Biomechanical coordination and variability alters following repetitive movement fatigue in overhead athletes with painful shoulder.

Most sports and leisure activities involve repetitive movements in the upper limb, which are typically linked to pain and discomfort in the neck and shoulder area. Movement variability is generally expressed by changes in movement parameters from one movement to another and is a time-dependent feature of repetitive activities. The purpose of this study was to examine the effect of repeated movement-induced fatigue on biomechanical coordination and variability in athletes with and without chronic shoulder pain (CSP).

Electromyography of shoulder muscles in individuals without scapular dyskinesis during closed kinetic chain exercises on stable and unstable surfaces: a systematic review and meta-analysis.

Introduction: Unstable surfaces are commonly utilized to enhance the flexibility of the musculoskeletal system for achieving training or rehabilitation goals. However, their effects on shoulder muscle activation during various push-up (PU) exercises have not been thoroughly investigated. Therefore, the purpose of this study was to synthesize electromyography (EMG) data of shoulder muscles in individuals without scapular dyskinesis performing different PU exercises on both stable and unstable surfaces.

Effects of telerehabilitation-based respiratory and corrective exercises among the elderly with thoracic hyper-kyphosis: a clinical trial.

Background: Aging is associated with changes in the musculoskeletal system, including increased susceptibility to spine malalignments. Utilizing corrective exercises with a therapeutic emphasis can be beneficial in the elderly with thoracic spine hyperkyphosis.

Objective: This study aimed to investigate the effects of six weeks of telerehabilitation-based respiratory and corrective exercises on quality of life, disability, thoracic kyphosis, craniovertebral angle, shoulder angle, cranial angle, and chest expansion in the elderly with thoracic spine hyperkyphosis.

The effect of various therapeutic exercises on forward head posture, rounded shoulder, and hyperkyphosis among people with upper crossed syndrome: a systematic review and meta-analysis.

Objectives: This review study aimed to evaluate the impact of therapeutic exercises on Upper-Crossed Syndrome (UCS). The study utilized a systematic review and meta-analysis approach to investigate the effects of various therapeutic exercises on forward head posture, rounded shoulders, and hyperkyphosis associated with upper crossed syndrome.

Methods: The study identified relevant keywords for each independent and dependent variable and conducted a search in scientific databases, including PubMed, Web of Science, Scopus, and Google Scholar, without any time limitations until 12 August 2023.

Mechanical energy flow analysis in athletes with and without anterior cruciate ligament reconstruction during single-leg drop landing.

Techniques that reduce mechanical energy have been linked to lower chances of experiencing an Anterior Cruciate Ligament (ACL) injury. Although there is evidence that movement patterns are altered in athletes who have undergone Anterior Cruciate Ligament Reconstruction (ACLR), energy transfer mechanisms have not been examined. This study aimed to compare energy flow mechanisms during single-leg drop landing between athletes with and without history of ACLR.

Electromyography of scapular stabilizers in people without scapular dyskinesis during push-ups: a systematic review and meta-analysis.

Push-up (PU) is widely considered an effective exercise to stabilize the scapular, especially if performed on unstable surfaces. However, available studies cover a wide range of exercise variations and differ according to exercise prescription, muscle selection and study design. Therefore, findings are contradictory, and conclusions for a proper application of the PU are difficult to draw.

The effect of dual-task on jump landing kinematics and kinetics in female athletes with or without dynamic knee valgus.

It has been indicated that dual tasks may multiply the possibility of injuries due to divided attention. This study aimed to investigate the effect of dual-task on kinematics and kinetics of jump landing in female athletes with and without dynamic knee valgus. In this study, 32 recreational athletes between 18 and 30 years old were recruited and divided into with (n = 17) and without (n = 15) dynamic knee valgus groups.

Association between physical activity and body posture: a systematic review and meta-analysis.

Objective: To estimate the possible associations between posture and physical activity (PA).

Design: A systematic review and meta-analysis.

