A dissertation submitted in partial compliance with the requirements for the Masters Degree in Technology: Chiropractic at Technikon Natal, 1997. / Mechanical low back pain is one of the most common and costly conditions confronting health care providers and medical insurers today. Despite' the magnitude of the problem no general consensus exists concerning an appropriate treatment for this condition. / M

M.Tech. / OBJECTIVE: To determine and compare the effect of Spinal Manipulative Therapy (SMT) to the cervico-thoracic junction on the activity of the ipsilateral latissimus dorsi with regards to muscle activity measured by electromyography and activity of the trigger points measured by the algometer. STUDY DESIGN: Fourty subjects with lower cervical spine pain and dysfunction underwent six spinal manipulative treatments on alternative days over a 3 week period (excluding weekends) to test the changes in activity of the ipsi-lateral Latissimus Dorsi muscle. SETTING: Chiropractic Day Clinic at the University of Johannesburg, Johannesburg, South Africa. SUBJECTS: Forty subjects with lower cervical spine pain participated in this study. Each of the subjects was randomly assigned to one of two groups. Group A consisted of 20 subjects receiving SMT to the cervico thoracic junction. Group B consisted of 20 subjects receiving de-tuned ultra-sound to the area of cervical spine pain. METHODS: Latissimus Dorsi muscle activity and its trigger point activity were tested before and after the first consultation using electromyography and the algometer respectively. After consultations two, four and six readings were taken. For the electromyography readings subjects were asked to lie down in a prone position with their arms next to their sides. They were then instructed to lie as still as possible for three minutes. The mean, peak and minimum values from the surface electromyographic meter were recorded, analysed and compared for reference. For the algometer readings, the researcher grasped the Latissimus Dorsi muscle along the free border at the posterior axillary fold of the midscapular level. The algometer was then pushed into this point and candidates had to indicate when they started to feel pain. This measurement was then recorded. RESULTS: Data was analysed using the T-test for independent samples to compare the two individual groups. Repeated measures ANOVA was useful to investigate changes over time. If one considers Group A as the superior group, no statistical significant difference were noted between Group A and Group B regarding the electromyographic readings. With regards to the algometer readings no statistically significant differences were identified between the two groups except for the last consultation (treatment 4) of Group A where the p-value = 0.035<0.05. CONCLUSION: In light of these findings, it can be concluded that there were no statistically significant differences between Group A and Group B, regarding the electromyographic readings. Group A showed the most favourable treatment efficacy in terms of the algometer readings. The trends shown in this study should be used and tested in future similar research studies incorporating larger sample groups.

M.Tech.

M. Tech. / OBJECTIVE: The aim of this study was to assess the effect of Chiropractic Spinal Manipulative Therapy (CSMT) of the cervical spine on the key-strike accuracy of adults typing on a standard keyboard. By reducing the negative neural and other effects caused by aberrant movement between vertebrae, CSMT could allow optimal propagation and processing of upper limb proprioceptive information and improve cognitive processing needed for accurate typing. DESIGN: Forty subjects presenting to the University of Johannesburg Chiropractic Clinic participated in the study. The participants were allocated to one of two groups. Participants in the Experimental Group received spinal manipulative therapy to restricted segments in the cervical spine, as was determined by motion palpation of the cervical spine. Participants in the Control Group received detuned ultrasound therapy as a placebo. Patients were seen a total of six times over a period of three weeks. MEASUREMENTS: Participants were asked to copy a document on a standard computer keyboard, once before the treatment trial, and once following the treatment trial. The number of errors made pre-treatment was calculated and compared to the number of errors made post-treatment. CONCLUSION: Patients in the experimental group made significantly less typing errors following the treatment trial, while there was no difference in the number of typing errors made by patients in the control group. The results of this study increase potential for the chiropractic profession to contribute to the efficiency of the increasing number of people in the population that perform work on computers.

M. Tech. / Method The purpose of this study was to determine whether spinal manipulative therapy (SMT) of the cervical spinal segments would have any influence on the reaction and response time of a cricket player. It has been suggested that a dysfunctional vertebral subluxation complex can cause a decrease in visual performance. The decreased visual performance may be due to decreased blood flow to the visual centers of the brain. Thirty six participants (3 cricket teams) participated in this study. They were divided into two groups. Group A consisted of eighteen subjects who received spinal manipulative therapy (SMT) of the cervical spine. The eighteen subjects in Group B received detuned ultrasound to the cervical spine The inclusion criteria required the participant to be a male cricket player who was asymptomatic, without any history of cervical spine surgery and without any current injuries (e.g. hand or wrist fractures). The participant had to be between the ages of sixteen and twenty one and have no contra-indications to spinal manipulative therapy. Measure Objective data was obtained by the Wayne’s Saccadic Fixator ® which determined the patients’ visual reaction time. After testing the participants’ visual reaction time, the one group received SMT and the other group received detuned ultrasound. After which all participants’ reaction and response time were retested. vii Results Although there was a decrease in the reaction and response time of the players after spinal manipulative therapy, the objective results showed that due to the small sample size and different baseline values of the participants in this study there was no statistical proof that Chiropractic treatment had a positive influence on the reaction and response time of the participants.

