Assessmet of VO2max in ElderlyNCT06575608
Estimation of VO2Max Using Smartphone Application
An observational study of Assessmet of VO2max in Elderly, run by Cairo University.
Trial summary
The aim of this observational study Is to examine the validity of the Smartphone application (VO2max calculator) in calculating VO2max in elderly population. Research hypotheses: this study will test the following null hypothesis: (Vo2max calculator) application will not have criterion validity in estimating VO2max… Read more about this study
- Who is it for?
- Ages 65 to 75 yearsHealthy volunteers can take part
- Conditions the study is for
- Assessmet of VO2max in Elderly
- How many people
- 52 participants
- Where
- No sites listed yet
- Study dates
- May 2025to Dec 2025
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 65 to 75 years
- All sexes
- Healthy volunteers accepted
- Older adult
Study population: (52) Male and female participants will be recruited from the out clinic customers, and workers at the faculty of physical therapy Delta University at ELmansoura governorate.
Who may be able to join
- Elderly subjects aged from (65 to 75) years.
- BMI 18.5-29.9 kg/m2
- Answer (NO) to all of the questions in the Physical activity readiness questionnaire (PAR-Q)
- Do not have any absolute or relative contraindications for exercise testing according to the American Heart Association (AHA) statement.
Who cannot join
- Recent surgical conditions.
- Skeletal deformities.
- Blood pressure regulating medication intake.
- Any respiratory disorders.
- Back, hip, knee or ankle pain within last month.
- Any neurological or psychiatric conditions.
- Implanted pacemaker.
- Anemic patients.
Trial locations and contacts
No sites are listed yet.
About this study
Official title: Estimation of VO2Max Using Smartphone Application in Elderly: Validation Study
The aim of this observational study Is to examine the validity of the Smartphone application (VO2max calculator) in calculating VO2max in elderly population.
Research hypotheses:
this study will test the following null hypothesis: (Vo2max calculator) application will not have criterion validity in estimating VO2max values in the elderly population.
Research question:
Is the Smartphone application (VO2max calculator) considered a valid tool for estimating accurate values of VO2max in the elderly population in comparison to the golden standard method?
Read the detailed description
Although maximal oxygen consumption (VO2max) is growing in evidence as a powerful indicator of several health conditions it's rarely used in clinical practice due to the high expense, requirement of specialized equipment, and related risks of maximal exertion. So, we aim to develop a simpler method for estimating VO2max using modern smartphone technologies.
Method: participants of this study will be divided into 2 equal groups. The first group will perform a gold standard treadmill-based VO2max measurement and the other group will perform a smartphone based 1-mile walk test for VO2max estimation.
- Conditions
- Assessmet of VO2max in Elderly
- Keywords
- VO2MAX, Smartphone application, Elderly, cardiorespiratory fitness (CRF)
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| direct VO2max test group | Group A (n-26) will perform a direct VO2max test on the treadmill and vo2max will be calculated by the cardiopulmonary exercise testing (CPX) device Spirometry Medisoft Ergocart professional. | |
| 1-mile walk test group | Group B (n-26) will perform the 1 mile walk test and VO2 max will be calculated by the smartphone application VO2max calculator |
What is being measured
The primary outcome is the main question the study is designed to answer.
maximum oxygen consumption (VO2MAX)
The greatest amount of oxygen a person can take in from inspired air while performing dynamic exercise involving a large part of total muscle mass.
Measured: at the peak of exercise (peak VO2) over the final 30 seconds of exercise
Secondary outcomes (2)
Heart rate (HR)
the number of times your heart beats per minute.
Measured: at baseline one shot
The Borg rating of perceived exertion (RPE) scale
It is a subjective scale for estimating effort and exertion, breathlessness, and fatigue during physical work.
Measured: at baseline one shot
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Aug 2024
- Study startMay 2025 (estimated)
- Primary completionSep 2025 (estimated)
- Study completionDec 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Assessmet of VO2max in ElderlyStudies of the same condition, open and under way.
