Adaptation in motor strategies for postural control associated with sensory reweighting.

The purpose of this study was to identify and differentiate the motor strategies associated with sensory reweighting adapted during specific sensory integration tasks by healthy young adults. Thirty-six subjects (age range: 21-33 years) performed standing computerized dynamic posturography balance tasks across progressively increasing amplitudes of visual (VIS), somatosensory (SOM) and both (VIS+SOM) systems perturbation conditions. Adaptation in the motor strategy was measured as changes in electromyographic (EMG) activities and joint angles.

Exploration of arm weight effects on hemiparetic stroke participants' gait performance.

Background: This study explores the potential benefits of an arm weight intervention for improving gait performance in stroke survivors. Consistent with an interlimb neural coupling mechanism, the investigators hypothesized that arm weight would improve gait performance.

Methods: Nine stroke and nine healthy participants (1 female; age: 58.

Is the quality of systematic reviews influenced by prospective registration: a methods review of systematic musculoskeletal physical therapy reviews.

Introduction: It is unknown if verified prospective registration of systematic reviews (SRs) and the randomized clinical trials (RCTs) that they use affect an SR's methodological quality on A MeaSurement Tool to Assess Systematic Reviews 2 (AMSTAR 2).

Methods: Data originated from interventional SRs published in International Society of Physiotherapy Journals Editors (ISPJE) member journals, indexed in MEDLINE, between 1 January 2018 and 18 August 2021. Blinded reviewers identified the SRs and extracted the data for the variables of interest for the SRs and the RCTs.

Do Prospective Intent and Established Metrics Correlate with Journal Impact Factor in Musculoskeletal Physical Therapy Trials?: A Secondary Analysis of A Methodological Review.

Objectives: To determine if there are any statistically significant associations between: 1) randomized clinical trials (RCTs) investigating physical therapy musculoskeletal interventions, 2) journal impact factor (JIF), 3) frequency of RCT citation, 4) whether prospective intent was identifiable, and 5) the Physiotherapy Evidence Database (PEDro) scores.

Methods: MEDLINE indexed RCTs addressing musculoskeletal interventions published between January 2016 and July 2020 in physical therapy journals were included. Two blinded reviewers identified the RCTs and extracted the variables of interest.

The Unknown Prevalence of Postrandomization Bias in 15 Physical Therapy Journals: A Methods Review.

Objectives: To determine the prevalence of prospective clinical trial registration and postrandomization bias in published musculoskeletal physical therapy randomized clinical trials (RCTs).

Design: A methods review.

Literature Search: Articles indexed in MEDLINE and published between January 2016 and July 2020 were included.

Immediate Improvements in Patellofemoral Pain Are Associated With Sagittal Plane Movement Training to Improve Use of Gluteus Maximus Muscle During Single Limb Landing.

Objective: The authors sought to examine the immediate effects of movement training aimed at improving use of gluteus maximus (GMAX) in the sagittal plane on hip internal rotation and self-reported patellofemoral pain (PFP) during single-limb landing.

Methods: Seventeen females with PFP participated. Lower extremity kinematics and kinetics, GMAX activation, and self-reported PFP were obtained before and after a single-session movement training program aimed at increasing the use of GMAX.

Should low-quality evidence dominate high-level evidence? A systematic review and meta-analysis of systematic reviews of musculoskeletal physical therapy interventions.

Objectives: To determine the: 1) quality of articles cited in systematic reviews (SRs); 2) methodological quality of the SRs; and 3) impact of quality on level 1A evidence.

Methods: SRs related to musculoskeletal physical therapy interventions were identified. The methodological quality of the SRs and articles cited by the SRs were assessed by two blinded reviewers.

Kinematic Validation of Postural Sway Measured by Biodex Biosway (Force Plate) and SWAY Balance (Accelerometer) Technology.

Background: The Biodex Biosway® Balance System and SWAY Balance® Mobile smartphone application (SBMA) are portable instruments that assess balance function with force plate and accelerometer technology, respectively. The validity of these indirect clinical measures of postural sway merits investigation.

Purpose: The purpose of this study was to investigate the concurrent validity of standing postural sway measurements by using the portable Biosway and SBMA systems with kinematic measurements of the whole body Center of Mass (COM) derived from a gold-standard reference, a motion capture system.

Low reproducibility of randomized clinical trials methodology related to sampling: a systematic methodological review.

: The reporting of sampling methods in Randomized Clinical Trials (RCTs) allows for research quality assessment, determination of sampling bias, and assures the presence of details necessary for reproducibility in future trials. The purpose of this study was to: (1) determine if sampling methodology was reproducible in RCTs related to musculoskeletal physical therapy (MSKPT) interventions to treat non-specific low back pain (NSLBP) and (2) establish if there was a relationship between sample reproducibility and established measures of research quality.: Data were collected through a systematic review by a professional librarian.

Volitional Preemptive Abdominal Contraction and Upper Extremity Muscle Latencies During D1 Flexion and Scaption Shoulder Exercises.

Context: The abdominal-bracing maneuver, a volitional preemptive abdominal contraction (VPAC) strategy, is commonly used during resisted shoulder exercises. How VPAC affects shoulder-muscle function during resisted shoulder exercise is unknown.

Objective: To identify the effects of VPAC on selected parascapular and glenohumeral muscles during specific shoulder exercises with or without resistance.

Effects of arm weight on gait performance in healthy subjects.

