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Table 4 Cervical traction forces measured in Newtons (N) over four treatment visits

From: Development of an attention-touch control for manual cervical distraction: a pilot randomized clinical trial for patients with neck pain

Force range Contact level Number of observationsa Mean SD Minimum Maximum
Light Force (0-20 N) C5 64 13.82 5.74 0.18 23.31
Occiput 64 17.19 4.84 0.47 26.64
Medium Force (21-50 N) C5 57 38.30 12.12 8.61 59.07
Occiput 56 42.87 10.40 7.70 69.57
High Force (51-100 N) C5 60 65.08 17.70 30.63 89.65
Occiput 60 74.06 16.08 37.54 98.34
  1. aWe recorded 23 missing values for traction forces due to 9 missed appointments (18 observations) and 5 instances of technical problems in data collection