Contrast Media & Molecular Imaging

Research Article

Prediction of Loss of Muscle Mass in Sarcopenia Using Ultrasonic Diaphragm Excursion

Table 2

Comparison of body composition and diaphragm excursion between groups A and B.


Variable	Group A	Group B	value

Dq (cm)	2.01 (1.71–2.29)	1.51 (0.92–2.10)	0.166
Df (cm)	6.18 (5.57–6.79)	4.36 (3.49–5.22)	0.008
FVC	2.83 (2.63–3.03)	2.31 (1.94–2.69)	0.011
FEV1.0	2.04 (1.87–2.21)	1.60 (1.32–1.86)	0.018
PEF	5.40 (4.81–5.99)	3.78 (3.03–4.54)	0.019
Pimax	64.20 (57.23–71.16)	45.45 (36.56–54.35)	0.017
WRmax	104.26 (97.08–111.44)	70.73 (61.71–79.75)	0.000
VO₂max	1.30 (1.21–1.39)	0.88 (0.79–0.97)	0.000
V_Emax	53.12 (49.01–57.24)	41.05 (36.01–46.08)	0.000
V_Tmax	2.61 (2.36–2.86)	2.03 (1.69–2.36)	0.001

Dq, ultrasonic diaphragm excursion during quiet breathing; Df, ultrasonic diaphragm excursion during forced deep breathing; FVC, forced vital capacity; FEV1.0, forced expiratory volume in one second; PEF, peak expiratory flow; Pimax, maximal inspiratory pressure; WRmax, maximal work rate; VO₂max, maximal oxygen consumption; V_Emax, peak minute ventilation during exercise; V_Tmax, peak tidal volume during exercise.