Does level of breast support differentially affect exertional symptoms and respiratory system responses in large- and small-breasted women during treadmill exercise?
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View abstract on PubMed
Summary
This summary is machine-generated.High-support sports bras reduce breast movement but increase chest tightness in large-breasted females. Both groups experienced similar breathlessness, but larger breasts led to higher perceived breathlessness during exercise.
Area Of Science
- Exercise Physiology
- Biomechanics
- Sports Medicine
Background
- Breast support is crucial during physical activity to minimize discomfort and optimize performance.
- The impact of sports bra support on exertional symptoms and physiological responses in females with varying breast volumes is not fully understood.
Purpose Of The Study
- To investigate the effects of different sports bra support levels on exertional symptoms and respiratory responses in small- and large-breasted females during treadmill exercise.
- To compare breast movement, chest tightness, and breathlessness between small breast volume (SBV) and large breast volume (LBV) groups under varying exercise intensities and bra support conditions.
Main Methods
- Twenty recreationally active females were categorized into SBV and LBV groups.
- Participants performed treadmill exercise at 30%, 60%, and 90% of peak power output (PPO) while wearing either a high- or low-support sports bra.
- Measurements included cardiorespiratory variables, lung volumes, electromyography, respiratory pressures, breast acceleration, and subjective exertional symptoms (breathlessness, chest tightness).
Main Results
- High-support bras significantly reduced breast acceleration in both groups but increased chest tightness ratings in the LBV group, particularly at higher intensities.
- While objective respiratory measures and breathlessness intensity did not differ significantly between bra types or breast volumes, LBV participants reported consistently higher breathlessness intensity and unpleasantness.
- No significant differences were observed in cardiorespiratory variables, lung volumes, or inspiratory muscle activity based on breast volume or bra support.
Conclusions
- Sports bra support effectively reduces breast movement but can induce chest tightness in larger-breasted individuals.
- Subjective experiences of breathlessness are higher in large-breasted individuals during exercise, irrespective of bra support.
- Future research and product development should prioritize mitigating subjective discomfort, especially chest tightness and breathlessness, for effective breast support in weight-bearing activities, particularly for those with larger breasts.
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