Tarkka Ina M, Savić Andrej, Pekkola Elina, Rottensteiner Mirva, Leskinen Tuija, Kaprio Jaakko, Kujala Urho M
Department of Health Sciences, University of Jyväskylä, Jyväskylä, Finland.
School of Electrical Engineering, University of Belgrade, Belgrade, Serbia; Tecnalia Serbia Ltd., Belgrade, Serbia.
Biol Psychol. 2016 May;117:1-7. doi: 10.1016/j.biopsycho.2016.02.001. Epub 2016 Feb 6.
Leisure-time physical activity is a key contributor to physical and mental health. Yet the role of physical activity in modulating cortical function is poorly known. We investigated whether precognitive sensory brain functions are associated with the level of physical activity. Physical activity history (3-yr-LTMET), physiological measures and somatosensory mismatch response (sMMR) in EEG were recorded in 32 young healthy twins. In all participants, 3-yr-LTMET correlated negatively with body fat%, r=-0.77 and positively with VO2max, r=0.82. The fat% and VO2max differed between 15 physically active and 17 inactive participants. Trend toward larger sMMR was seen in inactive compared to active participants. This finding was significant in a pairwise comparison of 9 monozygotic twin pairs discordant for physical activity. Larger sMMR reflecting stronger synchronous neural activity may reveal diminished gating of precognitive somatosensory information in physically inactive healthy young men compared to the active ones possibly rendering them more vulnerable to somatosensory distractions from their surroundings.
休闲时间的体育活动是身心健康的关键因素。然而，体育活动在调节皮质功能方面的作用却鲜为人知。我们研究了认知前感觉脑功能是否与体育活动水平相关。记录了32对年轻健康双胞胎的体育活动史（3年长期代谢当量）、生理指标以及脑电图中的体感失配反应（sMMR）。在所有参与者中，3年长期代谢当量与体脂百分比呈负相关，r = -0.77，与最大摄氧量呈正相关，r = 0.82。15名体育活动活跃者和17名不活跃者之间的体脂百分比和最大摄氧量存在差异。与活跃参与者相比，不活跃参与者的sMMR有增大的趋势。这一发现在9对体育活动不一致的同卵双胞胎的成对比较中具有显著性。与活跃的健康年轻男性相比，更大的sMMR反映出更强的同步神经活动，这可能表明身体不活跃的健康年轻男性在认知前体感信息的门控方面有所减弱，这可能使他们更容易受到周围环境体感干扰的影响。
