Lactate distribution in the blood during
steady-state exercise. Med Sci Sports Exerc.
However at intensities between LT1 and second lactate threshold (LT2) (phase 2) the lactate production rate is higher than metabolizing capacity in the muscle and the lactate will appear in the blood (increasing the BL concentration), but with possibility of stabilization in
steady-state exercise. Above LT2 (phase 3), the muscular lactate production rate exceeds the systemic lactate elimination rate without attainment of steady-state during a constant work-load (Binder et al., 2008; Tscharkert and Hofmann, 2013).
The study also noted that Zumba is a good weight-control exercise because it is an interval training (going back and forth between high- and low-intensity workout) where you burn more calories during and even after workout, even more than a
steady-state exercise like jogging.
Therefore the HR-V[O.sub.2] relationship during non-steady-state exercise cannot mimic the relationship in
steady-state exercise as the oxygen consumption is reduced due to a decrease in exercise intensity while the HR remains high.
Figure 1 presents the percentage of the physiological parameter during
steady-state exercise compared to the maximal value of the respective physiological variable.
The magnitude of cardiovascular drift during the 2-hr bout of
steady-state exercise was not different between trials (p = 0.886).
Heart-rate threshold related to lactate turn point and
steady-state exercise on a cycle ergometer.
(1996) Comparison of muscle near-infrared spectroscopy and femoral blood gases during
steady-state exercise in humans.
Oxygen consumption values were averaged over a 5-min period during
steady-state exercise. Heart rate was observed using a Polar HR monitor and recorded at the 7 1/2-min mark.
(1975) Muscular efficiency during
steady-state exercise: effects of speed and work rate.
Ischemic cycling studies use pneumatic cuffs placed proximally around both thighs, then inflate them to impede blood flow and [O.sub.2] delivery during
steady-state exercise (9,14).
Of relevance, only
steady-state exercise was performed in these studies and total work output was not assessed.
