Cross-sectional laboratory study.To compare peak lower-limb, pelvis, and trunk kinematics interjoint intersegmental coordination in women with strong weak hip muscle performance.Persons lower extremity musculoskeletal disorders often demonstrate a combination of musculature altered during weight-bearing dynamic tasks. However, the association between strength independent pathology or pain is unclear.Peak extensor abductor torques were measured 150 healthy young women. Of these, 10 fit...

Study Design Controlled laboratory study, with a case-control, cross-sectional design. Background Individuals low back pain have impaired activation of the multifidus during postural adjustments and increased activity erector spinae musculature walking. However, it is unclear whether these alterations in muscle are evident locomotion individuals history when they between symptomatic episodes. Objectives To compare paraspinal young, healthy young walking turns. Methods Fourteen asymptomatic...

Low back, pelvic, and lower extremity pain are common during after pregnancy. Understanding differences in mechanics between pregnant non-pregnant females is a first step toward identifying potential pathological mechanisms. The primary purpose of this study was to compare joint kinetics muscle activation gait pregnancy nulliparous females.

Perinatal running participation has increased recently; however, pregnancy related symptoms can limit activity. biomechanics could inform interventions to help perinatal individuals maintain an active lifestyle. Are biomaechanics and muscle activation different compared nulligravida females? Sixteen pregnant participants completed self-selected velocity during second trimester (2 T), third (3 postpartum (PP) 16 matched controls these procedures once in this case control study. Kinematic,...

Variability, or how a task changes across trials, may reveal differences between athletes of differing skill levels. The purpose this study was to examine trunk and lower extremity (LE) single joint kinematic variability intersegmental coordination in dancers nondancers during bipedal vertical dance jumps (sautés). Twenty healthy females, 10 with no formal training professional dancers, performed 20 consecutive sautés. Single assessed using mean standard deviation angular displacement, the...

During anticipated postural perturbations induced by limb movement, the central nervous system generates anticipatory adjustments (APAs) in trunk and hip musculature to minimize disturbances equilibrium. Age-related changes functional organization of may contribute APAs healthy older adults. Here we examined if altered trunk/hip adults are accompanied representation these muscles motor cortex. Twelve adults, 5 with a history falls 7 nonfallers, were compared 13 young assessed during...

Study Design Controlled laboratory study. Background Joint mobilization and manipulation decrease pain improve patient function. Yet, the processes underlying these changes are not well understood. Measures of corticospinal excitability provide insight into potential mechanisms mediated by central nervous system. Objectives To investigate differential effects joint at talocrural on in individuals with resolved symptoms following ankle sprain. Methods Twenty-seven participants a history...

Motor control dysfunction persisting during symptom remission in persons with recurrent low back pain (LBP) may contribute to the recurrence of pain.To investigate trunk from LBP and back-healthy controls using a dynamic, internally driven balance task. No differences task performance were expected between groups, but it was hypothesized that would exhibit greater coupling, consistent trunk-stiffening strategy.In this cross-sectional controlled laboratory study, without (n = 19 per group)...

Altered postural control in the trunk/hip musculature is a characteristic of multiple neurological and musculoskeletal conditions. Previously it was not possible to determine if altered cortical subcortical sensorimotor brain activation underlies impairments control. This study used novel fMRI-compatible paradigm identify associated with trunk hip musculature. BOLD fMRI imaging conducted as participants performed two versions lower limb task involving lifting left leg touch foot target. For...

Effective compliance with physiotherapy exercises is only possible if patients remember the accurately. The purpose of this study was to assess how well elderly in-patients remembered simple exercises, by comparing ability accurately reproduce a set in group that had received written exercise sheet, not. also aimed investigate relationship between memory for and cognition. Sixty-four an acute hospital were taught 3 exercises. Half subjects randomised receive sheets reinforce teaching (Group...

Objectives To (1) quantify relationships between low back pain (LBP) symptoms, physical activity, and psychosocial characteristics in young adults (2) identify subclasses of with distinct trajectories. Design Prospective cohort study 12-month follow-up. Methods One hundred twenty (mean ± SD age, 20.8 2.6 years; 99 women) participated. Participants completed a baseline survey that measured anxiety, depression, fear avoidance, quality life, history impact any LBP. follow-up surveys every 3...

When perceived as threatening, social interactions have been shown to trigger the sympathoadrenal medullary system well hypothalamic-pituitary-adrenal axis resulting in a physiologic stress response. The allostatic load placed on human health and physiology context of acute chronic can profound consequences. purpose this study was develop protocol for lab-based stimulus using social-evaluative threat. While several valid, stress-stimulating protocols exist, we sought one that triggered...

In this study, we investigated trunk coordination during rate-controlled bipedal vertical dance jumps. The aims of the study were to investigate pattern and magnitude variability within jump phases relative phase-defining events jump. Lumbar thoracic kinematics collected from seven dancers a series jumps at 95 beats per minute. vector coding technique was used quantify coordination. Coordination predominantly anti-phase propulsion landing. Mean peaked just before landing phase transition...

Chronic low back pain is a common musculoskeletal healthcare presentation with an expense of over $100 billion annually. The clinical effect myofascial cupping on and function not clear, especially when different techniques are combined. purpose this case series was to explore changes in following local static distal dynamic dry treatments patients chronic pain.

Background The purpose of this study was to compare gait kinematics, kinetics, and muscle activation between pregnant females with high low scores for back and/or pelvic girdle pain during after pregnancy. Methods Twenty participants tested second trimester, third again post-partum. At each session, motion capture, force plates, surface electromyography data were captured self-selected velocity over-ground walking. Participants completed the Quebec Back Pain Disability Scale (QBPDS) assigned...

Biomechanical analysis of locomotion after total sacrectomy in a single patient case.To describe the biomechanics successful and spinopelvic reconstruction.Total is complex surgery that has significant consequences for mobility due to loss lower lumbar sacral innervation extremities, anatomic dissociation spine from pelvis. There no existing literature quantifying locomotor sacrectomy.A 22-year-old female with osteosarcoma underwent an en bloc L3 pelvis instrumented fusion. Neuromuscular...