Publications
288 results found
Murphy AJ, Bull AMJ, McGregor AH, 2011, Predicting the lumbosacral joint centre location from palpable anatomical landmarks, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE, Vol: 225, Pages: 1078-1083, ISSN: 0954-4119
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- Citations: 6
Huang YY, Low KH, McGregor AH, et al., 2011, Clinical-Based Engineering Assessment and Data Interpretation of Hand Strength for Task-Oriented Robotic Rehabilitation, ADVANCED ROBOTICS, Vol: 25, Pages: 1991-2018, ISSN: 0169-1864
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- Citations: 2
Wang P, Low KH, Lim PAC, et al., 2011, Modulation of Weight Off-loading Level over Body-weight Supported Locomotion Training, 2011 IEEE INTERNATIONAL CONFERENCE ON REHABILITATION ROBOTICS (ICORR), ISSN: 1945-7898
Katakura M, Duffell LD, Strutton PH, et al., 2011, Effects of a 60 second maximum voluntary isometric contraction on torque production and EMG output of the quadriceps muscle group, ISOKINETICS AND EXERCISE SCIENCE, Vol: 19, Pages: 13-22, ISSN: 0959-3020
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- Citations: 4
McGregor AH, 2011, Measurement and Assessment in the Management of Musculoskeletal Disorders, EXERCISE THERAPY IN THE MANAGEMENT OF MUSCULOSKELETAL DISORDERS, Editors: Wilson, Gormley, Hussey, Publisher: BLACKWELL SCIENCE PUBL, Pages: 19-28, ISBN: 978-1-4051-6938-7
Davis R, Vincent C, Henley A, et al., 2011, Exploring the care experience of patients undergoing spinal surgery: A qualitative study, Journal of Evaluation and Clinical Practice
McGregor AH, 2010, Reviewer's comment on "Five-year outcome of surgical decompression of the lumbar spine without fusion" by Mannion AF, Denzler R, Dvorak J, Grob D (doi:10.1007/s00586-010-1535-2), EUROPEAN SPINE JOURNAL, Vol: 19, Pages: 1892-1893, ISSN: 0940-6719
Liao J, Blake GM, McGregor AH, et al., 2010, The effect of bone strontium on BMD is different for different manufacturers' DXA Systems, BONE, Vol: 47, Pages: 882-887, ISSN: 8756-3282
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- Citations: 10
McGregor AH, 2010, Reviewer's comment on "five-year outcome of surgical decompression of the lumbar spine without fusion" by Mannion AF, Denzler R, Dvorak J, Grob D (doi:10.1007/s00586-010-1535-2)., Eur Spine J, Vol: 19, Pages: 1892-1893
Datta G, Mcgregor A, Medhi-Zadeh S, et al., 2010, The Impact of Intermittent Retraction on Paraspinal Muscle Function During Lumbar Surgery, SPINE, Vol: 35, Pages: E1050-E1057, ISSN: 0362-2436
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- Citations: 16
Chhikara A, McGregor AH, Hadjilucas L, et al., 2010, Quantitative assessment of the motion of the lumbar spine and pelvis with wearable inertial sensors, Pages: 9-15
Chronic Low Back Pain (CLBP) is a leading cause of disability with significant economic costs and severe psychological and social consequences. LBP patients also have the tendency to change the movement of the back and hold the pelvis rigid. Currently, the clinical assessment of a LBP patient is undertaken at a single point in time during clinic visits rather than through continuous monitoring. To monitor motion of the lumbar spine and pelvis, we have developed a wearable prototype sensor based on inertial sensor technology combined with the Body Sensor Network (BSN) platform. The device enables quantitative assessment of motion, especially the proportion of pelvic to lumbar movement. The developed device has been tested in a pilot study with healthy volunteers for a range of movements and results validated by optical tracking. This paper presents our approach and exemplifies the quantitative assessment of the lateral flexion movement. The next stage of the project will involve testing with patients. © 2010 IEEE.
