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Table 3 Plethysmography long note – phase 1 slope (mean ± s.e.m. n = 20)

From: The effect of standing and sitting postures on breathing in brass players

Stand start Sit flat Sit slope down Slope back Stand end
20.5 ± 3.3° 19.2 ± 3.5° 18.8 ± 3.1° 19.1 ± 2.9° 20.1 ± 3.5°
Probability Stand end Sit flat Sit slope down Slope back
Stand start 0.441 0.287 0.282 0.318
Sit flat 0.255 - 0.413 0.434
Sit slope down 0.262 0.413 - 0.457
Slope back 0.291    
  1. Probabilities of <0.05 are in bold type.