Cortical hemodynamics as a function of handgrip strength and cognitive performance: a cross-sectional fNIRS study in younger adults

Herold, Fabian; Behrendt, Tom; Törpel, Alexander; Hamacher, Dennis; Müller, Notger G.; Schega, Lutz

doi:10.1186/s12868-021-00615-6

Table 2 Overview of the regional cortical changes in the concentrations of oxygenated hemoglobin (oxyHb) measured during the Sternberg task (ST) and their correlations with measures of handgrip strength and cognitive performance

From: Cortical hemodynamics as a function of handgrip strength and cognitive performance: a cross-sectional fNIRS study in younger adults

Channels	Median ± IQR	Non-parametric partial correlations
Channels	OxyHb (µmol/L)	AHS (left/right)	NHS (left/right)	Reaction time in ST/correct answers in ST
1 (rt. DLPFC; BA9)	0.017 ± 0.028	r_p (35) = 0.179; p = 0.288/r_p (35) = 0.241; p = 0.151	r_p (35) = 0.145; p = 0.391/r_p (35) = 0.190; p = 0.260	r_p (35) = − 0.417; p = 0.010/r_p (35) = 0.401; p = 0.014
2 (rt. Broca; BA 45)	0.013 ± 0.058	r_p (35) = 0.287; p = 0.085/r_p (35) = 0.161; p = 0.340	r_p (35) = 0.210; p = 0.212/r_p (35) = 0.134; p = 0.430	r_p (35) = − 0.426; p = 0.009/r_p (35) = 0.206; p = 0.222
3 (rt. Broca; BA 45)	0.017 ± 0.053	r_p (34) = 0.021; p = 0.905/r_p (34) = 0.075; p = 0.663	r_p (34) = 0.036; p = 0.833/r_p (34) = 0.108; p = 0.530	r_p (34) = − 0.388; p = 0.019/r_p (34) = 0.241; p = 0.156
4 (rt. FPA; BA 10)	− 0.018 ± 0.073	r_p (35) = − 0.021; p = 0.903/r_p (35) = − 0.007; p = 0.968	r_p (35) = − 0.094; p = 0.581/r_p (35) = − 0.061; p = 0.719	r_p (35) = − 0.170; p = 0.316/r_p (35) = 0.249; p = 0.138
5 (rt. DLPFC; BA 9)	0.016 ± 0.052	r_p (32) = 0.359; p = 0.037/r_p (32) = 0.257; p = 0.143	r_p (32) = 0.225; p = 0.202/r_p (32) = 0.147; p = 0.407	r_p (32) = − 0.404; p = 0.018/r_p (32) = 0.177; p = 0.317
6 (rt. DLPFC; BA 46)	0.021 ± 0.077	r_p (34) = 0.157; p = 0.360/r_p (34) = 0.174; p = 0.310	r_p (34) = 0.087; p = 0.613/r_p (34) = 0.161; p = 0.347	r_p (34) = − 0.431; p = 0.009/r_p (34) = 0.227; p = 0.182
7 (rt. FPA; BA 10)	0.012 ± 0.035	r_p (34) = 0.005; p = 0.979/r_p (34) = 0.053; p = 0.759	r_p (34) = − 0.068; p = 0.692/r_p (34) = 0.009; p = 0.958	r_p (34) = 0.091; p = 0.598/r_p (34) = − 0.160; p = 0.351
8 (rt. FPA; BA 10)	0.008 ± 0.049	r_p (35) = 0.142; p = 0.402/r_p (35) = 0.128; p = 0.451	r_p (35) = 0.013; p = 0.940/r_p (35) = 0.008; p = 0.964	r_p (35) = − 0.299; p = 0.072/r_p (35) = 0.145; p = 0.391
9 (rt. FPA; BA 10)	− 0.037 ± 0.043	r_p (35) = 0.135; p = 0.427/r_p (35) = 0.108; p = 0.524	r_p (35) = 0.120; p = 0.481/r_p (35) = 0.116; p = 0.494	r_p (35) = − 0.091; p = 0.593/r_p (35) = 0.221; p = 0.188
10 (md. FPA; BA 10)	− 0.004 ± 0.037	r_p (35) = 0.246; p = 0.143/r_p (35) = 0.125; p = 0.460	r_p (35) = 0.273; p = 0.102/r_p (35) = 0.152; p = 0.370	r_p (35) = − 0.518; p = 0.001/r_p (35) = 0.173; p = 0.306
11 (lt. FPA; BA 10)	− 0.019 ± 0.056	r_p (35) = 0.102; p = 0.546/r_p (35) = − 0.018; p = 0.915	r_p (35) = 0.093; p = 0.585/r_p (35) = − 0.014; p = 0.934	r_p (35) = − 0.416; p = 0.010/r_p (35) = 0.045; p = 0.793
