Table 4 Relationship between the variables CST (gyroscope, work, steps, and VO2máx) and length of postoperative hospital stay

Level 1

 Work

0.230

1.505

0.147

0.697

1.435

 RMS Amplitude 1

-1.119

-3.441

0.002*

0.154

6.481

 Peak Frequency 1

0.165

1.118

0.276

0.752

1.329

 Peak Power 1

1.362

5.033

<0.0001*

0.223

4.494

 VO_2max

-0.046

-0.261

0.796

0.531

1.884

Level 3

 Work

0.693

2.733

0.012*

0.488

2.047

 RMS Amplitude 3

0.507

1.908

0.070

0.444

2.252

 Level

-0.422

-1.783

0.089

0.561

1.781

 VO_2max

-0.650

-2.639

0.015*

0.517

1.934

Level 4

 Work

0.468

1.973

0.066

0.693

1.443

 RMS Amplitude 4

0.312

1.288

0.216

0.666

1.501

 Level

-0.322

-1.507

0.151

0.856

1.168

 VO_2max

-0.435

-2.127

0.049*

0.936

1.069