assistive devices.

Other search terms related to gait and their ratings are:
★★★★★ assistive devices
★★★★ foot drop
ataxia
antalgia
You have in mind a companion for gait and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of gait in all years. Click on graph for more.
gait
gate
station