Browsing Physiotherapy by Author "Kozey, John W"
Now showing items 1-5 of 5
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Activation amplitude patterns do not change for back muscles but are altered for abdominal muscles between dominant and non-dominant hands during one-handed lifts
Butler, Heather L; Hubley-Kozey, Cheryl L; Kozey, John W (SpringerLink, 2009-05)It is assumed when lifting with the dominant hand that the relationship between contralateral and ipsilateral trunk muscle responses are similar to when lifting with the non-dominant hand. The purpose of this study was to ... -
Changes in electromyographic activity of trunk muscles within the sub-acute phase for individuals deemed recovered from a low back injury
Butler, Heather L; Hubley-Kozey, Cheryl; Kozey, John W (Elsevier, 2013-04)Evidence indicates that previous low back injury (LBI) is a strong predictor for re-injury. The purpose of this study was to examine whether neuromuscular patterns remain altered in a LBI group who were deemed recovered. ... -
Differences in Abdominal Muscle Activation Patterns of Younger and Older Adults Performing an Asymmetric Leg-Loading Task
Hubley-Kozey, Cheryl L; Hanada, Edwin Y; Gordon, Sarah; Kozey, John W; McKeon, Melissa (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 ... -
Electromyographic assessment of trunk muscle activation amplitudes during a simulated lifting task using pattern recognition techniques
Butler, Heather L; Hubley-Kozey, Cheryl L; Kozey, John W (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 ... -
The interpretation of abdominal wall muscle recruitment strategies change when the electrocardiogram (ECG) is removed from the electromyogram (EMG)
Butler, Heather L; Newell, Robyn; Hubley-Kozey, Cheryl L; Kozey, John W (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 ...