Unique Solutions for Clinical And Research Applications - Biometrics Ltd

Research Using Biometrics Ltd Sensors and Instrumentation
for Lower Extremity Measurements

keywords: DataLOG SX230 EMG Analysis Software Exercise Physiology LE 2011

Effect Of Muscle Action, Load and Velocity Variation on the Bilateral Neuromuscular Response; N Ball, J Scurr; Journal Of Exercise Physiology, Vol 14 Number 4 August 2011; Biometrics Ltd DataLOG with analysis software and SX230 EMG used to measure EMG activity to assess the effect of different muscle actions, velocity, and load on the bilateral EMG response of the triceps surae.

keywords: DataLOG EMG running sports LE 2011

Comparison of some electromyography parameters during treadmill running in athletes and non-athletes; SS Bonab, B Tarverdizadeh, MA Azarbayjani, YS Zamani; World Applied Sciences Journal, 13 (3) 2011 pages 552 – 557; Biometrics Ltd DataLOG and EMG used to measure EMG activity in Gastrocnemius muscle whilst running on a treadmill, comparing athletes with non-athletes.

keywords: DataLINK EMG SX230 stroke LE cycling exercise 2011

Clinical efficacy and prognostic indicators for lower limb pedalling exercise early after stroke: Study protocol for a randomised controlled trial; N Hancock, L Shepstone, P Rowe, PK Myint, V Pomeroy; Trials 2011 12:68 ; Biometrics Ltd DataLink and EMG sensors (SX230) used to measure muscle activity in early stroke patients during stationary bike pedalling exercise.

keywords: DataLOG Analysis sw ACL300 accelerometers vibration bone density LE 2011

Multiple vibration displacements at multiple vibration frequencies stress impact on human femur computational analysis; B Ezenwa, HT Yeoh; Journal Of Rehabilitation Research & Development Volume 48, Number 2, 2011 pages 179 – 190; Biometrics Ltd Accelerometer ACL300 and DataLog with analysis software were used in this study of use of vibration to improve bone density.

keywords: DataLOG ACL300 accelerometers sports science LE 2011

Influence of footwear typically worn during field hockey participation, velocity and surfaces on tibial accelerations during locomotion; A Greenhalgh, J Sinclair, A Leat, N Chockaligam; Footwear Science Volume 3 Supplement 1 September 2011; Biometrics DataLOG and ACL300 accelerometer used to measure impact shocks runners experienced in varying conditions.

keywords: DataLOG P3X8 EMG SX230 muscle fatigue LE 2010

Wavelet-Based Entropy Analysis Of Electromyography During 100 Jumps; ; L Daniuseviciute, K Pukenas, M Brazaitis, A Skurvydas, S Sipaviciene, I Ramanauskiene, V Linonis; Electronics And Electrical Engineering 2010 No8(104), Medicine Technology T115; Biometrics Ltd DataLOG and EMG sensors used to recorded muscle activity of Vastus lateralis and biceps femoris during jumping activity for fatigue analysis.

keywords: Goniometer Ankle robot Neurorehabilitation Biomechanics LE 2009

Robot-Aided Neurorehabilitation: A Novel Robot for Ankle Rehabilitation; A Roy, HI Krebs, DJ Williams, CT Bever, LW Forrester, RM Macko, N Hogan; IEEE Transactions On Robotics Vol 25 No 3 June 2009; Biometrics Ltd SG110 goniometer used to validate accuracy of ankle angle on a robotic ankle rehabilitation system.

keywords: DataLOG P3X8 SX230 EMG Goniometer Analysis Software Exercise Cycling LE 2009

Low-Intensity Cycling Affects The Muscle Activation Pattern Of Consequent Countermovement Jumps; G J Marquez, J Mon, R M Acero, Jose A Sanchez and M Fernandez-Del-Olmo; The Journal Of Strength And Conditioning Research 23(5)/1470-1476 2009; This study was designed to determine the effect of different cycling cadences at low intensity and short duration on explosive muscle movements. Data acquisition using Biometrics DataLOG with analysis software, goniometers and SX230 EMG to measure the joint movements and muscle activity of the leg.

keywords: DataLINK EMG SX230 Analysis sw Gait Analysis LE 2009

EMG Signal Analysis for Identifying Walking Patterns of Normal Healthy Individuals; N Kunju, N Kumar, D Pankaj, A Dhawan, DR Amod Kumar; Indian Journal of Biomechanics, Special Issue (NCBM 7-8 March 2009); Biometrics Ltd DataLink and SX230 EMG used to measure EMG activity of Gastrocnemius and Soleus muscles whilst subject was walking. Data was analyised using the RMS and Median Frequency filters in the Biometrics Ltd Analysis Software

keywords: Goniometer Knee Whole body vibration Transcranial magnetic stimulation LE 2008

