The goal of the project is to determine the extent to which indices of inflammatory biomarkers, cognition and mood, are influenced by a partnered, dance-based intervention vs control condition in African American (AA) female family caregivers, at high risk for Alzheimer's disease (AD).
The importance of informal family caregiving in Alzheimer's disease (AD) is well-established. African-American caregivers are most often middle aged adult children of AD patients (vs. spouses), women, and are at higher risk for chronic health problems. AD lifestyle interventions offer an alternative to medication, and are generally affordable, accessible, and adaptable to the lives of caregivers. To date, most non-pharmaceutical interventions have focused on exercise and nutrition, both of which have proven to be highly successful in conferring AD related benefits and decreasing AD risk. The goal of the project is to determine the extent to which indices of inflammatory biomarkers, cognition and mood, are influenced by a partnered, dance-based intervention vs control condition in African American (AA) female family caregivers, at high risk for Alzheimer's disease.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
50
20 improvisational, 90-minute adapted tango dance sessions over a 12-week period. Classes begin with a 20-minute standing warm-up followed by partnering and rhythmic exercises. Next, novel step elements are introduced and participants will be taught how to combine the new steps with previously learned steps via improvisation. Caregivers will dance with each other or undergraduate /graduate student volunteers. Music will be played throughout classes and artistic expression, i.e., attention to aesthetics, and improvisation, will be encouraged.
Participants will take part in at least 20 educational lectures offered twice per week over 12 weeks. Classes will also be 1.5 hours long and will involve lecture, partnered and group learning and extensive Q\&A will be encouraged.
Atlanta VA Medical Center, Emory University, Executive Park, Wesley Woods
Atlanta, Georgia, United States
Change in interleukin-7
45 mL blood will be acquired before and after the intervention to measure the inflammatory and stress marker levels
Time frame: Before and after the intervention / control at least 20 times during 12 weeks
Change in interleukin-8
45 mL blood will be acquired before and after the intervention to measure the inflammatory and stress marker levels
Time frame: Before and after the intervention / control at least 20 times during 12 weeks
Change in interleukin-9
45 mL blood will be acquired before and after the intervention to measure the inflammatory and stress marker levels
Time frame: Before and after the intervention / control at least 20 times during 12 weeks
Change in Interleukin-10
45 mL blood will be acquired before and after the intervention to measure the inflammatory and stress marker levels
Time frame: Before and after the intervention / control at least 20 times during 12 weeks
Change in interferon induced protein 10
45 mL blood will be acquired before and after the intervention to measure the inflammatory and stress marker levels
Time frame: Before and after the intervention / control at least 20 times during 12 weeks
Change in macrophage derived chemokine
45 mL blood will be acquired before and after the intervention to measure the inflammatory and stress marker levels
Time frame: Before and after the intervention / control at least 20 times during 12 weeks
Change in monocyte chemoattractant protein 1
45 mL blood will be acquired before and after the intervention to measure the inflammatory and stress marker levels
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Time frame: Before and after the intervention / control at least 20 times during 12 weeks
Change in transforming growth factor alpha
45 mL blood will be acquired before and after the intervention to measure the inflammatory and stress marker levels
Time frame: Before and after the intervention / control at least 20 times during 12 weeks
Change in tumor necrosis factor alpha
45 mL blood will be acquired before and after the intervention to measure the inflammatory and stress marker levels
Time frame: Before and after the intervention / control at least 20 times during 12 weeks
Change in C-reactive protein
45 mL blood will be acquired before and after the intervention to measure the inflammatory and stress marker levels
Time frame: Before and after the intervention / control at least 20 times during 12 weeks
Change in serum amyloid protein
45 mL blood will be acquired before and after the intervention to measure the inflammatory and stress marker levels
Time frame: Before and after the intervention / control at least 20 times during 12 weeks
Change in Montreal Cognitive Assessment (MoCA)
The MoCA test is a 30-point test that assesses several cognitive domains. The short-term memory recall task (5 points) ; Visuospatial abilities are assessed using a clock-drawing task (3 points) and a three-dimensional cube copy (1 point); executive functions are assessed using an alternation task adapted from the trail-making B task (1 point), a phonemic fluency task (1 point), and a two-item verbal abstraction task (2 points). Attention, concentration and working memory are evaluated using a attention task (target detection using tapping; 1 point), a serial subtraction task (3 points), and digits forward and backward (1 point each). Language is assessed using a confrontation naming task with low-familiarity animals (3 points), repetition of two syntactically complex sentences (2 points), and the aforementioned fluency task. Finally, orientation to time and place is evaluated (6 points).
