Does sex mediate the affective response to high intensity interval exercise?
Todd A Astorino1, Ailish C Sheard2
1Department of Kinesiology, CSU-San Marcos, San Marcos, CA, USA,.
Physiology & Behavior
|February 11, 2019
Summary
Women report more positive affective valence during high-intensity interval exercise (HIIE) and sprint interval exercise (SIE) compared to men. These findings suggest sex differences in affective responses to intense exercise protocols.
Area of Science:
- Exercise Physiology
- Sports Science
- Affective Neuroscience
Background:
- High-intensity interval exercise (HIIE) offers similar benefits to moderate-intensity continuous exercise (MICE) for cardiorespiratory and metabolic health.
- Aversive responses during HIIE may limit long-term adherence, with sex-based differences in physiological responses potentially influencing affective valence, though this remains under-researched.
Purpose of the Study:
- To compare affective valence changes between active men and women during HIIE and SIE.
- To investigate potential sex differences in physiological responses and enjoyment during these interval exercise modalities.
Main Methods:
- Active men and women (mean age 24.0 ± 4.8 years) performed HIIE and SIE on a cycle ergometer.
- Measurements included affect, rating of perceived exertion (RPE), and blood lactate concentration (BLa) during exercise, and enjoyment post-exercise.
Main Results:
- Women reported significantly more positive affect during both HIIE and SIE compared to men.
- Women exhibited lower blood lactate concentrations during SIE compared to men.
- No significant sex differences were found in RPE or enjoyment for either exercise type.
Conclusions:
- Sex is a relevant factor when considering affective valence responses to HIIE and SIE.
- These findings may inform exercise prescription and interventions to enhance adherence to interval training programs.
Keywords:
Blood lactate concentrationExercise adherenceIntermittent exercisePleasure:displeasureRating of perceived exertionMore Related Videos
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