Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Other |
Change in blood brain barrier (BBB) permeability |
BBB permeability will be operationally measured by using a recently developed neuroimaging technique that measures water exchange across the BBB using 3D diffusion-prepared arterial spin labelled perfusion MRI. |
Baseline and 12 weeks |
|
Other |
Change in brain morphology |
MRI (magnetic resonance imaging) will measure brain morphology including volume, area, cortical thickness, and shapes by a T1-weighted MPRAGE structural sequence. |
Baseline and 12 weeks |
|
Other |
Change in white matter structure |
MRI (magnetic resonance imaging) will measure white matter structure and lesions by diffusion weighted acquisition sequence. |
Baseline and 12 weeks |
|
Other |
Change in brain function |
MRI (magnetic resonance imaging) will measure brain function during resting state. Measures of brain activity and brain connectivity will be calculated. |
Baseline and 12 weeks |
|
Other |
Change in blood-based neurology biomarkers |
Blood samples will be used to determine plasmatic concentration of peripheral neurology biomarkers including brain-derived neurotrophic factor (BDNF), vascular endothelial growth factor (VEGF) and cathepsin B (CTSB), as well as novel neurodegenerative biomarkers based on new evidence up to the time of the analysis. |
Baseline and 12 weeks |
|
Other |
Change in saliva-based neurology biomarkers |
Saliva samples will be used to determine concentration of peripheral neurology biomarkers including brain-derived neurotrophic factor (BDNF), vascular endothelial growth factor (VEGF) and cathepsin B (CTSB), as well as novel neurodegenerative biomarkers based on new evidence up to the time of the analysis. |
Baseline and 12 weeks |
|
Other |
Hemodynamic vascular changes |
Hemodynamic vascular parameters will be measured using ultrasound echography (i.e. carotid intima-media thickness). |
Baseline and 12 weeks |
|
Other |
Hemodynamic cardiac changes |
Cardiac parameters will be measured using ultrasound echography (i.e. ejection fraction, cardiac volumes, and cardiac output) |
Baseline and 12 weeks |
|
Other |
Hemodynamic transcranial changes |
Hemodynamic transcranial parameters will be measured using ultrasound echography (i.e. Doppler diastolic-systolic velocity). |
Baseline and 12 weeks |
|
Other |
Change in general muscular strength |
The maximum isometric strength of the hand and forearm muscles measured with the handgrip test (Kg) will be used to determine general muscular strength. |
Baseline and 12 weeks |
|
Other |
Change in lower body muscular strength |
Muscular strength in lower body will be assessed using the chair stand test (number of repetitions). |
Baseline and 12 weeks |
|
Other |
Change in upper body muscular strength |
Muscular strength in upper body will be assessed using the arm curl test (number of repetitions). |
Baseline and 12 weeks |
|
Other |
Change in physical function |
Senior Fitness Test (including the 6-min walking test) will assess overall physical functioning and z-scores will be calculated. |
Baseline and 12 weeks |
|
Other |
Change in depression |
Depressive symptoms will be assessed using the Global Deterioration Scale, the Health Survey Short Form (SF-36) and the Hospital Anxiety and Depression Scale. |
Baseline and 12 weeks |
|
Other |
Change in anxiety |
Anxiety will be assessed using the Health Survey Short Form (SF-36) and the Hospital Anxiety and Depression Scale. |
Baseline and 12 weeks |
|
Other |
Change in stress outcomes |
Stress outcomes will be assessed using the Perceived Stress Scale. |
Baseline and 12 weeks |
|
Other |
Change in loneliness |
Loneliness will be assessed using the UCLA Loneliness Scale. |
Baseline and 12 weeks |
|
Other |
Change in self-esteem outcomes |
Self-esteem will be assessed using the Rosenberg Self-Esteem Scale. |
Baseline and 12 weeks |
|
Other |
Change in social support outcomes |
Social support will be assessed using the Social Provisions Scale. |
Baseline and 12 weeks |
|
Other |
Change in health-related quality of life |
Global, physical, and mental health-related quality of life will be self-reported using the Health Survey Short Form (SF-36), in which higher scores means a better health-related quality of life. |
Baseline and 12 weeks |
|
Other |
Change in physical activity |
Physical activity will be measured using the accelerometer Axivity AX, and a self-reported questionnaire based on the Global Physical Activity Questionnaire. |
Baseline and 12 weeks |
|
Other |
Change in sedentary behaviors |
