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Table 2 Descriptive statistics of linear and non linear HRV indices at baseline and recovery among the study groups

From: Patients with hip fracture and total hip arthroplasty surgery differ in anthropometric, but not cardiovascular screening abnormalities

  

Baseline

Mean(± SD)

Recovery

Mean(± SD)

MA

Male/female

THA

n = 30

17/13

Mean (± SD)

HFS

n = 21

6/15

Mean (± SD)

Control

n = 20

8/12

Mean (± SD)

THA

n = 30

17/13

Mean (± SD)

HFS

n = 21

6/15

Mean (± SD)

Control

n = 20

8/12

Mean (± SD)

TD

HR [bpm]

78.14 (± 10.76)

82.49 (± 12.44)

71.42 (± 11.63)

78.99 (± 11.24)

83.19 (± 12.56)

70.88 (± 11.49)

 

SDNN [ms]

19.08 (± 12.19)

14.58 (± 6.95)

24.15 (± 17.83)

22.49 (± 11.65)

18.67 (± 8.30)

28.58 (± 16.31)

 

RMSSD [ms]

14.37 (± 19.46)

10.05 (± 7.05)

18.62 (± 19.51)

14.40 (± 19.53)

12.67 (± 11.01)

16.97 (± 16.58)

 

RR [breath/min]

17.35 (± 4.07)

17.13 (± 4.08)

16.6 (± 3.90)

18.23 (± 4.55)

18.26 (± 4.42)

16.65 (± 3.74)

FD

ln LF [ms2]

3.97 (± 1.21)

3.35 (± 1.07)

4.48 (± 1.23)

4.14 (± 1.28)

3.85 (± 1.04)

4.67 (± 1.06)

 

ln HF [ms2]

3.31 (± 1.29)

2.78 (± 1.30)

3.89 (± 1.54)

3.23 (± 1.38)

2.98 (± 1.50)

3.81 (± 1.27)

 

LF/HF [-]

0.66 (± 1.12)

0.57 (± 0.96)

0.58 (± 0.92)

0.96 (± 1.02)

0.86 (± 1.22)

0.85 (± 0.66)

PPA

SD1 [ms]

10.18 (± 13.80)

7.12 (± 5.00)

13.19 (± 13.83)

10.20 (± 13.84)

8.98 (± 7.80)

12.03 (± 11.76)

 

SD2 [ms]

23.93 (± 12.36)

19.02 (± 9.06)

30.83 (± 21.62)

28.89 (± 11.94)

24.23 (± 10.13)

38.15 (± 20.48)

 

SD2/SD1 [%]

3.28 (± 1.39)

3.33 (± 1.52)

3.14 (± 1.58)

4.22 (± 2.24)

4.03 (± 2.32)

4.05 (± 1.68)

  1. Baseline is before and recovery after grip strength task, MTP measurement time point, SD standard deviation, HRV heart rate variability, THA total hip arthroplasty, HFS hip fracture surgery, MA method of analysis, TD time domain, FD frequency domain, PPA Poincaré-Plot analysis, HR [bpm] heart rate mean in beats per minute, SDNN the mean of the time of two successive heart beats, ms millisecond, RMSSD root mean square of successive differences, RR respiratory rate, ln natural logarithm, LF low frequency, HF high frequency, LF/HF ratio of low frequency and high frequency, SD1 standard deviation of the short-term NN interval variability, SD2 standard deviation of the long-term NN interval variability, SD2/SD1 ratio between SD2 and SD1