Effects of Low Frequency Whole Body Vibration on Motor-evoked Potentials in Healthy Men; K N Mileva, J L Bowtell, A R Kossev; Experimental Physiology 2008 94.1 p103-116; Biometrics Ltd goniometer used to measure knee flexion angles whilst subjects performed squat exercise during and after whole body vibration with motor-evoked potentials elicited in response to transcranial magnetic stimulation

keywords: DataLOG EMGSX230 evoked potentials LE exercise physiology 2008

Hypertherma Impairs Short-Term Memory and Peripheral Motor Drive Transmission; S Racinais, N Gaoua, J Grantham; The Journal Of Physiology 2008 October 1; 586(pt19) p4751-4762; Biometrics Ltd DataLOG and SX230 EMG sensor were used to measure the amplitude of the electrically evoked action potentials in soleus muscle of subjects following exercise in 3 different temperature conditions.

keywords: DataLOG SX230 EMG Deep Vein Thrombosis LE 2008

The application of inertial and magnetic sensors to the monitoring of calf muscle pump activity; KJ O’Donovan, AK Bourke, DT O’Keeffe, G OLaighin; Medical Engineering & Physics 31 2009 p55-60; Biometrics DataLOG and SX230 EMG sensors used to measure EMG activity of calf muscle for comparison against an inertial sensor system whilst performing exercises to reduce the risk of DVT.

keywords: Gonio sg150 DataLOG Analysis sw knee LE reliability 2008

The reliability of knee joint position testing using electrogoniometry; P Piriyaprasarth, M Morris, A Winter, A Bialocerkowski; Musculoskeletal Disorders 2008, 9:6; This study examined the inter- and intra-tester reliability of knee joint angle measurements using a Biometrics Ltd electrogoniometer.  The clinical utility of electrogoniometry was also addressed. Data was collected using the Biometrics Ltd DataLOG and analyzed using Biometrics Ltd Analysis Software.

keywords: EMG SX230 DataLINK Analysis software LE sports PT 2008

Psychophysiological Effects od Massage-Myofascial Release After Exercise: A Randomized Sham-Control Study; M Arroyo-Morales, N Olea, MM Martinez, A Hidalgo-Lozano, C Ruiz-Rodriguez, L Diaz-Rodriguez; The Journal of Alternative and Complementary Medicine 2008, vol 14, no 10, pp 1223-1229; Biometrics Ltd EMG sensors and DataLINK data acquisition system with analysis software was used to quantify muscle activity in the quadriceps in this study to evaluate the effect of massage on neuromuscular recruitment, mood state, and mechanical nociceptive threshold after high-intensity exercise.

keywords: Gonio ADU knee LE proprioception arthritis 2008

Tai Chi for treating knee osteoarthritis: designing a long-term follow up randomized controlled trial; C Wang, C Schmid, P Hibberd, R Kalish, R Roubenoff, R Rones, A Okparavero, T McAlindon; Musculoskeletal Disorders 2008, 9:108; This study examines the effects of a 12 week Tai Chi program compared with an attention control (wellness education and stretching) on pain, functional capacity, psychosocial variables, joint proprioception and health status in elderly people with knee osteoarthritis (KOA).  Knee proprioception, which is reduced in KOA was measured using a Biometrics Ltd electrogoniometer with a Biometrics Ltd ADU301 angle display unit during each assessment visit.

keywords: Gonio SG110A DL1001 ankle LE gait 2007

Ankle movements during normal gait evaluated by flexible electrogoniometer; CS Moriguchi, TO Sato, HJC Coury; Revista Brasileria de Fisioterapia 2007, vol 11, no 3; Biometrics Ltd electrogoniometer connected to a Biometrics Ltd datalogger was used to evaluate ankle movements of healthy individuals walking on a treadmill.

keywords: Gonio knee ankle LE physiotherapy 2007

Analysis of the Repeated One-Leg Heel-Rise Test of Ankle Plantar Flexors in Manual Muscle Testing; S Kasahara, J Ebata, M Takahashi; Journal of Physical Therapy Science 2007; 19:251-256; The purpose of this study was to evaluate the repeated one-leg heel-rise test method of ankle plantar flexion in MMT with kinematic measuring devices and EMG.  Biometrics Ltd electrogoniometers were used to monitor ankle and knee movements during the test.

