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| ID | Type | Description | Link |
|---|---|---|---|
| FP00021633 | Other Grant/Funding Number | Robot Studios |
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| Name | Class |
|---|---|
| Robot Studios | UNKNOWN |
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The study will compare cognitive capacity, muscle utilization patterns, soft tissue seated pressure and caloric output during four seated conditions:
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Passive Comparator: Traditional Chair | No Intervention | Participant will sit in the traditional chair for the amount of time it takes them to read a scientific article. | |
| Passive Comparator: Exercise Chair | Placebo Comparator | Participant will sit in the exercise chair for the amount of time it takes them to read a scientific article. |
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| Experimental: Dynamic Leg Exercise in Exercise Chair | Experimental | Participant will sit in the exercise chair for the amount of time it takes them to read a scientific article while actively pushing down and releasing the foot operated lever as many times as possible. |
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| Experimental: Static Leg Exercise in Exercise Chair | Experimental | Participant will sit in the exercise chair for the amount of time it takes them to read a scientific article while actively pushing down and holding the foot operated lever. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Chaircise | Behavioral | A chair-based exercise program using a specialized chair with a foot lever that allows participants to lift their body weight. |
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| Measure | Description | Time Frame |
|---|---|---|
| Differences in cognitive performance among chair conditions as measured by the Psychomotor Vigilance Test in number of key depressions | Cognitive performance will be assessed using the 3-minute Psychomotor Vigilance Test (PVT). During the test, participants will press the space bar as quickly as possible in response to the appearance of a visual stimulus on a computer screen. Performance will be measured as the total number of valid responses recorded during the test. Higher values indicate greater alertness, sustained attention, and reaction speed. | Approximately 3 minutes |
| Executive function among chair conditions as measured by the Stroop Test using words counted. | Executive function will be assessed using the Stroop Test, a cognitive task requiring participants to respond to color word stimuli. The outcome will be measured by total words counted, reported as the number of words. | Approximately 5 minutes. |
| Executive function among chair conditions as measured by the Stroop Test using error rate. | Executive function will be assessed using the Stroop Test, a cognitive task requiring participants to respond to color word stimuli. The outcome will be measured by error rate, reported as the percentage of errors. | Approximately 5 minutes. |
| Muscle activity among chair conditions using electromyography | Muscle activity will be assessed using surface electromyography (EMG). Muscle activation will be quantified as EMG amplitude, measured in microvolts (µV) from EMG recordings. Higher values indicate greater muscle activity. | Approximately 45 minutes |
| Peak seated tissue pressure among chair conditions using a pressure sensitive mat | Seated tissue pressure will be assessed using a pressure-sensitive mat placed on the seat surface of each chair. Peak pressure will be recorded to quantify the highest pressure exerted at the seating interface during each chair condition, measured in kilopascals. Higher values indicate greater localized pressure on seated tissues. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Joseph Signorile J Joseph Signorile, PhD | Contact | 3058981458 | jsignorile@miami.edu | |
| Ethan J Elkins, MS | Contact | 3052844173 | exe453@miami.edu |
| Name | Affiliation | Role |
|---|---|---|
| Joseph J Signorile, PhD | University of Miami - Coral Gables Campus | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Laboratory of Neuromuscular Research and Active Aging | Recruiting | Coral Gables | Florida | 33146 | United States |
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| Approximately 15 minutes |
| Metabolic cost of sitting among the chair conditions using a portable oxygen consumption unit | Metabolic cost during sitting will be assessed under each chair condition using a portable indirect calorimetry device. Participants will wear a facemask that measures oxygen consumption (VO₂) and carbon dioxide production (VCO₂). These measurements will be used to estimate energy expenditure during the sitting period. Higher values indicate greater metabolic cost. | Approximately 25 minutes |