Effects of a specially designed aerobic dance routine on mild cognitive impairment

Yi Zhu, Han Wu, Ming Qi, Sheng Wang, Qin Zhang, Li Zhou, Shiyan Wang, Wei Wang, Ting Wu, Ming Xiao, Siyu Yang, Hong Chen, Ling Zhang, Kathryn Chu Zhang, Jinhui Ma, Tong Wang, Yi Zhu, Han Wu, Ming Qi, Sheng Wang, Qin Zhang, Li Zhou, Shiyan Wang, Wei Wang, Ting Wu, Ming Xiao, Siyu Yang, Hong Chen, Ling Zhang, Kathryn Chu Zhang, Jinhui Ma, Tong Wang

Abstract

Background: Mild cognitive impairment (MCI) is known as a transitional stage or phase between normal aging and dementia. In addition, it is associated with an increased risk of dementia. Research has shown that moderate-intensity exercise is associated with a decreased risk of cognitive impairment. Two recent studies demonstrated that dance interventions are associated with improved cognitive function in the elderly with MCI.

Purpose: We evaluated the effect of a moderate-intensity aerobic dance routine on the cognitive function in patients with MCI.

Patients and methods: This is a single-blind randomized controlled trial. Sixty MCI patients were randomized to receive either treatment (aerobic dance routine + usual care) or control (usual care only) for 3 months. All patients received usual care for an additional 3 months thereafter. The aerobic dance routine was a specially designed dance routine which involved cognitive effort for patients to memorize the complex movements. Wechsler memory scale-revised logical memory (WMS-R LM) and event-related evoked potentials (ERPs) P300 latency were used to assess patients' cognitive function at baseline, 3 months, and 6 months.

Results: Twenty-nine patients received exercise therapy and 31 patients received usual care. Patients in the treatment group showed a greater improvement in memory (difference in WMS-R LM changes over 3 months 4.6; 95% CI 2.2, 7.0; p<0.001) and processing speed (difference in P300 latency changes over 6 months -20.0; 95% CI=-39.5, -0.4; p<0.05) compared to control.

Conclusion: This dance routine improves cognitive function, especially episodic memory and processing speed, in MCI patients and merits promotion in communities.

Keywords: cognitive function; dance; memory; mild cognitive impairment.

Conflict of interest statement

Disclosure The authors report no conflicts of interest in this work.

Figures

Figure 1
Figure 1
Patient disposition during the trial.

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