Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Blood Pressure |
Resting systolic and diastolic blood pressure |
Baseline |
|
Primary |
Waist Circumference |
Circumference of the waist measured by tape measure at the level of the iliac crest |
Baseline |
|
Primary |
Fasting blood glucose |
Blood glucose collected from capillary blood |
Baseline |
|
Primary |
Blood lipids |
Triglycerides, total cholesterol, high-density lipoprotein cholesterol, and low-density lipoprotein cholesterol collected from capillary blood |
Baseline |
|
Primary |
Metabolic syndrome severity score |
A race and sex-specific equation that uses systolic blood pressure, waist circumference, and blood lipids to calculate a single continuous score that quantifies a person's overall cardiometabolic disease severity on a continuum where higher scores equal a worse outcome and negative scores equal a better outcome. The scale does not have bound and is infinite in positive and negative directions. |
Baseline |
|
Primary |
Insulin |
Insulin collected from intravenous blood |
Baseline |
|
Primary |
Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) |
Equation that estimates insulin resistance from glucose and insulin measurements |
Baseline |
|
Primary |
Tumor necrosis factor-alpha |
Common biomarker of systemic inflammation collected from intravenous blood |
Baseline |
|
Primary |
Body fat percentage |
The percentage of body fat estimated using smartphone-based digital imaging |
Baseline |
|
Primary |
Fat mass |
The weight of fat mass in kilograms estimated using smartphone-based digital imaging |
Baseline |
|
Primary |
Fat-free mass |
The weight of fat-free mass in kilograms estimated using smartphone-based digital imaging |
Baseline |
|
Primary |
Body circumferences |
Central (trunk) and segmental (arms and legs) circumference estimated using smartphone-based digital imaging |
Baseline |
|
Primary |
Heart Rate Variability |
Index of cardiac autonomic control collected via one-lead electrocardiogram |
Baseline |
|
Primary |
Cardiac Baroreflex Sensitivity |
Measure of parasympathetic and sympathetic regulation collected via one-lead electrocardiogram and finger photoplethysmography |
Baseline |
|
Primary |
Flow-mediated changes in vascular diameter |
Changes in vascular diameter during 5 minutes of post-occlusive reactive hyperemia collected via duplex Doppler ultrasound |
Baseline |
|
Primary |
Flow-mediated changes in blood flow |
Changes in blood flow during 5 minutes of post-occlusive reactive hyperemia collected via duplex Doppler ultrasound |
Baseline |
|
Primary |
Flow-mediated changes in blood pressure |
Changes in blood pressure during 5 minutes of post-occlusive reactive hyperemia collected via finger photoplethysmography |
Baseline |
|
Primary |
Flow-mediated changes in vascular conductance |
Changes in vascular conductance during 5 minutes of post-occlusive reactive hyperemia calculated as flow per unit of blood pressure |
Baseline |
|
Primary |
Flow-mediated changes in vascular resistance |
Changes in vascular resistance during 5 minutes of post-occlusive reactive hyperemia calculated as blood pressure per unit of flow |
Baseline |
|
Primary |
Flow-mediated changes in skeletal muscle oxygenation |
Changes in skeletal muscle oxygenated/deoxygenated hemoglobin saturation during 5 minutes of post-occlusive reactive hyperemia collected via near-infrared spectroscopy |
Baseline |
|
Primary |
Passive Limb Movement Mediated Changes in Vascular Diameter |
Changes in vascular diameter during passive limb movement collected via duplex Doppler ultrasound |
Baseline |
|
Primary |
Passive Limb Movement Mediated Changes in Blood Flow |
Changes in blood flow during passive limb movement collected via duplex Doppler ultrasound |
Baseline |
|
Primary |
Passive Limb Movement Mediated Changes in Blood Pressure |
Changes in blood pressure during passive limb movement collected via finger photoplethysmography |
Baseline |
|
Primary |
Passive Limb Movement Mediated Changes in Vascular Conductance |
Changes in vascular conductance during passive limb movement calculated as flow per unit of pressure |
Baseline |
|
Primary |
Passive Limb Movement Mediated Changes in Vascular Resistance |
Changes in vascular resistance during passive limb movement calculated as the pressure per unit of flow |
Baseline |
|
Primary |
Passive Limb Movement Mediated Changes in Skeletal Muscle Oxygenation |
Changes in skeletal muscle oxygenation during passive limb movement collected via near-infrared spectroscopy |
Baseline |
|
Primary |
Carotid-Femoral Pulse Wave Velocity |
Index of arterial stiffness collected during rest collected via applanation tonometry and auscultation based wave analysis |
