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Table 1 Outcome measures

From: Non-surgical treatment of pain associated with posterior tibial tendon dysfunction: study protocol for a randomised clinical trial

Primary outcome measure Unit
  • Foot Function Index (FFI) – total score sum score [0–230]
Secondary outcome measures Unit
  • Foot Function Index (FFI) – subcategory pain sum score [0–90]
  • Foot Function Index (FFI) – subcategory disability sum score [0–90]
  • Foot Function Index (FFI) – subcategory activity limitation sum score [0–50]
Tertiary outcome measures Unit
Additional assessment of functional impairment and current pain perception  
  • Pain Disability Index Sum score [0–70]
  • Visual Analog Scale (VAS) assessing pain (pre-post biomechanical testing) Score [0–10]
Tertiary outcome measures from biomechanical data Unit
Kinematic data from 3D movement analysis  
Distance
  • Dynamic navicular drop Millimeter [mm]
Kinematic data from 3D movement analysis  
Angular data: angle at initial contact, maximal manifestation during stance, range
  • Foot Progression Angle Angular degree [°]
  • Forefoot to rearfoot dorsiflexion Angular degree [°]
  • Forefoot to rearfoot adduction Angular degree [°]
  • Forefoot to rearfoot supination Angular degree [°]
  • Ankle dorsiflexion Angular degree [°]
  • Ankle adduction Angular degree [°]
  • Ankle eversion Angular degree [°]
  (hindfoot with respect to tibia)
  • Ankle dorsiflexion Angular degree [°]
  • Ankle adduction Angular degree [°]
  • Ankle eversion Angular degree [°]
  (hindfoot with respect to lab)
  • Knee flexion Angular degree [°]
  • Knee adduction Angular degree [°]
  • Knee internal rotation Angular degree [°]
  • Hip flexion Angular degree [°]
  • Hip adduction Angular degree [°]
  • Hip internal rotation Angular degree [°]
Neuromuscular activity  
EMG of M. tibialis anterior, M. peroneus longus, M. gastrocnemius lateralis/medialis, M. soleus
  • Onset of activation % of stride
  • Time of maximum activation % of stride
  • Total time of activation % of stride
  • Normalized amplitude in preactivation arbitrary unit [uV/uV]
  • Normalized amplitude in weight acceptance arbitrary unit [uV/uV]
  • Normalized amplitude in mid-stance arbitrary unit [uV/uV]
  • Normalized amplitude in push-off arbitrary unit [uV/uV]
  1. Primary, secondary and tertiary outcome measures of this RCT