Relationship between lung function and grip strength in older hospitalized patients: a pilot study

Figures & data

Figure 1 Flowchart for the recruitment into the study.

Table 1 Participant characteristics and their grip strength and spirometry

Characteristics	Men (n=20)	Women (n=30)	P-value
Age, yearsa (n=50)	86.3 (4.9)	87.5 (4.8)	0.44
Height, ma (n=50)	1.71 (0.7)	1.60 (0.7)	0.81
Weight, kga (n=50)	74.9 (15.1)	66.0 (16.4)	0.64
BMI, kg/m^2a (n=50)	25.6 (5.3)	26.0 (6.4)	0.36
MMSEb (n=50)	26 (24,28)	27 (25,29)	0.04
Grip strength, kga (n=50)	19.5 (7.21)	12.4 (3.73)	0.03
FEV1, L/sc (n=50)	1.7 (0.5)	1.0 (0.3)	0.02
FVC, Lc (n=50)	2.1 (0.7)	1.4 (0.4)	0.01
FEV1/FVC, %c (n=50)	77.6 (14.3)	73.6 (12.2)	0.88
PEFR, Lc (n=50)	262.1 (102.5)	148.1 (57.5)	0.004
SVC, Lc (n=40)	2.1 (0.9)	1.2 (0.4)	0.003

Notes:

a Mean (SD);

b median (IQR);

c mean (SD) using t-test. P-values were calculated using Student’s t-test.

Abbreviations: BMI, body mass index; FEV₁, forced expiratory volume in 1 second; FVC, forced vital capacity; MMSE, Mini Mental State Examination; PEFR, peak expiratory flow rate; SVC, slow vital capacity; SD, standard deviation; IQR, interquartile range.

Table 2 Association of grip strength and lung function in the older participants

Lung function	Men				Women
	Unadjusted		Adjusteda		Unadjusted		Adjusteda
	β	P	β	P	β	P	β	P
FEV1 (L/s)	0.03	0.05	0.04	0.06	0.02	0.24	0.02	0.27
FVC (L)	0.04	0.07	0.06	0.07	0.02	0.33	0.02	0.35
FEV1/FVC (%)	0.08	0.87	−0.14	0.85	0.17	0.79	0.17	0.79
PEFR (L)	4.61	0.16	6.60	0.15	6.88	0.01	6.94	0.02
SVC (L)	0.03	0.25	0.04	0.34	0.05	0.03	0.05	0.05

Note:

a Adjusted results for age, height, and weight.

Abbreviations: β, Beta coefficient; FEV₁, forced expiratory volume in 1 second; FVC, forced vital capacity; PEFR, peak expiratory flow rate; P, probability value calculated using SPSS; SVC, slow vital capacity.