RPE-lactate dissociation during extended cycling

@article{Green2004RPElactateDD,
  title={RPE-lactate dissociation during extended cycling},
  author={Jason M. Green and John R McLester and Thad R Crews and P. Jason Wickwire and Robert C. Pritchett and Andrew Redden},
  journal={European Journal of Applied Physiology},
  year={2004},
  volume={94},
  pages={145-150}
}
This study examined the association of blood lactate concentration [La] and heart rate (HR) with ratings of perceived exertion (RPE) during 60 min of steady workload cycling. Physically active college-aged subjects (n=14) completed an exhaustive cycling test to determine VO2peak and lactate threshold (2.5 mmol l−1). Subjects then cycled for 60 min at the power output associated with 2.5 mmol l−1 [LA]. HR, [LA], RPE-overall, RPE-legs and RPE-chest were recorded at 5, 10, 20, 30, 40, 50 and 60… 

RPE association with lactate and heart rate during high-intensity interval cycling.

RPE during intervals of intense cycling were more sensitive to acute metabolic demand (evidenced by HR) versus [La]; tighter overall coupling of HR with RPE (vs [La] with R PE) and a dissociation between RPE-[La] suggest RPE were moresensitive to acute metabolism demand.

Blood lactate and heat stress during training in rowers.

This study suggests that high body temperature may constitute a significant factor of perceived exertion and disrupt indoor training session, and capacity to perform an endurance training on a rowing ergometer was improved by increasing air convection.

Session RPE following interval and constant-resistance cycling in hot and cool environments.

Under the conditions of this study, S-RPE is similar to acute RPE in that no single mediator seems universally dominant, and heat gain, circulatory adjustment to temperature regulation (HR), and [La] consequent to interval (INT) and constant-load (CON) cycling on session RPE (S-R PE).

Heart rate-based lactate minimum test: a reproducible method

The LMT using a heart rate-based protocol is a reproducible method of assessing HR at an exercise intensity where an equilibrium exists between blood lactate accumulation and elimination.

Differences between Males and Females in Determining Exercise Intensity.

Traditional exercise intensity markers are different between males and females and BL and %PO appear to be markers that might be used independently of sex.

Clinical Markers of Exercise Intensity as a Surrogate for Blood Lactate Levels Only During Low-Intensity Exercise in Patients With Coronary Artery Disease

HR and RPE should not be used as a surrogate to a La-based descriptor of exercise intensity in patients with coronary artery disease exercising at high intensity, due to the direct relationship between these variables that occur during the increasing exercise intensity.

Effect of Progressive Fatigue on Session RPE

Results support the hypothesis that sRPE is a sensitive tool that provides information on accumulated fatigue, in addition to training intensity, and exercise scientists without access to HLa measurements may now be able to gain insights into accumulated fatigue during periods of increased training by using sR PE.

Determination of Blood Lactate Training Zone Boundaries With Rating of Perceived Exertion in Runners

RPE values at the BLC training zone boundaries of 4.3 and 6.5 can be used as an affordable tool for controlling intensity to maintain the athletes in prescribed zones during training sessions.

Physiologic responses of older recreational alpine skiers to different skiing modes

The results suggest that aerobic metabolism predominates on flat and low intensity steep slopes and transitions to anaerobic metabolism on steeper high intensity runs.

Estimated times to exhaustion and power outputs at the gas exchange threshold, physical working capacity at the rating of perceived exertion threshold, and respiratory compensation point.

  • H. BergstromT. Housh G. Johnson
  • Engineering
    Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme
  • 2012
The results indicated that the PWC(RPE) was not significantly different from RCP, and these thresholds may be associated with the same mechanisms of fatigue, such as increased levels of interstitial and arterial levels.
...

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