Biomedical subjects

Carolyn M Rogers

Publications and source records attributed to Carolyn M Rogers.

3 recordsLinked to original sources

PubMedDate not supplied

Biomechanical measure validation for spinal manipulation in clinical settings.

OBJECTIVE: To evaluate the validity and fidelity of the Leander 900 Z Series treatment table (Leader Health Technologies Corporation, Port Orchard, Wash) with an imbedded AMTI force plate (Advanced Mechanical Technology, Inc, Watertown, Mass) as a sensing system and to test its ability to quantify small, statistically significant changes in biomechanical parameters of spinal manipulative therapy (SMT). SETTING: Technology bench testing and Chiropractic College. METHODS: Complex forces and moments were applied to the modified treatment table, including standardized static and dynamic loads and those exerted by chiropractic students when delivering spinal manipulative therapy. Manipulation data was postprocessed by a second-order Butterworth filter with a 5-Hz cutoff frequency. Changes in lumbar spinal manipulative therapy procedures performed by chiropractic students were digitally recorded using the sensing system at approximately 1-month intervals throughout the course of a trimester of training. RESULTS: The system frequency response remains relatively consistent over the interval of test loads from 89 N to 222 N and from 53 nm to 133 nm with fundamental frequencies 5.9 Hz and higher. Changes in biomechanical parameters, including peak amplitude, slope, and duration over time and training, were observed in student chiropractic manipulations. Results show a minimum of 18% (P =.0723) increase during interval 1 in mean peak amplitude and slope parameters. Only a slight (3%) mean reduction of the procedure duration was seen. CONCLUSIONS: The results support the fidelity of the sensing system and its ability to quantify small, statistically significant changes in biomechanical parameters. With this type of instrumentation, it is feasible to assess the skill of chiropractic physicians performing spinal manipulative therapy.

Adult↗

PubMedDate not supplied

Quantitative feedback versus standard training for cervical and thoracic manipulation.

OBJECTIVE: To quantify elements of spinal manipulation therapy performance and to test the strategy of combined rehearsal and quantitative feedback as a means of enhancing student skill development for cervical and thoracic manipulative procedures. DESIGN: Randomized, controlled study. SETTING: Chiropractic college. SUBJECTS: Thirty-nine chiropractic student volunteers entering the manipulation technique training course. METHODS: Student performance of cervical and thoracic spinal manipulation therapies were quantified at the beginning, middle, and end of a trimester using a Leader 900 Z series manipulation table (Leader International, Port Orchard, Wash) embedded with an AMTI force plate. Passive loads acting through the targeted (C2 or T7) functional spinal units were estimated using inverse dynamics. Participating students rehearsed the index transverse (C2) and single pisiform-transverse (T7) procedures following either the standard curriculum alone or a modified curriculum adding the Dynadjust Instrument training aid (Labarge, Inc.), as assigned on a randomized basis. Student t and chi-square tests were used to explore and describe biomechanical parameter changes over time as the semester progressed. RESULTS: Significant changes in performance between the standard curriculum and modified curriculum (with the Dynadjust) were observed for several, but different, biomechanical parameters of cervical and thoracic procedures. CONCLUSION: This project used a rehearsal program that provided quantitative feedback on an empirically defined schedule that was self-administered by the student. Results demonstrated significant changes in performance of spinal manipulation by students using the Dynadjust Instrument versus those who did not. Using quantitative feedback provided from training aids and biomechanical measurement systems, future training programs may be optimized and tested.

Adult↗

PubMedDate not supplied

Developing skilled performance of lumbar spine manipulation.

OBJECTIVE: To quantify elements of spinal manipulation therapy performance and to test the strategy of combined rehearsal and quantitative feedback as a means of enhancing student skill development. DESIGN: Randomized, controlled study. SETTING: Chiropractic college. SUBJECTS: Thirty-nine chiropractic student volunteers entering the manipulation technique training course participated after providing informed consent. METHODS: Student performance of lumbar spinal manipulation therapy was quantified at the beginning, middle, and end of a trimester with a manipulation table imbedded with an AMTI force plate. Loads acting passing through the L5/S1 functional spinal unit were estimated by inverse dynamics. Participating students rehearsed the mamillary push, diversified procedure following either the standard curriculum alone or a modified curriculum adding a training aid as assigned on a randomized basis. Student's t and chi(2) tests were used to explore and describe biomechanical parameter changes over time as the semester progressed. RESULTS: Significant changes in performance between the standard curriculum and modified curriculum were observed in several biomechanical parameters. CONCLUSION: The reported project used a rehearsal program defined empirically and was self-administered in practice by the student. Results demonstrated significant changes in performance of spinal manipulation by students using the training aid instrument versus those who did not. With quantitative training aids and biomechanical measurement systems, future training programs may be optimized and tested.

Adult↗