Comparison of the effect of two different types of dry-needling techniques on subacromial impingement syndrome.

Introduction: Infraspinatus is one of the main muscles that is involved in the subacromial impingement syndrome. Dry needling and routine physical therapy can improve this syndrome. However, the dry needling technique is not well defined.

Relationship Between Hamstring Flexibility and Extensor Muscle Activity During a Trunk Flexion Task.

Objective: The purpose of this study was to investigate the relationship between hamstring flexibility and electromyography (EMG) muscle parameters in back and lower limb extensor muscles during a trunk flexion task.

Methods: Thirty healthy women aged 18 to 30 years with normal hip movement were recruited for this study. Hamstring muscle flexibility was measured with the 90-90 active straight leg raise test.

The effect of combined exercise therapy on knee proprioception, pain intensity and quality of life in patients with hypermobility syndrome: A randomized clinical trial.

Objective: Proprioception, the perception of limb movements and spatial orientation derived from body stimuli, plays a critical role in maintaining joint stability. This study aimed to investigate the effect of combined exercise therapy (closed kinetic chain exercises and proprioception exercises) on knee proprioception, pain intensity and quality of life in patients with hypermobility syndrome.

Design: Single-blind randomized clinical trial.

Clinical Evaluation of Scapular Positioning in Patients With Nonspecific Chronic Low Back Pain: A Case-Control Study.

Objective: The purpose of this study was to investigate the position of scapula in patients with nonspecific chronic low back pain.

Methods: A total of 17 participants with a history of nonspecific chronic low back pain and 17 healthy participants in the same age, sex, and weight range were enrolled in this case-control study. Lateral scapular slide test and Lennie test were used for clinical evaluation of scapular position in the frontal plane using a tape measure.

Is Abdominal Muscle Activity Different from Lumbar Muscle Activity during Four-Point Kneeling?

Background: Stabilization exercises can improve the performance of trunk and back muscles, which are effective in the prevention and treatment of low back pain. The four-point kneeling exercise is one of the most common types of stabilization exercises. This quasi-experimental study aimed to evaluate and compare the level of activation between abdominal and lumbar muscles in the different stages of the four-point kneeling exercise.

Effect of static stretching of muscles surrounding the knee on knee joint position sense.

Background: Muscle stretching is widely used in sport training and in rehabilitation. Considering the important contribution of joint position sense (JPS) to knee joint stability and function, it is legitimate to question if stretching might alter the knee JPS.

Objective: To evaluate if a stretch regimen consisting of three 30 s stretches alters the knee JPS.