Inspiratory muscle training in the healthy adult: The relationship between load, perception, and oxygen consumption.

ABSTRACT:

Background

Inspiratory muscle training (IMT) is used in a broad range of populations to improve the strength and endurance of the respiratory muscles, to improve both athletic performance and clinical outcomes. However, the optimal approach to IMT remains uncertain, and IMT is frequently declined in the clinical setting. This study aimed to measure oxygen consumption (VO₂) and perceived difficulty and unpleasantness during commonly cited IMT loads.

Methods

Thirty participants performed IMT at 4cmH₂O and 30%, 50% and 80% of their maximal inspiratory strength (PImax). VO₂ was measured using indirect calorimetry. After each load, a visual analogue scale was used to rate breathing difficulty (VAS-D) and unpleasantness (VAS-U) RESULTS: Median (IQR

SUBMITTER: Jenkins TO 

PROVIDER: S-EPMC12820911 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature