Assessment of sensorimotor function is useful for classification and treatment evaluation neck pain disorders. Several studies have investigated various aspects cervical motor functions. Most these involved slow or self-paced movements, while few fast movements. Moreover, the reliability assessment axial rotation has, to our knowledge, not been evaluated before. Cervical kinematics was assessed during head rotations in 118 women with chronic nonspecific (NS) compared 49 healthy controls...

Motion analysis using inertial measurement units (IMU) has emerged as an alternative to optical motion capture. However, the validity and reliability of upper limb measurements varies significantly between studies. The objective this study was determine how sensor placement affects kinematic output in assessment arm, shoulder, scapula. IMUs were placed proximally/distally on arms, medially/laterally scapula, a group eleven healthy participants, while performing nine different tasks. Linear...

Studies indicate that brain response during proprioceptive tasks predominates in the right hemisphere. A hemisphere lateralization for proprioception may help to explain findings right-limb dominant individuals perform position matching better with non-dominant left side. Evidence proprioception-related and side preference is, however, limited based mainly on studies of upper limbs. Establishing associated acuity lower limbs asymptomatic could be useful understanding influence neurological...

Upper limb coordination in persons post-stroke may be estimated by the commonly used Finger-to-Nose Test (FNT), which is also part of Fugl-Meyer Assessment. The total movement time (TMT) as a clinical outcome measure, while kinematic evaluation enables an objective quantification quality and motor performance. Our aims were to kinematically characterize FNT performance controls investigate construct validity test with varying levels impairment post-stroke.A three-dimensional motion capture...

The main aim of this study was to evaluate the quality goal-directed arm movements in 15 children with cerebral palsy (CP) following four weeks home-based training motion interactive video games. A further investigate applicability and characteristics kinematic parameters a virtual context comparison physical context.Kinematics kinetics were captured while performed directed towards both targets.The children's movement precision improved, their centre pressure paths decreased, as did...

The ability of fingers to rapidly rewarm following cold exposure is a possible indicator injury protection. We categorized the post-cooling hand-rewarming responses men before and after participation in 15 mo military training environment northern Sweden determine: 1) if initial rewarming category was related occurrence local during training; 2) affected subsequent responses.Immersion dominant hand 10 degrees C water for min performed pre-training on 77 men. Of those, 45 were available...

Abstract Background Kinematic analysis of the 3D reach-to-grasp drinking task is recommended in stroke rehabilitation research. The number trials required to reach performance stability, as an important aspect reliability, has not been investigated for this task. Thus, aims study were determine needed within-session stability and investigate trends over a set non-disabled people sample individuals with chronic stroke. In addition, between-sessions test–retest reliability persons was...

This paper presents an assessment tool for objective neck movement analysis of subjects suffering from chronic whiplash-associated disorders (WAD). Three-dimensional (3-D) motion data is collected by a commercially available system. Head rotation, defined in this as the rotation angle around instantaneous helical axis (IHA), used extracting number variables (e.g., angular velocity and range, symmetry motion). Statistically significant differences were found between controls with WAD variables.

Reduced dynamic knee stability, often evaluated with one‐leg hops ( OLH s), is reported after anterior cruciate ligament ACL ) injury. This may lead to long‐standing altered movement patterns, which are less investigated. 3D kinematics during were explored in 70 persons 23 ± 2 years injury; 33 treated physiotherapy combination reconstruction R and 37 alone PT ). Comparisons made matched controls. We analyzed (a) maximal joint angles range of motion (flexion, abduction, rotation); (b)...

For all segments and tests, a modified Kalman filter quasi-static sensor fusion algorithm were equally accurate (precision accuracy ∼2–3°) compared to normalized least mean squares filtering, recursive least-squares filtering standard filtering. The aims to: (1) compare adaptive techniques used for (2) evaluate the precision chosen filter. Motion sensors (based on inertial measurement units) are limited by accumulative integration errors arising from bias. This drift can partly be handled...

Athletes exposed to rapid maneuvers need a high level of dynamic knee stability and robustness, while also controlling whole body movement, decrease the risk non‐contact injury. The effects high‐level athletic training on such measures movement control have not, however, been thoroughly evaluated. This study investigated whether elite athletes (who regularly perform knee‐specific neuromuscular training) show greater robustness and/or different strategies than non‐athletic controls, in...

Knee proprioception deficits and neuroplasticity have been indicated following injury to the anterior cruciate ligament (ACL). Evidence is, however, scarce regarding brain response knee tasks impact of ACL injury. This study aimed identify regions associated with proprioceptive sense joint position at whether related individuals reconstruction differed from that asymptomatic controls. Twenty-one persons unilateral (mean 23 months post-surgery) either right ( n = 10) or left 11) knee, as well...

A hip prosthesis design with larger femoral head size may improve functional outcomes compared to the conventional total arthroplasty (THA) design. Our aim was compare range of motion (RoM) in lower body joints during squats, gait and stair walking using a wearable movement analysis system based on inertial measurement units (IMUs) three age-matched male groups: 6 males THA (THAC), 9 large (LFH) design, 8 hip- knee-asymptomatic controls (CTRL). We hypothesized that LFH would allow greater...

Background: Atypical knee joint biomechanics after anterior cruciate ligament reconstruction (ACLR) are common. It is, however, unclear whether robustness (ability to tolerate perturbation and maintain configuration) whole body movement strategies compromised ACLR. Purpose: To investigate landing control ACLR with regard dynamic during sports-mimicking side hops, evaluate functional performance of hop tests strength. Study Design: Controlled laboratory study. Methods: An 8-camera motion...