McGregor AH, Dore CJ, Morris TP, et al., 2010, Function after spinal treatment, exercise and rehabilitation (FASTER): improving the functional outcome of spinal surgery, BMC MUSCULOSKELETAL DISORDERS, Vol: 11, ISSN: 1471-2474
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- Citations: 18
Hislop S, Cummins K, Bull AMJ, et al., 2010, Significant influence of the design of the rowing ergometer on elite athlete kinematics, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART P-JOURNAL OF SPORTS ENGINEERING AND TECHNOLOGY, Vol: 224, Pages: 101-107, ISSN: 1754-3371
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- Citations: 3
Murphy AJ, Chee STH, Bull AMJ, et al., 2010, The calibration and application of a force-measuring apparatus on the seat of a rowing ergometer, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART P-JOURNAL OF SPORTS ENGINEERING AND TECHNOLOGY, Vol: 224, Pages: 109-116, ISSN: 1754-3371
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- Citations: 7
Wang P, McGregor AH, Tow A, et al., 2009, Rehabilitation control strategies for a gait robot via EMG evaluation, 2009 IEEE International Conference on Rehabilitation Robotics, ICORR 2009, Pages: 86-91
Therapists often emphasize selection and design of proper training programs for individual patients in different situations and rehabilitation stages. Thus, in order to cater different patient groups, this paper proposes four assistant control strategies for robotic rehabilitation of gait locomotion: (1) orthosis-free, (2) totally-passive, (3) optimal assistance and (4) resistance exercise. A robotic gait system with pelvic control (PC) is also designed by integrating body weight support (BWS), robotic orthosis (RO), parallelogram arm (PA), and mobile platform (MP). This paper also investigates the electromyography (EMG) signals from the eight major muscles of the leg and compares them to those created by our robotic device. The initial results of clinical trials indicate the potential for robotic rehabilitation in patients with gait impairments. ©2009 IEEE.
Mullington CJ, Klungarvuth L, Catley M, et al., 2009, Trunk muscle responses following unpredictable loading of an abducted arm, GAIT & POSTURE, Vol: 30, Pages: 181-186, ISSN: 0966-6362
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- Citations: 10
Liao JY, Blake GM, McGregor AH, et al., 2009, (PREMIER POSTER - AWARD CANDIDATE) THE EFFECT OF BONE STRONTIUM CONTENT ON BONE MINERAL DENSITY IS DIFFERENT FOR LUNAR, HOLOGIC AND PERIPHERAL DUAL-ENERGY X-RAY ABSORPTIOMETRY DEVICES, Conference of the National-Osteoporosis-Society, Publisher: SPRINGER LONDON LTD, Pages: S276-S277, ISSN: 0937-941X
King RC, McIlwraith DG, Lo B, et al., 2009, Body Sensor Networks for Monitoring Rowing Technique, 6th International Workshop on Wearable and Implantable Body Sensor Networks, Publisher: IEEE COMPUTER SOC, Pages: 251-+
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- Citations: 19
Wang P, McGregor AH, Tow A, et al., 2009, Rehabilitation Control Strategies for a Gait Robot via EMG Evaluation, 11th IEEE International Conference on Rehabilitation Robotics, Publisher: IEEE, Pages: 100-+, ISSN: 1945-7898
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- Citations: 2
McGregor AH, Hukins DWL, 2009, Lower limb involvement in spinal function and low back pain, JOURNAL OF BACK AND MUSCULOSKELETAL REHABILITATION, Vol: 22, Pages: 219-222, ISSN: 1053-8127
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- Citations: 50
McGregor AH, Patankar ZS, Bull AMJ, 2008, Do men and women row differently? A spinal kinematic and force perspective, Proceedings of the Institution of Mechanical Engineers Part P: Journal of Sports Engineering and Technology, Vol: 222, Pages: 77-83, ISSN: 1754-3371
Performance differences have been noted between male and female rowers; the aim of this study was to determine if these are due to differences in rowing technique. An electromagnetic motion measurement device in conjunction with a load cell was used to compare the ergometer rowing kinematics of female and male elite national rowers.Male rowers generated significantly greater peak force during the stroke, (p < 0.0001) and greater power. Although there was no difference in stroke length, females demonstrated a more optimal lumbopelvic rhythm due to a greater anterior pelvic rotation during the stroke (p < 0.05). This is likely to account for the lack of difference in stroke length. In conclusion, gender differences do exist in kinematic parameters of rowing technique. With a greater mass and height, the male athletes are more powerful than the females; however, females appear to optimize their kinematics in an attempt to enhance performance.
