Differences in spinal axial rotation angles during the lumbar-locked rotation test between hyper and normal thoracic rotation groups: A cross-sectional study.

Background: Trunk rotation is important in many sporting activities The thoracic spine has reciprocal relationships with the lumbar and pelvic spines, such that reduced flexibility in the lumbar or thoracic spine can lead to abnormal patterns of trunk movement and pain. However, few studies have investigated the relative trunk rotation mobilities of the thorax, lumbar, and pelvis.

Objective: To compare thoracic, lumbar, and pelvic rotation angles during the lumbar-locked rotation test between hyper and normal thoracic rotation groups.

The difference in the relationship of spinal sagittal alignment between individuals with flat lumbar and normal lordosis posture based on global and regional angles.

Background: According to previous studies, the relationship between lumbar lordosis and thoracic kyphosis or that between pelvic parameters and thoracic kyphosis have been inconsistent.

Objective: The purpose of this study was to investigate spinal sagittal alignment and its relationship to global and regional lumbar and thoracic angles, pelvic and sway angles, and C7-S1 distance measurements, followed by a detailed subgroup analysis using an inertial measurement unit system.

Methods: A total of 51 asymptomatic volunteers stood in a comfortable posture with inertial measurement units attached to the T1, T7, T12, L3, and S2 vertebrae.

Assessing the effects of sway-back posture on global and regional spinal sagittal angles using inertial measurement units.

Background: Sway-back posture in the sagittal profile is a commonly adopted poor standing posture. Although the terms, definitions, and adverse health problems of sway-back posture are widely used clinically, few studies have quantified sway-back posture.

Objective: To investigate spinal sagittal alignment in sway-back posture while standing based on global and regional angles using inertial measurement units (IMUs).

Effects of the abdominal drawing-in maneuver on hamstring rotational activity and pelvic stability in females.

Background: The medial hamstring (MH) and lateral hamstring (LH) can be selectively trained through tibial internal and external rotation during prone knee flexion. However, no study has identified how a combined tibial rotation and lumbo-pelvic stability strategy influences MH and LH muscle activities.

Objective: To investigate the combined effects of tibial rotation and the abdominal drawing-in maneuver (ADIM) on MH and LH muscle activities as well as pelvic rotation during prone knee flexion.

Differences in regional and global lumbar angle during slumped sitting and upright sitting among global three subgroups.

Objective: The purpose of this study was to investigate differences in regional lumbar lordosis (RLL) and global lumbar lordosis (GLL) angle during slumped sitting and upright sitting among three global subgroups.

Methods: A total of 48 young asymptomatic volunteers stood in a comfortable posture, sat upright, and sat in a slumped position for 5 seconds, with inertial measurement units attached to the T10, L3, and S2 vertebrae. According to standing measurement, the participants were categorized into flat-back (GLL < 20∘), normal lordosis (20∘⩽ GLL < 30∘), and hyper-lordosis (30∘⩽ GLL < 40∘) groups.

Effects of lower trunk movement in flat-back syndrome during stair climbing: A technical note.

Objective: This study investigated the differences in trunk sway during stair climbing between people with normal spinal alignment and people with flat-back syndrome.

Methods: Twelve male volunteers with flat-back syndrome (global angle < 20 degrees) and 12 male volunteers with normal spinal alignment (global angle between 20 degrees and 30 degrees) were enrolled. An accelerator was attached to the third lumbar spine and the sway of each participant's trunk was measured during stair climbing.

The effects of differences on sagittal kinematics and muscle coordination during step up and step down in patients with spinal stenosis.

Background And Objective: Lumbar spinal stenosis (LSS) is a common spinal disorder that causes patients to assume a forward-trunk posture. Spinal alignment affects swing limb angles and stance limb muscle activities. Therefore, we investigated the effects of differences in step up (SU) and step down (SD) tasks on the kinematics of the trunk and swing limb as well as stance limb muscle coordination in patients with LSS.

Inter-tester Reliability of Lumbar Lordosis Posture Classification Using a Novel Screening Device.

Objective: The purpose of this study was to investigate the inter-tester reliability of lumbar lordosis posture using a novel screening device.

Methods: A total of 33 healthy young male participants participated in the study. Two examiners measured the regional upper and lower lumbar lordosis angles of the participants in the standing position using a flexible ruler.

