Iliotibial band tightness and internal rotation of the tibia in the stance phase of running associated with patella instability.

Management of patellar instability is still a clinical challenge, especially in pediatric and adolescent athletes. The purpose of the study was to check the association between the positive apprehension test (which is a sign of patellar instability) and positive Ober's test [which is a sign of a tight iliotibial band (ITB)] and the lower degree of internal rotation of the tibia in young athletes determined by inertial sensors. The participants of this observational case-control study were 56 young athletes aged 10-15.

Association between femoroacetabular impingement syndrome and limited lateral hip rotation in young athletes: A case-control study.

Purpose: Hip pain is very common in athletes. One of the main disorders causing hip pain is femoroacetabular impingement syndrome. This study aimed to identify a new etiological risk factor for femoroacetabular impingement in the hip.

Increased number of electrocardiogram findings requiring additional cardiac examination in young athletes during the coronavirus disease 2019 pandemic: a case series.

We aimed to compare the results of electrocardiogram (ECG) examinations in young athletes from 2017 to 2020, which includes a period during the coronavirus disease 2019 (COVID-19) pandemic, with special attention to T-wave inversion that might be a sign of myocarditis. This was a retrospective observational study. We reviewed data of ECG examinations among 640 young athletes aged 10 to 14 years (160 in each year from 2017-2020).

Risk factors associated with subacromial pain in young athletes: A case control study.

Background: Subacromial pain (SAP) is a common complaint of young athletes, independently of the sport engaged. The prevalence of SAP in some sports is up to 50%.

Objective: The study was aimed to investigate some new factors possibly associated to subacromial pain in young athletes.

Association between abductor hallucis abductory force and navicular drop index, a predictive correlational study.

The role of intrinsic muscles of the foot in the medial longitudinal arch mechanism was investigated in several recent studies. It is determined that the abductor hallucis muscle (AHM) has an important role in dynamic support of the arch. Objective of our preliminary study was to establish a relationship between the navicular drop index (NDI) and the AHM abduction force.

Association Among Dyskinesia of the Lumbar Spine Segment, Inclination Angle of the Lumbosacral Spine, and Low Back Pain in Young Athletes: A Predictive Correlational Study.

Objective: This predictive correlational study aimed to investigate the association among low back pain (LBP), dyskinesia of the lumbosacral spine segment (determined by inertial sensors), and inclination angles: the inclination angle of the lumbosacral spine (alpha), the inclination angle of the thoracolumbar spine (beta), and the inclination angle of the upper thoracic section (gamma). Our hypothesis was that young athletes with LBP had a particular dyskinesia: nonphysiological movements of the lumbosacral segment of the spine.

Methods: The study group consisted of 108 young athletes aged 10 to 16 years (male/female 44%/56%; 12.

Association between adolescent idiopathic scoliosis and sacroiliac joint dysfunction in young athletes: A case control study.

Adolescent idiopathic scoliosis (AIS) is the most common form of scoliosis, a 3-dimensional deviation in the axis of the spine. Etiology of AIS is unclear and the general belief is that AIS is multifactorial disorder possibly caused by different factors. It would be worthwhile to reveal new factors associated with AIS.

Competitive Endurance Activities of Middle-aged Athletes as a Risk Factor for Atrial Fibrillation.

Atrial fibrillation (AF) is the most common cardiac arrhythmia in athletes. Epidemiological studies have documented a greater prevalence of AF in athletes engaged in long-term endurance sports. Several mechanisms were proposed to underlie the association between exercise and AF, but the exact pathophysiology remains unclear.

Limited ankle dorsiflexion: a predisposing factor to Morbus Osgood Schlatter?

Quadriceps femoris muscle contracts eccentrically during the stance phase of running till the beginning of propulsion when the knee reaches the highest level of flexion. Limited dorsiflexion in the ankle joint is associated with a compensatory increased knee flexion, tibial inversion, and foot pronation during the stance phase of running. Theoretically, these compensatory mechanisms might cause increased stress on the quadriceps femoris muscle attachment to the tuberositas tibia.