The beneficial effect of a a short term combination exercise training on a widely cognitive function in the healthy elderly

INTERVENTION: The intervention group participate in a combination exersice intervention in 4 weeks. The wait listed group does not participate in the intervention. CONDITION: The healthy elderly PRIMARY OUTCOME: Stroop Test (ST) SECONDARY OUTCOME: Verbal fluency task (VFT); Logical Memory (LM); First and Second Names (FS‐N); Digit Span Forward (DS‐F); Digit span Backward (DS‐B); Japanese Reading Test (JART); Digit Cancellation Task (D‐CAT); Digit Symbol Coding (Cd); Symbol Search (SS) INCLUSION CRITERIA: We include participants who will report to be right‐handed, native Japanese speakers, not concerned about their own memory functions, not using medications known to interfere with cognitive functions (including benzodiazepines, antidepressants or other central nervous agents), and having no diseases known to affect the central nervous system, including thyroid disease, multiple sclerosis, Parkinson's disease, stroke, severe hypertension or diabetes.