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Table 2 Correlation between 2D:4D and sprint, COD, aerobic fitness

From: Association between 2D:4D ratios and sprinting, change of direction ability, aerobic fitness, and cumulative workloads in elite youth soccer players

Variables

β0

β1

β2

β3

β4

β5

β6

β7

β8

β9

β10

β11

β12

β13

β14

β15

β16

β17

β18

VO2max (β0)

1

                  

HRmax (β1)

0.498*

1

                 

BF% (β2)

-0.183

-0.299

1

                

Right 2D (β3)

-0.12

0.178

0.071

1

               

Right 4D (β4)

-0.037

0.197

0.086

0.742#

1

              

Dif-L-R ratio (β5)

-0.1

-0.002

-0.045

0.376

-0.34

1

             

Left 2D (β6)

-0.117

0.224

0.035

0.992£

0.719§

0.4

1

            

Left 4D (β7)

0.02

0.196

0.088

0.736§

0.984£

-0.326

0.714§

1

           

Dif-L-F ratio (β8)

-0.193

0.04

-0.064

0.352

-0.331

0.956£

0.393

-0.36

1

          

COD R foot (β9)

-0.068

0.1

0.135

0.041

0.253

-0.288

-0.002

0.179

-0.236

1

         

COD L foot (β10)

-0.341

-0.346

-0.023

0.224

0.29

-0.091

0.186

0.199

-0.014

0.229

1

        

LF-2D:4D (β11)

-0.107

-0.01

-0.025

0.365

-0.351

0.998£

0.389

-0.336

0.953£

-0.304

-0.114

1

       

RF-2D:4D (β12)

-0.17

0.055

-0.074

0.361

-0.325

0.961£

0.403

-0.351

0.998£

-0.244

-0.035

0.959£

1

      

10 m (β13)

-0.063

-0.048

0.437

0.134

0.242

-0.142

0.074

0.16

-0.111

0.721§

0.42

-0.15

-0.11

1

     

30 m (β14)

-0.059

-0.188

0.348

-0.293

0.019

-0.423

-0.339

-0.075

-0.34

0.556#

0.238

-0.427

-0.34

0.771§

1

    

RPE (β15)

0.253

-0.189

0.362

-0.088

0.074

-0.215

-0.091

0.14

-0.285

-0.083

-0.079

-0.203

-0.288

0.097

0.04

1

   

s-RPE (β16)

0.306

-0.248

0.342

-0.071

0.017

-0.119

-0.093

0.051

-0.175

-0.05

-0.07

-0.106

-0.177

0.052

0.053

0.599#

1

  

TD-top (β17)

0.282

-0.196

0.223

-0.042

-0.03

-0.018

-0.067

-0.03

-0.043

-0.01

-0.027

-0.008

-0.04

0.062

0.062

0.239

0.915£

1

 

TD-average (β18)

0.282

-0.196

0.223

-0.042

-0.03

-0.018

-0.067

-0.03

-0.043

-0.01

-0.027

-0.008

-0.04

0.089

0.089

0.04

0.915£

1.000£

1

  1. Significant differences (p ≤ 0.05) are highlighted in bold; HRmax: Heart rate max; BF%: body fat percentage; 2D: Second digit; 4D: Fourth digit; Dif-R-L-Ratio: Difference right-fingers; Dif-L-R-Ratio: Difference left-fingers; COD R foot: Change of direction right foot; COD L foot: Change of direction left foot; LF-2D:4D: Ratio minus left-fingers; RF-2D:4D: Ratio minus right-fingers; TD-top: Total time duration; TD-average: Average time duration; s-RPE: Session rating of perceived exertion; *: Moderate effect; #: Large effect.; §: Very large effect; £: Nearly perfect effect