Estudo de planejamento experimental com avaliações pré e pós-intervenção, medindo os níveis cognitivo e depressivo por meio do teste de Pfeiffer e da escala de Yesavage, respectivamente. O programa foi aplicado por 12 semanas a idosos entre 68 e 90 anos de idade. A análise estatística foi baseada no teste não paramétrico de Wilcoxon para amostras pareadas e foi contrastada com sua versão paramétrica. O software estatístico R foi utilizado.

RESULTADOS:

Diferenças estatisticamente significantes foram obtidas no nível cognitivo (p < 0,05) e altamente significante (p < 0,001) no nível de depressão com ambos os testes (paramétrico e não paramétrico).

CONCLUSÃO:

Porque quase não existe evidência científica de programas de intervenções que integram a atividade física e tarefas cognitivas em chilenos idosos, um programa físico-cognitivo foi proposto como tratamento não farmacológico, fácil de implementar e de baixo custo, para beneficiar a sua saúde integral, melhorando significativamente os níveis cognitivos e depressivos de idosos institucionalizados.

PALAVRAS-CHAVE:
Atividade Física; Depressão; Deterioração Cognitiva; Dupla Tarefa; Idosos

	Unit 1 “Movement and awareness”	Unit 2 “Movement and memory”	Unit 3 “Movement and orientation”
Objective	Reeducate motricity and body awareness through exercises for strength and elongation.	Develop motricity, attention, and visual memory through exercises for strengthening the body scheme and balance.	Improve motricity, reasoning, quality of movement and sense of direction through exercises of coordination.
Number of sessions	12	12	12

Rating	Variable	Measuring instrument
X1	Cognitive level of EA before the intervention	Pfeiffer Test (from zero to ten points: 0-10)
X2	Level of depression of the EA before the intervention	Yesavage Scale (from zero to fifteen points: 0-15)
Y1	Cognitive level of the EA after the intervention	Pfeiffer Test (from zero to ten points: 0-10)
Y2	Depression level of the EA after the intervention	Yesavage Scale (from zero to fifteen points: 0-15)
Z	Age of EA	(in years)

Patient	Z	X1	Prior level of deterioration (Pfeiffer test)	X2	Post level of deterioration (Pfeiffer test)	Y1	Prior level of depression (Yesavage scale)	Y2	Post level of depression (Yesavage scale)
1	89	7	Moderate	2	Normal	10	Established	8	Light
2	77	6	Moderate	4	Light	3	Normal	0	Normal
3	80	5	Moderate	5	Moderate	12	Established	12	Established
4	90	10	Severe	5	Moderate	3	Normal	4	Normal
5	79	3	Light	1	Normal	8	Light	6	Light
6	90	3	Light	2	Normal	4	Normal	1	Normal
7	85	2	Normal	2	Normal	9	Light	5	Normal
8	82	2	Normal	1	Normal	3	Normal	2	Normal
9	70	2	Normal	1	Normal	3	Normal	2	Normal
10	68	0	Normal	0	Normal	8	Light	2	Normal

Variable	Mean	Standard deviation	Coefficient of variation	Coefficient of asymmetry	Coefficient of kurtosis
X1	4.0	2.981	74.5%	0.611	2.152
X2	2.3	1.767	76.8%	0.461	1.551
Y1	6.3	3.467	5.0%	0.263	1.258
Y2	4.2	3.676	87.5%	0.799	2.414
Z	81	7.846	9.7%	-0.324	1.609

Variable	Wilcoxon test	Student-t-test
D1 = X1 - Y1	W = 28; p-value = 0.0211 Alternative hypothesis: Median different from zero	T = 2.8465; degrees of freedom = 9; p-value = 0.0192 Alternative hypothesis: Mean different from zero Confidence interval of 95%: [0.3490; 3.0510] Sample mean of differences: 1.7
D2 = X2 - Y2	W = 43; p-value = 0.0172 Alternative hypothesis: Median different from zero	T = 3.2796; degrees of freedom = 9; p-value = 0.0095 Alternative hypothesis: Mean different from zero Confidence interval of 95%: [0.6515; 3.5485] Sample mean of differences: 2.1

Instructions for correction:
Questions 1 and 6	It will be considered correct only the exact day, month and year.
Question 2	Self-explained.
Question 3	It will be marked correct if there is some description of the place.
Question 4	It will be correct by confirming the phone number or full address
Question 5	It will be correct if it matches with the date of birth.
Question 7 and 8	It will be correct if they say the last name of the President.
Question 9	It will be correct if they say what is in the clinical record.
Question 10	It will be correct only if the whole series is correct (20-17-14-11-8-5-2).

Evaluation of the results
Number of mistakes	State
0-2	Normal (no cognitive deterioration)
3-4	Light cognitive deterioration
5-7	Moderate cognitive deterioration
8-10	Severe cognitive deterioration

Evaluation of the results
Points	State
0-5	Normal (without depression)
6-10	Moderate depression
11-15	Established depression

Associação Médica Brasileira R. São Carlos do Pinhal, 324, 01333-903 São Paulo SP - Brazil, Tel: +55 11 3178-6800, Fax: +55 11 3178-6816 - São Paulo - SP - Brazil
E-mail: ramb@amb.org.br

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[1] CORRESPONDING AUTHOR: Victor Leiva Email: victorleivasanchez@gmail.com URL: www.victorleiva.cl

1.	What day is today?	(+)	(-)
2.	What day of the week is today?
3.	What is this place or building called?
4.	What is your phone number? What is your address? (only if there is no telephone)
5.	How old are you?
6.	What is the date of your birth? (Month/Day/Year)
7.	Who is the current president of Chile?
8.	Who was the previous president?
9.	What is your mother's last name?
10.	Subtract 3 from 20 and continue to subtract 3 from each result until it is no longer possible to continue (20-17-14-11-8-5-2).
TOTAL OF MISTAKES

Are you satisfied with your life?	yes	NO
Have you noticed a decrease or lack of interest in many of previous interests or activities?	YES	no
Do you feel your life is empty?	YES	no
Do you often feel bored?	YES	no
Do you feel excited most of the time?	yes	NO
Do you worry or fear that something might happen?	YES	no
Do you feel happy most of the time?	yes	NO
Do you often feel helpless?	YES	no
Do you rather stay at home than go out and do new things?	YES	no
Do you feel you have more memory problems than other people your age?	YES	no
Do you believe it is wonderful to be alive?	yes	NO
Do you feel useless or despicable in your current state?	YES	no
Do you feel energized?	yes	NO
Do you find yourself hopeless about your current situation?	YES	no
Do you believe other people are, in general, better off than you are?	YES	no