Data Sources: The search was conducted in seven databases (PubMed, Web of Science, SportDiscus, EMBASE, Scopus, Cochrane Library, and CINAHL) for studies published from inception to January 2023.

The effects of exercise training on knee repositioning sense in people with knee osteoarthritis: a systematic review and meta-analysis of clinical trials.

Objective: Osteoarthritis (OA) of the knee is one of the most common global joint disorders, especially in aging population, and is among leading health-related concerns of societies. Therefore, this systematic review and meta-analysis was done to investigate the results related to the effects of exercise interventions on knee repositioning sense in patients with knee OA.

Methods: An extensive search was independently performed in electronic databases including PubMed, MEDLINE, Web of Science, SCOPUS, and Google Scholar, to identify randomized clinical trials (RCTs) conducted on knee OA and to evaluate knee repositioning sense before and after different exercise interventions.

The sacroiliac dysfunction and pain is associated with history of lower extremity sport related injuries.

Background: The purpose of this study was to examine the association of sacroiliac joint (SIJ) dysfunction and pain with overuse and acute lower limb and pelvic girdle injuries of Iranian basketball players.

Methods: In this cross-sectional study, basketball-related injury data were collected during 2019-2020 from 204 basketball players of the Iranian league using the online Information Retrospective Injury Questionnaire. A researcher then performed ten clinical tests to assess SIJ dysfunction and pain (five tests for dysfunction and five tests for pain).

The effect of fatigue on electromechanical response times in basketball players with and without persistent low back pain.

Typically, athletes alter movement mechanics in the presence of back pain, but the effect of these changes on lower extremity injury risk is not well understood. This study aimed to compare the effect of fatigue on electromechanical response times during a choice reaction task in basketball players with and without persistent low back pain. Twenty-four male basketball players participated.

Establishing minimal clinically important difference for effectiveness of corrective exercises on craniovertebral and shoulder angles among students with forward head posture: a clinical trial study.

Background: Previous studies have addressed the effects of different exercises and modalities on forward head posture (FHP), but the minimal clinically important difference (MCID) of the effect of exercises on FHP remains unclear. Therefore, this study aimed to investigate the effects of selective corrective exercises (SCEs) on the craniovertebral angle (CVA) and shoulder angle (SA) in students with FHP and to establish MCID for these angles.

Methods: In this randomized clinical trial study, a total of 103 second-grade male students with FHP were enrolled.

Altered muscle strength and flexibility among a subgroup of women with chronic nonspecific low back pain: Cross-sectional case-control study.

Objective: To compare muscle strength and flexibility among a subgroup of women with extension-related chronic nonspecific low back pain (CNLBP) with healthy controls.

Methods: In this case-control study, 32 subjects with and without extension-related CNLBP were tested (n = 16 in each group). Gluteal, abdominal, paravertebral, and hamstring strength, along with hip flexor flexibility and hamstring flexibility were compared between groups.

Lower extremity kinematic coupling during single and double leg landing and gait in female junior athletes with dynamic knee valgus.

Background: Dynamic knee valgus (DKV) is a common lower extremity movement disorder among females. This study aimed to investigate kinematic couplings between lower extremity joints in female junior athletes with DKV during single and double-leg landing and gait.

Methods: Twenty-six physically active female junior athletes (10-14 years old) with DKV were recruited.

Sport-related injuries in Iranian basketball players: evidence from a retrospective epidemiologic study (2019-20).

Objectives: Basketball is a contact sport with complex movements that include jumps, turns, and changes in direction, which cause frequent musculoskeletal injuries in all regions of the body. Also, injury patterns among athletes, particularly basketball players, continue to evolve and change. The current retrospective epidemiologic study aimed to investigate the incidence, severity, and sports-related risk factors of injuries in Iranian basketball players from 2019 to 2020.

Altered ultrasonographic activity of abdominal muscles during breathing in males with and without nonspecific chronic low back pain.