Sedentary behaviors will be measured using the accelerometer Axivity AX, and a self-reported questionnaire based on the Global Physical Activity Questionnaire. |
Baseline and 12 weeks |
|
Other |
Change in sleep quality |
Sleep quality will be measured using the accelerometer Axivity AX, and using the Pittsburgh Sleep Quality Index. |
Baseline and 12 weeks |
|
Other |
Change in diet behaviors |
Diet behaviors will be self-reported using the 14-item Questionnaire of Mediterranean Diet Adherence (PREDIMED-14), and a self-reported question for supplements intake. |
Baseline and 12 weeks |
|
Other |
Change in body mass index |
Body mass index (BMI) will be assessed using a dual-energy x-ray absorptiometer (DXA) and a TANITA's Bioelectrical Impedance Analysis. Weight and height will be combined to report BMI in kg/m^2 |
Baseline and 12 weeks |
|
Other |
Change in lean mass |
Lean mass (kg) will be assessed using a dual-energy x-ray absorptiometer (DXA) and a TANITA's Bioelectrical Impedance Analysis. |
Baseline and 12 weeks |
|
Other |
Change in fat mass |
Fat mass (kg) will be assessed using a dual-energy x-ray absorptiometer (DXA) and a TANITA's Bioelectrical Impedance Analysis. |
Baseline and 12 weeks |
|
Other |
Change in bone mineral content and density |
Bone mineral content and density (z-score) will be assessed using a dual-energy x-ray absorptiometer (DXA). |
Baseline and 12 weeks |
|
Other |
Change in blood pressure |
Systolic and diastolic blood pressure will be assessed by a blood pressure monitor. Central blood pressure will be also analyzed using the SphygmoCor XCEL |
Baseline and 12 weeks |
|
Other |
Change in arterial stiffness |
Arterial stiffness will be assessed using the pulse wave analysis and pulse wave velocity determined by the SphygmoCor XCEL |
Baseline and 12 weeks |
|
Other |
Change in blood-based inflammatory biomarkers |
Blood samples will be used to determine plasmatic concentrations of inflammatory peripheral biomarkers including tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 beta (IL-1beta), glucose, insulin, HDL and LDL cholesterol. |
Baseline and 12 weeks |
|
Other |
Change in saliva-based inflammatory biomarkers |
Saliva samples will be used to determine saliva concentrations of inflammatory peripheral biomarkers including tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 beta (IL-1beta). |
Baseline and 12 weeks |
|
Other |
Change in blood-based cardiovascular biomarkers |
Blood samples will be used to determine plasmatic concentrations of cardiovascular peripheral biomarkers including glucose, insulin, HDL and LDL cholesterol. |
Baseline and 12 weeks |
|
Other |
Change in saliva-based cardiovascular biomarkers |
Saliva samples will be used to determine plasmatic concentrations of cardiovascular peripheral biomarkers including glucose, insulin, HDL and LDL cholesterol. |
Baseline and 12 weeks |
|
Other |
Change in epigenetics |
Blood samples will be stored for epigenetic analyses. |
Baseline and 12 weeks |
|
Other |
Change in gene expression |
Blood samples will be stored for genetic analyses, including APOE and BDNF genotypes. |
Baseline and 12 weeks |
|
Other |
Change in oral and gut microbiota |
Saliva and fecal samples will be used to determine oral and gut microbiota including the most representative phyla (i.e., firmicutes, bacteroidetes, and proteobacteria) |
Baseline and 12 weeks |
|
Primary |
Change in cerebral blood flow |
The main outcome is the change in global cerebral blood flow from baseline to 12 weeks. Cerebral blood flow will be measured using the magnetic resonance imaging technique of TGSE-pCASL (turbo gradient spin echo-pseudo continuous arterial spin labeling). Additionally, regional cerebral blood flow will be determined in a voxel-wise analysis to measure local perfusion. |
Baseline and 12 weeks |
|
Secondary |
Change cerebral vascularization |
Cerebral vascularization will be measured using the magnetic resonance angiography TOF (Time-of-flight angiography). |
Baseline and 12 weeks |
|
Secondary |
Change in executive function and general cognition |
A comprehensive neuropsychological battery will assess several domains of executive function: working memory, cognitive flexibility and inhibitory control, and an executive function score will be computed and used as main behavioral outcome . Additionally, the general cognition will be assessed by the MOCA (MONTREAL COGNITIVE ASSESSMENT) test. |
Baseline and 12 weeks |
|
Secondary |
Change in cardiorespiratory fitness |
Cardiorespiratory fitness will be assessed by a cardiorespiratory exercise test in a treadmill measuring gas exchange (treadmill time-to-exhaustion and VO2peak) |
Baseline and 12 weeks |
|