Lumbar Movement Dysfunction Based on Movement Control Impairment Classification System in Those Who Do and Do Not Develop Transient Low Back Pain During Prolonged Sitting.

Objective: Long-term sitting triggers movement-related disorders. We used a movement control impairment (MCI) system to investigate lumbar movement dysfunction in those who did and did not develop transient low back pain (LBP) during prolonged sitting.

Methods: Twelve patients who did and did not develop transient LBP during sitting for 2 hours were enrolled.

The Intertester Reliability of a Modified Movement System Impairment Classification System Used to Evaluate Individuals With Prolonged Sitting: A Preliminary Study.

Objective: Prolonged sitting while working at a computer leads to poor sitting postures, which can aggravate low back pain in many individuals. We examined the intertester reliability of using the modified musculoskeletal impairment schema for classifying participants sitting at computers for prolonged times.

Methods: Fifty participants were examined independently by each therapist using a test-retest design.

Reliability, standard error of measurement, and minimal detectable change of the star excursion balance test in children with cerebral palsy.

Objective: The present study aimed to estimate the reliability, standard error of measurement (SEM), and minimum detectable change (MDC) of the star excursion balance test (SEBT) in children with cerebral palsy (CP).

Methods: Eight children with CP (five boys and three girls, sixteen legs) participated in this study. Each child carried out the SEBT and was assessed by two examiners.

Inertial Measurement Unit-based Evaluation of Global and Regional Lumbar Spine and Pelvis Alignment in Standing Individuals With a Flat Lumbar Posture.

Objective: The purpose of this study was to investigate the global and regional lumbar spine and pelvis postural alignment in standing individuals with a flat lumbar posture using an inertial measurement unit (IMU) system.

Methods: A total of 80 symptomatic young volunteers (25 men and 55 women in their early 20s) were recruited at Inje University in Gimhae, South Korea for this study. Participants stood in a comfortable posture for 5 seconds with IMUs on the T10, L3, and S2 level.

The effect of sagittal hip angle on lumbar and hip coordination and pelvic posterior shift during forward bending.

Purpose: The purpose of this study was to investigate the effects of dynamic sagittal hip angle on lumbar and hip coordination and pelvic posterior shift during forward bending.

Methods: A total of 44 asymptomatic younger female volunteers were recruited to this study. Following measurement of trunk forward bending, participants were divided into three groups based on hip flexion angle: group 1, < 30°; group 2, ≥ 30° and < 50°; and group 3, ≥ 50°.

Immediate effect of a wearable foot drop stimulator to prevent foot drop on the gait ability of patients with hemiplegia after stroke.

The purpose of this study was to compare the effects of a foot drop stimulator (FDS) and ankle-foot orthosis (AFO) on the gait ability of patients with hemiplegia after stroke. This study recruited 10 patients with hemiplegia after stroke. All patients performed gait under two conditions (AFO and FDS gait).

Stepping over an obstacle in patients with lumbar spinal stenosis: Trunk and lower extremities of kinematic and muscle activation normalized by double limb support. A preliminary study.

Background: Patients with LSS tend to adopt a flexed lumbar posture and trunk position, particularly when stepping over an obstacle, as this activity alters the biomechanical demands placed on the trunk and lower extremities.

Objective: To investigate the effects of lumbar spinal stenosis (LSS) on patients' trunk and lower-extremity kinematics, and on activities involving the gluteus medius (GMed) and vastus lateralis (VL).

Methods: All participants (9 older adult patients with LSS and 11 control subjects) were required to negotiate an obstacle while walking.

Outcomes of the lower trapezius muscle activities during various narrow-base push-up exercises.

Background: In clinics, training of the lower trapezius muscle for the rehabilitation of the shoulder is often applied. The narrow-base push-up exercise is considered suitable training of the proximal shoulder complex, but the effect on the lower trapezius muscle has not yet been investigated.

Objective: The purpose of this study was to investigate the effect of push-up, push-up plus, and support surfaces on the lower trapezius muscle during the narrow-base push-up exercise.

The effects of a posterior superior iliac spine support device on upper trunk acceleration during gait in individuals with flat lumbar back posture.

Background: The orientation of the pelvis is of particular importance to the sagittal curve of the spine and has geometric relationships with the top of the spine and lumbar lordosis. Changes in spinal shape or disruptions of sagittal balance in the spine, such as a flattened lumbar spine, have significant negative effects.

