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Postpartum Exercise Intervention

21. maj 2026 opdateret af: Rita Deering, Carroll University

Influence of a Supervised Postpartum Exercise Program on Maternal Physical Activity Levels and Musculoskeletal Health

The postpartum period is associated with decreases in physical activity levels, muscular strength, muscular endurance, and pelvic floor muscle function, but little scientific evidence exists on how best to initiate and progress exercise in the postpartum period. This proposal aims to improve habitual physical activity levels, neuromuscular health (i.e., strength, fatigability, symptom burden) and overall wellbeing (i.e., decreased fear of movement, improved sleep quality, improved perception of quality of life) through participation in a weekly exercise program. This study will help to inform postpartum exercise recommendations and is novel as it allows participants to incorporate their children into the exercise routine, thus removing a primary barrier to physical activity/exercise.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Physical activity (PA)/exercise is crucial for maternal health and wellbeing but several barriers to PA/exercise participation exist in the postpartum period. Musculoskeletal impairments-such as weakness, increased fatigability, pelvic floor dysfunction (e.g., incontinence, pelvic organ prolapse, etc.), and pain-are common in the postpartum period. While these impairments provide strong rationale for participation in PA/exercise, they can also act as barriers to participation. Several psychosocial barriers also exist, including fear of movement and lack of childcare. Despite the importance of PA/exercise for health and wellness, and the documented musculoskeletal impairments that are associated with the postpartum period, assessment of neuromuscular function and education on resuming exercise is lacking in the standard postpartum care model in the United States. In addition, conflicting information can be found on social media and among clinical experts on when and how to best resume PA/exercise after childbirth. This proposal will evaluate the influence of an eight-week exercise intervention on neuromuscular function (i.e., lower extremity strength & endurance, pelvic floor muscle strength & endurance, self-reported pelvic floor dysfunction symptoms), habitual physical activity levels, and overall wellbeing (i.e., levels of kinesiophobia, sleep quality, self-reported quality of life) in postpartum females. In an effort to decrease barriers to exercise, childcare will be offered, and participants will have the opportunity to incorporate their child(ren) into exercise sessions if they so desire. This proposal will utilize a randomized control trial (RCT) design and objective measures of strength (i.e., load cells) along with standard clinical assessments of pelvic floor muscle function (i.e., internal vaginal assessment of strength and endurance, self-reported symptoms using validated questionnaires).

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

50

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

  • Forenede Stater
    • Wisconsin
      • Waukesha, Wisconsin, Forenede Stater, 53186
        • Rekruttering
        • Carroll University Center for Graduate Studies
        • Kontakt:
        • Kontakt:
        • Ledende efterforsker:
          • Rita E Deering, DPT, PhD

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • 18 years of age or older
  • gave birth in the 24 months prior to study enrollment

Exclusion Criteria:

  • less than 6 weeks postpartum or not medically appropriate to engage in exercise regardless of time since childbirth (will be screened using the Get Active Questionnaire for Postpartum)
  • prescription anti-inflammatory/pain medications that are taken daily;
  • significant orthopedic conditions that would contraindicate performance of the fatigue task and participation in the exercise intervention (such as fractures, severe scoliosis, etc)
  • moderate to severe cardiovascular &/or pulmonary disease that contraindicates participation in exercise
  • neuromuscular health conditions (such as diabetes, neuropathy, multiple sclerosis, stroke, seizures, etc);
  • smoking/vaping or use of other tobacco or nicotine products (chewing tobacco, nicotine patches, nicotine gum, etc.)
  • use of any illegal drugs

