不同认知负荷双任务对青年男性前额叶激活及静态姿势控制的影响

doi:10.3969/j.issn.1006-9771.2025.11.009

Abstract

Abstract:

Objective To explore the effect of cognitive-motor dual tasks with different cognitive loads (none, simple and difficult) on activation of prefrontal cortex and static posture control in young man.

Methods From June to July, 2024, 27 healthy male college students were recruited in Hebei Normal University. Static postural control parameters (C90 area), lower limb electromyography data (muscle energy proportion) and prefrontal cortex hemodynamic signals of subjects under single task without cognitive load, dual-task with simple cognitive load, and dual-task with difficult cognitive load were collected using a balanced testing and training system, a wireless surface electromyography device, and functional near-infrared spectroscopy technology.

Results The C90 areas of dual-tasks with simple and difficult cognitive load were smaller than that of the single task without cognitive load (P < 0.05). The proportion of β band energy in the medial and lateral gastrocnemius muscles in the dual-task with simple cognitive load was greater than that in the single task without cognitive load (P < 0.05), while the proportion of piper band energy in the lateral gastrocnemius muscle and tibialis anterior muscle was less (P < 0.05). During dual-task with difficult cognitive load, the activation levels of bilateral ventrolateral prefrontal cortex and right dorsolateral prefrontal cortex were higher than those in the single task without cognitive load (P < 0.05).

Conclusion Dual tasks with appopriate cognitive loads are effective on postural stability in young man. Simple cognitive load promote posture maintenance through optimizing the neuromuscular control of the lower limb muscle groups, while difficult cognitive load through activating the right prefrontal cortex involved in working memory and executive control, involving the neurocognitive compensatory.

Key words: dual tasks, cortical activation, functional near-infrared spectroscopy, posture control

CLC Number:

R493

WU Mengyi, WANG Chong, WANG Pengfei, XING Zeyu, HUO Hongfeng. Effect of dual tasks with different cognitive loads on prefrontal lobe activation and static posture control in young men[J]. Chinese Journal of Rehabilitation Theory and Practice, 2025, 31(11): 1322-1332.

Figures/Tables 10

Figure 1

Table 1

Table 2

Table 3

Table 4

Table 5

Table 6

Table 7

Table 8

Table 9

Post hoc pairwise comparison of HbO2 concentrations on ROI during dual tasks with different cognitive loads"

ROI	认知负荷	认知负荷	平均值差	P值	95%CI
ROI	认知负荷	认知负荷	平均值差	P值	下限	上限
右DLPFC	无认知单任务	简单认知双任务	-1.634	1.000	-26.239	22.970
	简单认知双任务	困难认知双任务	-21.321	0.263	-52.060	9.418
	无认知单任务	困难认知双任务	-22.956	0.034	-44.460	-1.451
右VLPFC	无认知单任务	简单认知双任务	-13.968	0.301	-34.945	7.009
	简单认知双任务	困难认知双任务	-8.997	0.948	-31.524	13.529
	无认知单任务	困难认知双任务	-22.965	0.039	-45.007	-0.924
右FPC	无认知单任务	简单认知双任务	0.719	1.000	-23.630	25.068
	简单认知双任务	困难认知双任务	-15.374	0.102	-32.951	2.204
	无认知单任务	困难认知双任务	-14.655	0.337	-37.473	8.163
右OFC	无认知单任务	简单认知双任务	1.913	1.000	-22.729	26.555
	简单认知双任务	困难认知双任务	-7.777	0.732	-24.472	8.917
	无认知单任务	困难认知双任务	-5.864	1.000	-30.474	18.746
左DLPFC	无认知单任务	简单认知双任务	-0.839	1.000	-23.967	22.290
	简单认知双任务	困难认知双任务	-11.806	0.412	-31.514	7.903
	无认知单任务	困难认知双任务	-12.644	0.282	-31.260	5.972
左VLPFC	无认知单任务	简单认知双任务	-17.844	0.434	-48.211	12.523
	简单认知双任务	困难认知双任务	-8.560	1.000	-36.002	18.883
	无认知单任务	困难认知双任务	26.404	0.018	-48.990	-3.818
左FPC	无认知单任务	简单认知双任务	4.764	1.000	-18.744	28.272
	简单认知双任务	困难认知双任务	-8.398	0.817	-27.554	10.759
	无认知单任务	困难认知双任务	-3.634	1.000	-24.012	16.745
左OFC	无认知单任务	简单认知双任务	2.814	1.000	-20.594	26.222
	简单认知双任务	困难认知双任务	10.179	0.509	-8.266	28.623
	无认知单任务	困难认知双任务	12.993	0.608	-12.441	38.426