keywords: EMG SX230 LE sports 2007

A 350-S Recovery Period Does Not Necessarily Allow Complete Recovery of Peak Power Output during Repeated Cycling Sprints; R Matsuura, H Ogata, T Yunoki, T Arimitsu, T Kimura, T Yano; Journal of Physiological Anthropology 2007, 26:51-57; Biometrics Ltd SX230 EMG sensors were used to collect lower extremity muscle activity during each of ten cycling sprints.

keywords: Gonio knee LE biomechanics aerospace 2006

Click to enlargeComparison of Knee Motion on Earth and in Space: an Observational study; M Pierre, K Genc, M Litow, B Humphreys, A Rice, C Maender, P Cavanaugh; Journal of NeuroEngineering and Rehabilitation 2006, 3:8; Custom made Biometrics Ltd electrogoniometers were incorporated into a custom built Lower Extremity Monitoring Suit to monitor knee movement in the same subjects on earth and then in space aboard the International Space Station.

keywords: Gonio SG150 knee LE movement analysis 2006

Ambulatory measurement of knee motion and physical activity: preliminary evaluation of a smart activity monitor; J Huddleston, A Alaiti, D Goldvasser, D Scarborough, a Freiberg, H Rubash, H Malchau, W Harris, D Krebs; Journal of NeuroEngineering and Rehabilitation; Biometrics Ltd electrogoniometers were used to measure bilateral knee flexion angles for periods of 7-24 hours.

keywords: EMG SX230 DataLOG LE gait neuro rehabilitation 2006

Reliability and Validity of Bilateral Thigh and Foot Accelerometry Measures of Walking in Healthy and Hemiparetic Subjects; K Saremi, J Marehbian, X Yan, JP Regnaux, R Elashoff, B Bussel, B Dobkin; Neurorehabilitation and Neural Repair 2006, 20(2); A biomechanical model was used to compute lower extremity joint kinematics over a short walkway.  Surface EMG was acquired with the (Biometrics Ltd) DataLOG system using 8 (Biometrics Ltd) SX230 EMG sensors and analysed using (Biometrics Ltd) version 3 Analysis Software.

keywords: Gonio bilateral knee ankle hip LE neuro rehabilitation kinesiology spinal 2006

Click to enlargeThe effects of powered ankle foot orthoses on joint kinematics and muscle activation during walking in individuals with incomplete spinal cord injury; G Sawicki, A Domingo, D Ferris; Journal of NeuroEngineering and Rehabilitation 2006, 3:3; The goal of this study was to test the effects of robotic assistance in subjects with incomplete spinal cord injury using pneumatic powered ankle-foot orthoses.  Biometrics Ltd electrogoniometers were used to measure bilateral ankle, knee, and hip movement.

keywords: EMG SX230 LE work ergonomics 2006

Evaluation of Human Physical and Mental Burdens Regarding Standing Transfer in Individuals with Reduced Lower Limb Strength; Y Toshihiko, T Kumiko, I Hidemi, K Mikiko, F Kimie, T Katsuyuki, M Katsumi; Journal of Human Nursing Studies 2006, vol 3, pg 11-21; Biometrics Ltd SX230 EMG sensors were used to measure to muscle function.

keywords: EMG SX230 LE sports 2006

Effect of Blood Lactate Concentration and the Level of Oxygen Uptake Immediately before a Cycling Sprint on Neuromuscular Activation during Repeated Cycling Sprints; R Matsuura, H Ogata, T Yunoki, T Arimitsu, T Yano; Journal of Physiological Anthropology 2006, 25:267-273; Biometrics Ltd SX230 EMG sensors were used to collect lower extremity muscle activity in repeated cycling sprints.

keywords: Gonio M180 knee LE Arthroplasty Orthopedic Surgery 2005

The effect of total knee arthoplasty on joint movement during functional activities and joint range of motion with particular regard to higher flexion users; PJ Rowe, CM Myles, R Nutton; Journal of Orthopedic Surgery 2005, 13(2):131-138; This study used Biometrics Ltd electrogoniometers to evaluate active and functional knee excursion of patients before and after total knee arthroplasty (TKA) to determine whether TKA restores quality of life related to functionsl activities of daily living.

