Abstract
[Purpose] The aim of the present study was to investigate the reproducibility and the validity of measurement for the sniff nasal inspiratory pressure (SNIP). [Subjects] Forty healthy volunteers (20 men and 20 women), aged 22.2 ± 3.4 years old, participated. [Methods] Force of abdominal elevation was adopted as an assessment of inspiratory muscle strength, and the correlation between the SNIP and the force of abdominal elevation was analyzed to evaluate the validity. [Results] The SNIP measurement showed good reproducibility based on the intraclass correlation coefficient. There was a significant correlation between the SNIP and the force of abdominal elevation in both men and women. [Conclusion] These results suggest that SNIP is acceptable for assessment of inspiratory muscle strength.
