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https://www.readbyqxmd.com/read/27904794/pain-function-and-strength-outcomes-for-males-and-females-with-patellofemoral-pain-who-participate-in-either-a-hip-core-or-knee-based-rehabilitation-program
#1
Lori A Bolgla, Jennifer Earl-Boehm, Carolyn Emery, Karrie Hamstra-Wright, Reed Ferber
BACKGROUND: Hip exercise has been recommended for females with patellofemoral pain (PFP). It is unknown if males with PFP will benefit from a similar treatment strategy. HYPOTHESES/PURPOSE: The purpose of this study was to compare improvements in pain, function, and strength between males and females with PFP who participated in either a hip/core or knee rehabilitation program. The directional hypothesis was that females would respond more favorably to the hip/core rehabilitation program and males to the knee program...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27889189/reliability-of-gait-analysis-using-wearable-sensors-in-patients-with-knee-osteoarthritis
#2
Dylan Kobsar, Sean T Osis, Angkoon Phinyomark, Jeffrey E Boyd, Reed Ferber
The aim of this study was to determine the test-retest reliability of linear acceleration waveforms collected at the low back, thigh, shank, and foot during walking, in a cohort of knee osteoarthritis patients, by applying two separate sensor attitude correction methods (static attitude correction and dynamic attitude correction). Linear acceleration data were collected on the subjects׳ most affected limb during treadmill walking on two separate days. Results reveal all attitude corrected acceleration waveforms displayed high repeatability, with coefficient of multiple determination values ranging from 0...
November 16, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27814971/gait-biomechanics-in-the-era-of-data-science
#3
Reed Ferber, Sean T Osis, Jennifer L Hicks, Scott L Delp
Data science has transformed fields such as computer vision and economics. The ability of modern data science methods to extract insights from large, complex, heterogeneous, and noisy datasets is beginning to provide a powerful complement to the traditional approaches of experimental motion capture and biomechanical modeling. The purpose of this article is to provide a perspective on how data science methods can be incorporated into our field to advance our understanding of gait biomechanics and improve treatment planning procedures...
October 27, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27632841/patient-reported-outcomes-remain-improved-6-months-post-patellofemoral-pain-rehabilitation
#4
Karrie L Hamstra-Wright, Burcu Aydemir, Jennifer Earl-Boehm, Lori Bolgla, Carolyn Emery, Reed Ferber
BACKGROUND/OBJECTIVE: Hip and knee muscle strengthening programs are effective in improving short-term patient-reported and disease-oriented outcomes in individuals with patellofemoral pain (PFP), but little to no data exists on moderate to long-term post-rehabilitative outcomes. The first purpose of our study was to assess differences in pain, function, strength, and core endurance in individuals with PFP pre-, post-, and 6-months post- successful hip or knee muscle strengthening rehabilitation...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27580452/relationship-between-lower-limb-muscle-strength-self-reported-pain-and-function-and-frontal-plane-gait-kinematics-in-knee-osteoarthritis
#5
Sang-Kyoon Park, Dylan Kobsar, Reed Ferber
BACKGROUND: The relationship between muscle strength, gait biomechanics, and self-reported physical function and pain for patients with knee osteoarthritis is not well known. The objective of this study was to investigate these relationships in this population. METHODS: Twenty-four patients with knee osteoarthritis and 24 healthy controls were recruited. Self-reported pain and function, lower-limb maximum isometric force, and frontal plane gait kinematics during treadmill walking were collected on all patients...
October 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27522485/determination-of-patellofemoral-pain-sub-groups-and-development-of-a-method-for-predicting-treatment-outcome-using-running-gait-kinematics
#6
Ricky Watari, Dylan Kobsar, Angkoon Phinyomark, Sean Osis, Reed Ferber
BACKGROUND: Not all patients with patellofemoral pain exhibit successful outcomes following exercise therapy. Thus, the ability to identify patellofemoral pain subgroups related to treatment response is important for the development of optimal therapeutic strategies to improve rehabilitation outcomes. The purpose of this study was to use baseline running gait kinematic and clinical outcome variables to classify patellofemoral pain patients on treatment response retrospectively. METHODS: Forty-one individuals with patellofemoral pain that underwent a 6-week exercise intervention program were sub-grouped as treatment Responders (n=28) and Non-responders (n=13) based on self-reported measures of pain and function...
October 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27347862/individuals-with-patellofemoral-pain-have-less-hip-flexibility-than-controls-regardless-of-treatment-outcome
#7
Karrie L Hamstra-Wright, Jennifer Earl-Boehm, Lori Bolgla, Carolyn Emery, Reed Ferber
OBJECTIVE: To examine differences in hip flexibility before and after a 6-week muscle strengthening program between those with patellofemoral pain (PFP) and healthy controls. DESIGN: Single-blind, multicentered, randomized controlled trial. SETTING: Four clinical research laboratories. SUBJECTS: Physically active individuals (199 PFP and 38 controls). INTERVENTIONS: Patellofemoral pain and control subjects were randomized into either a hip-focused or a knee-focused muscle strengthening treatment program...
