(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)
Hemodynamic and metabolic response during dynamic and resistance exercise in different intensities: a cross-sectional study on implications of intensity on safety and symptoms in patients with coronary disease
Caruso, Flavia Rossi
Bonjorno Junior, Jose Carlos
Mendes, Renata G.
Sperling, Milena Pelosi
Arakelian, Vivian M.
Total Authors: 8
 Cardiopulm Phys Therapy Lab, Brazil Rod Washington Luis KM 235, BR-13565905 Sao Carlos, SP - Brazil
 Univ Sao Paulo, Dept Bioengn, Sao Paulo - Brazil
 Univ Illinois, Integrat Physiol Lab, Coll Appl Hlth Sci, Chicago, IL - USA
 Univ Illinois, Dept Phys Therapy, Chicago, IL - USA
Total Affiliations: 4
AMERICAN JOURNAL OF CARDIOVASCULAR DISEASE;
Web of Science Citations:
Resistance (RE) and aerobic exercise (AE) can promote hemodynamic, physiologic and clinical modifications in coronary artery disease (CAD) patients. The aim of the study is to assess key physiologic and clinical responses during RE at 30% and 60% of 1-RM on a 45 degrees leg press and to compare responses during AE. We evaluated fifteen male subjects with coronary artery disease (60.8+/-4.7 years) that performed the following tests: (1) incremental AE test on cycle ergometer; (2) 1-RM test on a leg press at 45 degrees; (3) and RE at 30% and 60% of 1-RM for 24 repetitions. Peak cardiac output (CO), heart rate (HR), oxygen consumption (VO2), carbon dioxide production (VCO2) and the minute ventilation (V-E, L/min)/VCO2 ration were measured. We found that both AE and RE at 60% of aerobic and resistance capacity elicited similar hemodynamic and ventilatory responses (p>0.05). However, RE at 30% 1-RM showed more attenuated responses of VO2, V-E/VCO2, HR and CO when compared with 60% of aerobic and resistance capacity. Interestingly, the number, percentage and the severity of arrhythmias were higher at 60% 1-RM (P<0.05). Our data suggest that high repetition sets of RE at 60% 1-RM appears to result in hemodynamic, ventilatory, and metabolic changes equivalent to those observed during AE at a comparable intensity. (AU)