Figure 1From: Finger joint laxity, number of previous pregnancies and pregnancy induced back pain in a cohort study Device used to assess the passive abduction angle of the left fourth finger. The angle between the immobilized second finger and the fourth finger with a force of 1.7 Newton applied to the medial side of the distal phalanx was recorded. Reproduced with permission from HC Ostgaard [28].Back to article page