Background The aim of this survey was to determine the effects an aerobic physical training program six months duration on serum and urinary concentrations essential trace elements among middle distance runners untrained, non-sportsmen participants.Methods 24 well-trained, middle-distance (1500 5000 m), male (AG) were recruited at beginning their season 26 untrained males formed control group (CG). All participants from same region Spain, all them had been living in area for least two years....

Fatty acids (FAs) are an essential component of the erythrocyte membrane, and nutrition physical exercise two variables that affect their structure function. The aim this study was to evaluate profile in a group high-level endurance runners, as well changes different FAs, throughout sports season relation training performed. A total 21 male runners (23 ± 4 years; height: 1.76 0.05) were evaluated at four times season. athletes had least 5 years previous experience participated national...

The aim of this study was to determine the possible correlations between essential and toxic trace elements plasma with several anthropometric body composition parameters performance in endurance runners. Sixty-five high-level middle long-distance runners (21 ± 3 years; 1.77 0.05 m; 64.97 7.36 kg; VO2 max. 67.55 4.11 mL/min/kg) participated present study. Abdominal, subscapular, iliac crest, triceps, front thigh medial calf skinfold thicknesses an incremental test until exhaustion were...

Fatty acids (FAs) are the major structural component of erythrocyte membranes. Diet and physical exercise directly influence their incorporation function. Endurance runners engage in high volumes weekly aerobic training, alternating between low-intensity high-intensity sessions. The aim study was to assess compare FA profile a group high-level male endurance (EG) with control non-athlete subjects (CG). This observational conducted on 85 subjects, 63 (23 ± 3 years; height: 1.76 0.05) 22 who...

The main objective of this study was to observe any changes and possible adaptations produced in MDA antioxidants vitamins on plasma erythrocytes endurance male athletes among an athletic season (12 months).Twenty three long middle distance participated study. Basal antioxidant were measured at four moments along the (0, 3, 6 9 months). Fatty acid concentrations obtained determine lipid peroxidation indexes.In plasma, vitamin C suffered significant decreases 3 months compared with begin...

Several essential trace minerals play an important role in the endocrine system; however, toxic have a disruptive effect. The aim of this research was to determine basal concentrations and possible correlations between plasma several hormones runners. Sixty high-level male endurance runners (21 ± 3 years; 1.77 0.05 m; 64.97 7.36 kg) participated present study. Plasma were analyzed using enzyme-linked immunosorbent assay (ELISA) with inductively coupled mass spectrometry (ICP-MS)....

The aim of the present study was to evaluate basal concentrations malondialdehyde (MDA) nonenzymatic antioxidants, such as ascorbic acid, α-tocopherol, and retinol in plasma or erythrocytes, 16 trace minerals endurance athletes from Extremadura (Spain). In addition, we aimed assess possible relationships between some parameters related cellular oxidative stress with minerals. Sixty-two national long-distance men participated this study. antioxidant activity were analyzed through high...

The aim of this study was to determine the possible changes in plasma several hormones such as Luteinizing Hormone, Testosterone, Cortisol and Insulin endurance runners during sports season. Twenty-one high-level male (22 ± 3.2 years, 1.77 0.05 m) participated study. Basal were measured at four moments season (initial, 3, 6 9 months), analyzed using ELISA (enzyme-linked immunosorbent assay). Testosterone Hormone (LH) suffered very significant decreases (

Several anthropometric and performance parameters related to aerobic metabolism are associated with in endurance runners modified according the training performed. The objective of this study was investigate ergospirometric body composition changes during a sports season relation their training. Twenty highly trained men performed an incremental test until exhaustion (initial, at 3, 6, 9 months) on treadmill determine maximal oxygen consumption (VO2 max), second ventilatory threshold (VT2),...

Information about levels of many trace elements in biological tissues is scarce. Toxic are pervasive the human environment and known to accumulate body over lifetime. Studies athletes during training periods compared non-training control subjects, indicate increased loses minerals by sweat urine. PURPOSE: The aim this study was compare level toxic elements: lead (Pb), cadmium (Cd), beryllium (Be), tellurium (Te) tungsten (W) urine samples between age-matched sedentary subjects living same...

Background: it is well known that moderate or vigorous physical exercise produces an increase in free radicals. Aim: the aims of this study were to observe changes malondialdehyde and antioxidant vitamins after a maximum incremental test, relate vitamin values performance parameters. Methods: eighty-four male athletes participated study. Participants performed test until exhaustion on treadmill. Malondialdehyde plasma erythrocytes determined before test. Results: plasma, there was decrease...