Faculty Bibliography

Table 4 summarizes how physical therapy should be implemented during the acute and chronic phase of cervical disk disease. From the outset of treatment, the patient should be encouraged to return to work or other productive activities and should be taught how to be responsible for their own recovery. If passive modalities are used, they must be an adjunct to the active modalities. As soon as the patient is able to continue with an active program without unbearable pain, the passive modalities should be discontinued gradually. If neck pain becomes chronic, the accompanying psychosocial dysfunction must be addressed through behavioral modification techniques, preferably in a multidisciplinary setting. Modification of the work place, work habits, and lifestyles must be emphasized at both the acute and chronic stages. The modalities presented in this article are commonly used by physical therapists. Unfortunately, the clinical efficacy of most of these modalities has yet to be proved. A literature search on the effectiveness of various physical therapy modalities by Sievers et al showed that only 4% of the studies published from 1979 to 1985 were controlled clinical trials. This scientific output of physical therapists needs to be corrected

It has been estimated that one fourth to one half of all patients treated in physical therapy clinics suffer from low-back pain. The purpose of this study was to compare the effects of spinal flexion (Group I) and extension (Group II) exercises on low-back pain severity and thoracolumbar spinal mobility in chronic mechanical low-back pain patients. Both groups had significantly less low-back pain after treatment (P less than .10). There was no significant difference, however, between the spinal flexion and extension exercises in reduction of low-back pain severity. The results indicated a significant difference between the groups in increasing the sagittal mobility (P less than .10). The results did not indicate any significant difference between and within groups in increasing the coronal and transverse mobility of the thoracolumbar spine. Either the spinal flexion or extension exercises could be used to reduce chronic mechanical low-back pain severity, but the flexion exercises had an advantage in increasing the sagittal mobility within a short period of time

Strength and fitness studies have been used to determine the predictability of back pain episodes. Tests have demonstrated that isometric strength displays little prognostic value in the development of low-back pain. Static isometric tests have achieved widespread usage due to the simplicity and safety of protocols, the readily available technology, and the low administrative costs. Dynamic lifting models have, however, predicted significantly higher spinal loads than those derived from static models. The objectives of this study were twofold: to investigate the relationship of the torque, velocity, and power to the resistive load during trunk flexion and extension, and to develop predictive models for these relationships for the subject's performance of the 10th, 50th, and 90th percentile distribution. The results of the study found that the flexion/extension torque had a positive linear correlation with the set resistance; the velocity displayed a negative linear correlation, while power had a quadratic relationship with the resistance