How Nasal Breathing Optimises Workouts
Athletic performance depends on efficient oxygen delivery. The respiratory system must work optimally to meet the increased demands of physical activity. While much attention focuses on lung capacity and cardiovascular fitness, the role of nasal breathing in performance optimisation deserves greater consideration.
Oxygen Uptake and Nitric Oxide
While many athletes instinctively switch to mouth breathing during intense activity, research suggests nasal breathing offers distinct physiological advantages. One investigation found that nasal breathing during submaximal cycling resulted in the same oxygen consumption as mouth breathing but required fewer breaths per minute, indicating more efficient respiratory mechanics (Morton et al., 1995).
The production of nitric oxide during nasal breathing holds particular significance for performance. Nitric oxide acts as a potent vasodilator, expanding blood vessels and improving blood flow to working muscles. During nasal breathing, nitric oxide produced in the paranasal sinuses is continuously inhaled into the lungs, where it enhances pulmonary vasodilation and optimises oxygen transfer (Lemaitre et al., 2023).
Training Adaptations
A six-week nasal breathing intervention in young basketball players resulted in significant improvements in both pulmonary function and cardio-respiratory fitness. Participants showed enhanced performance in endurance tests, along with improvements in forced vital capacity, forced expiratory volume, and peak expiratory flow (Cavaggioni et al., 2021).
These findings suggest regular nasal breathing during training may produce adaptations that enhance overall respiratory efficiency and exercise capacity.
Exercise Intensity and Breathing Mode
During low to moderate intensity exercise, nasal breathing remains physiologically feasible and may offer advantages. The natural resistance helps regulate breathing patterns and prevent hyperventilation. Research found that participants could maintain intended training intensities while breathing exclusively through the nose during low-intensity training (Truebner et al., 2023).
As exercise intensity increases, most individuals naturally transition to oronasal or purely oral breathing. However, maintaining some nasal contribution during high-intensity exercise may still provide benefits through continued nitric oxide delivery.
How Nasal Tapes Help
The primary challenge of nasal breathing during exercise stems from higher airflow resistance compared to mouth breathing. Nasal tapes mechanically widen the nasal valve region, reducing resistance and making nasal breathing more comfortable at higher intensities. This allows athletes to experience the benefits of enhanced nitric oxide delivery and controlled breathing patterns during workouts.
For endurance athletes building aerobic capacity, using nasal tapes during lower-intensity training sessions can help maintain nasal breathing as a training discipline, promoting more efficient breathing mechanics and respiratory muscle adaptation.
Individual Variability
Response to nasal breathing and nasal tapes varies among individuals based on nasal anatomy, training status, exercise modality, and breathing patterns. Athletes with significant nasal obstruction stand to benefit most, as the devices address a clear mechanical limitation.
References
Morton AR, et al. Comparison of maximal oxygen consumption with oral and nasal breathing. Aust J Sci Med Sport. 1995 Sep;27(3):51-5.
Lemaitre F, et al. Effect of oral versus nasal breathing on muscular performance and muscle oxygenation. Sports (Basel). 2023 Oct 20;11(10):368.
Cavaggioni L, et al. Effects of a nasal breathing protocol on physical fitness and pulmonary function in young basketball players. J Sports Med Phys Fitness. 2021 Dec;61(12):1619-1625.
Truebner K, et al. Restricted nasal-only breathing during self-selected low intensity training does not affect training intensity distribution. Front Physiol. 2023 Apr 3;14:1134778.