Active knee range of motion assessment in elite track and field athletes: normative values.

Background: flexibility is an important physical characteristic in athletes in terms of performance and injury prevention. Active Range Of Motion (AROM) was assessed in elite Greek track and field athletes.

Methods: prospective cohort study was carried out.

Blood phosphorus and magnesium levels in 130 elite track and field athletes.

Purpose: This study tested the clinical utility and relevance of serum phosphorus and magnesium as markers possibly useful to monitor training in athletes.

Methods: Phosphorus and magnesium serum concentrations of 130 elite track and field athletes (65 males and 65 females, age range 20-30 years) from the National Athletics Sports Medicine Center database in Thessaloniki, Greece were measured.

Results: Abnormal results were found in 61 (47%) athletes (32 men and 29 women).

Ultrasound as a primary evaluation tool of bone stress injuries in elite track and field athletes.

Background: Little is known about therapeutic ultrasound (TUS) to diagnose bone stress injuries.

Hypothesis: Therapeutic ultrasound is an accurate, cost-efficient alternative to other imaging methods for primary assessment of bone stress injuries.

Study Design: Cohort study (diagnosis); Level of evidence, 2.

Reinjury after acute posterior thigh muscle injuries in elite track and field athletes.

Background: Hamstring muscle strains often recur. The authors studied the effect of the grade of initial injury on the subsequent risk of reinjury.

Hypothesis: No difference in reinjury rate between acute low-grade (grades I and II) and high-grade (III and IV) hamstring muscle strains would be seen.