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in the Tower of London test
The Tower of London test is used for the assessment of executive functioning specifically to detect deficits in planning. It is related to the classic problem-solving puzzle known as the Tower of Hanoi.The test consists of two boards with pegs and several beads with different colors. The examiner uses the beads and the boards to present the examinee with problem-solving tasks. The performance of the examinee is compared to representative samples of individuals of the same age to derive hypotheses about the person's executive cognitive ability.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in the Stroop interference test
The Stroop test is to name the color in which a word is printed, ignoring the word itself. The Stroop Test is used to assess the ability to inhibit cognitive interference that occurs when the processing of a specific stimulus feature impedes the imultaneous processing of a second stimulus attribute, well-known as the Stroop Effect. Total time needed for each card is the outcome variable.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in Trails B test
Trail Test is a neuropsychological test of visual attention and task switching. It consists of two parts in which the subject is instructed to connect a set of 25 dots as quickly as possible while still maintaining accuracy. The time taken to complete the test is used as the primary performance metric.The test is sensitive to detecting cognitive impairment.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in Digit Span test
The Digit Span test is either conducted verbally or using a computer program. A sequence of numbers is shown or read out to the participant. The participant is then told to repeat the numbers that were shown or read to them. This process continues until the participant can no longer remember either the full sequence of numbers or the correct order.The Digit Span test is scored by the amount of numbers the participant was able to remember in each test. The scorer must add the total number of correct sequences, backwards and forwards.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in Buschke Selective Reminding Test
The Buschke Selective Reminding Test (SRT) is a test designed to measure verbal learning and memory through the use of a list-learning procedure over multiple trials. The adult SRT involves reading the subject a list of 12 unrelated words and then having the subject immediately recall as many of these 12 words as possible. Every trial after the first involves selectively presenting only those words in which the subject did not recall on the immediately preceding trial. The selective reminding trials proceed in this manner until the subject is able to correctly recall all 12 words on three consecutive trials, or until 12 trials have been completed. Scoring of the test has been automated according the instructions of Buschke.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in Reverse Corsi Blocks test
The Corsi block-tapping test is a psychological test that assesses visuo-spatial short term working memory. It involves mimicking a researcher as he/she taps a sequence of up to nine identical spatially separated blocks. The sequence starts out simple, usually using two blocks, but becomes more complex until the subject's performance suffers. This number is known as the Corsi Span, and averages about 5 for normal human subjects.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in Brooks spatial memory test
Brooks spatial memory task (BSMT): In the BSMT, the participant visualizes a 4x4 matrix in which the location of numbers 1 through 8 is described. Participants practice with 3 instructions and progress up to 8 instructions. All levels are completed regardless of errors. Percentages correct (out of 50) will be used for analysis.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in the Body position spatial task (BPST)
Body position spatial task (BPST) measures whole body knowledge of spatial position and ability to navigate in a remembered path. The examiner verbally and visually demonstrates combinations of 5 possible moves: step forward, step left, step right, quarter turn left, and quarter turn right. The examiner begins with 2 moves and progresses up to 9 moves, with 2 trials per level. Participants continue to the next level if one trial is correctly performed. The test ends when participants miss both trials of a level. Span length and number of correct trials are variables.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in Fullerton Advanced Balance Scale
The Fullerton Test is mainly intended to identify highly-active older adults who are at an increased risk to experience fall-related injuries due to sensory impairments. The test uses both dynamic and static balance under different situations to identify balance deficits in older adults. The test includes the following: 10 performance based activities in both static and dynamic phases; Score of 0-40/40 points possible (higher scores are better); tems scored on a 5 point ordinal scale (0-4).
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in 30-second chair stand
The 30 second chair test is administered using a folding chair without arms, with seat height of 17 inches (43.2 cm). The 30 second chair stand involves recording the number of stands a person can complete in 30 seconds.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in gait speed
Assesses walking speed in meters per second over a short duration . The individual is instructed to walk a set distance (6 meters, 10 meters, etc). Time is measured while the individual walks the set distance (often the individual is given space to accelerate to his/her preferred walking speed (this distance is not included when determining speed). The distance covered is divided by the time it took the individual to walk that distance.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in Positive Aspects of Caregiving (PAC) Scale
The 9-item PAC scale will be administered to the caregivers. Each item is scored on a 5-point Likert scale: disagree a lot (1), disagree a little (2), neither agree nor disagree (3), agree a little (4), and agree a lot (5). The overall PAC score, comprising all nine items, ranges from 9 to 45-a higher score reflects a more positive perception of the caregiving experience.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in Pearlin Caregiver Stress Scale
Pearlin Caregiver Stress Scale topics include primary stressors (cognitive status, problematic behavior, overload, relational deprivation), secondary role strains family conflict, job-caregiving conflict, economic strains), secondary instrapsychic strains (role captivity, loss of self, caregiving competence, personal gain) and mediators (management of situation, management of meaning, management of distress, expressive support). Fifteen 3-point to 5-point scales.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in the Zarit Burden Interview
The Zarit Burden Interview, a caregiver self-report measure is a 22-item self-report inventory that examines burden associated with functional/behavioral impairments and the home care situation. Each question is scored on a 5 point Likert scale ranging from 0 (Never) to 4 (Nearly Always).. Total scores range from 0 (low burden) to 88 (high burden).
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in the Center for Epidemiologic Studies Depression Scale (CES-D)
The CESD-R is a screening test for depression and depressive disorder. The 20 items in CESDR scale measure symptoms of depression in nine different groups as defined by the American Psychiatric Association. The response values for each question are: Not at all or less than one day = 0 1-2 days = 1 3-4 days = 2 5-7 days = 3 Nearly every day for 2 weeks = 4 The Total CESD-R Score is calculated as a sum of responses to all 20 questions.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks
Change in DEMQOL: Dementia Quality of Life measure (Carer v4)
DEMQOL is a 29-item scale, plus one global item ("Overall, how would you rate your quality of life?") that measures 5 domains of QOL: Positive Affect (6 items), Negative Affect (11 items), Feelings of Belonging (3 items), Self-esteem (4 items), and Sense of Aesthetics (5 items). The DQoL yields scores on 5 subscales but subscale scores are not summed to reach an overall or global measure of QOL.
Time frame: Before and after the intervention / control, offered twice per week, at least 20 times during 12 weeks