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. 2015 Feb 5;148(1):185–195. doi: 10.1378/chest.14-2380

TABLE 3 ] .

Phase Shift Angles at Baseline

Phase Shift Angle All Subjects (N = 26) LVRS (n = 9) BLVR Responders (n = 7) Control Subjects (n = 10) P Valuea
Quiet breathing, TV, °
 θRC 31.3 ± 38.4 28.2 ± 31.5 50.1 ± 42.2 20.9 ± 40.3 NS
 θRC treated (or worst affected) side 34.2 ± 39.9 36.2 ± 33.8 51.6 ± 4.4 20.2 ± 38.2 NS
 θRC untreated side 29.6 ± 37.3 24.0 ± 30.6 46.1 ± 35.7 23.1 ± 43.6 NS
 θDIA –38.7 ± 36.3 –36.2 ± 29.7 –54.4 ± 44.7 –30.1 ± 35.4 NS
 θDIA treated (or worst affected) side –38.8 ± 36.8 –42.1 ± 31.1 –51.4 ± 45.3 –27.0 ± 35.4 NS
 θDIA untreated side –39.6 ± 36.1 –32.8 ± 28.5 –55.7 ± 42.6 –34.3 ± 37.5 NS
IC maneuver, °
 θRC 5.1 ± 58.0 9.9 ± 55.1 –25.0 ± 44.8 22.0 ± 65.2 NS
 θRC treated (or worst affected) side –12.6 ± 12.6 8.3 ± 49.8 –33.8 ± 52.6 –10.1 ± 53.8 NS
 θRC untreated side 13.5 ± 58.8 9.7 ± 60.6 –8.7 ± 43.7 32.6 ± 65.2 NS
 θDIA 28.9 ± 52.6 17.9 ± 15.0 65.0 ± 54.3 13.6 ± 64.1 NS
 θDIA treated (or worst affected) side 23.1 ± 65.1 13.8 ± 41.4 67.1 ± 64.0 0.7 ± 73.4 NS
 θDIA untreated side 23.7 ± 47.0 18.7 ± 10.1 54.8 ± 45.6 6.5 ± 59.7 NS

Data are presented as mean ± SD. IC = inspiratory capacity; θDIA = phase shift angle between abdominal ribcage compartment and abdomen compartment; θRC = phase shift angle between pulmonary ribcage and abdominal ribcage compartment; TV = tidal volumes during quiet breathing. See Table 1 legend for expansion of other abbreviations.

a

Kruskal-Wallis test with Dunn multiple comparison test.