Journal article
Self-Paced cycling at the highest sustainable intensity with blood flow restriction reduces external but not internal training loads
International Journal of Sports Physiology and Performance, Vol.17(8), pp.1272-1279
2022
Abstract
Purpose: This study compared training loads and internal:external load ratios from an aerobic interval session at the highest perceptually sustainable intensity with and without blood flow restriction (BFR). Methods: On separate days, 14 endurance cyclists/triathletes completed four 4-minute self-paced aerobic cycling intervals at their highest sustainable intensity, with and without BFR (60% of arterial occlusion pressure). Internal training load was quantified using 3 training impulses (TRIMP; Banister, Lucia, and Edwards) and sessional ratings of perceived exertion. External load was assessed using total work done (TWD). Training load ratios between all internal loads were calculated relative to TWD. Results: Lucia TRIMP was lower for the BFR compared with non-BFR session (49 [9] vs 53 [8] arbitrary units [au], P = .020, dz = −0.71). No between-conditions differences were observed for Banister TRIMP (P = .068), Edwards TRIMP (P = .072), and training load in sessional ratings of perceived exertion (P = .134). The TWD was lower for the BFR compared with non-BFR session (223 [52] vs 271 [58] kJ, P < .001, dz = −1.27). Ratios were greater for the BFR session compared with non-BFR for Lucia TRIMP:TWD (0.229 [0.056] vs 0.206 [0.056] au, P < .001, dz = 1.21), Edwards TRIMP:TWD (0.396 [0.105] vs 0.370 [0.088] au, P = .031, dz = 0.66), and training load in sessional ratings of perceived exertion:TWD (1.000 [0.266] vs 0.890 [0.275] au, P = .044, dz = 0.60), but not Banister TRIMP:TWD (P = .306). Conclusions: Practitioners should consider both internal and external loads when monitoring BFR exercise to ensure the demands are appropriately captured. These BFR-induced changes were reflected by the Lucia TRIMP:TWD and Edwards TRIMP:TWD ratio, which could be used to monitor aerobic BFR training loads. The Lucia TRIMP:TWD ratio likely represents BFR-induced changes more appropriately compared with ratios involving either Edwards or Banister TRIMP.
Details
- Title
- Self-Paced cycling at the highest sustainable intensity with blood flow restriction reduces external but not internal training loads
- Authors/Creators
- N.D.W. Smith (Author/Creator)J.J. Peiffer (Author/Creator)O. Girard (Author/Creator)B.R. Scott (Author/Creator)
- Publication Details
- International Journal of Sports Physiology and Performance, Vol.17(8), pp.1272-1279
- Publisher
- Human Kinetics
- Identifiers
- 991005542080107891
- Copyright
- © 2022 Human Kinetics
- Murdoch Affiliation
- School of Allied Health; Centre for Healthy Ageing; Murdoch Applied Sports Science Laboratory
- Language
- English
- Resource Type
- Journal article
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.172 Sports Science
- 1.172.414 Training Optimization
- Web Of Science research areas
- Physiology
- Sport Sciences
- ESI research areas
- Clinical Medicine