Objective: The aim of this study was to investigate the effects of the posterior superior iliac spine support device (PSD) on upper trunk acceleration during gait in individuals with flat lumbar back posture.

Effects of manual therapy with functional electrical stimulation on scoliosis curve in children with cerebral palsy.

[Purpose] The purpose of this study was to investigate the effect of manual therapy with functional electrical stimulation (FES) on scoliosis curve and quality of life in children with cerebral palsy (CP). [Participants and Methods] Two children with CP performed 30 minutes of manual therapy and 30 minutes of FES three times a week for 3 months. The Cobb's angle and Pediatric Quality of Life Inventory (PedsQL) score were assessed before and after the intervention.

The effects of a reciprocal hip exercise on trunk flexion angle and sit-to-stand time in participants with flat backs.

[Purpose] This study developed a reciprocal hip exercise using Thera-Band for those with flat lumbar spines and observed changes in standing and movement angles during sit-to-stand. [Participants and Methods] Eleven females participated in this study. The participants performed the reciprocal hip exercise using Thera-Band.

Effects of lengthwise postural taping for lumbar spine rotation with flexion syndrome: a case report.

[Purpose] This study investigated the effects of lengthwise postural taping on a patient having lumbar spine rotation with flexion syndrome during prolonged periods of sitting. [Subject and Methods] The subject was a 22-year-old woman who had developed transient low back pain in the lumbo-pelvic region. The subject was asked to sit in a chair during 30 minutes of computer work under three conditions: no taping, extensive lumbo-pelvic region taping, and lengthwise lumbo-pelvic region taping.

Strategy on navigating obstacle in patients with lumbar spinal stenosis: Relationship among trunk and pelvic movement, swing toe clearance, and muscle coordination of the stance limb.

Background And Objective: Lumbar spinal stenosis (LSS) is a common spinal disorder that causes patients to assume a forward-trunk posture. Spinal alignment affects gait, muscle activity, and trunk-pelvis-limb coordination because the lumbar spine and muscles interact to allow load transfer between the lower back and pelvis during sagittal trunk movement. Therefore, we investigated the relationships among trunk and pelvic movement, swing toe clearance, and muscle coordination (isolated contraction ratios) of the stance limb during obstacle-crossing by patients with LSS.

Changes in trunk sway and impairment during sitting and standing in children with cerebral palsy.

Background: Poor postural control constitutes a major impairment in children with cerebral palsy (CP), compromising everyday activities such as sitting- and standing-position.

Purpose: In this study, we measured trunk sway during sitting- and standing-position. Additionally, we assessed trunk control ability using the trunk impairment scale (TIS), trunk control measurement scale (TCMS), and sitting assessment test for children with neuromotor dysfunction (SACND), in children with CP.

Effects of task velocity and center of mass acceleration during Y-Balance Test in elderly females with good and poor visual acuity.

[Purpose] To explore the effects of good binocular visual acuity (BVA) compared to poor BVA, reach distance, task velocity, and center of mass (COM) acceleration were evaluated in elderly females performing the Y-Balance Test (YBT) using a cross-sectional design. [Subjects and Methods] A total of 13 participants had BVA of ≥0.4 log of the minimum angle of resolution (logMAR) (poor BVA group), and the other 13 had BVA of ≤0.

Effects of live and video form action observation training on upper limb function in children with hemiparetic cerebral palsy.

Purpose: The purpose of this study was to investigate the effects of live and video form action observation training (AOT) on upper limb (UL) movement acceleration and function in children with cerebral palsy (CP).

Methods: In total, 12 children (7 boys, 5 girls) with CP participated in this study. The children were allocated randomly to live (experimental) and video (control) AOT groups.

Effects of visual cue and cognitive motor tasks on standing postural control following a chronic stroke.

[Purpose] The objective of the study was to examine the effects of visual cue and cognitive motor tasks on quiet standing posture center of pressure (COP) and the weight loads to the paretic and non-paretic legs in chronic stroke patients. [Subjects and Methods] Twenty chronic stroke patients were included in the study. COP total distance, sway velocity, and the weight loads to the paretic and non-paretic legs of the participants were measured while they performed a visual cue task, cognitive motor task, and dual task.