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Objectives: This study investigates the chest wall motions and estimates respiratory volumes in a patient with scoliosis compared to a healthy person using the optoelectronic plethysmography method in a sitting position. Methods: In this research, a scoliosis patient and a healthy individual comprised two subjects. Each person's upper, middle, and lower chest movement in a seated position was measured using optoelectronic plethysmography. Results: The changes in respiratory volumes of the middle and lower parts of the chest in patients with scoliosis are more than those of a healthy person during quiet breathing. Moreover, the changes in the upper, middle, and lower parts of the chest in the healthy person are also more than those of the subject with scoliosis during deep breathing. Discussion: Optoelectronic plethysmography is a noninvasive method to evaluate chest wall movements, respiratory system function, and volumes with fewer limitations than other methods of evaluating respiratory function. [ABSTRACT FROM AUTHOR]

Diastasis recti abdominis (DRA) affects a significant number of women in the postpartum period. This study compared the effectiveness of suspension training system (STS) with that of isometric-isotonic (ISoM-ISoT) exercises in the treatment of DRA and its secondary complications. Thirty-six women with DRA participated in this study. They were divided into the three groups of STS, ISoM-ISoT, and control. Inter-recti distance (IRD), proprioception, lumbopelvic control, postural stability, low back pain, and disability were assessed using a digital caliper, a goniometer, a lateral step-down test, a Biodex balance system, a visual analogue scale (VAS), and the Oswestry Disability Index (ODI), respectively. Two intervention groups underwent training for 8-week and the control group resumed their normal lives. Positive effects were observed in the STS and ISoM-ISoT groups compared with the control group in: IRD (P =.001); lumbopelvic proprioception (P =.001); lumbopelvic control (P =.001); overall static balance (P =.010); overall dynamic balance (P =.012); low back pain (P =.001); and disability (P =.001). However, there was no significant difference between the training groups in: IRD (P =.12, MD = −2.76); lumbopelvic proprioception (P =.48, MD = −0.50); lumbopelvic control (P =.14, MD = 1.53); static balance (P =.62, MD = 0.07); dynamic balance (P =.27, MD = 0.33); pain (P =.25, MD = −0.52); and disability (P =.48, MD = −1.74). The results of the minimal clinically important difference (MCID) and minimal detectable change (MDC) suggested that the STS exercises outperformed ISoM-ISoT training regarding IRD, pain, disability, and proprioception, whereas ISoM-ISoT training had a better effect in lumbopelvic control and balance. The results of our study showed that the STS had a positive effect on women with DRA and like the ISoM-ISoT exercises can be used to treat this dysfunction. [ABSTRACT FROM AUTHOR]

Purpose: Altered movement patterns and spine instability are crucial factors in the etiology of chronic non-specific low back pain (CNSLBP). The faulty recruitment pattern of core muscles causes poor support and increased loading on the lumbar spine, ultimately leading to postural instability. This study aims to examine the effect of core stability exercises (CSE) combined with abdominal hollowing (AH) on postural balance in patients with CNSLBP. Methods: The present study is a double-blind clinical trial. Thirty women with CNSLBP were recruited for the clinical trial. Patients were randomly assigned to experimental and control groups (15 patients in each group). The experimental group followed CSE with AH for 8 weeks. The control group received no intervention. Primary outcomes included pain (10 cm visual analogue scale), disability (Oswestry questionnaire), and proprioception (goniometer). Secondary outcomes included static and dynamic balance (biodex balance system). Analysis of covariance (ANCOVA) was used to compare the results and confidence intervals between groups. Results: The experimental group compared to the control group with a high effect size had a significant difference in reducing pain (P=0.021, ηp²=0.183), disability (P=0.007, ηp²=0.237), and postural reconstruction error (P=0.000, ηp²=0.566). Also, the experimental group compared to the control group with a high effect size had a significant difference in the improvement of static (P=0.008, ηp²=0.367) and dynamic balance (P=0.008, ηp²=0.757). Conclusion: The CSE combination with AH affects three active, passive, and nervous systems. It seems that the CSE combination with AH can modify the faulty movement control in local muscles, proprioception restoration, and subsequently lead to postural stability. [ABSTRACT FROM AUTHOR]