北京体育大学学报
北京體育大學學報
북경체육대학학보
Journal of Beijing University of Physical Education
2014年
3期
77~83
,共null页
有氧运动 体育锻炼 运动干预 大学生 执行功能 核磁共振成像
有氧運動 體育鍛煉 運動榦預 大學生 執行功能 覈磁共振成像
유양운동 체육단련 운동간예 대학생 집행공능 핵자공진성상
aerobics ; exercise ; exercise intervention ; college students ; executive function; magnetic resonance imaging
目的：采用全脑功能磁共振成像（fMRI）方法比较分析有氧体育锻炼前后大学生相关脑区激活情况，探讨有氧体育锻炼对大学生执行功能的影响与机制。方法：以56名身体健康、无异常心理症状的大学生（20．9岁±1．2岁，其中男28人）为研究参与者，实验组进行8周、每周5d、每天1h功率自行车蹬骑的有氧体育锻炼干预，对照组相同时间不进行干预。采用Siemens Magnetom Trio3．0T全身磁共振成像系统，对参与者进行执行参量设计的倒数n项实验时全脑JMRI扫描。数据经过头动校正、空间标准化等处理后进行重复测量的方差分析。结果：经过有氧体育锻炼干预后，实验组进行n—back任务时行为学表现明显优于对照组；执行加工相关脑区有范围更广、程度更高的脑区激活表现，主要表现在双侧额叶中回、左顶上小叶、左扣带回、右中央前回、右中央后回和左额上回。结论：8周有规律的有氧体育锻炼对于提高大学生的执行功能具有统计学上的显著性意义，有氧体育锻炼对大学生执行功能的改善主要通过提高执行加工相关脑区的激活强度和范围来实现。
目的：採用全腦功能磁共振成像（fMRI）方法比較分析有氧體育鍛煉前後大學生相關腦區激活情況，探討有氧體育鍛煉對大學生執行功能的影響與機製。方法：以56名身體健康、無異常心理癥狀的大學生（20．9歲±1．2歲，其中男28人）為研究參與者，實驗組進行8週、每週5d、每天1h功率自行車蹬騎的有氧體育鍛煉榦預，對照組相同時間不進行榦預。採用Siemens Magnetom Trio3．0T全身磁共振成像繫統，對參與者進行執行參量設計的倒數n項實驗時全腦JMRI掃描。數據經過頭動校正、空間標準化等處理後進行重複測量的方差分析。結果：經過有氧體育鍛煉榦預後，實驗組進行n—back任務時行為學錶現明顯優于對照組；執行加工相關腦區有範圍更廣、程度更高的腦區激活錶現，主要錶現在雙側額葉中迴、左頂上小葉、左釦帶迴、右中央前迴、右中央後迴和左額上迴。結論：8週有規律的有氧體育鍛煉對于提高大學生的執行功能具有統計學上的顯著性意義，有氧體育鍛煉對大學生執行功能的改善主要通過提高執行加工相關腦區的激活彊度和範圍來實現。
목적：채용전뇌공능자공진성상（fMRI）방법비교분석유양체육단련전후대학생상관뇌구격활정황，탐토유양체육단련대대학생집행공능적영향여궤제。방법：이56명신체건강、무이상심리증상적대학생（20．9세±1．2세，기중남28인）위연구삼여자，실험조진행8주、매주5d、매천1h공솔자행차등기적유양체육단련간예，대조조상동시간불진행간예。채용Siemens Magnetom Trio3．0T전신자공진성상계통，대삼여자진행집행삼량설계적도수n항실험시전뇌JMRI소묘。수거경과두동교정、공간표준화등처리후진행중복측량적방차분석。결과：경과유양체육단련간예후，실험조진행n—back임무시행위학표현명현우우대조조；집행가공상관뇌구유범위경엄、정도경고적뇌구격활표현，주요표현재쌍측액협중회、좌정상소협、좌구대회、우중앙전회、우중앙후회화좌액상회。결론：8주유규률적유양체육단련대우제고대학생적집행공능구유통계학상적현저성의의，유양체육단련대대학생집행공능적개선주요통과제고집행가공상관뇌구적격활강도화범위래실현。
Objective ： This study aimed to observe the effects of aerobic exercise on college students＇ executive func- tions and its related cerebral mechanism. The influence of aerobic exercise on executive functions of college students was estimated by functional magnetic resonance imaging （fMRI） in brain areas before and after aerobic exercise. Methods： Fifty-six healthy students （20.9 ± 1.2 yrs, 28 males） were randomly assigned into exercise and control group. The exercise group people took aerobic exercise on cycle ergometer for 1 hour per day, 5 times a week, and 8 weeks in total, while the control group people didn＇t do anything during the same time. Both groups participated in the reciprocal term n test on enforcement parameter, and their brains were scanned by functional magnetic resonance imaging（fMRI） with Siemens Magnetom Trio 3.0T. The statistical method of repeated-measure of ANOVAs was used to analyze the data after head movement correction and space standardization. Results： After aerobic exercise intervention, the training group had an obviously better behavior performance than control group in n-back tasks test. Brain regions associated with execution and processing showed that brain activation was in a larger range and a higher level after exercise intervention. The activation brain areas were mainly in contralateral frontal gyms, left top lobules, paracentral lobules, fight precentral gyms, right postcentral gyrus and left superior temporal gyms. Conclusion： The executive functions of college students were improved significantly after 8 weeks regular aerobic exercise. The positive influence of aerobic exercise on executive functions was achieved mainly via the changes of intensity and range of brain activation in brain regions associated with execution and processing.
