Healthy WomenNCT05777252
Effects of 16-Week Circuit Training in Healthy Women
A study testing Circuit Training in people with Healthy Women, run by Manisa Celal Bayar University at 2 sites in Turkey (Türkiye).
Trial summary
The aim of this study is to investigate the effects of 16-week CT on spine structure, trunk muscle endurance, and balance in healthy women. Read more about this study
- Who is it for?
- Ages 18 to 45 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Healthy Women
- What is being tested?
- Circuit Training
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 34 participants
- Where
- 2 sitesTurkey (Türkiye)
- Study dates
- 15 Mar 2023to 15 Jul 2023
- 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 45 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- volunteering to participate in study
- not have any systemic, neurological, or rheumatological disease
Who cannot join
- history of malignancy
- participating in another exercise training during the study
- using any medication that could affect the outcome of the study
- being pregnant
Trial locations and contacts
2 sites in 1 country.
Turkey (Türkiye)2 sites
Izmir Katip Celebi University
Izmir
İzmir Katip Celebi University
Izmir
About this study
Official title: Effects of 16-Week Circuit Training on Spine Structure, Trunk Muscle Endurance, and Balance in Healthy Women
The aim of this study is to investigate the effects of 16-week CT on spine structure, trunk muscle endurance, and balance in healthy women.
Read the detailed description
Circuit training (CT) was developed by Morgan and Anderson in 1953, and is a type of training that includes various exercise stations arranged in a certain order. During CT, each participant performs 8 to 20 repetitions of exercise at each station, usually in less than a minute. Also, each participant moves from one training station to another with short rest periods or without breaks, and ends a training session by completing all stations. This training includes exercises performed with only body weight without the use of any equipment or with ancillary equipment such as elastic bands, free weights, and exercise devices, or a combination of both types of exercise.
It is seen that CT, which is a method frequently preferred by individuals of all ages all over the world to improve or maintain both physical performance, and health-related fitness, is gaining popularity due to its practicality and efficiency in recent years. Especially, it has become an important exercise option for individuals who have the problem of 'not having enough time for exercise' in daily life. The fact that the intensity can be adjusted according to the individual participant, that it includes both aerobic exercises and strengthening and endurance exercises for the trunk, upper and lower extremity muscles, and that it aims to improve both the musculoskeletal and cardiovascular systems of the participants is an important factor that increases the preferability of this training in all populations. Also, it is reported that the inclusion of various types of exercise in this exercise training greatly reduces the rate of participants dropping out of this type of training or ending it completely compared to other types of training. Lastly, the main feature of this exercise training, which allows individual interaction both among the participants and between the participants and the sports or health professionals who provides this training, is that it includes a combination of different types of exercises in order to improve both the musculoskeletal, and cardiovascular systems.
In the literature, it was seen that studies investigating the effects of CT on trunk muscle endurance included different populations. However, there were few studies investigating the effects of CT on endurance of trunk muscles in healthy women. Also, it was seen that there was not enough evidence in the current literature about the effects of CT on the spine structure in healthy women. Especially, a possible increase in endurance of trunk muscles after training may also positively affect spine structure via the kinetic chain. Lastly, it was concluded that studies investigating the effects of CT on balance mostly included patients with neurological disorders or the youth population. A possible positive effects on the spine structure via the kinetic chain may improve balance by increasing neuromuscular control in healthy women. This issue needs detailed investigation.
Therefore, the aim of this study was to investigate the effects of 16-week CT on spine structure, trunk muscle endurance, and balance in healthy women. Also, the investigators hypothesized that the 16-week CT would be positive effects on spine structure, trunk muscle endurance, and balance in healthy women.
- Conditions
- Healthy Women
- Being tested
- Circuit Training
- Keywords
- Health status, Exercise, Spine, Physical fitness, Women
- Medical subject headings
- Motor Activity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Circuit TrainingOther
Warm-up and cool-down protocols will be applied before and after each CT, and each exercise will be performed as 15 repetitions and an average of 40 seconds of rest will be given between exercises. Also, the intensity of CT will be determined according to the Borg scale (between 11 and 14). CT will include 'mini squat', 'step up', 'sit ups', 'reverse sit ups', 'leg press', 'leg curl', 'leg extension', 'crunches', 'lunge', 'prone bridge', and 'side bridge' exercises.
| Study group | Role | What they receive |
|---|---|---|
| Training Group | Experimental | Circuit training will be applied to the participants for a total of 16 weeks, with an average of 40 minutes a day, 3 days a week, taking into account the recommendations of the American College of Sports Medicine (ACSM). Receives: Other: Circuit Training |
What is being measured
The primary outcome is the main question the study is designed to answer.
Posture (°)
Posture will be assessed with the Spinal Mouse® (Switzerland) device. The device has a measurement option different planes, provides the opportunity to evaluate both the posture and mobility of the spine, and gives valid, and reliable results. During the assessment, the processus spinosus of the spine from C7 to S3 will be marked and the mouse will be slide along the spine from top to bottom from the skin surface at a constant speed and pressure. Assessment were performed in an upright position for spinal posture.
