Healthy Young AdultsNCT06604741
High vs Low Volume Intensity Training With IMT On Pulmonary Function And Breathing Efficiency On Recreational Swimmers.
A study testing Assigned Interventions for LVIMT and Assigned interventions for HVIMT in people with Healthy Young Adults, run by Riphah International University at 1 site in Pakistan.
Trial summary
This study aims to evaluate the impact of inspiratory muscle training (IMT) on respiratory function and swimming performance in competitive swimmers. Given the importance of optimal respiratory function in swimming, this trial investigates whether IMT can improve swimming performance metrics, such as lap times and… Read more about this study
- Who is it for?
- Ages 18 to 24 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy Young Adults
- What is being tested?
- Assigned Interventions for LVIMT and Assigned interventions for HVIMT
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 64 participants
- Where
- 1 sitePakistan
- Study dates
- 1 May 2025to 30 Jun 2025
- Phase
- Interventional
- 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 18 to 24 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Male and Female Swimmers
- Age; 18-25
- Minimum of 2 years of regular swimming training experience, with at least 3 swimming sessions per week.
Who cannot join
- Refusal to participate in the study.
- History of respiratory or cardiovascular conditions that could impact participation or results.
- Participation in any other respiratory or exercise-related intervention study within the last 6 months.
- Consumption of any medications or supplements that could potentially influence respiratory or cardiovascular function.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Comparison of High Volume Intensity Training and Low Volume Intensity Training With IMT on Pulmonary Function and Breathing Efficiency of Recreational Swimmers
This study aims to evaluate the impact of inspiratory muscle training (IMT) on respiratory function and swimming performance in competitive swimmers. Given the importance of optimal respiratory function in swimming, this trial investigates whether IMT can improve swimming performance metrics, such as lap times and endurance, and overall respiratory health.
Read the detailed description
Effective respiratory function is crucial for swimmers, given the demanding nature of the sport. Inspiratory muscle training (IMT) has been shown to improve respiratory muscle strength and endurance in various populations. This study aims to explore the effects of IMT specifically on competitive swimmers, assessing both physiological and performance-related outcomes. To assess whether a structured IMT program improves swimming performance, respiratory muscle strength, and overall respiratory efficiency in recreational swimmers. A randomized controlled trial involving 56 competitive swimmers will be conducted. The study duration will be 8 weeks, with assessments conducted at baseline, mid-point, and at the end of the intervention. The IMT groups will participate in a 20-30 minute training session, 4 to 5 times per week, using power breath device . The training will focus on enhancing inspiratory muscle strength and endurance. This study aims to provide robust evidence on the benefits of IMT for swimmers, potentially informing future training practices and enhancing competitive performance.
- Conditions
- Healthy Young Adults
- Being tested
- Assigned Interventions for LVIMT, Assigned interventions for HVIMT
- Keywords
- Inspiratory muscle training, High volume intensity training, Low volume intensity training, Swimmers
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Assigned Interventions for LVIMTOther
IMT is a form of exercise designed to strengthen the muscle involved inhalation, primarily the diaphragm and intercostal muscles.
The LVIMT group will perform IMT once daily, 5 days a week, maintaining 60% of maximal inspiratory pressure (MIP) throughout the 6-week intervention.
The intervals are typically longer in duration (e.g., 2-4 minutes) with a work-to-rest ratio of 1:1 or 1:0.5.
POSITION: rested and seated position. FREQUENCY: more frequency, once a day. 2-3 sessions per week. INTENSITY: Low resistance. Only 60%% MIP. TIME: shorter duration of 10-20 mint.
Assigned interventions for HVIMTOther
The HVIMT group is trained twice daily, with the morning session matching the LV-IMT protocol, and an additional afternoon session. The HVIMT group also experienced a progressive increase in intensity, starting at 60% MIP and reaching 80% by the end of the study. LVIMT works for beginner or individuals with limited respiratory capacity while HVIMT is used for individual with high baseline respiratory fitness.
The intervals are typically shorter in duration (e.g., 30 seconds to 2 minutes) with a work-to-rest ratio of 1:1 or 1:2.
POSITION; Seated upright position. FREQUENCY: more frequency two session per week. 4-5 sessions per week. INTENSITY: high resistance. 60%-80% MIP.
(gradual increment the load by 10% every 2 weeks to reach 80% MIP)
TIME: longer duration 20-30 mint.
| Study group | Role | What they receive |
|---|---|---|
| High volume intensity (HVIMT) | Experimental | High-volume intensity inspiratory muscle training (IMT) is a therapeutic approach designed to improve respiratory muscle strength and endurance. In this clinical trial, participants will engage in a structured regimen of inspiratory exercises with high resistance and significant repetition volume.
