ABSTRACT
The purpose of this study was to determine whether the Williams or McKenzie protocol of treatment was more effective in both decreasing pain and hastening the return of pain-free range of lumbar spine movement. Twenty-two subjects underwent an initial evaluation which involved six measurements: subjective pain, comfortable sitting time, forward flexion, right and left lateral flexion, and straight leg raise. Subjects required to perform Williams' protocol were assigned accordingly, while those referred as "evaluate and treat" were placed in the McKenzie group. Following the completion of treatment, a second evaluation was performed taking the same six measurements. A comparison of the improvement scores of the two groups indicated that those receiving the McKenzie protocol improved to a significantly (P < 0.001) greater extent than did the subjects in the Williams group, and that these changes came about in a significantly (P < 0.01) shorter period of time.J Orthop Sports Phys Ther 1984;6(2):130-139.
ABSTRACT
The purpose of this study was to investigate the hypothesized correlation between volume of a verbal command and magnitude of a resulting voluntary isometric muscular contraction, using a withdrawal-reinstatement (ABAB) research design. Nineteen volunteer male subjects between the ages of 18 and 30 years performed isometric contractions of the triceps brachii muscles in response to prerecorded verbal commands. With a volume increase of 22 decibels A scale, subjects averaged an 8 percent increase in muscle contraction strength, a difference that was significant at the .05 level. Through an awareness and use of the effects of voice volume on muscular contraction, the therapist may be able to improve the accuracy and consistency of examination methods, and increase the efficacy and efficiency of therapeutic procedures.
Subject(s)
Acoustic Stimulation , Muscle Contraction , Voice , Adult , Auditory Pathways/physiology , Humans , Male , Physical Therapy Modalities , Reflex, Acoustic , Research DesignABSTRACT
The purpose of this study was to assess and describe the status of twenty-four patients with a diagnosed tear of the anterior cruciate ligament who participated in a non-operative program of rehabilitation emphasizing strengthening of the hamstrings. The knees were evaluated by testing stability, strength, and range of motion; by roentgenographic examination; and by the patient's level of participation in sports. The patient's uninjured knee was used for comparison. The results showed a high incidence of anterior instability, but no significant differences in degenerative changes or range of motion. All patients returned to some sports participation, with fourteen (59 per cent) returning to their full preinjury level of participation. Higher levels of sports participation were found in the patients whose hamstrings strength was equal to or more than their quadriceps strength.
Subject(s)
Exercise Therapy , Knee Injuries/rehabilitation , Ligaments, Articular/injuries , Adolescent , Adult , Humans , Joint Instability/diagnosis , Knee Joint/diagnostic imaging , Knee Joint/physiology , Male , Movement , Radiography , SportsABSTRACT
The synthesis of many polycarboxylic acids is reported. An account is given of their stability in aqueous solution and the properties of cements formed by their reaction with ion-leachable glasses. A copolymer of acrylic and itaconic acids was found to combine several favorable characteristics.
Subject(s)
Acrylic Resins/chemical synthesis , Dental Cements/chemical synthesis , Glass Ionomer Cements/chemical synthesis , Polycarboxylate Cement/chemical synthesis , Carboxylic Acids/analysis , Chemical Phenomena , Chemistry, Physical , Gels , Glass Ionomer Cements/analysis , Methacrylates , Molecular Weight , Polycarboxylate Cement/analysis , Polymers , SuccinatesABSTRACT
The preparation of a large number of novel fluorine-containing aluminosilicate glasses is reported along with the properties of cements formed by their reaction to aqueous solutions of poly- (acrylic acid) (PAA).
Subject(s)
Acrylic Resins , Aluminum Silicates , Dental Cements/chemical synthesis , Fluorides , Calcium Fluoride , Dental Restoration, Permanent , Dental Stress Analysis , Particle Size , Sodium Fluoride , Solubility , Surface Properties , Temperature , Time FactorsABSTRACT
A computer program was developed to help diagnose orthopedic gait disorders. Designing and implementing the program, as well as the program's method of operation are described. The main features of the program include: a knowledge base of facts about orthopedic gait, organized into premise-conclusion pairs; a goal-directed reasoning chain that causally relates the facts; and a symbolic structure that allows limited English discourse between the user and the computer. Results of the project indicate that the complex area of gait analysis does lend itself to diagnosis by computer and that this prototype has potential as an aid to physical therapists in the classroom and in the clinic.
Subject(s)
Diagnosis, Computer-Assisted , Gait , Movement Disorders/diagnosis , Audiovisual Aids , Computers , Humans , MethodsABSTRACT
Part 1 of an introductory overview of orthopedic manual therapy is presented, covering evaluation and treatment of the extremities. The first section defines introductory concepts about passive movement, including types of movement, limitations of movement, and types of treatment movements. The remaining four sections cover general concepts, evaluation schemes, and treatment procedures of four practitioners belonging to different schools of thought in orthopedic manual therapy: James Cyriax, MD, MRCP; Freddy Kaltenborn, DO, RPT; Geoffrey Maitland, MAPA, FCSP; and John McM Mennell, MD. The conclusion stresses the importance of developing skills in evaluation, as well as treatment, prior to practicing orthopedic manual therapy.