. 2017 Jan 25;7(2):227–236. doi: 10.1016/j.jshs.2017.01.005

Table 3.

Relationships between area under the NIRS curve, exercise amount, TST, and sleep efficiency for Channels 5–22.

	Simple correlation		Multiple regression analysis		Simple correlation		Multiple regression analysis		Simple correlation		Multiple regression analysis
	r	p	β	p	r	p	β	p	r	p	β	p
Area under the NIRS curve	Channel 5				Channel 6				Channel 7
Exercise amount	−0.016	0.941	−0.002	0.994	0.363	0.089	0.347	0.100	0.025	0.930	0.061	0.838
TST	0.133	0.544	0.172	0.475	0.367	0.085	0.350	0.107	0.109	0.699	0.152	0.609
Sleep efficiency	−0.081	0.713	−0.132	0.589	0.169	0.442	0.009	0.968	−0.301	0.275	−0.334	0.273
Area under the NIRS curve	Channel 8				Channel 9				Channel 10
Exercise amount	0.502	0.015^*	0.466	0.021^*	0.244	0.261	0.201	0.347	0.335	0.118	0.324	0.110
TST	0.320	0.137	0.253	0.201	0.325	0.131	0.257	0.247	0.454	0.030^*	0.455	0.034^*
Sleep efficiency	0.313	0.146	0.162	0.414	0.310	0.150	0.202	0.367	0.141	0.522	−0.047	0.820
Area under the NIRS curve	Channel 11				Channel 12				Channel 13
Exercise amount	0.551	0.006^*	0.541	0.011^*	0.540	0.008^*	0.517	0.015^*	0.370	0.082	0.375	0.051
TST	0.123	0.577	0.090	0.656	0.077	0.728	0.017	0.933	0.505	0.014^*	0.537	0.009^*
Sleep efficiency	0.153	0.486	0.038	0.852	0.222	0.308	0.133	0.519	0.061	0.784	−0.159	0.409
Area under the NIRS curve	Channel 14				Channel 15				Channel 16
Exercise amount	0.253	0.255	0.255	0.284	0.035	0.108	0.340	0.138	0.481	0.020^*	0.470	0.029^*
TST	0.094	0.676	0.090	0.708	0.218	0.330	0.197	0.393	0.220	0.313	0.194	0.354
Sleep efficiency	0.032	0.886	−0.038	0.877	0.119	0.599	0.003	0.989	0.158	0.472	0.024	0.910
Area under the NIRS curve	Channel 17				Channel 18				Channel 19
Exercise amount	0.546	0.007^*	0.538	0.009^*	0.482	0.023^*	0.542	0.016^*	0.377	0.084	0.367	0.113
TST	0.268	0.217	0.248	0.212	0.197	0.379	0.285	0.191	0.125	0.578	0.096	0.676
Sleep efficiency	0.155	0.479	−0.006	0.977	0.048	0.833	−0.180	0.415	0.117	0.603	0.026	0.911
Area under the NIRS curve	Channel 20				Channel 21				Channel 22
Exercise amount	0.408	0.059	0.439	0.052	0.430	0.046^*	0.456	0.045^*	0.507	0.016^*	0.513	0.025^*
TST	−0.198	0.376	−0.193	0.383	−0.096	0.670	−0.059	0.798	0.089	0.695	0.116	0.598
Sleep efficiency	−0.088	0.697	−0.109	0.625	−0.093	0.681	−0.146	0.533	0.164	0.465	−0.001	0.998

Abbreviations: NIRS = near-infrared spectroscopy; TST = total sleep time.

^⁎

p < 0.05.