Measured: Sixteen week
Mobility (°)
Mobility will be assessed with the Spinal Mouse® (Switzerland) device. The device has a measurement option different planes, provides the opportunity to evaluate both the posture and mobility of the spine, and gives valid, and reliable results. During the assessment, the processus spinosus of the spine from C7 to S3 will be marked and the mouse will be slide along the spine from top to bottom from the skin surface at a constant speed and pressure. The assessment were performed in maximum forward flexion position for spine mobility.
Measured: Sixteen week
Postural Competency (°)
Mobility will be assessed with the Spinal Mouse® (Switzerland) device. The device has a measurement option different planes, provides the opportunity to evaluate both the posture and mobility of the spine, and gives valid, and reliable results. During the assessment, the processus spinosus of the spine from C7 to S3 will be marked and the mouse will be slide along the spine from top to bottom from the skin surface at a constant speed and pressure. The assessment were performed in raising stretched-out arms to shoulder height with weights, designed according to the body weight, in each hand for postural competency.
Measured: Sixteen week
Secondary outcomes (2)
Trunk Muscle Endurance (sec)
Trunk muscle endurance will be measured with the trunk muscle endurance tests namely trunk flexion and extension endurance tests. Participants will be explained how to perform the positions by demonstrating them in advance. Then, they will be asked to repeat these positions once and to recognize the evaluation positions. Participants will be encouraged to maintain isometric postures for each test position as long as possible. The length of time that participants could maintain the correct position was recorded in seconds. This test does not contain minimum and maximum values. The longer the participants can maintain the correct position, the higher the endurance.
Measured: Sixteen week
Balance
Static balance will be assessed with the Biodex Balance System (Biodex Medical Systems, Inc., Shirley, New York, USA), which is a valid and reliable method (device), while the eyes are open and closed (bilateral) positions. Measurements will be repeated three times for static mode on barefoot. During the evaluation, the participant will be asked to give equal weight to both lower extremities on the platform and to remain as balanced as possible. This system (device) does not contain minimum and maximum values. A low score will be obtained from the device after the assessment indicates that the participant's balance performance is good.
Measured: sixteen week
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Mar 2023
- Study start15 Mar 2023
- Primary completion15 Jul 2023
- Study completion15 Jul 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Healthy WomenStudies 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
- Health services research
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- Prospective clinic study with a single group
- Masking
- None (open label)
- Enrolment
- 34 participants (actual)
Sponsor and investigators
- Lead sponsor
- Manisa Celal Bayar University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Erhan Seçer, Manisa Celal Bayar University
- Investigators
- Derya Ozer Kaya, Principal investigator, Izmir Katip Celebi UniversitySeyda Toprak Celenay, Principal investigator, Ankara Yildirim Beyazıt University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05777252
- Sponsor's protocol ID
- CBU-FTR-ES-O1
- Status last verified
- Aug 2023
- First submitted
- 8 Mar 2023
- Last updated
- 4 Aug 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: The investigators do not want to share individual participant data
Publications
Kaya DO, Secer E, Celenay ST. Effects of 16-week circuit training on spine structure, trunk muscle endurance, and balance in healthy women. J Bodyw Mov Ther. 2026 Jun;46:585-593. doi: 10.1016/j.jbmt.2025.12.031. Epub 2025 Dec 19.
PubMed 41927226
Study at a glance
From the registry record, last updated by the sponsor on 4 Aug 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of 16-Week Circuit Training on Spine Structure, Trunk Muscle Endurance, and Balance in Healthy Women
- ClinicalTrials.gov ID
- NCT05777252
- Acronym / sponsor ID
- CBU-FTR-ES-O1
- Conditions
- Healthy Women
- Keywords
- Health status, Exercise, Spine, Physical fitness, Women
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 34 participants (actual)
- Lead sponsor
- Manisa Celal Bayar UniversityUniversity, hospital or other
- Study start
- 15 Mar 2023 (actual)
- Primary completion
- 15 Jul 2023 (actual)
- Study completion
- 15 Jul 2023 (actual)
- First posted
- 21 Mar 2023 (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 study is to investigate the effects of 16-week CT on spine structure, trunk muscle endurance, and balance in healthy women.
Detailed description
Circuit training (CT) was developed by Morgan and Anderson in 1953, and is a type of training that includes various exercise stations arranged in a certain order. During CT, each participant performs 8 to 20 repetitions of exercise at each station, usually in less than a minute. Also, each participant moves from one training station to another with short rest periods or without breaks, and ends a training session by completing all stations. This training includes exercises performed with only body weight without the use of any equipment or with ancillary equipment such as elastic bands, free weights, and exercise devices, or a combination of both types of exercise.
It is seen that CT, which is a method frequently preferred by individuals of all ages all over the world to improve or maintain both physical performance, and health-related fitness, is gaining popularity due to its practicality and efficiency in recent years. Especially, it has become an important exercise option for individuals who have the problem of 'not having enough time for exercise' in daily life. The fact that the intensity can be adjusted according to the individual participant, that it includes both aerobic exercises and strengthening and endurance exercises for the trunk, upper and lower extremity muscles, and that it aims to improve both the musculoskeletal and cardiovascular systems of the participants is an important factor that increases the preferability of this training in all populations. Also, it is reported that the inclusion of various types of exercise in this exercise training greatly reduces the rate of participants dropping out of this type of training or ending it completely compared to other types of training. Lastly, the main feature of this exercise training, which allows individual interaction both among the participants and between the participants and the sports or health professionals who provides this training, is that it includes a combination of different types of exercises in order to improve both the musculoskeletal, and cardiovascular systems.
