Biomedical subjects

Artūras Andziulis

Publications and source records attributed to Artūras Andziulis.

2 recordsLinked to original sources

PubMed2004

[Changes in oxygen consumption of basketball players during recovery after maximal load].

The purpose of this study was to determine the recovery period of basketball players after maximal load. Thirteen male subjects, aged 19-26 years, took part in this study. They performed an incremental cardiopulmonary test using an electronically braked bike ERGOLINE 9000. Ventilation and gas exchange were assessed and measured by breath-to-breath method using VMAX229 metabolic card and Sensor Medics gas flow analyzer. Heart rate parameters were established during continuous ECG monitoring and analysis integrated VMAX and Marquette 3.01 system. Quantitative changes of heart rate, oxygen consumption, double rate product, respiratory quotient, and metabolic equivalent were calculated or established by VMAX application algorithm. A recovery was defined through such parameters: T(HR90%)(time needed for 90% heart rate decreasing from heart rate maximum), T(HR90)(time needed for heart rate decreasing to 90 bpm), T(DPR90%)(time needed for 90% decreasing from a maximal double rate product), T(VO290%)(time needed for 90% decreasing from maximal oxygen consumption), T(RQ90%)(time needed for 90% decreasing from peak respiratory quotient), T(RQ0.9)(time needed for respiratory quotient normalization to 0.9 - to a standard value). Full recovery after maximal load was too long and completed during 1200 s, but some processes were completed earlier (lactic acid buffering within 95 s, oxygen requirement within 620 s, and normalization of heart action within 730 s). Further research is needed to explain this peculiarity of recovery.

Adult↗

PubMed2003

[Bronchial obstruction evaluation according to different methods].

Bronchial obstruction evaluation is usual problem of clinical practice. Solution of this problem sometimes becomes difficult regardless of obvious methods and new technologies introduction. Incorrect bronchial obstruction diagnostic may determine incorrect treatment, case prognosis and may determine loss of disease control. Clinic of Pulmonology of Vilnius University Hospital "Santariskiu klinikos"carried out study about this problem. Preliminary pilot data are presented. Aim of study was comparison of different methods of bronchial obstruction evaluation. In 2002 50 patients with bronchial obstruction diagnosis (bronchial asthma and COPD) were observed. The following tests were performed: standard questionnaire, physical examination, PFT - spirometry, body plethysmography, blood gas analysis. There were analyzed FEV(1)/FVC, FEV(1), FEF(25-75%), RV/TLC, Raw, PaO(2), PaCO(2), SpO(2), pH. This study data shows that for majority (88%) of patients bronchial obstruction can be evaluated by spirometry test, however overall evaluation of patient status (extensive anamnesis and objective evaluation) is also important while determining bronchial obstruction, since 84% of patients complain on dyspnea and for 72% of patients obstruction-specific symptoms are observed during evaluation. Part of patients requires extended lung function evaluation (12%), which confirmed obstruction for 94% of patients. Established strong correlation between measurements of extended lung function evaluation and spirometry measurement FEF(25-75%) shows high informativeness in evaluation of bronchial obstruction.

Asthma↗