Baseline |
|
Primary |
Cold Pressor Test Blood Pressure Responses |
Changes in blood pressure during three minutes of cold-pressor activation collected via finger photoplethysmography |
Baseline |
|
Primary |
Cold Pressor Test Heart Rate Responses |
Changes in heart rate during three minutes of cold-pressor activation collected via one-lead electrocardiogram |
Baseline |
|
Primary |
Cold Pressor Test Vascular Conductance Responses |
Changes in vascular conductance during three minutes of cold-pressor activation calculated as flow per unit of pressure |
Baseline |
|
Primary |
Cold Pressor Test Vascular Resistance Responses |
Changes in vascular resistance during three minutes of cold-pressor activation calculated as pressure per unit of flow |
Baseline |
|
Primary |
Cold Pressor Test stroke volume Responses |
Changes in stroke volume during three minutes of cold-pressor activation collected via finger photoplethysmography or duplex Doppler ultrasound |
Baseline |
|
Primary |
Cold Pressor Test Cardiac Output Responses |
Changes in cardiac output during three minutes of cold-pressor activation collected via finger photoplethysmography or duplex Doppler ultrasound |
Baseline |
|
Primary |
Metaboreflex Blood Pressure Responses |
Changes in blood pressure during rhythmic handgrip exercise with graded blood flow restriction (minutes 0, 2, 4, 6, and 8) collected via finger photoplethysmography |
Baseline |
|
Primary |
Metaboreflex Heart Rate Responses |
Changes in heart rate during rhythmic handgrip exercise with graded blood flow restriction (minutes 0, 2, 4, 6, and 8) collected via one-lead electrocardiogram |
Baseline |
|
Primary |
Metaboreflex Vascular Conductance Responses |
Changes in vascular conductance during rhythmic handgrip exercise with graded blood flow restriction (minutes 0, 2, 4, 6, and 8) calculated as flow per unit of pressure |
Baseline |
|
Primary |
Metaboreflex Vascular Resistance Responses |
Changes in vascular resistance during rhythmic handgrip exercise with graded blood flow restriction (minutes 0, 2, 4, 6, and 8) calculated as pressure per unit of flow |
Baseline |
|
Primary |
Metaboreflex Stroke Volume Responses |
Changes in stroke volume during rhythmic handgrip exercise with graded blood flow restriction (minutes 0, 2, 4, 6, and 8) collected via finger photoplethysmography or duplex Doppler ultrasound |
Baseline |
|
Primary |
Metaboreflex Cardiac Output Responses |
Changes in cardiac output during rhythmic handgrip exercise with graded blood flow restriction (minutes 0, 2, 4, 6, and 8) collected via finger photoplethysmography or duplex Doppler ultrasound |
Baseline |
|
Primary |
Functional Sympatholysis Blood Flow Responses |
Changes in limb blood flow during three minutes of cold-pressor activation with superimposed rhythmic handgrip exercise Collected via finger photoplethysmography |
Baseline |
|
Primary |
Functional Sympatholysis Vascular Conductance Responses |
Changes in vascular conductance during three minutes of cold-pressor activation with superimposed rhythmic handgrip exercise calculated as flow per unit of pressure |
Baseline |
|
Primary |
Functional Sympatholysis Vascular Resistance Responses |
Changes in vascular resistance during three minutes of cold-pressor activation with superimposed rhythmic handgrip exercise Calculated as pressure per unit of flow |
Baseline |
|
Primary |
Functional Sympatholysis Blood Pressure Responses |
Changes in blood pressure during three minutes of cold-pressor activation with superimposed rhythmic handgrip exercise collected via finger photoplethysmography |
Baseline |
|
Primary |
Gait velocity |
Self-selected walking velocity over level ground measured with a timing gate system. |
Baseline |
|
Primary |
Gait velocity |
Self-selected walking velocity over level ground measured with a timing gate system. |
Immediately post 6-minute walk test |
|
Primary |
Stride Length |
Length of stride, measured as the lateral distance between feet during walking measured with a motion capture system. |
Baseline |
|
Primary |
Stride Length |
Length of stride, measured as the lateral distance between feet during walking measured with a motion capture system. |
Immediately post 6-minute walk test |
|
Primary |
Stride Width |
Width of stride, measured as the lateral distance between feet during walking measured with a motion capture system. |
Baseline |
|
Primary |
Stride Width |
Width of stride, measured as the lateral distance between feet during walking measured with a motion capture system. |
Immediately post 6-minute walk test |
|
Primary |
Gait Cadence |
Steps taken per minute measured with a motion capture system. |
Baseline |
|
Primary |
