What is the clinical evidence from this study?

Study design: Cross-Sectional. Population: Elite endurance athletes (n=160). Intervention: Running vs. Cycling. Primary outcome: Relationship between RPE and %HR, %VO2, and capillary blood lactate concentrations (r = 0.80-0.82, p=<.05).

What does this research mean for the field?

Among elite endurance athletes, running induces systematically higher relative heart rate and oxygen uptake compared to cycling at the same rating of perceived exertion, with these differences being more pronounced at lower exercise intensities. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

Determine the impact of exercise mode, sex, and individual variability on Borg rating of perceived exertion relative to heart rate, oxygen uptake, and capillary blood lactate in elite athletes.

April 8, 2021International Journal of Sports Physiology and PerformanceOpen Access

Is Rating of Perceived Exertion a Valuable Tool for Monitoring Exercise Intensity During Steady-State Conditions in Elite Endurance Athletes?

Q: What are the key findings of this study?

Running induced a systematically higher %HR (~2%) and %VO2 (~5%) compared with cycling at the same RPE (P < .05), with greater differences at lower intensities among elite endurance athletes.

Q: What does this research mean for the field?

Among elite endurance athletes, running induces systematically higher relative heart rate and oxygen uptake compared to cycling at the same rating of perceived exertion, with these differences being more pronounced at lower exercise intensities. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Q: What question did this study set out to answer?

Determine the impact of exercise mode, sex, and individual variability on Borg rating of perceived exertion relative to heart rate, oxygen uptake, and capillary blood lactate in elite athletes.

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Key result

Running linked to ~5% higher %VO2 and greater %HR than cycling at matched RPE.

r = 0.80-0.82
P<.05
n=160

Why the study?

Rating of perceived exertion is widely used to assess effort, but the effects of exercise mode, sex, and between-subject variation on Borg RPE relative to physiological markers required investigation in elite endurance athletes.

Population

160 elite endurance athletes

Comparison

Cycling (n = 84) vs running (n = 76)

Authors

TLThomas LosnegardNorwegian Institute of Public Health SSSondre SkarliNorwegian School of Sport Sciences JHJoar HansenUniversity of Inland Norway

Discussion

Member takes

Implication

RPE may underestimate physiological load during running versus cycling in elites; hypothesis-generating for mode-specific intensity tools in prospective trials.

Key Points

Determine the impact of exercise mode, sex, and individual variability on Borg rating of perceived exertion relative to heart rate, oxygen uptake, and capillary blood lactate in elite athletes.
Evaluated 160 elite endurance athletes undergoing submaximal and maximal testing during cycling (n = 84, 37 women) or running (n = 76, 32 women).
Conducted 4 to 7 progressive 5-minute steady-state stages between ~50% and 85% of maximal oxygen uptake to measure heart rate, oxygen uptake, capillary blood lactate, and Borg 6–20 scores, followed by an incremental test to exhaustion.
Rating of perceived exertion correlated strongly with relative heart rate, relative oxygen uptake, and capillary blood lactate (r = .80–.82, all P < .05), with between-subject variation decreasing from ~10%–15% at RPE 8 to ~5% at RPE 17.
Running elicited systematically higher relative heart rate (~2%, P < .05) and relative oxygen uptake (~5%, P < .05) than cycling at identical perceived exertion, with larger disparities at lower intensities (RPE < 13).
Female athletes exhibited significantly higher relative heart rate and oxygen uptake than male athletes at the same perceived exertion rating (<1%, P < .05).

Study Design

Type

Cross-Sectional (n=160)

Structured PICO

Population

160 elite endurance athletes (cycling n=84, 37 women; running n=76, 32 women)

Intervention

Submaximal and maximal test protocol (cycling or running) with assessment of Borg Rating of Perceived Exertion (RPE)

Outcome

Relationship between Borg RPE (6-20) and heart rate (HR), oxygen uptake (VO2), and capillary blood lactate concentrationssurrogate

Main Result

Effect estimate: r = 0.80-0.82

p-value: p=<.05

Exercise mode and sex slightly influence the relationship between RPE and physiological markers like HR and VO2 in elite endurance athletes, suggesting multiple tools should be used to evaluate training intensity.

Cite This Study

Losnegard et al. (2021) conducted a cross-sectional in Elite endurance athletes (n=160). Running vs. Cycling was evaluated on Relationship between RPE and %HR, %VO2, and capillary blood lactate concentrations (r = 0.80-0.82, p=<.05). Running induced a systematically higher %HR (~2%) and %VO2 (~5%) compared with cycling at the same RPE (P < .05), with greater differences at lower intensities among elite endurance athletes.

synapsesocial.com/papers/6a153692814bf8ec9a4e3eb9 https://doi.org/10.1123/ijspp.2020-0866

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Implication

RPE may underestimate physiological load during running versus cycling in elites; hypothesis-generating for mode-specific intensity tools in prospective trials.

Is Rating of Perceived Exertion a Valuable Tool for Monitoring Exercise Intensity During Steady-State Conditions in Elite Endurance Athletes?

Discussion

Member takes

Implication

Key Points

Study Design

Structured PICO

Main Result

Cite This Study

Is Rating of Perceived Exertion a Valuable Tool for Monitoring Exercise Intensity During Steady-State Conditions in Elite Endurance Athletes?

Discussion

Member takes

Implication

Key Points

Study Design

Structured PICO

Main Result

Cite This Study

Also Consider

Also Consider