Purpose: This study aimed to investigate the altered ultrasonographic activity of abdominal muscles during breathing in males with and without nonspecific chronic low back pain (NSCLBP).

Design: Cross-sectional study.

Methods: Twenty males with NSCLBP and 20 males without NSCLBP were recruited.

Single leg landing kinematics in volleyball athletes: A comparison between athletes with and without active extension low back pain.

Purpose: The purpose of this study was to compare kinematics of the lower extremity and lumbar spine during a single leg landing task between female volleyball athletes with and without persistent low back pain (LBP).

Methods: In this cross sectional study, 36 volunteer female volleyball athletes with (n = 18) and without (n = 18) LBP were recruited. Two specifically trained physical therapists selected only athletes with a specific movement-based subgroup of LBP for inclusion.

Effectiveness of Therapeutic Exercise on Forward Head Posture: A Systematic Review and Meta-analysis.

Objective: The purpose of this systematic review and meta-analysis was to summarize the results related to the effects of corrective exercises on postural variables in individuals with forward head posture (FHP).

Methods: A systematic review of the electronic literature through February 2017 was independently performed by 2 investigators. The electronic databases searched included PubMed, MEDLINE, Web of Science, ScienceDirect, Cochrane Central Register of Controlled Clinical Trials, Google Scholar, and Scopus.

Dry Needling in myofascial tracks in Non-Relaxing Pelvic Floor Dysfunction: A case study.

Objective: The aim of this case report is to describe the use of Dry Needling (DN) in myofascial tracks related to the pelvic floor (PF) in the management of a male with Non-Relaxing Pelvic Floor Dysfunction (NRPFD).

Clinical Features: A 42-year-old man, with a 20-year history of frequent urination, was referred to the physical therapy clinic by a urologist with diagnosis of NRPFD. The patient was suffering from a sense of incomplete evacuation and difficulty to start urination.

The Effect of Harmonic Technique vs End Range Loading Exercises on Pain and Disability in Patients With Non-Specific Chronic Low Back Pain: A Preliminary Study.

Objective: The purpose of this study was to compare the effects of end range loading (ERL) vs harmonic technique (HT) on patients with chronic low back pain (LBP).

Method: Fourteen volunteer patients with LBP were randomly assigned to 2 groups based on a blocked randomization method with 7 patients in the HT group and 7 patients in the ERL group. The patients received 10 sessions of treatment for 5 sessions per week.

The effect of strength training and combination technique on preserving the strength of plantar flexor muscles after a period of detraining.

Background: Strength training (ST) and/or electrical stimulation (ES) are two methods that have been prescribed for muscles improvement. The purpose of this study was to investigate the effects of six weeks of strength training and combined technique on maximal voluntary isometric contraction (MVIC) in plantar flexor muscles after 4 weeks of detraining.

Methods: Twenty-four healthy and nonathletic female students (age: 20-30 yrs) were randomly assigned to ST, combined training (CT), and control groups.

Low frequency repetitive transcranial magnetic stimulation to improve motor function and grip force of upper limbs of patients with hemiplegia.

Background: Stroke is the most common and debilitating neurological disorder among adults, and is a sudden onset of neurological signs caused by brain blood vessels impairments.

Objectives: Some new therapeutic methods focus on the use of magnetic stimulation to produce therapeutic effects by inducing the currents. The aim of this study is to determine the effects of rTMS plus routine rehabilitation on hand grip and wrist motor functions in patients with hemiplegia, and compare with pure routine rehabilitation programs.

The effect of exercise on urinary gamma-glutamyltransferase and protein levels in elite female karate athletes.

Purpose: Post exercise proteinuria and increased urinary Gamma-Glutamyl transferase (GGT) levels can be indicative of exercise-induced renal damage. The aim of this investigation is to study the effect of one session of intensive training on renal damage markers and compare their values to those 6 hours after training.

Methods: In this cross-sectional study with pre- and post-test design, 10 elite volunteer female athletes were selected and participated in one training session (2 hours).