12 (lt. FPA; BA 10)	0.004 ± 0.049	r_p (35) = 0.295; p = 0.077/r_p (35) = 0.141; p = 0.405	r_p (35) = 0.214; p = 0.205/r_p (35) = 0.072; p = 0.672	r_p (35) = − 0.393; p = 0.016/r_p (35) = 0.103; p = 0.545
13 (lt. FPA; BA 10)	− 0.003 ± 0.052	r_p (34) = 0.244; p = 0.152/r_p (34) = 0.102; p = 0.555	r_p (34) = 0.152; p = 0.375/r_p (34) = 0.017; p = 0.923	r_p (35) = − 0.099; p = 0.566/r_p (35) = − 0.088; p = 0.610
14 (lt. DLPFC; BA 46)	0.018 ± 0.057	r_p (34) = 0.088; p = 0.609/r_p (34) = 0.066; p = 0.704	r_p (34) = 0.048; p = 0.782/r_p (34) = 0.088; p = 0.611	r_p (34) = − 0.118; p = 0.492/r_p (34) = 0.207; p = 0.225
15 (lt. DLPFC; BA 9)	0.002 ± 0.037	r_p (32) = 0.269; p = 0.125/r_p (32) = 0.095; p = 0.593	r_p (32) = 0.242; p = 0.169/r_p (32) = 0.060; p = 0.736	r_p (32) = − 0.459; p = 0.006/r_p (32) = 0.202; p = 0.251
16 (lt. FPA; BA 10)	− 0.008 ± 0.063	r_p (35) = 0.115; p = 0.498/r_p (35) = 0.167; p = 0.322	r_p (35) = 0.115; p = 0.498/r_p (35) = 0.171; p = 0.311	r_p (35) = 0.000; p = 1.000/r_p (35) = 0.122; p = 0.474
17 (lt. Broca; BA 45)	0.019 ± 0.071	r_p (35) = 0.165; p = 0.329/r_p (35) = 0.116; p = 0.493	r_p (35) = 0.165; p = 0.329/r_p (35) = 0.173; p = 0.306	r_p (35) = − 0.230; p = 0.170/r_p (35) = 0.133; p = 0.431
18 (lt. Broca; BA 45)	0.013 ± 0.051	r_p (35) = 0.089; p = 0.601/r_p (35) = 0.030; p = 0.860	r_p (35) = − 0.014; p = 0.936/r_p (35) = 0.007; p = 0.970	r_p (35) = 0.017; p = 0.922/r_p (35) = 0.033; p = 0.844
19 (lt. DLPFC; BA 9)	0.014 ± 0.035	r_p (34) = 0.109; p = 0.527/r_p (34) = 0.020; p = 0.908	r_p (34) = 0.021; p = 0.902/r_p (34) = − 0.029; p = 0.868	r_p (34) = − 0.131; p = 0.445/r_p (34) = 0.089; p = 0.606
20 (rt. DLPFC; BA 9)	0.009 ± 0.031	r_p (35) = 0.241; p = 0.151/r_p (35) = 0.288; p = 0.084	r_p (35) = 0.154; p = 0.362/r_p (35) = 0.243; p = 0.147	r_p (35) = − 0.042; p = 0.806/r_p (35) = 0.234; p = 0.164
21 (md. DLPFC; BA 9)	0.003 ± 0.032	r_p (34) = 0. 358; p = 0.032/r_p (34) = 0.230; p = 0.178	r_p (34) = 0.228; p = 0.181/r_p (34) = 0.088; p = 0.612	r_p (34) = − 0.315; p = 0.061/r_p (34) = 0.299; p = 0.076
22 (lt. DLPFC; BA 9)	0.001 ± 0.029	r_p (35) = 0.110; p = 0.517/r_p (35) = − 0.030; p = 0.860	r_p (35) = 0.092; p = 0.587/r_p (35) = − 0.054; p = 0.752	r_p (35) = − 0.389; p = 0.017/r_p (35) = 0.248; p = 0.139

On the left hand of the table, median ± interquartile range (IQR) of concentrations of oxyHb are displayed. On the right hand of the table, non-parametric correlations (controlled for age and gender) between oxyHb and absolute handgrip strength (AHS), normalized handgrip strength (NHS), reaction time and percentage of correct answers in the ST are shown. Significant correlations are presented in italic
BA broadman area, DLPFC dorsolateral prefrontal cortex, FPA frontopolar area, lt. left, md. middle, r_p partial correlation controlling for age and gender, rt. right, ST Sternberg task

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