Berkson M, Schultz A, Nachemson A, Andersson G
Clin Orthop Relat Res. 1977 Nov-Dec(129):84-95. doi: 10.1097/00003086-197711000-00010.
Hand forces exerted in 120 different combinations of foot positions, hand positions, and force directions were measured in a group of 15 male adults with acute low-back syndromes. The performances of these patients were contrasted with those of 29 healthy male adults who had been tested earlier. The major findings were: acute back syndrome patients, sometimes even including those with very severe pain, have considerable physical ability in many of the situations examined, often fully comparable to that of healthy subjects; generally, either patients were unable even to assume a given position, or else their performances were close to normal in all exercises in each position; the positions which a significant number of patients could not assume were those involving substantial trunk twisting, or combinations of bending and twisting.
对15名患有急性下背部综合征的成年男性，测量了在120种不同的足部位置、手部位置和力的方向组合下所施加的手部力量。将这些患者的表现与29名先前已接受测试的健康成年男性的表现进行了对比。主要发现如下：急性背部综合征患者，有时甚至包括那些疼痛非常严重的患者，在许多所检查的情况下都具有相当的身体能力，常常与健康受试者的能力完全相当；一般来说，患者要么甚至无法采取给定的姿势，要么在每个姿势的所有练习中其表现都接近正常；相当数量的患者无法采取的姿势是那些涉及大幅度躯干扭转，或弯曲与扭转组合的姿势。
