Browsing by Subject "Electromyography"
Now showing items 1-20 of 28
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Activation amplitude and temporal synchrony among back extensor and abdominal muscles during a controlled transfer task: comparison of men and women
(Elsevier, 2012-08)Muscle synergies are important for spinal stability, but few studies examine temporal responses of spinal muscles to dynamic perturbations. This study examined activation amplitudes and temporal synergies among compartments ... -
Age-related changes in trunk neuromuscular activation patterns during a controlled functional transfer task include amplitude and temporal synergies
(Elsevier, 2014)While healthy aging is associated with physiological changes that can impair control of trunk motion, few studies examine how spinal muscle responses change with increasing age. This study examined whether older (over 65 ... -
Anticipatory and Reactionary EMG and Knee Joint Kinematics Between Male and Female Athletes during Single-Leg Landing Tasks: Relevance to Non-Contact ACL Injuries
(2022-12-14)Background: Females are more likely to suffer anterior cruciate ligament (ACL) injuries. Muscle activity may be responsible in preventing ACL tears during jump-landings. Purpose: To determine a) whether sex differences ... -
Asymptomatic and symptomatic individuals with the same radiographic evidence of knee osteoarthritis walk with different knee moments and muscle activity
(Wiley, 2016-11-01)There is an established discordance between the structural joint damage and clinical symptoms of knee osteoarthritis; however, there has been little investigation into the differences in joint level biomechanics and muscle ... -
A Biomechanical and Neuromuscular Investigation of Femoroacetabular Impingement: Understanding Pathomechanics using Inclined and Declined Walking
(2020-08-26)Femoroacetabular impingement (FAI) is a proliferative musculoskeletal diagnosis in young adults. The purpose of the current study was to investigate the effect of challenged walking on gait mechanics in individuals with ... -
Changes in Knee Joint Muscle Activation Patterns during Walking Associated with Increased Structural Severity in Knee Osteoarthritis
(Elsevier, 2013)Purpose To determine whether alterations in knee joint muscle activation patterns during gait were related to structural severity determined by Kellgren–Lawrence (KL) radiographic grades, for those with a moderate knee ... -
CONTRA-LATERAL KNEE JOINT FUNCTION IN MODERATE KNEE OSTEOARTHRITIS: AN ELECTROMYOGRAPHIC INVESTIGATION OF KNEE MUSCLE CO-CONTRACTION
(2017-08-28)Unilateral knee osteoarthritis (OA) often progresses to bilateral disease, yet studies focused on joint function during walking often test the symptomatic knee only. The thesis objectives were: i) identify whether ... -
Differences in Abdominal Muscle Activation Patterns of Younger and Older Adults Performing an Asymmetric Leg-Loading Task
(Elsevier, 2009-11)Objectives: To determine whether differences exist between younger (20-50 years) and older adults ( 65 years) in abdominal muscle amplitudes, temporal patterns, and threedimensional (3D) pelvic motion, while performing ... -
THE EFFECT OF HEALTHY AGING ON TRUNK NEUROMUSCULAR ACTIVATION PATTERNS DURING A CONTROLLED FUNCTIONAL TRANSFER TASK
(2013-04-08)Healthy aging is associated with an increased incidence of injuries such as low back pain and falling. Age-related changes in trunk neuromuscular activation patterns could potentially explain uncontrolled trunk motion, a ... -
The effect of knee joint effusion on gait mechanics and muscle activation characteristics in moderate knee osteoarthritis
(2018-08-29)Knee osteoarthritis (OA) is one of the most prevalent joint diseases, and knee effusion, as a manifestation of synovitis, is associated with knee OA clinical outcomes and disease progression. Thesis objectives were i) to ... -
Electromyographic assessment of trunk muscle activation amplitudes during a simulated lifting task using pattern recognition techniques
(Elsevier, 2009-12)This study sought to determine the patterns of neuromuscular response from 24-trunk muscle sites during a symmetrical lift and replace task. Surface electromyograms (EMG) and kinematic variables were recorded from 29 healthy ... -
Explaining the hip adduction moment variability during gait: Implications for hip abductor strengthening
(Elsevier, 2009)Background There is emerging interest in hip abductor function during gait and its potential relationship to knee joint pathology. During gait, the hip abductor muscles are primarily responsible for generating moments of ... -
Factors affecting knee joint muscle activation patterns during gait in individuals with knee osteoarthritis
(2012-01-03)Knee osteoarthritis (OA) is a progressive disease and a leading cause of morbidity in older adults, resulting in severe mobility limitations. While the osteoligamentous and neuromuscular systems are altered in knee OA, ... -
Hip abductor function in individuals with medial knee osteoarthritis: Implications for medial compartment loading during gait
(Elsevier, 2014)Background Hip abductor muscles generate moments of force that control lower extremity frontal plane motion. Strengthening these muscles has been a recent trend in therapeutic intervention studies for knee osteoarthritis. ... -
The interpretation of abdominal wall muscle recruitment strategies change when the electrocardiogram (ECG) is removed from the electromyogram (EMG)
(Elsevier, 2009-04)The purpose of this study was to determine the effect of the ECG artifact on low-level trunk muscle activation amplitudes and assess the effectiveness of two methods used to remove the ECG. Simulations were performed and ... -
INVESTIGATING THE EFFECT OF TASK NATURE ON CORTICOSPINAL EXCITABILITY DURING MOTOR IMAGERY
(2023-11-18)Little research has gone into investigating the role of task used in learning via motor imagery. It is possible that our understanding of imagery might be influenced by the task chosen for its study. To ascertain if previous ... -
AN INVESTIGATION OF ELECTROMYOGRAPHIC ACTIVITY DIFFERENCES IN PARTICIPANTS RECOVERED FROM A LOW BACK INJURY
(2017-12-14)Introduction: The purpose of this analysis was to investigate for differences in EMG activity between a recovered LBI military and non-military population during a standardized functional task. Methods: A secondary analysis ... -
Knee joint biomechanics and neuromuscular control during gait before and after total knee arthroplasty are sex-specific.
(Elsevier, 2015-01-30)The future of total knee arthroplasty (TKA) surgery will involve planning that incorporates more patient-specific characteristics. Despite known biological, morphological, and functional differences between men and women, ... -
Maximal voluntary isometric contraction exercises: A methodological investigation in moderate knee osteoarthritis
(Elsevier, 2011)Purpose: The objectives were, (i) to determine whether differences exist in relative activation amplitudes for participants with asymptomatic knees and participants with moderate medial compartment knee osteoarthritis ... -
Neuromuscular alterations exist with knee osteoarthritis presence and severity despite walking velocity similarities
(Elsevier, 2011)Background Neuromuscular strategies during walking in individuals with knee osteoarthritis are being explored for diagnostic information; however, isolating differences to disease progression is difficult given walking ...