Gait Cadence |
Steps taken per minute measured with a motion capture system. |
Immediately post 6-minute walk test |
|
Primary |
Ankle joint angle |
Ankle angle during level ground walking measured in degrees measured with a motion capture system. |
Baseline |
|
Primary |
Ankle joint moment |
Ankle moment during level ground walking measured in newton-meters measured with a motion capture system. |
Baseline |
|
Primary |
Ankle joint angle |
Ankle angle during level ground walking measured in degrees measured with a motion capture system. |
Immediately post 6-minute walk test |
|
Primary |
Ankle joint moment |
Ankle moment during level ground walking measured in newton-meters measured with a motion capture system. |
Immediately post 6-minute walk test |
|
Primary |
Knee joint angle |
Knee angle during level ground walking measured in degrees measured with a motion capture system. |
Baseline |
|
Primary |
Knee joint moment |
Knee moment during level ground walking measured in newton-meters measured with a motion capture system. |
Baseline |
|
Primary |
Knee joint angle |
Knee angle during level ground walking measured in degrees measured with a motion capture system. |
Immediately post 6-minute walk test |
|
Primary |
Knee joint moment |
Knee moment during level ground walking measured in newton-meters measured with a motion capture system. |
Immediately post 6-minute walk test |
|
Primary |
Hip joint angle |
Hip angle during level ground walking measured in degrees measured with a motion capture system. |
Baseline |
|
Primary |
Hip joint moment |
Hip moment during level ground walking measured in newton-meters measured with a motion capture system. |
Baseline |
|
Primary |
Hip joint angle |
Hip angle during level ground walking measured in degrees measured with a motion capture system. |
Immediately post 6-minute walk test |
|
Primary |
Hip joint moment |
Hip moment during level ground walking measured in newton-meters measured with a motion capture system. |
Immediately post 6-minute walk test |
|
Primary |
Ground reaction forces |
Three-dimensional ground reaction forces during level ground walking measured with a motion capture system. |
Baseline |
|
Primary |
Ground reaction forces |
Three-dimensional ground reaction forces during level ground walking measured with a motion capture system. |
Immediately post 6-minute walk test |
|
Primary |
Center of pressure - right leg |
Whole body center of pressure displacement |
Baseline |
|
Primary |
Center of pressure - left leg |
Whole body center of pressure displacement |
Baseline |
|
Primary |
Center of pressure - bilateral |
Whole body center of pressure displacement |
Baseline |
|
Primary |
Timed-up and go |
Time (seconds) for participant to stand up from chair, walk 3 meters, and return |
Baseline |
|
Primary |
Sit-to-stand |
Time (seconds) for participant to stand up from chair and sit back down (5 repetitions) |
Baseline |
|
Primary |
Time Up and Down Stairs |
Time (seconds) for participant to stand ascend and descend a single flight (10 steps) of stairs |
Baseline |
|
Primary |
Isometric strength |
Isometric muscle strength of hip flexors and extensors, knee flexors and extensors, and ankle dorsi- and plantar flexors of the right leg |
Baseline |
|
Primary |
Visceral adipose tissue |
Absolute fat-mass around the visceral organs in kilograms measured using dual-energy x-ray absorptiometry. |
Baseline |
|
Primary |
Subcutaneous adipose tissue |
Absolute fat-mass under the cutaneous layer of the skin in kilograms measured using dual-energy x-ray absorptiometry |
Baseline |
|
Primary |
Motivation and Attitudes Towards Health |
Motivation and Attitudes Towards Changing Health Scale. Scores range from 5-45, which higher scores indicating higher motivation and more positive attitudes towards changing health behavior |
Baseline |
|
Primary |
Readiness for Behavior Change |
Readiness for Change Questionnaire. Separate subscales are calculated for each of the 5 stages of change (pre-contemplation, contemplation, preparation, action, maintenance) with higher scores indicating a greater likelihood of an individual being in that stage of change versus another. The 12 items on this scale are scored on a scale of -2 to +2 (-2 = Strongly disagree, -1 Disagree, 0 = Unsure, +1 = Agree, +2 = Strongly Agree). |
Baseline |
|
Primary |
Treatment Seeking Behavior |
Whether participant engages with educational webpage about health behavior change. This is a dichotomous yes/no value based on whether someone clicks on the webpage or not. |
Baseline |
|
Secondary |
Height |
Height collected using a stadiometer |
Baseline |
|
Secondary |
Weight |
Weight collected using a stadiometer |
Baseline |
|