Resistance Training and Executive Functions A 12-Month Randomized Controlled Trial

被引:504
作者
Liu-Ambrose, Teresa [1 ,2 ]
Nagamatsu, Lindsay S. [3 ]
Graf, Peter [2 ,3 ]
Beattie, B. Lynn [2 ,5 ]
Ashe, Maureen C. [4 ]
Handy, Todd C. [2 ,3 ]
机构
[1] Univ British Columbia, Vancouver Coastal Res Inst, Ctr Hip Hlth & Mobil, Dept Phys Therapy, Vancouver, BC V5Z 3P1, Canada
[2] Univ British Columbia, Brain Res Ctr, Vancouver, BC V5Z 3P1, Canada
[3] Univ British Columbia, Vancouver Coastal Res Inst, Dept Psychol, Vancouver, BC V5Z 3P1, Canada
[4] Univ British Columbia, Vancouver Coastal Res Inst, Dept Family Practice, Vancouver, BC V5Z 3P1, Canada
[5] Univ British Columbia, Fac Med, Div Geriatr Med, Vancouver, BC V5Z 3P1, Canada
基金
加拿大创新基金会; 加拿大自然科学与工程研究理事会;
关键词
COGNITIVE FUNCTION; ALZHEIMERS-DISEASE; METABOLIC SYNDROME; PHYSICAL-ACTIVITY; BALANCE; WALKING; RISK; IMPAIRMENT; STRENGTH; PREDICTS;
D O I
10.1001/archinternmed.2009.494
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: Cognitive decline among seniors is a pressing health care issue. Specific exercise training may combat cognitive decline. We compared the effect of once-weekly and twice-weekly resistance training with that of twice-weekly balance and tone exercise training on the performance of executive cognitive functions in senior women. Methods: In this single-blinded randomized trial, 155 community-dwelling women aged 65 to 75 years living in Vancouver were randomly allocated to once-weekly (n = 54) or twice-weekly (n = 52) resistance training or twice-weekly balance and tone training (control group) (n = 49). The primary outcome measure was performance on the Stroop test, an executive cognitive test of selective attention and conflict resolution. Secondary outcomes of executive cognitive functions included set shifting as measured by the Trail Making Tests (parts A and B) and working memory as assessed by verbal digit span forward and backward tests. Gait speed, muscular function, and whole-brain volume were also secondary outcome measures. Results: Both resistance training groups significantly improved their performance on the Stroop test compared with those in the balance and tone group (P < .03). Task performance improved by 12.6% and 10.9% in the once-weekly and twice-weekly resistance training groups, respectively; it deteriorated by 0.5% in the balance and tone group. Enhanced selective attention and conflict resolution was significantly associated with increased gait speed. Both resistance training groups demonstrated reductions in whole-brain volume compared with the balance and tone group at the end of the study (P <= .03). Conclusion: Twelve months of once-weekly or twice-weekly resistance training benefited the executive cognitive function of selective attention and conflict resolution among senior women.
引用
收藏
页码:170 / 178
页数:9
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