keywords: Gonio sg150 ADU K100 ankle LE physiotherapy 2005

Effects of Age and Sex on the Results of an Ankle Plantar-Flexor Manual Muscle Test; MH Jan, HM Chai, YF Lin, JCH Lin, LY Tsai, YC Ou, DH Lin; Physical Therapy October 2005, vol 85, no 10; The ability to perform 20 or more one-leg heel-rises is considered a “normal” grade for muscle strength of the ankle plantar flexors, regardless of age and strength.  Because muscle strength is closely related to age and sex, the “normal” test criterion was re-evaluated in different groups categorized by age and sex. Biometrics Ltd electrogoniometers and instrumentation was used to measure the angle of ankle plantar flexion.

keywords: Gonio SG150 EMG SX230 DataLINK knee LE applied physiology 2005

Age Differences in knee extension power, contractile velocity, and fatigability; J Petrella, JS Kim, C Tuggle, S Hall, M Bamman; Journal of Applied Physiology 2005, 98:211-220; The purposes of this study were to examine age and gender differences in knee extension strength, power, and fatigue using open- and closed-chain testing procedures.  Knee position and flexion/extension movement was measured using Biometrics Ltd electrogoniometers and neural activity of the right knee extensors was measured for each of three superficial quadriceps muscles using Biometrics Ltd EMG sensors.  EMG were digitized at 1000 Hz and electrogoniometer inputs at 500 Hz, and data from each input were analyzed simultaneously using Biometrics Ltd DataLINK with software version 2.0.

keywords: Gonio SG150 SG110A knee ankle LE biomechanics sports 2005

Effects of Passive Ankle and Knee Joint Motions on the Length of Fascicle and Tendon of the Medial Gastrocnemius; T Wakahara, J Ushiyama, H Kanehisa, Y Kawakami, T Fukunaga; International Journal of Sport and Health Science 2005, vol 3, 75-82; Biometrics Ltd electrogoniometers were used to measure the angles of ankle (SG110A) and knee (SG150)  joints in this study of lower extremity biomechanics.

keywords: Gonio bilateral hip knee ankle LE gait rehabilitation 2005

Click to enlargeThe Effect of Movement Frequency on Interlimb Coupling During Recumbent Stepping; PC Kao, D Ferris; Motor Control 2005, 9:144-163; Six Biometrics Ltd electrogoniometers were used to record hip, knee, and ankle joint angles bilaterally.

keywords: Gonio ankle hip LE neurophysiology spinal cord injury 2005

Alternate Leg Movement Amplifies Locomotor-Like Muscle Activity in Spinal Cord Injured Persons; N Kawashima, D Nozaki, MO Abe, M Akai, K Nakazawa; Journal of Neurophysiology 2005, 93:777-785; Biometrics Ltd electrogoniometers were used in this study using a passive locomotion device in spinal cord injury patients.

keywords: Gonio ankle LE brain research neuro rehabilitation gait 2004

Motor skill training induces changes in the excitability of the leg cortical area in healthy humans; M. Perez, B Lungholt, K Nyborg, J Nielsen; Experimental Brain Research 2004, 159:197-205; Training induced changes in cortical excitability may play an important role in rehabilitation of gait in patients with neurological disorders. This study investigated the effect of a 32 minute period of motor skill, non-skill, and passive training involving the ankle muscles on leg motor cortical excitability in healthy humans. Ankle movement was measured using Biometrics Ltd electrogoniometer.

keywords: Gonio knee ankle hip bilateral LE physiology biomechanics gait 2004

Neural coupling between upper and lower limbs during recumbent stepping; H Huang, D Ferris; Journal of Applied Physiology 2004, 97:1299-1308; In this study Biometrics Ltd electrogoniometers were used to measure bilateral hip, knee and ankle movements.

keywords: Gonio hip knee LE infants gait physiology 2003

Stumbling corrective responses during treadmill-elicited stepping in human infants; T Lam, C Wolstenholme, M van der Linden, M Pang, J Yang; Journal of Physiology 2003, 553:319-331; This study examined stumbling corrective (tripping) responses to mechanical disturbances applied to the foot during stepping in 33 healthy human infants ages 5-13 months. Biometrics Ltd electrogoniometers were used to measure the hip and knee movement.

keywords: Goniometer Ankle Diabetes exercise therapy LE 2002

The Effects of Range of Motion Therapy on the Plantar Pressures of patients with Diabetes Mellitus; J R Goldsmith, R H Lidtke, S Shott; Journal Of American Podiatric Medical Association Vol 92 No 9 October 2002; Biometrics Ltd goniometers used to measure ankle joint position prior to and during exercise therapy to increase joint mobility and reduce plantar pressures in diabetic patients.

