The response of blood buffering capacity and H+ regulation to three types of recovery during repeated high-intensity endurance training

Background/aim: Many studies were shown the effect of type's recovery on performance. Active recovery has been reported by some to promote greater exercise capacity, while others have not confirmed these results. The aim of this study was to determine the effect of three types of recovery during repeated high-intensity endurance training on blood buffering capacity and H+ regulation. Design/method; the statistical population of this research was physical education students studying at Tarbiat Moallem University of Tehran. Ten students participated in this study. Each individual completed a special questionnaire to be healthy during the study period. On subsequent days they performed repeated high-intensity endurance test (RHIET).The RHIET consist of four bouts about 2; 30 minutes. Recovery periods of 5minutes were allowed between bouts. RHIET differed in the kind of activity performed during the recovery periods; Gouging at 63% maximum heart rate, stretching exercises and lying supine. A sample of 5CC blood artery obtained from each individual immediately after the last recovery period. Blood sample were sent to the laboratory for homology test. Their buffering capacity was measured by assessment of the following parameters: PH, PCO2, BB, HCO3 -, BE, O2-sat. The ANOVA Repeated-Measures was use to analyze the data by spss16. Results; Significant differences were shown between the active recovery and the stretching exercises recovery and between the inactive recovery and the stretching exercises recovery on PH, BB and between active recovery and the inactive recovery on O2-sat (P≤0/05). There were no significant differences between the active, inactive and stretching exercises recovery on HCO3 -, PCO2 and BE (p≤0/05). Conclusion; Therefore, this study has show that the inactive recovery improve buffering capacity compared to the stretching exercises and the active recovery. This finding is agreement with research dating Argyris (2004), DuPont (2004), Buchheit (2009) and in agreement with research dating Dorado (2004). Nick Draper (2006), De Geus Bas (2007). Alveolar gas exchange can therefore increase due to slower heart rate and slower breathing rate. The kidneys removal H+ and reabsorption HCO3 -. The body's metabolism becomes lower and producing metabolic is decrease. Temp whole body (muscle, blood) is decrease; oxygen is combined with the hemoglobin strongly. Hence, PH is increase and buffering capacity is improved.