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Full-Text Articles in Medicine and Health Sciences
Running Biomechanics Differ During And After Pregnancy Compared To Females Who Have Never Been Pregnant, Jennifer J. Bagwell, Elizabeth Avila, Nicholas Reynolds, Jo Armour Smith, Kevin Valenzuela, Dimitrios Katsavelis
Running Biomechanics Differ During And After Pregnancy Compared To Females Who Have Never Been Pregnant, Jennifer J. Bagwell, Elizabeth Avila, Nicholas Reynolds, Jo Armour Smith, Kevin Valenzuela, Dimitrios Katsavelis
Physical Therapy Faculty Articles and Research
Background
Perinatal running participation has increased recently; however, pregnancy related symptoms can limit activity. Perinatal running biomechanics could inform interventions to help perinatal individuals maintain an active lifestyle.
Research question
Are perinatal running biomaechanics and muscle activation different compared to nulligravida females?
Methods
Sixteen pregnant participants completed self-selected velocity running during second trimester (2 T), third trimester (3 T), and postpartum (PP) and 16 matched controls completed these procedures once in this case control study. Kinematic, kinetic, and electromyography (EMG) data were collected using a motion capture system, force plates, and EMG electrodes. Peak trunk, pelvis, hip, knee, and ankle …
An Exploratory Analysis Of Gait Biomechanics And Muscle Activation In Pregnant Females With High And Low Scores For Low Back Or Pelvic Girdle Pain During And After Pregnancy, Jennifer J. Bagwell, Nicholas Reynolds, Jo Armour Smith, Michelle Walaszek, Hannah Runez, Kristina Lam, Julie Peterson, Dimitrios Katsavelis
An Exploratory Analysis Of Gait Biomechanics And Muscle Activation In Pregnant Females With High And Low Scores For Low Back Or Pelvic Girdle Pain During And After Pregnancy, Jennifer J. Bagwell, Nicholas Reynolds, Jo Armour Smith, Michelle Walaszek, Hannah Runez, Kristina Lam, Julie Peterson, Dimitrios Katsavelis
Physical Therapy Faculty Articles and Research
Background
The purpose of this study was to compare gait kinematics, kinetics, and muscle activation between pregnant females with high and low scores for low back and/or pelvic girdle pain during and after pregnancy.
Methods
Twenty participants tested during second trimester, third trimester, and again post-partum. At each session, motion capture, force plates, and surface electromyography data were captured during self-selected velocity over-ground walking. Participants completed the Quebec Back Pain Disability Scale (QBPDS) and were assigned to high (QBPDS ≥15) or low pain groups (QBPDS
Findings
Nine participants met the high pain group criteria and 11 were low pain. During …
Lower Extremity Kinetics And Muscle Activation During Gait Are Significantly Different During And After Pregnancy Compared To Nulliparous Females, Jennifer J. Bagwell, Nicholas Reynolds, Michelle Walaszek, Hannah Runez, Kristina Lam, Jo Armour Smith, Dimitrios Katsavelis
Lower Extremity Kinetics And Muscle Activation During Gait Are Significantly Different During And After Pregnancy Compared To Nulliparous Females, Jennifer J. Bagwell, Nicholas Reynolds, Michelle Walaszek, Hannah Runez, Kristina Lam, Jo Armour Smith, Dimitrios Katsavelis
Physical Therapy Faculty Articles and Research
Background
Low back, pelvic, and lower extremity pain are common during and after pregnancy. Understanding differences in mechanics between pregnant and non-pregnant females is a first step toward identifying potential pathological mechanisms. The primary purpose of this study was to compare joint kinetics and muscle activation during gait between females during and after pregnancy to nulliparous females.
Methods
Twenty pregnant females completed testing on three occasions (second trimester, third trimester, and post-partum), while 20 matched, nulliparous controls were tested once. Motion capture, force data, and surface electromyography were averaged across seven trials during gait. Lower extremity kinematics, lower extremity moments …
Biomechanical Characteristics Of Lumbar Manipulation Performed By Expert, Resident, And Student Physical Therapists, Joseph M. Derian, Jo Armour Smith, Yue Wang, Wilson Lam, Kornelia Kulig
Biomechanical Characteristics Of Lumbar Manipulation Performed By Expert, Resident, And Student Physical Therapists, Joseph M. Derian, Jo Armour Smith, Yue Wang, Wilson Lam, Kornelia Kulig
Physical Therapy Faculty Articles and Research
Background
Lumbar manipulation is a commonly used treatment for low back pain, but little research evidence exists regarding practitioner biomechanics during manipulation. Most existing evidence describes rate of force production through the hands into instrumented manikins and it is unclear how the practitioner moves their body and legs to generate this force.
Objectives
To identify and characterize important kinetic and kinematic factors in practitioners of varying experience performing lumbar manipulation in order to identify which factors distinguish experts from less experienced practitioners.
Study design
This was a cohort observational laboratory study.
Methods
43 male physical therapists (PT) and PT students …
Adaptations Of Lumbar Biomechanics After Four Weeks Of Running Training With Minimalist Footwear And Technique Guidance: Implications For Running-Related Lower Back Pain, Szu-Ping Lee, Joshua P. Bailey, Jo Armour Smith, Stephanie Barton, David Brown, Talia Joyce
Adaptations Of Lumbar Biomechanics After Four Weeks Of Running Training With Minimalist Footwear And Technique Guidance: Implications For Running-Related Lower Back Pain, Szu-Ping Lee, Joshua P. Bailey, Jo Armour Smith, Stephanie Barton, David Brown, Talia Joyce
Physical Therapy Faculty Articles and Research
Objectives
To investigate the changes in lumbar kinematic and paraspinal muscle activation before, during, and after a 4-week minimalist running training.
Design
Prospective cohort study.
Setting
University research laboratory.
Participants
Seventeen habitually shod recreational runners who run 10–50 km per week.
Main outcome measures
During stance phases of running, sagittal lumbar kinematics was recorded using an electrogoniometer, and activities of the lumbar paraspinal muscles were assessed by electromyography. Runners were asked to run at a prescribed speed (3.1 m/s) and a self-selected speed.
Results
For the 3.1 m/s running speed, significant differences were found in the calculated mean lumbar posture …