Participants will perform inspiratory muscle exercises using power breath that provides high resistance, with a focus on both intensity and volume. The protocol involves 3 sessions per day for 6 weeks. Receives: Other: Assigned interventions for HVIMT |
| Low volume intensity LVIMT | Experimental | Participants will engage in a structured training program involving inspiratory muscle exercises with high resistance and a high volume of repetitions. The regimen includes multiple sessions per day over several weeks, using specialized inspiratory muscle training devices.
Changes in inspiratory muscle strength (measured by maximal inspiratory pressure) and endurance. Receives: Other: Assigned Interventions for LVIMT |
What is being measured
The primary outcome is the main question the study is designed to answer.
Peak Expiratory Flow Rate (PEFR)
Peak expiratory flow rate (PEFR) Peak expiratory flow rate (PEFR) measured through digital spirometer. Peak Expiratory Flow Rate (PEFR) measured through digital spirometer. Three zones of measurement are commonly used to interpret peak flow rates. Normal value of PEFR is (80-100%). Green zone indicates 80 to 100 percent of the usual or normal peak flow reading, yellow zone indicates 50 to 79 percent of the usual or normal peak flow readings, and red zone indicates less than 50 percent of the usual or normal peak flow readings.
Measured: 6 weeks
Forced Vital Capacity (FVC)
Forced vital capacity (FVC) measured through digital spirometer. If the value of FVC is within 80% of the reference value, the results are considered normal.
Changes in FVC from baseline to 3rd week and after 6 weeks day of intervention will be assessed.
Measured: 6 weeks
Forced Expiratory volume in 1sec (FEV1)
Forced expiratory volume in 1sec (FEV1) measured through digital spirometer. If the value of FEV1 is within 80% of the reference value, the results are considered normal.
Measured: 6 weeks
Swimming efficiency (SWOLF) score
A SWOLF score is a metric used in swimming to assess efficiency. It combines the time it takes to swim a distance (in seconds) with the number of strokes taken to complete that distance.
Measured: 6 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Sep 2024
- Study start1 May 2025
- Primary completion30 Jun 2025
- Study completion30 Jun 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Healthy Young AdultsStudies of the same condition, open and under way.
- 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 64 participants (actual)
Sponsor and investigators
- Lead sponsor
- Riphah International University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Suman Sheraz, PhD, Principal investigator, Riphah International University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06604741
- Sponsor's protocol ID
- Sumayya Karim
- Status last verified
- Aug 2025
- First submitted
- 18 Sep 2024
- Last updated
- 19 Aug 2025
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 19 Aug 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of High Volume Intensity Training and Low Volume Intensity Training With IMT on Pulmonary Function and Breathing Efficiency of Recreational Swimmers
- ClinicalTrials.gov ID
- NCT06604741
- Acronym / sponsor ID
- Sumayya Karim
- Conditions
- Healthy Young Adults
- Keywords
- Inspiratory muscle training, High volume intensity training, Low volume intensity training, Swimmers
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 64 participants (actual)
- Lead sponsor
- Riphah International UniversityUniversity, hospital or other
- Study start
- 1 May 2025 (actual)
- Primary completion
- 30 Jun 2025 (actual)
- Study completion
- 30 Jun 2025 (actual)
- First posted
- 19 Sep 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.
This study aims to evaluate the impact of inspiratory muscle training (IMT) on respiratory function and swimming performance in competitive swimmers. Given the importance of optimal respiratory function in swimming, this trial investigates whether IMT can improve swimming performance metrics, such as lap times and endurance, and overall respiratory health.
Detailed description
Effective respiratory function is crucial for swimmers, given the demanding nature of the sport. Inspiratory muscle training (IMT) has been shown to improve respiratory muscle strength and endurance in various populations. This study aims to explore the effects of IMT specifically on competitive swimmers, assessing both physiological and performance-related outcomes. To assess whether a structured IMT program improves swimming performance, respiratory muscle strength, and overall respiratory efficiency in recreational swimmers. A randomized controlled trial involving 56 competitive swimmers will be conducted. The study duration will be 8 weeks, with assessments conducted at baseline, mid-point, and at the end of the intervention. The IMT groups will participate in a 20-30 minute training session, 4 to 5 times per week, using power breath device . The training will focus on enhancing inspiratory muscle strength and endurance. This study aims to provide robust evidence on the benefits of IMT for swimmers, potentially informing future training practices and enhancing competitive performance.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| High volume intensity (HVIMT) | Experimental | Other: Assigned interventions for HVIMTHigh-volume intensity inspiratory muscle training (IMT) is a therapeutic approach designed to improve respiratory muscle strength and endurance. In this clinical trial, participants will engage in a structured regimen of inspiratory exercises with high resistance and significant repetition volume. Participants will perform inspiratory muscle exercises using power breath that provides high resistance, with a focus on both intensity and volume. The protocol involves 3 sessions per day for 6 weeks. |
| Low volume intensity LVIMT | Experimental | Other: Assigned Interventions for LVIMTParticipants will engage in a structured training program involving inspiratory muscle exercises with high resistance and a high volume of repetitions. The regimen includes multiple sessions per day over several weeks, using specialized inspiratory muscle training devices. Changes in inspiratory muscle strength (measured by maximal inspiratory pressure) and endurance. |
Who may qualify
- Ages
- 18 to 24 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Male and Female Swimmers
- Age; 18-25
- Minimum of 2 years of regular swimming training experience, with at least 3 swimming sessions per week.