June 22, 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27131183/predicting-ground-contact-events-for-a-continuum-of-gait-types-an-application-of-targeted-machine-learning-using-principal-component-analysis
#8
Sean T Osis, Blayne A Hettinga, Reed Ferber
An ongoing challenge in the application of gait analysis to clinical settings is the standardized detection of temporal events, with unobtrusive and cost-effective equipment, for a wide range of gait types. The purpose of the current study was to investigate a targeted machine learning approach for the prediction of timing for foot strike (or initial contact) and toe-off, using only kinematics for walking, forefoot running, and heel-toe running. Data were categorized by gait type and split into a training set (∼30%) and a validation set (∼70%)...
May 2016: Gait & Posture
https://www.readbyqxmd.com/read/27072641/gender-differences-in-gait-kinematics-for-patients-with-knee-osteoarthritis
#9
Angkoon Phinyomark, Sean T Osis, Blayne A Hettinga, Dylan Kobsar, Reed Ferber
BACKGROUND: Females have a two-fold risk of developing knee osteoarthritis (OA) as compared to their male counterparts and atypical walking gait biomechanics are also considered a factor in the aetiology of knee OA. However, few studies have investigated sex-related differences in walking mechanics for patients with knee OA and of those, conflicting results have been reported. Therefore, this study was designed to examine the differences in gait kinematics (1) between male and female subjects with and without knee OA and (2) between healthy gender-matched subjects as compared with their OA counterparts...
2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27031047/kinematic-gait-patterns-and-their-relationship-to-pain-in-mild-to-moderate-hip-osteoarthritis
#10
Ryan J Leigh, Sean T Osis, Reed Ferber
BACKGROUND: Mild-to-moderate hip osteoarthritis is often managed clinically in a non-surgical manner. Effective non-surgical management of this population requires characterizing the specific impairments within this group. To date, a complete description of all lower extremity kinematics in mild-to-moderate hip osteoarthritis patients has not been presented. The aim of the present study is to describe the lower extremity gait kinematics in mild-to-moderate hip osteoarthritis patients and explore the relationship between kinematics and pain...
May 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/26918936/patient-reported-outcomes-remain-improved-6-months-post-patellofemoral-pain-rehabilitation
#11
Karrie L Hamstra-Wright, Burcu Aydemir, Jennifer Earl-Boehm, Lori Bolgla, Carolyn Emery, Reed Ferber
BACKGROUND/OBJECTIVE: Hip and knee muscle strengthening programs are effective in improving short-term patient-reported and disease-oriented outcomes in individuals with patellofemoral pain (PFP), but little to no data exists on moderate to long-term post-rehabilitative outcomes. The first purpose of our study was to assess differences in pain, function, strength, and core endurance in individuals with PFP pre-, post-, and 6-months post- successful hip or knee muscle strengthening rehabilitation...
February 26, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/26805699/effects-of-strengthening-and-stretching-exercise-programmes-on-kinematics-and-kinetics-of-running-in-older-adults-a-randomised-controlled-trial
#12
Reginaldo K Fukuchi, Darren J Stefanyshyn, Lisa Stirling, Reed Ferber
The aim of this study was to investigate the effects of strengthening and stretching exercises on running kinematics and kinetics in older runners. One hundred and five runners (55-75 years) were randomly assigned to either a strengthening (n = 36), flexibility (n = 34) or control (n = 35) group. Running kinematics and kinetics were obtained using an eight-camera system and an instrumented treadmill before and after the eight-week exercise protocol. Measures of strength and flexibility were also obtained using a dynamometer and inclinometer/goniometer...
September 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/26765846/effects-of-simulated-marker-placement-deviations-on-running-kinematics-and-evaluation-of-a-morphometric-based-placement-feedback-method
#13
Sean T Osis, Blayne A Hettinga, Shari Macdonald, Reed Ferber
In order to provide effective test-retest and pooling of information from clinical gait analyses, it is critical to ensure that the data produced are as reliable as possible. Furthermore, it has been shown that anatomical marker placement is the largest source of inter-examiner variance in gait analyses. However, the effects of specific, known deviations in marker placement on calculated kinematic variables are unclear, and there is currently no mechanism to provide location-based feedback regarding placement consistency...
2016: PloS One
https://www.readbyqxmd.com/read/26456422/kinematic-gait-patterns-in-healthy-runners-a-hierarchical-cluster-analysis
#14
Angkoon Phinyomark, Sean Osis, Blayne A Hettinga, Reed Ferber
Previous studies have demonstrated distinct clusters of gait patterns in both healthy and pathological groups, suggesting that different movement strategies may be represented. However, these studies have used discrete time point variables and usually focused on only one specific joint and plane of motion. Therefore, the first purpose of this study was to determine if running gait patterns for healthy subjects could be classified into homogeneous subgroups using three-dimensional kinematic data from the ankle, knee, and hip joints...