Table 9

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频段	肌肉	无认知单任务	简单认知双任务	困难认知双任务
β	腓肠肌内侧	0.08±0.03	0.10±0.04	0.09±0.29
β	腓肠肌外侧	0.06±0.02	0.08±0.03	0.07±0.02
β	胫骨前肌	0.08±0.03	0.10±0.28	0.09±0.04
piper	腓肠肌内侧	0.12±0.30	0.12±0.25	0.11±0.24
piper	腓肠肌外侧	0.11±0.03	0.09±0.02	0.09±0.03
piper	胫骨前肌	0.12±0.02	0.10±0.03	0.11±0.02

频段	肌肉	平方和	自由度	均方	F值	P值
β	腓肠肌内侧	0.007	1.505	0.005	3.879	0.040
β	腓肠肌外侧	0.005	1.539	0.003	4.431	0.026
β	胫骨前肌	0.002	1.462	0.001	2.308	0.126
piper	腓肠肌内侧	0.000	1.385	0.000	0.635	0.480
piper	腓肠肌外侧	0.006	1.198	0.005	5.257	0.023
piper	胫骨前肌	0.006	2.000	0.003	5.579	0.006

频段/肌肉	认知负荷	认知负荷	平均值差	P值	95%CI
频段/肌肉	认知负荷	认知负荷	平均值差	P值	下限	上限
β/腓肠肌内侧	无认知单任务	简单认知双任务	-0.230	0.046	-0.047	< 0.001
	简单认知双任务	困难认知双任务	0.013	0.664	-0.013	0.038
	无认知单任务	困难认知双任务	-0.011	0.189	-0.025	0.003
β/腓肠肌外侧	无认知单任务	简单认知双任务	-0.019	0.037	-0.037	-0.001
	简单认知双任务	困难认知双任务	0.011	0.451	-0.008	0.029
	无认知单任务	困难认知双任务	-0.008	0.220	-0.019	0.003
β/胫骨前肌	无认知单任务	简单认知双任务	-0.013	0.201	-0.029	0.004
	简单认知双任务	困难认知双任务	0.005	1.000	-0.013	0.022
	无认知单任务	困难认知双任务	-0.008	0.148	-0.017	0.002
piper/腓肠肌内侧	无认知单任务	简单认知双任务	-0.004	1.000	-0.019	0.010
	简单认知双任务	困难认知双任务	0.005	0.306	-0.002	0.012
	无认知单任务	困难认知双任务	< 0.001	1.000	-0.013	0.013
piper/腓肠肌外侧	无认知单任务	简单认知双任务	0.019	0.047	0.000	0.037
	简单认知双任务	困难认知双任务	-0.001	1.000	-0.009	0.006
	无认知单任务	困难认知双任务	0.017	0.119	-0.003	0.037
piper/胫骨前肌	无认知单任务	简单认知双任务	0.020	0.016	0.003	0.038
	简单认知双任务	困难认知双任务	-0.012	0.171	-0.028	0.003
	无认知单任务	困难认知双任务	0.008	0.456	-0.006	0.022

ROI	无认知单任务	简单认知双任务	困难认知双任务
右DLPFC	-9.84±25.76	-8.21±43.61	13.11±38.53
右VLPFC	-10.10±28.50	3.87±33.28	12.87±35.80
右FPC	-8.97±34.70	-9.68±40.29	5.69±38.55
右OFC	-3.74±27.00	-5.65±42.51	2.13±44.02
左DLPFC	-6.21±29.66	-5.37±34.39	6.43±34.17
左VLPFC	-11.98±39.07	5.87±39.04	14.43±36.70
左FPC	-2.47±36.79	-7.23±39.60	1.17±36.77
左OFC	-3.58±29.50	-6.40±39.06	-16.58±44.00

ROI	平方和	自由度	均方	F值	P值
右DLPFC	8857.968	2	4428.984	3.202	0.049
右VLPFC	7231.215	2	3615.607	3.671	0.032
右FPC	4064.680	2	2032.340	2.079	0.135
右OFC	886.736	2	443.368	0.433	0.651
左DLPFC	2699.590	2	1349.795	1.547	0.223
左VLPFC	9799.618	2	4899.809	3.263	0.046
左FPC	957.806	2	478.903	0.522	0.596
左OFC	2522.958	2	1261.479	1.196	0.311

Effect of dual tasks with different cognitive loads on prefrontal lobe activation and static posture control in young men

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