Highest Work Rate That Gives VO2max and its potential effect to develop VO2max
Project no. 680 · Status: Kapanmış · 2017
Summary
Aerobic limit power (ALP) giving the highest work rate that leads to the obtaining of the peak oxygen consumption (VO2peak) may be one of the best exercise stimuli to enhance both aerobic power and anaerobic capacity; however, there is still a lack of information on the exercising effects of the ALP. The aim of this study was, therefore, to analyse physiological and metabolic responses of an exercise modality performing at ALP, and to compare those responses with the other well-known exercise modalities. 10 well-trained male cyclists participated in this study. Critical threshold (CT), maximal O2 consumption (VO2max), peak power output corresponding to the VO2max (PPO) and the ALP were determined by multisession constant work rate exercises performing on separate days. Cyclists performed five high intensity interval training (HIIT) modalities as follows; HIIT–1: 16-18×1 min at 100-105% of PPO; HIIT–2: 4-6×2.5-3 min at 95-100% of PPO; HIIT–3: 3-4×6-8 min at CT; HIIT–4: 4-7×1-2 min at ALP; and HIIT–5: 2×6×30-s at ~175% of PPO. According to our findings, the time spent at VO2peak was greater at HIIT–2 (273±127 seconds) and HIIT–4 (208±111 seconds) (p=0.114; ES=0.55) when compared to the others (<87 seconds) (p<0.001), while there were greater blood lactate accumulations at HIIT–4 (15.6±2.534 mmol·L-1) and HIIT–5 (16.8±2.673 mmol·L-1) (p=0.017; ES=0.92) when compared to the others (<13.7 mmol·L-1) (p<0.001). In conclusion, HIIT–4 performed at the ALP have a higher potential to improve both aerobic power and anaerobic capacity.