Mackenzie HAM, Bull AMJ, McGregor AH, 2008, Changes in rowing technique over a routine one hour low intensity high volume training session, JOURNAL OF SPORTS SCIENCE AND MEDICINE, Vol: 7, Pages: 486-491, ISSN: 1303-2968
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- Citations: 15
Richardson J, Hill AM, Johnston CJC, et al., 2008, Fracture healing in HIV-positive populations, JOURNAL OF BONE AND JOINT SURGERY-BRITISH VOLUME, Vol: 90B, Pages: 988-994, ISSN: 0301-620X
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- Citations: 40
Mann TS, McGregor AH, Patel R, 2008, The correlation between phalangeal quantitative ultrasonography and dual energy x-ray absorptiometry in women with premature ovarian failure., Mcgill J Med, Vol: 11, Pages: 132-140, ISSN: 1201-026X
OBJECTIVES: With the growing demand for bone densitometry services there is a need for simple, cost-effective and ideally mobile devices which can identify individuals who are at risk of osteoporotic fracture. When new devices are evaluated, it is useful to examine the correlation with the established 'gold standard' technique of dual x-ray absorptiometry (DXA). This study examined the correlation between quantitative ultrasound (QUS) measurements performed at the phalanges and conventional DXA measurements of the spine and hip in women with premature ovarian failure--a known risk factor for osteoporosis. METHODS: Thirteen white Caucasian women suffering from premature ovarian failure and 19 age- and sex-matched controls were recruited into the study. DXA measurements were performed at the spine and hip, followed by quantitative ultrasonography at phalanges II-V of the non-dominant hand. RESULTS: Significant correlations were observed between the bone transit time (BTT) value from the Bone Profiler and bone mineral density measured at the spine (r=0.66). The spine Z-scores also correlated with many of the ultrasound values (r=0.44-0.63). Significant inverse correlations were observed between BMI, weight and ultrasound parameters (r=-0.48 to -0.78). CONCLUSION: We have reported moderate but significant correlations between phalangeal QUS and DXA parameters. The strongest correlation was observed between BTT and spine BMD, as well as between the Z-scores from the two devices. QUS parameters also demonstrated an inverse correlation with weight and BMI.
Deane JA, Toscke J, McGregor AM, 2008, Evaluation of a rehabilitation programmed for patients following spinal surgery, Eurospine
Everett R, Strutton PH, McGregor AH, 2008, Do asymmetries exist in the trunk muscles and is this influenced by sporting task?, ISOKINETICS AND EXERCISE SCIENCE, Vol: 16, Pages: 255-262, ISSN: 0959-3020
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- Citations: 4
Chhikara A, Rice ASC, McGregor AH, et al., 2008, In-House Monitoring of Low Back Pain related Disability (IMPAIRED), 30th Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society, Publisher: IEEE, Pages: 4507-+, ISSN: 1557-170X
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- Citations: 6
Chhikara A, Rice AC, McGregor AH, et al., 2008, In-House Monitoring of low back pain related disability (IMPAIRED)., Annu Int Conf IEEE Eng Med Biol Soc, Vol: 2008, Pages: 4507-4510, ISSN: 2375-7477
Preventive care, healthcare management and a working population are areas of growing emphasis in industrialized countries. Recent exponential growth in technological developments has made developing wearable monitoring systems feasible. Chronic Low Back Pain (CLBP) is a leading cause of disability with staggering economic costs and severe psychological and social consequences. A principal issue is the assessment of LBP severity at a single point of time during clinic visits rather than through continuous monitoring. This paper presents the project In-House Monitoring of Low-Back-Pain Related Disability (IMPAIRED) which aims to design and develop a multi-sensor wearable prototype to monitor movement of the lumbar spine and pelvis, sleep disturbance (circadian rhythm), as well as muscle fatigue and activity pattern. We have identified relevant movements correlating to disability associated with LBP, evaluated the suitability of inertial sensors to monitor the expected range of movement and proposed a sensor placement map.
Mann TS, McGregor AH, Patel R, 2008, The correlation between phalangeal quantitative ultrasonography and dual energy x-ray absorptiometry in women with premature ovarian failure, McGill Journal of Medicine, Vol: 11, Pages: 132-140
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