Previous studies have investigated how additional arm weights affect gait. Although light weights (0.45 kg) seemed to elicit performance improvements in Parkinsonian patients, it was not studied how light weights affect gait parameters in healthy individuals.

Changes in patellofemoral pain resulting from repetitive impact landings are associated with the magnitude and rate of patellofemoral joint loading.

Background: Although a relationship between elevated patellofemoral forces and pain has been proposed, it is unknown which joint loading variable (magnitude, rate) is best associated with pain changes. The purpose of this study was to examine associations among patellofemoral joint loading variables and changes in patellofemoral pain across repeated single limb landings.

Methods: Thirty-one females (age: 23.

A systematic review of orthopaedic manual therapy randomized clinical trials quality.

: Systematic review and meta-analysis. : To conduct a systematic review and meta-analysis of randomized clinical trials (RCTs) in the orthopaedic manual therapy (OMT) literature from January 2010 to June 2014 in order to determine if the CONSORT checklist and Cochrane Risk of Bias (RoB) assessment tools: (1) are reliable; (2) have improved the reporting and decreased the risk of bias in RCTs in the OMT literature; (3) differ based on journal impact factor (JIF); and (4) scores are associated with each other. : The CONSORT statement is used to improve the accuracy of reporting within RCTs.

Effects of Volitional Spine Stabilization and Lower-Extremity Fatigue on the Knee and Ankle During Landing Performance in a Population With Recurrent Low Back Pain.

Introduction: Recurrent lower back pain (rLBP) and neuromuscular fatigue are independently thought to increase the risk of lower extremity (LE) injury. Volitional preemptive abdominal contraction (VPAC) is thought to improve lumbar spine and pelvis control in individuals with rLBP. The effects of VPAC on fatigued landing performance in individuals with rLBP are unknown.

Effects of Volitional Spine Stabilization and Lower Extremity Fatigue on Trunk Control During Landing in Individuals With Recurrent Low Back Pain.

Study Design: Controlled laboratory study.

Background: Recurrent low back pain (LBP) and neuromuscular fatigue are independently thought to increase the risk of spine injury. Volitional preemptive abdominal contraction (VPAC) is thought to improve lumbar spine and pelvis control in individuals with recurrent LBP.

The Effects of Volitional Preemptive Abdominal Contraction on Postural Control Responses in Healthy Subjects.

Objective: To investigate the effect of volitional preemptive abdominal contraction by using an abdominal bracing maneuver (ABM) on postural control responses.

Design: A within-subjects, repeated-measure, experimental design.

Setting: Laboratory.

Association of disturbances in the thoracic outlet in subjects with carpal tunnel syndrome: a case-control study.

Introduction: A limited amount of research has investigated the potential relationship between carpal tunnel syndrome (CTS) and thoracic outlet dysfunction.

Purpose Of The Study: To compare the prevalence of positive clinical tests suggestive of disputed neurogenic thoracic outlet syndrome (TOS) in subjects with CTS (CTS+) with that of subjects without CTS (control).

Study Design: Case-control study.

Effects of tai chi exercise on posturography, gait, physical function and quality of life in postmenopausal women with osteopaenia: a randomized clinical study.

Objective: to evaluate the effects of tai chi exercise on risk factors for falls in postmenopausal women with osteopaenia through measurements of balance, gait, physical function and quality of life.

Design: a randomized, controlled, single-blinded, 24-week trial with stratification by age and bone mass.

Setting: general community.

The effect of stretching on muscle responses and postural sway responses during computerized dynamic posturography in women and men.

Objective: To evaluate the effect of stretching on the parameters of postural sway and on the kinematic variables associated with balance control in women and men.

Design: Mixed repeated measures design with 2 levels.

Setting: Research laboratory.

The double crush syndrome: a common occurrence in cyclists with ulnar nerve neuropathy-a case-control study.

Objective: To evaluate the incidence of double crush syndrome in the upper limbs of cyclists with clinical diagnosis of ulnar nerve neuropathy.

Design: Case-control study.

Setting: Outpatient clinics and university setting.

2006 Young Investigator Award Winner: lumbosacral nerve root displacement and strain: part 2. A comparison of 2 straight leg raise conditions in unembalmed cadavers.

Study Design: An inferential cadaveric study.

Objectives: To compare the displacement and strain of the lumbosacral nerve roots during different conditions of straight leg raise (SLR) with intact foraminal ligaments.

Summary Of Background Data: Clinicians use sensitizing movements such as dorsiflexion during neurodynamic testing, assuming that these prepositions influence the displacement or strain to the lumbosacral nerve roots.

2006 Young Investigator Award Winner: lumbosacral nerve root displacement and strain: part 1. A novel measurement technique during straight leg raise in unembalmed cadavers.

Study Design: A descriptive cadaveric study incorporating a novel nerve root marking technique.

Objectives: To describe the displacement and strain of the lumbosacral nerve roots in the lateral recess during straight leg raise (SLR) without disrupting the foraminal ligaments.

Summary Of Background Data: Previous studies document 2 to 8 mm of lumbosacral nerve root displacement during SLR.

Effect of sex hormones on neuromuscular control patterns during landing.

The purpose of the study was to investigate the effects of sex hormones across menstrual cycle phases on lower extremity neuromuscular control patterns during the landing phase of a drop jump. A repeated-measures design was utilized to examine sex hormone effects in 26 recreationally active eumenorrheic women. Varus/valgus knee angle and EMG activity from six lower extremity muscles were recorded during three drop jumps from a 50 cm platform in each phase of the menstrual cycle.