M.Tech. (Chiropractic) / The study evaluated any changes in serum p-endorphin levels before and after a chiropractic adjustment and mobilisation ofthe cervical spine. Three groups of male and female subjects were randomly assigned; the chiropractic group, mobilisation group and detuned ultrasound (control group). Each group consisted of 10 subjects, aged between 18 to 35 with equal numbers of males and females. All subjects were mentally and physically healthy, and were instructed to refrain from nicotine and caffeine intake at least one hour prior to the experiment, as these substances are stimulants and may influence the results. The research protocol involved having blood taken five minutes before the treatment, and repeated five minutes after the treatment. The experimental group received bilateral cervical spine adjustments. The mobilisation group under-went cervical spine mobilisation with oscillatory motion, but no thrust was included. The control group had detuned ultrasound applied to their posterior cervical and trapezius muscles. Blood samples were taken by venipuncture and the p-endorphin levels were analysed using immunoenzymometric assay technique. The results of this study demonstrated that a decrease in p-endorphin levels occurred post intervention in the spinal adjustment group. The mobilisation and detuned ultrasound groups both experienced an increase in p-endorphin levels, but the increase was not statistically significant. This finding allows us to hypothesize that the pain-relieving effects of the chiropractic adjustment, may not be due to a release of p-endorphins, but may be due to the analgesic effect of another system that is not opiate mediated.

Dissertation submitted in partial compliance with the requirements for the Masters Degree in Technology: Chiropractic at Technikon Natal, 1998. / The cause of postnatal low back pain is not clearly understood. There have been few studies performed to determine the cause, and several theories have attempted to explain the occurrence of postnatal low back pain. It is suggested that an exaggerated lumbar lordosis, laxity of the ligaments due to relaxin, biomechanical strain on the muscles and ligaments of the lumbar spine and pelvis and temporary compensatory posture are possible aetiologies of postnatal low back pain. (Calguneri et al. 1982; Bullock et al. 1987 ; Berg et al. 1988; Wisneski et al.1992: 711 ; Mantle 1994:799.) / M

Thesis (M.Tech.: Chiropractic) -Dept. of Chiropractic, Durban Institute of Technology, 2002. xvi, 125 leaves / The purpose of this study was to determine the effect of spinal manipulation as compared to passive oscillatory mobilization, on thoracic spine range of motion, pain threshold and subjective pain experience, in patients with chronic mechanical thoracic spine dysfunction.

Dissertation submitted in partial compliance with the requirements for the Master's Degree in Technology: Chiropractic, Durban Institute of Technology, 2002. / The purpose of this study was to determine the effect of spinal manipulation as compared to passive oscillatory mobilization, on thoracic spine range of motion, pain threshold and subjective pain experience, in patients with chronic mechanical thoracic spine dysfunction. / M

Dissertation submitted in partial compliance with the requirements for the Masters Degree in Technology: Chiropractic, Technikon Natal, Durban, 1999. / The purpose of this study was to determine the relative effectiveness of adjusting the ipsilateral side of the fixated segment versus adjusting the side contralateral to that of the fixated segment, in patients with facet syndrome of the cervical spine, in terms of subjective and objective clinical fmdings, as well as patient comfort. The rationale for adjusting the cervical spine on the side contralateral to fixation is that the spinal dysfunction is of a soft tissue nature, as opposed to joint or bone. Thus the effectiveness of the spinal adjustment may be due to a reprogramming of the central nervous system, whereby the principal effect seems to be to stretch muscles to their normal resting length before spinal mobility can be restored. Adjusting the side opposite to the fixation may cause a sudden stretch of the muscle spindle resulting in a barrage of afferent impulses to the central nervous system, which reflexly turns down the gamma motor neuron tone. The resetting of the gamma motor neuron tone and resultant restoration of the muscle spindle's normal resting length, thereby helps to relieve the associated muscle spasm and possibly removes the fixation. This study was comprised of 30 subjects, all of whom were diagnosed with cervical facet syndrome. The subjects were randomly divided into two groups of 15 each with ap average age of24 years per group. The average male:female ratio was 1,1:1. / M