Key exclusion criteria (4 listed)
- Refusal to participate in the study.
- History of respiratory or cardiovascular conditions that could impact participation or results.
- Participation in any other respiratory or exercise-related intervention study within the last 6 months.
- Consumption of any medications or supplements that could potentially influence respiratory or cardiovascular function.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Assigned Interventions for LVIMTIMT is a form of exercise designed to strengthen the muscle involved inhalation, primarily the diaphragm and intercostal muscles. The LVIMT group will perform IMT once daily, 5 days a week, maintaining 60% of maximal inspiratory pressure (MIP) throughout the 6-week intervention. The intervals are typically longer in duration (e.g., 2-4 minutes) with a work-to-rest ratio of 1:1 or 1:0.5. POSITION: rested and seated position. FREQUENCY: more frequency, once a day. 2-3 sessions per week. INTENSITY: Low resistance. Only 60%% MIP. TIME: shorter duration of 10-20 mint. | Other | Low volume intensity LVIMT |
| Assigned interventions for HVIMTThe HVIMT group is trained twice daily, with the morning session matching the LV-IMT protocol, and an additional afternoon session. The HVIMT group also experienced a progressive increase in intensity, starting at 60% MIP and reaching 80% by the end of the study. LVIMT works for beginner or individuals with limited respiratory capacity while HVIMT is used for individual with high baseline respiratory fitness. The intervals are typically shorter in duration (e.g., 30 seconds to 2 minutes) with a work-to-rest ratio of 1:1 or 1:2. POSITION; Seated upright position. FREQUENCY: more frequency two session per week. 4-5 sessions per week. INTENSITY: high resistance. 60%-80% MIP. (gradual increment the load by 10% every 2 weeks to reach 80% MIP) TIME: longer duration 20-30 mint. | Other | High volume intensity (HVIMT) |
Primary outcome
Peak Expiratory Flow Rate (PEFR)
Time frame: 6 weeks
Peak expiratory flow rate (PEFR) Peak expiratory flow rate (PEFR) measured through digital spirometer. Peak Expiratory Flow Rate (PEFR) measured through digital spirometer. Three zones of measurement are commonly used to interpret peak flow rates. Normal value of PEFR is (80-100%). Green zone indicates 80 to 100 percent of the usual or normal peak flow reading, yellow zone indicates 50 to 79 percent of the usual or normal peak flow readings, and red zone indicates less than 50 percent of the usual or normal peak flow readings.
Forced Vital Capacity (FVC)
Time frame: 6 weeks
Forced vital capacity (FVC) measured through digital spirometer. If the value of FVC is within 80% of the reference value, the results are considered normal. Changes in FVC from baseline to 3rd week and after 6 weeks day of intervention will be assessed.
Forced Expiratory volume in 1sec (FEV1)
Time frame: 6 weeks
Forced expiratory volume in 1sec (FEV1) measured through digital spirometer. If the value of FEV1 is within 80% of the reference value, the results are considered normal.
Swimming efficiency (SWOLF) score
Time frame: 6 weeks
A SWOLF score is a metric used in swimming to assess efficiency. It combines the time it takes to swim a distance (in seconds) with the number of strokes taken to complete that distance.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Aug 2025.
- Individual participant dataSharing planned: No
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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.
Suman Sheraz, PhD principal investigator
Riphah International University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Assigned Interventions for LVIMT and Assigned interventions for HVIMT in people with Healthy Young Adults, run by Riphah International University at 1 site in Pakistan.
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 3 inclusion and 4 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: finished, as of the sponsor's last update on 19 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Pakistan. Whether a site is taking part right now should be confirmed with that site. See every site.
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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Peak Expiratory Flow Rate (PEFR) (time frame: 6 weeks). The study lists 4 primary outcomes in all. 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 19 Aug 2025.