Chronic low back pain and muscle activity in women during the sit-to-stand task: A cross-sectional study.

INTRODUCTION: The ability to stand up and sit down is important. Due to the large number of repetitions of these activities during the day and the demand that the task requires, it is cited as painful in the presence of low back pain (LBP). Individuals with LBP present alterations in muscle activation, however, this statement needs to be verified during everyday situations like the sit-to-stand task (STST). Therefore, the objective was to evaluate the muscle recruitment of women with and without LBP during the STST. METHODS: 35 women were evaluated, and allocated into the control group (CG n = 15) and the low back pain group (LBPG n = 20). The protocol consisted of clinical evaluation and the sit-to-stand task (STST). Electromyographic signals of the lumbar multifidus (LM), internal oblique (IO) and external oblique (EO), rectus abdominis (RA), and lumbar iliocostalis (LI) were carried out concomitantly with the STST. To verify normality, the Shapiro-Wilk test was used. For the characterization of the sample, the MANOVA test was chosen and the MANCOVA test was also chosen to compare the characteristics of the participants. RESULTS: Regarding the data analysis of the electromyographic signals, higher values were seen in the RA (moments 2 and 3) in the LBPG in the STST. CONCLUSION: The present study showed that women with chronic LBP present higher muscle activation of the rectus abdominis in the sit-to-stand task.

Effect of ischemic compressions versus extracorporeal shockwave therapy on myofascial trigger points: A protocol of a randomized controlled trial.

INTRODUCTION: The myofascial trigger points (MTrPs) are hyperirritable nodules present in a tight muscle band. Among the symptoms, pain is one of the most common, but the individuals may have other sensory, motor, and autonomic changes. Athletes can have MTrPs more intensely due to the high physical and emotional demand. There are a variety of treatments, but not all have strong or moderate evidence of their effectiveness. Thus, the aim of this study is to compare the effects of ischemic compression (IC) and extracorporeal shockwave therapy (ESWT) on pressure pain threshold immediately after the intervention and after 48h. METHODS: This randomized clinical trial was registered in the Brazilian Registry of Clinical Trial (RBR-6wryhb9) and was approved by the Research Ethics Committee (CAAE 46682921.9.0000.5406). Forty participants will be randomized to receive IC or ESWT treatment once in each MTrPs. The protocol will consist of evaluations before (T0), immediate after (T1), and after forty-eight hours (T2) of the intervention. The primary outcome will be pressure pain threshold and the secondary outcomes will be jump height, muscle strength, dorsiflexion range of motion (ROM), the correlation between MTrPs and temperature and participant's satisfaction. CONCLUSIONS: The IC and ESWT have been shown to be efficient in decreasing pain, however, the studies that compare the efficiency of these two treatments are limited in the literature, mainly in the muscles of the lower limbs, which are of great importance and are commonly injured. This study will provide evidence of the IC and ESWT in the triceps surae muscles, assisting in a better treatment for the individual with MTrPs.

Motor control exercises versus general exercises for greater trochanteric pain syndrome: A protocol of a randomized controlled trial.

INTRODUCTION: Greater trochanteric pain syndrome is an overarching term used to define pain and tenderness in the greater trochanteric region of the femur, which is more common in women. Abnormal control of lower limb movements and deficient neuromuscular parameters may lead to greater trochanteric pain syndrome; however, no studies have used neuromuscular training as a treatment strategy. Thus, this study aims to compare the effect of a protocol of general exercises versus a program of motor control training on pain at baseline and after treatment in women with greater trochanteric pain syndrome. METHODS: The study was approved by the Research Ethics Committee (CAAE: 87372318.1.0000.5406) and has been prospectively registered on the Brazilian Registry of Clinical Trials (RBR-37gw2x). Sixty participants will be randomized to receive motor control exercises or general exercises. The application will be performed twice a week for 8 weeks. The participants will be evaluated before the treatment (T0), after 8 weeks of intervention (T8) and after 60 weeks of intervention (T60). The primary outcome measures will be the hip pain intensity, and secondary outcomes will be muscle strength, kinesiophobia, global perceived effect, pain catastrophization, central sensitization and quality of life. CONCLUSIONS: Studies have suggested that greater trochanteric pain syndrome may be related to poor hip and pelvic control, however, no study has investigated an exercise protocol focused on increasing the strength of the abductor and extensor muscles of the hip associated with pelvic control training, especially in positions of unilateral support, such as gait. This study will help determine whether greater trochanteric pain syndrome is related to abnormal control of lower limb movements.

Pelvic floor muscle training and postural balance in elderly women: An exploratory single arm trial.

INTRODUCTION: To investigate the influence of a training of mobility, gait speed and postural balance of pelvic floor muscles (PFM). METHODS: A single-arm clinical trial study was approved and registered at the Brazilian Clinical Trials Registry (RBR-4rxhd4). Eighteen women over the age of 60 with pelvic floor dysfunction complaints were subjected to 10 sessions of functional electrical stimulation and digital palpation of PFM. Mobility and gait speed were evaluated by the Timed up and Go and the 10-m walk tests respectively. Standing balance was evaluated using a force plate. RESULTS: No significant differences were found in mobility, gait speed, and standing balance. PFM contraction worsened mobility, gait speed, and standing balance performance. CONCLUSIONS: The training protocol enhanced PFM strength and endurance, but the improved ability to recruit PFM did not positively affect balance, mobility, and gait speed.