High-intensity functional exercise does not cause persistent elevations in augmentation index in young men and women
Rian Q Landers-Ramos1, Ibukun Lawal1, Ian Imery2
1Department of Kinesiology, Towson University, Towson, MD, USA.
Summary
High-intensity functional training (HIFT) temporarily increases central augmentation index (AIx) in young adults. Cardiovascular measures return to baseline within 24 hours, with no sex-based differences observed.
Area of Science:
- Cardiovascular Physiology
- Exercise Science
- Sports Medicine
Background:
- Elevated central augmentation index (AIx) is a predictor of cardiovascular disease.
- Understanding the cardiovascular response to novel exercise modalities like high-intensity functional training (HIFT) is crucial.
Purpose of the Study:
- To investigate the immediate and 24-hour changes in AIx following a single bout of HIFT in healthy young adults.
- To compare the AIx recovery patterns between men and women after HIFT.
Main Methods:
- Thirty-two recreationally active young adults (16 men) underwent baseline hemodynamic assessments.
- Participants completed a single bout of bodyweight HIFT, including burpees, jump squats, split squats, and walking lunges.
- Central augmentation index normalized to 75 bpm (AIx75) was measured at baseline and 5, 10, 15, and 24 hours post-exercise.
Main Results:
- A significant main effect of time was observed for AIx75 (P < 0.001), with increases at all acute time points compared to baseline.
- AIx75 returned to resting levels by 24 hours post-exercise.
- No significant time × sex interaction or main effect for sex was found, indicating similar recovery patterns in men and women.
Conclusions:
- The cardiovascular response to HIFT, specifically AIx75, returns to baseline within 24 hours in young adults.
- This suggests no persistent cardiovascular strain from this exercise modality in this population.
- HIFT does not appear to induce differential cardiovascular effects between sexes in the short term.
Keywords:
différences entre les sexesentraînement fonctionnel de haute intensitéhigh-intensity functional trainingsex differencesvasculairevascularMore Related Videos
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