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The purpose of this study was to compare pulmonary function and respiratory muscle strength and endurance in individuals with thoracic outlet syndrome (TOS) and healthy participants.

Sixty-two individuals with TOS (mean age 30.81 ± 10.69 years; 10 male, 52 female) and 47 healthy individuals (mean age 30.64 ± 9.16 years; 14 male, 33 female) participated in this study. Pulmonary function testing was performed using a spirometer. Respiratory muscle strength (maximal inspiratory pressure [MIP] and maximal expiratory pressure [MEP]) were measured using a mouth pressure device. Respiratory muscle endurance was tested at 35% MIP and measured as the time in seconds from the start of the test to voluntary exhaustion.

Age distribution and physical characteristics were similar between the groups (P > .05). All pulmonary function parameters except for peak expiratory flow rate were similar in patients with TOS and healthy controls (P > .05). Patients with TOS had significantly lower peak expiratory flow rate, MIP, MIP%, MEP, MEP%, and respiratory muscle endurance compared with controls (P < .05). Forty-six patients with TOS (74.2%) had MIP values below the lower limit of the 95% CI of the control group (97.05-113.88 cmH

O), and 53 patients with TOS (85.2%) had MEP values below the lower limit of the 95% CI of the control group (124.74-146.49 cmH

O).

Expiratory flow rate and respiratory muscle strength and endurance may be adversely affected in TOS. Trunk muscles perform both postural and breathing functions. Therefore, disruption in one function may negatively affect the other.

Expiratory flow rate and respiratory muscle strength and endurance may be adversely affected in TOS. Trunk muscles perform both postural and breathing functions. Therefore, disruption in one function may negatively affect the other.

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.

Twelve patients who did and did not develop transient LBP during sitting for 2 hours were enrolled. We tested the movement control abilities of the 2 groups using 6 MCI tests (12 test items).

The mean MCI test score in the transient LBP developer group was significantly higher than that in the LBP non-developer group (P = .03). Lumbar flexion movement control as the backward rocking test was significantly more common in the transient LBP developer than in the LBP non-developer group (P < .027). Pelvic shifting and asymmetry during side-bending of the trunk were evident in both groups (all P > .05). However, pelvic shifting during side-bending of the trunk was evident only in the LBP group (33%; P = .093).

The group exhibiting transient LBP had higher positive MCI test scores and exhibited more asymmetry than the other group. Even the non-LBP group exhibited poor lumbar flexion and rotation. Therefore, subjects with subclinical dysfunction caused by prolonged sitting may require homogenous subgroups classification for the early detection of mechanical risk factors and health and functional interventions.

The group exhibiting transient LBP had higher positive MCI test scores and exhibited more asymmetry than the other group. Even the non-LBP group exhibited poor lumbar flexion and rotation. Therefore, subjects with subclinical dysfunction caused by prolonged sitting may require homogenous subgroups classification for the early detection of mechanical risk factors and health and functional interventions.

To compare the biomechanical effect of lumbar fixed-point oblique pulling manipulation and traditional oblique pulling manipulation in the treatment of protrusion of lumbar intervertebral disk, and investigate the influence of disk degeneration on the 2 manipulations.

Three finite element models including 1 normal model, 1 mild degeneration, and 1 moderate degeneration model of L3-S1 were developed to simulate 2 oblique pulling manipulations. The disk protrusion was assumed to be in the left central and subarticular zone of the L4-L5 disk, and manipulations were carried out on the right. A 15-Nm right axial rotation moment and 150-N compressive loading were imposed on the upper endplate of L3 to simulate a traditional oblique pulling manipulation. learn more To simulate lumbar fixed-point oblique pulling manipulation, in addition to a 15-Nm moment and 150-N compressive loading imposed on the L3 upper endplate, a 50-N force was imposed on the right lateral area of the L4 spinous process in a left front direction. The protrusion of the lumbar intervertebral disk using finite element models.

Kinesiophobia is a clinically relevant factor in the management of chronic musculoskeletal pain. The aim of this study was to explore the cross-sectional association between kinesiophobia and both pain intensity and disability among individuals with chronic shoulder pain.

A total of 65 participants with chronic unilateral subacromial shoulder pain were recruited from 3 primary care centers. The Shoulder Pain and Disability Index assessed pain intensity and disability. The Tampa Scale for Kinesiophobia short form assessed the presence of kinesiophobia. A linear multivariable regression analysis evaluated the potential association between kinesiophobia and range of movement free of pain with pain intensity and disability. The analysis was adjusted for sex and age.

In the linear multivariable regression analysis, only greater kinesiophobia (standardized β = 0.35, P < .01) and sex (standardized β = -0.29, P < .01) contributed to explain 19% of the variance in shoulder pain and disability scores.

This cross-sectional study provides preliminary evidence about the association between kinesiophobia and pain intensity and disability among individuals with chronic shoulder pain. However, our findings only contributed to explain 19% of the variance in shoulder pain and disability scores.

This cross-sectional study provides preliminary evidence about the association between kinesiophobia and pain intensity and disability among individuals with chronic shoulder pain. However, our findings only contributed to explain 19% of the variance in shoulder pain and disability scores.