Increasing Lower Extremity Muscle Strength and the Speed of Sit-to-Stand by Using a Motor Imagery Control Combined with Exercise Program in Older Adults: An EEG Study

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บุญรัตน์ โง้วตระกูล
เสรี ชัดแช้ม
ปรัชญา แก้วแก่น


                   The purposes of this research were to increase lower extremity muscle strength and the speed of sit-to-stand by using a Motor Imagery Control Combined with Exercise Program (MICE) compared with a control group who received the General Exercise Program (GE). The participants were fortyeight female older adults aged 60-74 years, were randomly assigned to an experimental group (n=23) and the control group (n=25). A randomized pretest and posttest active control group design was applied in this study. The research instruments were MICE and GE programs, lower extremity muscle strength was measured by Hand-held dynamometer, speed of sit-to-stand was measured by Five Times Sit-to-Stand Test (FTSST) and Neuroscan system was used to collect signals of EEG. Data were analyzed by t-test.

                     The results revealed that: The experimental group had increased in muscle strength of lower extremity, improved speed of FTSST, and enhancement of %ERD (Event-related desynchronization) of alpha wave at the frontal lobe and the sensorimotor area during sit-to-stand imagery task (higher than the control group after training, p<.05). These fndings show that the MICE program can increase the muscle strength and the speed of sit-to-stand. This approach is an alternative program for exercising for older adults in addition to general exercise. Keywords: , muscle strength, sit-to-stand, electroencephalography

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