The sensitivity of differential ratings of perceived exertion as measures of internal load

McLaren, S.J., Graham, M., Spears, I.R. ORCID: 0000-0003-4982-2841 and Weston, M., 2016. The sensitivity of differential ratings of perceived exertion as measures of internal load. International Journal of Sports Physiology and Performance, 11 (3), pp. 404-406. ISSN 1555-0265

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Abstract

Purpose: To investigate the sensitivity of differential ratings of perceived exertion (dRPE) as measures of internal load.

Methods: Twenty-two male university soccer players performed 2 maximal incremental-exercise protocols (cycle, treadmill) on separate days. Maximal oxygen uptake (V̇O2max), maximal heart rate (HRmax), peak blood lactate concentration (B[La]peak), and the preprotocol-to-postprotocol change in countermovement-jump height (ΔCMJH) were measured for each protocol. Players provided dRPE (CR100) for breathlessness (RPE-B) and leg-muscle exertion (RPE-L) immediately on exercise termination (RPE-B0, RPE-L0) and 30 min postexercise (RPE-B30, RPE-L30). Data were analyzed using magnitude-based inferences.

Results: There were clear between-protocols differences for V̇O2max (cycle 46.5 ± 6.3 vs treadmill 51.0 ± 5.1 mL · kg−1 · min−1, mean difference –9.2%; ±90% confidence limits 3.7%), HRmax (184.7 ± 12.7 vs 196.7 ± 7.8 beats/min, –6.0%; ±1.7%), B[La]peak (9.7 ± 2.1 vs 8.5 ± 2.0 mmol/L, 15%; ±10%), and ΔCMJH (–7.1 ± 4.2 vs 0.6 ± 3.6 cm, –23.2%; ±5.4%). Clear between-protocols differences were recorded for RPE-B0 (78.0 ± 11.7 vs 94.7 ± 9.5 AU, –18.1%; ±4.5%), RPE-L0 (92.6 ± 9.7 vs 81.3 ± 14.1 AU, 15.3%; ±7.6%), RPE-B30 (70 ± 11 vs 82 ± 13 AU, –13.8%; ±7.3%), and RPE-L30 (86 ± 12 vs 65 ± 19 AU, 37%; ±17%). A substantial timing effect was observed for dRPE, with moderate to large reductions in all scores 30 min postexercise compared with scores collected on exercise termination.

Conclusion: dRPE enhance the precision of internal-load measurement and therefore represent a worthwhile addition to training-load-monitoring procedures.

Item Type: Journal article
Alternative Title: Measuring internal load with dRPE [running head]
Publication Title: International Journal of Sports Physiology and Performance
Creators: McLaren, S.J., Graham, M., Spears, I.R. and Weston, M.
Publisher: Human Kinetics Journals
Date: 2016
Volume: 11
Number: 3
ISSN: 1555-0265
Identifiers:
NumberType
10.1123/ijspp.2015-0223DOI
Divisions: Schools > School of Science and Technology
Depositing User: Linda Sullivan
Date Added: 09 Aug 2019 14:54
Last Modified: 09 Aug 2019 14:54
URI: http://irep.ntu.ac.uk/id/eprint/37215

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