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

NCT05719571 | Completed DMC

• 1 other identifier: REC/00777 Komal
• Study Type: observational
• Target: 50
• Locations: 1 country
• Sites: 1

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.

Conditions

Healthy

Outcome Measures

Primary Outcomes (8)

• PAR Scale

  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.

  1 Day

• Pulse Rate

  Beat per minute it is measured through Pulse Oximeter

  1 Day

• Oxygen Saturation

  It is measured in percentage of Oxygen in tissue, measured through Pulse oximeter

  1 Day

• One Mile Walk Test

  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

  1 Day

• VO2max Aerobic Capacity Calculator

  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

  1 Day

• Non-Exercise Regression Equation

  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

  1 Day

• Metabolic Equations

  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

  1 Day

• Modified Bruce protocol

  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

  1 Day

Eligibility Criteria

• Age: 18 Years - 35 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

study design was Analytical (Correlational) study design. During the first visit, First of all, 'true' VO2max of all subjects was calculated using 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.

You may qualify if:

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

You may not qualify if:

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

Sponsors & Collaborators

• Riphah International University: lead

Study Sites (1)

Railway General Hospital, Pakistan

Rawalpindi, Punjab Province, 46000, Pakistan

Location

Study Officials

• Anam Aftab, PPDPT

  Riphah International University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: January 31, 2023
• First Posted: February 9, 2023
• Study Start: August 18, 2020
• Primary Completion: October 31, 2020
• Study Completion: October 31, 2020
• Last Updated: February 9, 2023

Record last verified: 2023-01

Data Sharing

• IPD Sharing: Will not share

Locations

PA (1)