- More trials run by Cairo UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Cross-sectional
- Enrolment
- 52 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Cairo University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ghada Mohamed Abd El-satar Mohamed Said, Cairo University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06575608
- Sponsor's protocol ID
- P.T.REC/012/004899
- Status last verified
- Aug 2024
- First submitted
- 22 Aug 2024
- Last updated
- 3 Mar 2025
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 3 Mar 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Estimation of VO2Max Using Smartphone Application in Elderly: Validation Study
- ClinicalTrials.gov ID
- NCT06575608
- Acronym / sponsor ID
- P.T.REC/012/004899
- Conditions
- Assessmet of VO2max in Elderly
- Keywords
- VO2MAX, Smartphone application, Elderly, cardiorespiratory fitness (CRF)
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 52 participants (estimated)
- Lead sponsor
- Cairo UniversityUniversity, hospital or other
- Study start
- May 2025 (estimated)
- Primary completion
- Sep 2025 (estimated)
- Study completion
- Dec 2025 (estimated)
- First posted
- 28 Aug 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this observational study Is to examine the validity of the Smartphone application (VO2max calculator) in calculating VO2max in elderly population.
Research hypotheses:
this study will test the following null hypothesis: (Vo2max calculator) application will not have criterion validity in estimating VO2max values in the elderly population.
Research question:
Is the Smartphone application (VO2max calculator) considered a valid tool for estimating accurate values of VO2max in the elderly population in comparison to the golden standard method?
Detailed description
Although maximal oxygen consumption (VO2max) is growing in evidence as a powerful indicator of several health conditions it's rarely used in clinical practice due to the high expense, requirement of specialized equipment, and related risks of maximal exertion. So, we aim to develop a simpler method for estimating VO2max using modern smartphone technologies.
Method: participants of this study will be divided into 2 equal groups. The first group will perform a gold standard treadmill-based VO2max measurement and the other group will perform a smartphone based 1-mile walk test for VO2max estimation.
Study design
- Observational model
- Other
- Time perspective
- Cross-sectional
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| direct VO2max test group | – | –Group A (n-26) will perform a direct VO2max test on the treadmill and vo2max will be calculated by the cardiopulmonary exercise testing (CPX) device Spirometry Medisoft Ergocart professional. |
| 1-mile walk test group | – | –Group B (n-26) will perform the 1 mile walk test and VO2 max will be calculated by the smartphone application VO2max calculator |
Who may qualify
- Ages
- 65 to 75 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Older adult
- Study population
- (52) Male and female participants will be recruited from the out clinic customers, and workers at the faculty of physical therapy Delta University at ELmansoura governorate.
Key inclusion criteria (4 listed)
- Elderly subjects aged from (65 to 75) years.
- BMI 18.5-29.9 kg/m2
- Answer (NO) to all of the questions in the Physical activity readiness questionnaire (PAR-Q)
- Do not have any absolute or relative contraindications for exercise testing according to the American Heart Association (AHA) statement.
Key exclusion criteria (8 listed)
- Recent surgical conditions.
- Skeletal deformities.
- Blood pressure regulating medication intake.
- Any respiratory disorders.
- Back, hip, knee or ankle pain within last month.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
maximum oxygen consumption (VO2MAX)
Time frame: at the peak of exercise (peak VO2) over the final 30 seconds of exercise
The greatest amount of oxygen a person can take in from inspired air while performing dynamic exercise involving a large part of total muscle mass.
2 secondary outcomes
Heart rate (HR)
Time frame: at baseline one shot
The Borg rating of perceived exertion (RPE) scale
Time frame: at baseline one shot
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Mar 2025.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Questions about this trial
What is this clinical trial studying?
An observational study of Assessmet of VO2max in Elderly, run by Cairo University.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 3 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Ghada said, Bachelor (+201148571986, ghadasaid700@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
maximum oxygen consumption (VO2MAX) (time frame: at the peak of exercise (peak VO2) over the final 30 seconds of exercise). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Mar 2025.