Measurement of Maximal Oxygen Uptake (VO2max) Using Mankato Submaximal Exercise Test in Young Adults

Sponsor

Riphah International University (Other)

Overall Status

Completed

CT.gov ID

NCT05719571

Collaborator

(none)

Enrollment

Location

2.4

Actual Duration (Months)

20.6

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

To measure the maximal oxygen uptake (VO2max) using Mankato Submaximal Exercise test.
To correlate 'true' VO2max with Modified Bruce protocol and Mankato Submaximal Exercise Test.

Condition or Disease	Intervention/Treatment	Phase
Healthy

Detailed Description

First of all, 'true' VO2max of all subjects was calculated using non-exercise regression equation and one mile walk test. Variables used for the VO2max regression equation included BMI, age (years), gender (Male=1, Female=0) and physical activity rating scale. On the same visit, the subjects also performed one mile walk test. After the completion of test, pulse rate of subjects was calculated in beats per minute. The VO2max after the test was measured using the VO2max aerobic capacity calculator. Variables required were age, gender, weight, total time taken to complete test and pulse rate at test completion.

'True' VO2max accepted was the highest value obtained from non-exercise regression equation and one mile walk test On the 2nd visit, the participants performed Modified Bruce Submaximal Exercise test depending upon their fitness level and Mankato Submaximal Exercise test in counter balanced order with 30 minutes rest in between

Study Design

Study Type:

Observational

Actual Enrollment :

50 participants

Observational Model:

Other

Time Perspective:

Prospective

Official Title:

Measurement of Maximal Oxygen Uptake (VO2max) Using Mankato Submaximal Exercise Test in Young Adults

Actual Study Start Date :

Aug 18, 2020

Actual Primary Completion Date :

Oct 31, 2020

Actual Study Completion Date :

Oct 31, 2020

Outcome Measures

Primary Outcome Measures

PAR Scale [1 Day]
PAR scale is a self reported physical activity rating scale used for a healthy population. It describes the physical activity level of an individual from the last 6 months. It consists of scale from 0-15.
Pulse Rate [1 Day]
Beat per minute it is measured through Pulse Oximeter
Oxygen Saturation [1 Day]
It is measured in percentage of Oxygen in tissue, measured through Pulse oximeter
One Mile Walk Test [1 Day]
One mile walk test is also termed as Rockport Fitness Walking Test. The subject walk distance of 1 mile and take record of the time took to cover that distance. The subject's pulse rate is taken after the completion of test by pulse oximeter
VO2max Aerobic Capacity Calculator [1 Day]
VO2max aerobic capacity calculator is an online calculator used to measure VO2max. It calculates VO2max using the four most common methods which include, VO2max based on resting heart rate, VO2max based on one mile walk test, VO2max based on three minute step test and VO2max based on 1.5 mile walk or run test
Non-Exercise Regression Equation [1 Day]
Non-exercise regression equation is used for measuring VO2max based on non-exercise data. The variables required for the following equation are PAR scale, age, BMI and gender. VO2max (ml/kg/min) = 56.363 + 1.921 × PAR - 0.381 × Age - 0.754 × BMI + 10.987 × Gender
Metabolic Equations [1 Day]
ACSM metabolic equations are used for measuring VO2max. These metabolic equations are mentioned in ACSM's Guidelines for Exercise Testing and Prescription 2018. Following metabolic equations are used: Speak (m.min-1) = (VO2max - 3.5) ∕0.2 Running VO2max (ml/kg/min) = (0.1 × speed) + (1.8 × speed × grade) + 3.5 Walking VO2max (ml/kg/min) = (0.2 × speed) + (0.9 × speed × grade) + 3.5
Modified Bruce protocol [1 Day]
Modified Bruce protocol is a treadmill protocol and modified form of Bruce protocol with decreased increment in initial stages and then increasing the slope progressively. Following are the Modified Bruce protocol stages: Stage 0 = 1.7 mph at 0% Grade Stage 0.5 = 1.7 mph at 5% Grade Stage 1 = 1.7 mph at 10% Grade Stage 2 = 2.5 mph at 12% Grade Stage 3 = 3.4 mph at 14% Grade Stage 4 = 4.2 mph at 16% Grade Stage 5 = 5.0 mph at 18% Grade Stage 6 = 5.5 mph at 20% Grade Stage 7 = 6.0 mph at 22% Grade Stage 8 = 6.5 mph at 24% Grade

Eligibility Criteria

Criteria

Ages Eligible for Study:

18 Years to 35 Years

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Yes

Inclusion Criteria:

Male and female aged between 18-35 years
Individuals with normal BMI i.e. 18.5-24.9
Individuals with positive cardiovascular family history

Exclusion Criteria:

Subjects with any known cardiovascular & pulmonary disease
Subjects addicted to caffeine/ smoking
Subjects with any neuromuscular disability/deformity

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	Railway General Hospital, Pakistan	Rawalpindi	Punjab	Pakistan	46000

Sponsors and Collaborators

Riphah International University

Investigators

Principal Investigator: Anam Aftab, PPDPT, Riphah International University

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.

Responsible Party:

Riphah International University

ClinicalTrials.gov Identifier:

NCT05719571

Other Study ID Numbers:

REC/00777 Komal

First Posted:

Feb 9, 2023

Last Update Posted:

Feb 9, 2023

Last Verified:

Jan 1, 2023

Individual Participant Data (IPD) Sharing Statement:

Plan to Share IPD:

Studies a U.S. FDA-regulated Drug Product:

Studies a U.S. FDA-regulated Device Product:

Study Results

No Results Posted as of Feb 9, 2023