November 5, 2015: Journal of Biomechanics
https://www.readbyqxmd.com/read/26444426/gait-biomechanics-and-patient-reported-function-as-predictors-of-response-to-a-hip-strengthening-exercise-intervention-in-patients-with-knee-osteoarthritis
#15
Dylan Kobsar, Sean T Osis, Blayne A Hettinga, Reed Ferber
OBJECTIVE: Muscle strengthening exercises have been shown to improve pain and function in adults with mild-to-moderate knee osteoarthritis, but individual response rates can vary greatly. Predicting individuals who respond and those who do not is important in developing a more efficient and effective model of care for knee osteoarthritis (OA). Therefore, the purpose of this study was to use pre-intervention gait kinematics and patient-reported outcome measures to predict post-intervention response to a 6-week hip strengthening exercise intervention in patients with mild-to-moderate knee OA...
2015: PloS One
https://www.readbyqxmd.com/read/26340274/do-intermediate-and-higher-order-principal-components-contain-useful-information-to-detect-subtle-changes-in-lower-extremity-biomechanics-during-running
#16
Angkoon Phinyomark, Blayne A Hettinga, Sean Osis, Reed Ferber
Recently, a principal component analysis (PCA) approach has been used to provide insight into running pathomechanics. However, researchers often account for nearly all of the variance from the original data using only the first few, or lower-order principal components (PCs), which are often associated with the most dominant movement patterns. In contrast, intermediate- and higher-order PCs are generally associated with subtle movement patterns and may contain valuable information about between-group variation and specific test conditions...
December 2015: Human Movement Science
https://www.readbyqxmd.com/read/26015327/a-comparison-of-different-over-the-counter-foot-orthotic-devices-on-multi-segment-foot-biomechanics
#17
Reed Ferber, Blayne A Hettinga
BACKGROUND: Over-the-counter foot orthoses are a cost-effective alternative to custom-made devices. However, few studies have compared over-the-counter devices and most biomechanical research involving orthoses has focused on rearfoot biomechanics. OBJECTIVES: To determine changes in multi-segment foot biomechanics during shod walking in three commercially available over-the-counter devices: SOLE, SuperFeet and Powerstep when compared to no orthotic. STUDY DESIGN: Repeated measures, cross-sectional study...
May 26, 2015: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/25875071/experimentally-reduced-hip-abductor-muscle-strength-and-frontal-plane-biomechanics-during-walking
#18
Michael B Pohl, Karen D Kendall, Chirag Patel, J Preston Wiley, Carolyn Emery, Reed Ferber
CONTEXT: Researchers have postulated that reduced hip-abductor muscle strength may have a role in the progression of knee osteoarthritis by increasing the external knee-adduction moment. However, the relationship between hip-abductor strength and frontal-plane biomechanics remains unclear. OBJECTIVE: To experimentally reduce hip-abduction strength and observe the subsequent changes in frontal-plane biomechanics. DESIGN: Descriptive laboratory study...
April 2015: Journal of Athletic Training
https://www.readbyqxmd.com/read/25869422/comparison-of-hip-and-knee-strength-in-males-with-and-without-patellofemoral-pain
#19
RANDOMIZED CONTROLLED TRIAL
Lori A Bolgla, Jennifer Earl-Boehm, Carolyn Emery, Karrie Hamstra-Wright, Reed Ferber
OBJECTIVES: The primary purpose of this study was to compare hip strength in males with and without patellofemoral pain (PFP). The secondary purpose was to compare knee strength in males with and without PFP. DESIGN: Secondary analysis of cross-sectional data for males with and without PFP from a larger randomized controlled trial examining hip and core versus knee-muscle strengthening for the treatment of PFP. SETTING: Laboratory setting...
August 2015: Physical Therapy in Sport
https://www.readbyqxmd.com/read/25467200/the-effect-of-the-addition-of-hip-strengthening-exercises-to-a-lumbopelvic-exercise-programme-for-the-treatment-of-non-specific-low-back-pain-a-randomized-controlled-trial
#20
RANDOMIZED CONTROLLED TRIAL
Karen D Kendall, Carolyn A Emery, J Preston Wiley, Reed Ferber
OBJECTIVES: To compare the efficacy of two exercise programmes in reducing pain and disability for individuals with non-specific low back pain and to examine the underlying mechanical factors related to pain and disability for individuals with NSLBP. DESIGN: A single-blind, randomized controlled trial. METHODS: Eighty participants were recruited from eleven community-based general medical practices and randomized into two groups completing either a lumbopelvic motor control or a combined lumbopelvic motor control and progressive hip strengthening exercise therapy programme...
November 2015: Journal of Science and Medicine in Sport
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