In the literature, it was seen that studies investigating the effects of CT on trunk muscle endurance included different populations. However, there were few studies investigating the effects of CT on endurance of trunk muscles in healthy women. Also, it was seen that there was not enough evidence in the current literature about the effects of CT on the spine structure in healthy women. Especially, a possible increase in endurance of trunk muscles after training may also positively affect spine structure via the kinetic chain. Lastly, it was concluded that studies investigating the effects of CT on balance mostly included patients with neurological disorders or the youth population. A possible positive effects on the spine structure via the kinetic chain may improve balance by increasing neuromuscular control in healthy women. This issue needs detailed investigation.
Therefore, the aim of this study was to investigate the effects of 16-week CT on spine structure, trunk muscle endurance, and balance in healthy women. Also, the investigators hypothesized that the 16-week CT would be positive effects on spine structure, trunk muscle endurance, and balance in healthy women.
Study design
- Primary purpose
- Health services research
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- Prospective clinic study with a single group
| Arm | Type | Receives |
|---|---|---|
| Training Group | Experimental | Other: Circuit TrainingCircuit training will be applied to the participants for a total of 16 weeks, with an average of 40 minutes a day, 3 days a week, taking into account the recommendations of the American College of Sports Medicine (ACSM). |
Who may qualify
- Ages
- 18 to 45 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- volunteering to participate in study
- not have any systemic, neurological, or rheumatological disease
Key exclusion criteria (4 listed)
- history of malignancy
- participating in another exercise training during the study
- using any medication that could affect the outcome of the study
- being pregnant
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 |
|---|---|---|
| Circuit TrainingWarm-up and cool-down protocols will be applied before and after each CT, and each exercise will be performed as 15 repetitions and an average of 40 seconds of rest will be given between exercises. Also, the intensity of CT will be determined according to the Borg scale (between 11 and 14). CT will include 'mini squat', 'step up', 'sit ups', 'reverse sit ups', 'leg press', 'leg curl', 'leg extension', 'crunches', 'lunge', 'prone bridge', and 'side bridge' exercises. | Other | Training Group |
Primary outcome
Posture (°)
Time frame: Sixteen week
Posture will be assessed with the Spinal Mouse® (Switzerland) device. The device has a measurement option different planes, provides the opportunity to evaluate both the posture and mobility of the spine, and gives valid, and reliable results. During the assessment, the processus spinosus of the spine from C7 to S3 will be marked and the mouse will be slide along the spine from top to bottom from the skin surface at a constant speed and pressure. Assessment were performed in an upright position for spinal posture.
Mobility (°)
Time frame: Sixteen week
Mobility will be assessed with the Spinal Mouse® (Switzerland) device. The device has a measurement option different planes, provides the opportunity to evaluate both the posture and mobility of the spine, and gives valid, and reliable results. During the assessment, the processus spinosus of the spine from C7 to S3 will be marked and the mouse will be slide along the spine from top to bottom from the skin surface at a constant speed and pressure. The assessment were performed in maximum forward flexion position for spine mobility.
Postural Competency (°)
Time frame: Sixteen week
Mobility will be assessed with the Spinal Mouse® (Switzerland) device. The device has a measurement option different planes, provides the opportunity to evaluate both the posture and mobility of the spine, and gives valid, and reliable results. During the assessment, the processus spinosus of the spine from C7 to S3 will be marked and the mouse will be slide along the spine from top to bottom from the skin surface at a constant speed and pressure. The assessment were performed in raising stretched-out arms to shoulder height with weights, designed according to the body weight, in each hand for postural competency.
2 secondary outcomes
Trunk Muscle Endurance (sec)
Time frame: Sixteen week
Balance
Time frame: sixteen week
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 4 Aug 2023.
- Derived from this study: PubMed 41927226Kaya DO, Secer E, Celenay ST. Effects of 16-week circuit training on spine structure, trunk muscle endurance, and balance in healthy women. J Bodyw Mov Ther. 2026 Jun;46:585-593. doi: 10.1016/j.jbmt.2025.12.031. Epub 2025 Dec 19.
- Individual participant dataSharing planned: No. The investigators do not want to share individual participant data
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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.
Derya Ozer Kaya principal investigator
Izmir Katip Celebi University
Seyda Toprak Celenay principal investigator
Ankara Yildirim Beyazıt University
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Circuit Training in people with Healthy Women, run by Manisa Celal Bayar University at 2 sites in Turkey (Türkiye).
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 2 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 4 Aug 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in Turkey (Türkiye). 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?
Posture (°) (time frame: Sixteen week). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05777252, which also lists 1 linked publication.
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 4 Aug 2023; AzTrials last refreshed its copy on 8 Nov 2026.