What question did this study set out to answer?

To evaluate the effects of ischemic preconditioning on exercise performance and heart rate dynamics during and immediately following a maximal incremental cycling test.

October 1, 2020The Journal of Sports Medicine and Physical Fitness

Ischemic preconditioning improves performance and accelerates the heart rate recovery

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Why the study?

Although previous studies evaluated the effects of ischemic preconditioning on exercise performance and physiological variables, its effects on performance and heart rate during and immediately after a maximal incremental cycling test remained to be determined.

Does ischemic preconditioning improve performance and heart rate recovery in recreationally trained cyclists?

Comparison

Ischemic preconditioning vs SHAM vs control

Design

Three-arm comparative study

Authors

RARhaí André ArrielUniversidade Federal de Juiz de Fora AMAnderson MeirelesUniversidade Federal de Juiz de Fora RHRodrigo HohlUniversidade Federal de Juiz de Fora

Discussion

Member takes

Implication

May enhance cycling performance and HR recovery; leaves open confirmation via larger RCTs before any athlete application.

Key Points

To evaluate the effects of ischemic preconditioning on exercise performance and heart rate dynamics during and immediately following a maximal incremental cycling test.
Allocated 18 recreationally trained cyclists (aged 28±4 years) into three groups: ischemic preconditioning (IPC), sham, or control.
Administered two 5-minute occlusion cycles (IPC at 50 mm Hg above systolic arterial pressure; sham at 20 mm Hg; control without occlusion) interspersed with 5-minute reperfusion prior to an incremental cycling test.
Measured heart rate, power output, and perceived exertion during cycling, alongside post-exercise heart rate recovery.
Ischemic preconditioning improved incremental cycling performance time by 4.9±4.0%, whereas sham and control groups showed no improvement.
Submaximal heart rate during cycling significantly decreased from 170±8 to 166±8 bpm (P<0.05) exclusively in the IPC group.
Heart rate recovery in the first minute post-exercise was significantly accelerated following IPC, dropping from 151±9 to 145±8 bpm (P<0.05) compared to baseline.

Structured PICO

Does ischemic preconditioning improve performance and heart rate recovery in recreationally trained cyclists?

Population

18 recreationally trained cyclists, mean age 28±4 years

Intervention

Ischemic preconditioning (2 cycles of 5-min occlusion [at 50 mm Hg above systolic arterial pressure] / 5-min reperfusion) prior to a maximal incremental cycling test

Comparator

SHAM (identical to ischemic preconditioning, but at 20 mm Hg) or control (no occlusion)

Outcome

Performance time and heart rate during and immediately after a maximal incremental cycling test (ICT)surrogate

Ischemic preconditioning prior to exercise improves performance time and accelerates heart rate recovery in recreationally trained cyclists.

Cite This Study

Arriel et al. (2020) studied this question.

synapsesocial.com/papers/6a8a8d41e0083a7c2c438023 https://doi.org/10.23736/s0022-4707.20.10822-3

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Ischemic preconditioning improves performance and accelerates the heart rate recovery

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Ischemic preconditioning improves performance and accelerates the heart rate recovery

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Also Consider