keywords: Gonio hip LE infants proprioception gait 2002

Sensory Gating for the initiation of the Swing Phase in Different Directions of Human Infant Stepping; M Pang, J Yang; The Journal of Neuroscience 2002, 22(13):5734-5740; Biometrics Ltd electrogoniometers were used to measure hip position in 37 infants between the ages of 5 and 13 months.

keywords: Gonio knee LE arthritis rheumatology exercise 2002

Exercise can reverse quadriceps sensorimotor dysfunction that is associated with rheumatoid arthritis without exacerbating disease activity; LM Bearne, DL Scott, MV Hurley, Rheumatology 2002; 41:157-166; The objective of this study was to compare quadriceps sensorimotor function, lower limb functional performance and disability in patients with rheumatoid arthritis (RA) and healthy subjects, and to investigate the efficacy and safety of a brief rehabilitation program. Proprioception acuity was estimated from the acuity of reproduction of knee joint position sense measured with a Biometrics Ltd electrogoniometer.

keywords: Gonio K100 DL1001 M180 LE knee validity gait 2001

Validation of Flexible Electrogoniometry as a measure of Joint Kinematics; PJ Rowe, CM Myles, SJ Hillmann, ME Hazlewood; Physiotherapy Sept 2001, vol 87, no9 :479-488; The measurement of the Biometrics Ltd flexible electrogoniometer were investigated using a series of controlled experiments including comparison to a TV motion analysis system while measuring knee movement during gait.

keywords: Gonio M180 bilateral knee LE reliability biomechanics arthritis 2001

Movement of the knee in osteoarthritis: the use of electrogoniometry to assess function; C Walker; Journal of Bone and Joint Surgery 2001; 83-B: 195-198; This study 50 patients with knee osteoarthritis using Biometrics Ltd electrogoniometers concluded: “Electrogoniometry is relatively inexpensive, can be performed in a normal clinical setting with minimal inconvenience to the patient, and may prove to be a valuable objective tool for comparative evaluation of different prostheses or surgical techniques for total knee replacement.”

keywords: Gonio hip LE infants physiology 2001

Interlimb co-ordination in human infant stepping; M Pang, J Yang; The Journal of Physiology 2001, 533:617-625; Biometrics Ltd electrogoniometers were used to measure hip movement in twenty-eight infants aged from 4 to 12 months.

keywords: Gonio knee LE anatomy reliability 2000

Verification of selected anatomical landmarks used as reference points for universal goniometer positioning during knee joint mobility range measurements; P Szuic, J Lewandowski, B Marecki; Medical Science Monitor 2000, 7(2): 312-315; In this study Biometrics Ltd electrogoniometer was used as the accurate and reliable measurement to validate knee position measurements with a universal goniometer.

keywords: Gonio knee XM180 LE physiology 2000

Click to enlargeTotal power output generated during dynamic knee extensor exercise at different contraction frequencies; R Ferguson, P Aagaard, D Ball, A Sargeant, J Bangsbo; Journal of Applied Physiology 2000, 89:1912-1918; Biometrics Ltd electrogoniometers were used to for continuous measurement of knee joint angle and the angle between the lower limb and the connecting bar attached to the pedal arm of an ergometer.

keywords: Gonio hip knee ankle bilateral LE gait brain research 2000

Intentional on-line adaption of stride length in human walking; E Varraine, M Bonnard, J Pailhous; Experimental Brain Research 2000, 130:248-257; Biometrics Ltd electrogoniometers were used to measure bilateral hip, knee and ankle movements anad posture.

keywords: Gonio hip LE infants physiology 1998

Transient Disturbances to One Limb Produce Coordinated, Bilateral Responses During Infant Stepping; J Yang, M Stephens, R Vishram; The Journal of Physiology 1998; Biometrics Ltd electrogoniometers were used to measure the hip movement in infants 3-10 months of age.

keywords: Gonio hip LE infants physiology 1998

Infant stepping: a method to study the sensory control of human walking; J Yang, M Stephens, R Vishram; The Journal of Physiology 1998, 507:927-937; Biometrics Ltd electrogoniometers were used to measure hip movement in infants 10 days to 10 months of age.

keywords: Gonio hip knee ankle LE gait 1997

Intentional on-line control of propulsive forces in human gait; F Danion, M Bonnard, J Pailhous; Experimental Brain Research 1997, 116:525-538; The kinematics of the leg joints, which ensured the displacement of the foot tip, were recorded using Biometrics Ltd electrogoniometers placed on the hip, knee, and ankle.

