Isokinetic knee muscular strength is associated with hematologic variables in female modern dancers

Abstract

It is important to expose the risk factor in injury in the context of the health and the careers of dancers. Female are at greater risk of developing anemia than men, yet scarce data exist on anemia associated outcomes in female dancers. The aim of the present study was to investigate the relationships between bilateral isokinetic knee extensor and flexor muscles strength, and biochemical hematologic parameters in female modern dancers. Concentric isokinetic peak torque [(PT)-N.m], peak torque % body weight [(PT%BW)-N.m.kg -1 ], average peak torque [(AVGPT)-N.m] and total work [(TW)-J)] of the knee extensor and flexor muscles were measured at a velocity of 60º, 180º and 300ºs -1 . To determine hematological parameters [red blood cell count (RBC), hematocrit (Hct), and Hb] were determined. The dancers of LHG and HHG had significant differences (p ≤ 0.05) for hematological parameters. HHG dancers' strength production in extensors muscles of PT, TW and AVGPT in non-dominant left leg (p ≤ 0.05) were significantly higher than LHG dancers. There were significant (p ≤ 0.05) negative correlations between TW (300ºs -1 ) of left leg extensor muscles and RBC, Hct and Hb variables. Isokinetic knee muscular strength is associated with hematologic variables in female modern dancers. The current study provides evidence that the low-level hematologic parameters has decreased performance on torque production of extensors knee muscles in non-dominant leg during

Priority scientific areas in sports dances research: the analysis of the scientific resources of Web of Science Core Collection

“…Sufficient development of basic physical qualities provides an increase in the level of skill and prevention of sports injuries [8,9,10]. To determine risk factors for injury in sports dances is essential for the health and career of dancers [11,12,13]. Determining injury risk predictors will allow organizing training in such a way as to minimize their probability.…”

“…Determining injury risk predictors will allow organizing training in such a way as to minimize their probability. A promising way to reduce injuries is to study the correlation between the biomechanical and physiological parameters of athletes [11].…”