title: Secondary elements of blood pH variation can influence the effort effectiveness based on adaptive changes within a group of elite athletes.
abstract: OBJECTIVE
  pH is the direct indicator of the body reaction following the activities performed. Establishing precise correlations between pH and blood biochemical parameters might support the balancing of values during periods of marked physical activity.
  
  
  METHODS
  We conducted a case study in a group of elite rowers. Twelve athletes were included in the study. Monitoring was carried out by collecting biological samples several times a day: in the morning, 80 minutes pre-workout, 12 hours after the last physical effort performed, at two different times, 10 days apart. Determinations were aimed at adapting the reported biochemical parameters depending on the effort performed. The following parameters were monitored: pH, HCO3, pCO2, pO2, BE, SBE, SBC, Ca++, Mg++, LDH, GPT, T-Pro, and Alb.
  
  
  RESULTS
  The mean value of pH found in athletes was 7.41±0.024. The value obtained was significantly correlated to biochemical parameters such as BE (2.32±1.79), SBC (1.67±1.45), SBE (2.70±1.75). However, bicarbonate (HCO3) was statistically significantly related with SBE, SBC, SBE, and pO2, but did not present a strong association with the pH value (p=0.094). However, values such as Alb, Ca++, LDH, BE, SBC are related to pH value as a result of variations in the data submitted.
  
  
  CONCLUSIONS
  The processed data evidence the fact that blood pH, in this case, is significantly influenced by a number of indices that correlate energy system activity, individual adaptation to effort, and the recovery process. The parameters under investigation (SBE, SBC, SBE, CPK, LDH) are associated with pH changes that could confirm the recovery efficiency of the athlete, along with a possible metabolic acidosis/alkalosis.
authors.affiliation: Community Nutrition and Food Hygiene Department, University of Medicine and Pharmacy Tîrgu Mureş, Romania; Romanian Rowing Federation, University of Medicine and Pharmacy Tîrgu Mureş, Romania.
authors.forename: Ştefan Adrian
authors.initials: ŞA
authors.lastname: Martin
authors.affiliation: Romanian Olympic Sports Committee, University of Medicine and Pharmacy Tîrgu Mureş, Romania.
authors.forename: Valeriu
authors.initials: V
authors.lastname: Tomescu
authors.affiliation: Epidemiology Department, University of Medicine and Pharmacy Tîrgu Mureş, Romania.
authors.forename: Septimiu
authors.initials: S
authors.lastname: Voidăzan
keywords: adaptation; alkalosis; athletes; balance; pH