Keywords: Gonio ankle LE reliability 1996

A Reliability Study of the Universal Goniometer, Fluid Goniometer, and Electrogoniometer for the Measurement of Ankle Dorsiflexion: K Rome, F Cowieson; Foot Ankle International 1996, Vol 17, No. 1, pp 28-32 This study investigated the reliability of three goniometers, the universal, fluid, and Biometrics Ltd electrogoniometers, in the measurement of ankle dorsiflexion. Intra- and interobserver reliability were assessed using 10 healthy volunteers and five observers. The results demonstrate that when using a highly standardized procedure, the flexible electrogoniometer was within an accepted criterion for reliability, suggesting good intra device reliability.

keywords: Gonio knee ankle footswithces LE gait pediatrics 1994

The Use of Therapeutic Electrical Stimulation in the treatment of Hemiplegic Cerebral Palsy; M Hazelwood,J Brown, P Rowe, P Salter; Developmental Medicine and Child Neurology, 1994, 36:661-673; Biometrics Ltd electrogoniometers and footswitches were used in this study to evaluate the effect of electrical stimulation of the anterior tibial muscles of children with hemiplegic cerebral palsy on the gait pattern and the range of active and passive lower extremity movement. dorsiflexion of the ankle. Foot switches were placed under the sole and heel of the foot and simultaneously recorded the pattern of contact of the foot with the floor so that the temporal parameters of the gait cycle could be analyzed. The use of electrogoniometers for gait analysis proved successful, and could provide therapists and physicians with a relatively cheap and versatile means of quantitatively monitoring gait pattern and the effects of therapy.

keywords: Gonio ankle LE podiatry 1994

Single Case Experiment to Investigate a Short Term Stretching Programme for Ankle Equinus; K Rome, A Clark; British Journal of Podiatric Medicine 1994, 49(2): 19-23; Biometrics Ltd electricgoniometers were used in this study is to evaluate a short term stretching programme for ankle equinus, using a high load, brief stretch tenique. The single case study has demonstrated the flexible electrogoniometer as a reliable instrument which is easy to use in the clinical setting.

keywords: Gonio ankle LE clinical measurement biomechanics reliability 1993

Reliability of Hindfoot Goniometry when Using a Flexible Electrogoniometer; P Ball, G Johnson; Clinical Biomechanics 1993; 8: 13-19 This paper describes the use of an Biometrics Ltd electrogoniometer for clinical assessment of subtalar motion and examines the important aspects of the clinical procedure.

keywords: Gonio hip knee LE clinical measurements gait reliability 1989

Measurement of Joint Motion; A Nicol; Clinical Rehabilitation 1989, 3: 1-9; This paper is about the development of the Biometrics Ltd electrogoniometer and its clinical applications: The device is very lightweight and the electrogoniometers can be worn beneath clothing, so the subject can move without inhibition. ...Tests using angular motion of the hip and knee joints...assessment of gait ...gait of amputees and patients cerebral palsy...assessing the postoperative performance of arthritic patients receiving the Souter-Strathclyde elbow prosthesis. It can be seen that electrogoniometers can provide information otherwise not available in a clinical environment.

keywords: Gonio hip knee bilateral LE biomechanics gait 1988

Flexible Goniometer Computer System for the Assessment of Hip Function - The Clinical Biomechanics Award 1988; P Rowe, A Nicol, I Kelly; Clinical Biomechanics 1988, 4:68-72; Biometrics Ltd flexible electrogoniometers were used to record the motion of both hips and knees in total hip replacement patients. Four flexible electrogoniometers are used to measure the flexion-extension angles of both hips and both knees. The electrogoniometer system has proved capable of quantifying the functional status of hip replacement patients simply and economically within the clinical environment.

keywords: Gonio knee Datalogger LE

Ambulatory Monitoring of the Pressures Beneath Compression Bandages; S Sockalingham, J Barbenel, D Queen; CARE Science and Practice, vol 8, no 2: 75-79; An integrated study on the performance of bandages which related pressures generated by the bandages to mechanical laboratory tests has highlighted the influence of posture on the interface pressures generated by these devices. The continuous ambulatory pressure monitoring system consisted of three elements, the pressure sensing device, a Biometrics Ltd goniometer to determine the position of the leg, and the Biometrics Ltd Datalogger for recording the output of the measuring devices. The goniometer allowed the stand/sit/lie sequence to be identified relatively easily. The effect of posture was also seen in the long-term measurements.

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