Abstract:
BACKGROUND:The single leg squat (SLS) is a common lower limb rehabilitation exercise. It is also frequently used as an evaluative exercise to screen for an increased risk of lower limb injury. To date athlete / patient SLS technique has been assessed using expensive laboratory equipment or subjective clinical judgement; both of which are not without shortcomings. Inertial measurement units (IMUs) may offer a low cost solution for the objective evaluation of athlete / patient SLS technique. OBJECTIVES:The aims of this study were to determine if in combination or in isolation IMUs positioned on the lumbar spine, thigh and shank are capable of: (a) distinguishing between acceptable and aberrant SLS technique; (b) identifying specific deviations from acceptable SLS technique. METHODS:Eighty-three healthy volunteers participated (60 males, 23 females, age: 24.68 + / - 4.91 years, height: 1.75 + / - 0.09 m, body mass: 76.01 + / - 13.29 kg). All participants performed 10 SLSs on their left leg. IMUs were positioned on participants' lumbar spine, left shank and left thigh. These were utilized to record tri-axial accelerometer, gyroscope and magnetometer data during all repetitions of the SLS. SLS technique was labelled by a Chartered Physiotherapist using an evaluation framework. Features were extracted from the labelled sensor data. These features were used to train and evaluate a variety of random-forests classifiers that assessed SLS technique. RESULTS:A three IMU system was moderately successful in detecting the overall quality of SLS performance (77 % accuracy, 77 % sensitivity and 78 % specificity). A single IMU worn on the shank can complete the same analysis with 76 % accuracy, 75 % sensitivity and 76 % specificity. Single sensors also produce competitive classification scores relative to multi-sensor systems in identifying specific deviations from acceptable SLS technique. CONCLUSIONS:A single IMU positioned on the shank can differentiate between acceptable and aberrant SLS technique with moderate levels of accuracy. It can also capably identify specific deviations from optimal SLS performance. IMUs may offer a low cost solution for the objective evaluation of SLS performance. Additionally, the classifiers described may provide useful input to an exercise biofeedback application.
journal_name
Methods Inf Medjournal_title
Methods of information in medicineauthors
Whelan DF,O'Reilly MA,Ward TE,Delahunt E,Caulfield Bdoi
10.3414/ME16-02-0002subject
Has Abstractpub_date
2017-03-23 00:00:00pages
88-94issue
2eissn
0026-1270issn
2511-705Xpii
16-02-0002journal_volume
56pub_type
临床试验,杂志文章abstract:OBJECTIVES:In this study, we evaluated the internal validity of EPICON, an application for grouping ICPC-coded diagnoses from electronic medical records into episodes of care. These episodes are used to estimate morbidity rates in general practice. METHODS:Morbidity rates based on EPICON were compared to a gold standa...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVE:To intensify the collaboration between WHO, the World Health Organization, and IMIA, the International Medical Informatics Association. METHODS:Identifying key areas of collaboration and publishing a joint communiqué during Medinfo 2007 in Brisbane, Australia. RESULTS AND CONCLUSIONS:WHO and IMIA have ident...
journal_title:Methods of information in medicine
pub_type: 社论
doi:10.1160/me5006
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abstract::A rough-sets approach was applied to a data set consisting of animal study results and other compound characteristics to generate local and global (certain/possible) sets of rules for prediction of developmental toxicity in human subjects. A modified version of the rough-sets approach is proposed to allow the construc...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
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journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME14-01-0093
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journal_title:Methods of information in medicine
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journal_title:Methods of information in medicine
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更新日期:1989-11-01 00:00:00
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journal_title:Methods of information in medicine
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journal_title:Methods of information in medicine
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1999-09-01 00:00:00
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journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
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journal_title:Methods of information in medicine
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journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1994-03-01 00:00:00
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journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
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journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2004-01-01 00:00:00
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journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1997-12-01 00:00:00
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journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2004-01-01 00:00:00
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journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
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journal_title:Methods of information in medicine
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doi:
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journal_title:Methods of information in medicine
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doi:
更新日期:2002-01-01 00:00:00
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journal_title:Methods of information in medicine
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doi:
更新日期:1997-12-01 00:00:00
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journal_title:Methods of information in medicine
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doi:
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journal_title:Methods of information in medicine
pub_type: 杂志文章,多中心研究
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更新日期:2006-01-01 00:00:00
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journal_title:Methods of information in medicine
pub_type: 社论
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journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2006-01-01 00:00:00
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journal_title:Methods of information in medicine
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更新日期:2014-01-01 00:00:00
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journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2005-01-01 00:00:00
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journal_title:Methods of information in medicine
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