Introduction
The anaerobic threshold determination in resistance exercises has been the subject of several studies. However, the impact of these evaluations over the hemodynamic parameters of blood pressure and heart rate are still unknown.
Objective
To compare the estimate of the anaerobic threshold (AnT) obtained during test and retest of an incremental protocol in resistance exercises of bench press (BP) and biceps curl (BC), and analyze the hemodynamic variable behavior of heart rate (HR), systolic (SBP) and diastolic blood pressure (DBP) during the incremental load protocol.
Methods
Eight male practitioners of resistance training volunteers have been recruited and carried out four incremental load tests (two in BP and two in BC) in distinct days for AnT determination. During each test, the variables of blood lactate, HR, SBP and DBP were measured at the end of each stage.
Results
The values of AnT expressed in % of maximum load (1-RM) for BP in test and retest were 19.7±4.0% and 18.4±3.4% respectively, and for BC were 17.7±3.4% and 19.4±3.1% respectively, not being found statistical differences between these. During tests, HR ranged on average between 90 and 135bpm for BP and between 98 and 150bpm for BC. Only the SBP has changed during tests, ranging between 111.8 to 123.3mmHg in BP and 119.4 to 141.3mmHg in BC.
Conclusion
These results suggest that the intensity related to AnT is not different for BP or BC during test or retest. Despite differences in hemodynamic behavior between exercise types (BP vs. BC), HR and SBP values had an elevation within acceptable clinical limits as suggested by literature.
anaerobic threshold; resistance training; lactic acid; heart rate; arterial pressure
