Table 2.
Bivariate correlations among all variables. Correlations for primary hypotheses are in italics.
| Variables | ρ (P value) | |||||||||
|
|
SPPBa (n=52) | TUGb (n=51) | SF-36 phys compc (n=49) | CIRS-Gd (n=52) | Age (n=53) | BMIe (n=51) | Waist to hip ratio (n=52) | Sys BPf (n=50) | Dia BPg (n=50) | Mean HRh (n=53) |
| HRV TIi (n=53) |
0.41j; (.003) |
−0.40j; (.004) |
0.37j; (.009) |
−0.43j; (.001) | −0.10; (.47) |
0.07; (.64) |
−0.20; (.16) |
0.07; (.63) |
0.01; (.97) |
−0.36j; (.009) |
| SPPB | —k | −0.79l; (≤.001) |
0.59l; (≤.001) |
−0.23; (.11) |
−0.29; (.04) |
0.10; (.48) |
−0.08; (.58) |
0.06; (.69) |
0.10; (.49) |
−0.04; (.80) |
| TUG | — | — | −0.39j; (.007) |
0.19; (.18) |
0.40j; (.004) |
−0.15; (.30) |
0.10; (.50) |
−0.02; (.87) |
−0.13; (.39) |
0.18; (.20) |
| SF-36 phys comp | — | — | — | −0.65l; (≤.001) |
−0.24; (.10) |
0.07; (.65) |
−0.08; (.59) |
−0.08; (.61) |
−0.10; (.95) |
−0.07; (.65) |
| CIRS-G | — | — | — | — | −0.20; (.16) |
0.19; (.19) |
−0.05; (.75) |
−0.02; (.88) |
−0.03; (.84) |
0.09; (.54) |
| Age | — | — | — | — | — | −0.14; (.34) |
0.40l; (.003) |
0.35j; (.01) |
0.18; (.21) |
0.00; (>.99) |
| BMI | — | — | — | — | — | — | 0.01; (.95) |
−0.12; (.42) |
0.13; (.37) |
−0.21; (.14) |
| Waist to hip ratio | — | — | — | — | — | — | — | 0.13; (.36) |
0.05; (.74) |
−0.09; (.51) |
| Sys BP | — | — | — | — | — | — | — | — | 0.64l; (≤.001) |
−0.11; (.46) |
| Dia BP | — | — | — | — | — | — | — | — | — | −0.03; (.85) |
aSPPB: Short Physical Performance Battery.
bTUG: Timed Up and Go.
cSF-36 phys comp: Short Form 36 physical composite score.
dCIRS-G: Cumulative Illness Rating Scale for Geriatrics.
eBMI: body mass index.
fSys BP: systolic blood pressure.
gDia BP: diastolic blood pressure.
hHR: heart rate.
iHRV TI: heart rate variability triangular index.
jP≤.017.
kNot applicable.
lP≤.001.