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Exercise Intervention
Study participants will attend a 1-hour in-person group exercise intervention once a week for 8 weeks.
Diagnostisk test: Aktiv lige ben hæve test
ASLR-testen er en veletableret klinisk test, der vurderer stabiliteten af ​​lændehvirvelsøjlen/bækkenet, sværhedsgraden af ​​bagerste bækkensmerter og evnen til at aktivere mavemusklerne. Det udføres i rygliggende. Deltagerne instrueres i at hæve det ene ben, med knæet lige, til en hælhøjde på 20 cm. Benet holdes øverst i 5 sekunder og sænkes derefter langsomt til jorden. Deltageren bliver bedt om at rapportere oplevet besvær med at hæve benet på en skala fra 0 til 5 (0=slet ikke svært; 5=ikke i stand til at løfte benet) og smerter på en skala fra 0 til 10 (0=ingen smerte; 10=værst mulig smerte). Hvis besvær eller smerte vurderes til 1 eller højere, gentages testen med forskeren, der sørger for ekstern kompression af bækkenet. Hvis oplevet besvær eller rapporteret smerte er lavere med kompression, anses testen for positiv for lumbopelvis ustabilitet. Testen gentages derefter på det modsatte lem.
Andre navne:
  • ASLR test
Andet: Aktiv Straight Leg Raise Fatigue Opgave
Protokollen ligner ASLR-testen, bortset fra at deltageren bliver instrueret i at holde det forhøjede ben fra jorden så længe som muligt. En biofeedback-luftmanchet vil blive placeret under deltagerens lumbopelvic-region for at vurdere bevægelse af rygsøjlen/bækkenet. Manchetten vil blive oppustet til 40 mm Hg, og deltageren instrueres i at holde nålen så tæt på 40 mm Hg som muligt under hele testen; der vil ikke blive givet information om, hvordan man påvirker manchettrykket, men visuel feedback af manchettrykket vil blive givet under hele opgaven. Vurderinger af opfattet anstrengelse (RPE) og smerte vil blive indhentet fra deltagerne hvert 30.-60. sekund. Opgavesvigt vil blive defineret som en hælhøjde ≤10 cm eller en ændring i manchettryk ≥20 mm Hg. Begge lemmer vil blive testet, men i forskellige sessioner. Rækkefølgen af ​​lemtestning (dominant vs ikke-dominant) vil være randomiseret og modbalanceret. Lemmerdominans vil blive selvrapporteret.
Diagnostisk test: Ultralydsbillede af bugvæggen
Real-time ultralyd vil blive brugt til at vurdere inter-recti afstand over og under navlen. Deltagerne vil blive vurderet med B Mode-billeder i rygliggende i hvile, i rygliggende, mens de løfter hovedet, og i rygliggende, mens de udfører et lige benløft. Principle Investigator har uddannelse og erfaring i muskuloskeletal ultralyd.
Andet: Progressive exercise
A progressive, 8-week exercise intervention has been developed and will be administered in a group setting.
Andre navne:
  • Dyrke motion
Andet: Lower Extremity Strength Testing
A straight leg raise maximal voluntary contraction (MVC) of each lower extremity an MVC of the hip extensors of the grounded limb will be performed in supine before and within 2 minutes of completing the ASLR fatigue task. The straight leg raise MVC will be performed with a custom-made load cell instrumented strength testing device, which consists of a rigid platform on which the participant will lie. At the foot of the device is a tower that houses 2 load cells connected to a lightly padded push plate. The hip extension MVC will be performed on a force plate. Before the ASLR fatigue task, a minimum of 3 MVC trials will be performed for each muscle group, with a minimum of 1 minute rest between trials; the highest peak force will be considered the MVC. Only 1 MVC trial per muscle group will be performed following the ASLR Fatigue Task.
Andet: Pelvic Floor Muscle Strength Testing
An internal vaginal pelvic floor muscle assessment will be performed at baseline and study completion by a licensed physical therapist with advanced training in pelvic floor muscle examination and treatment. Pelvic floor muscle function will be assessed using the PERFECT scale, which assesses both muscular strength ("P" for "power") and endurance ("E"). Strength is assessed by cueing the participant to perform a maximal voluntary pelvic floor muscle contraction while the examiner has their index finger inserted into the vagina. The modified Oxford scale is used to grade strength on a scale of zero (0) to five (5).
Andet: Pelvic Floor Muscle Endurance Testing
Pelvic floor muscle endurance is also assessed via the internal vaginal PFM examination. After strength testing is performed, participants are instructed to perform a maximal PFM contraction and hold for as long as possible (maximum of 10 seconds). The examiner counts the length of the contraction, and timing is stopped either when (1) strength of the contraction declines or (2) the maximum of 10 seconds is reached. The time in seconds is recorded.
Aktiv komparator: Control
Study participants will not receive the exercise intervention but will complete a weekly questionnaire to self-report physical activity levels.
Diagnostisk test: Aktiv lige ben hæve test
ASLR-testen er en veletableret klinisk test, der vurderer stabiliteten af ​​lændehvirvelsøjlen/bækkenet, sværhedsgraden af ​​bagerste bækkensmerter og evnen til at aktivere mavemusklerne. Det udføres i rygliggende. Deltagerne instrueres i at hæve det ene ben, med knæet lige, til en hælhøjde på 20 cm. Benet holdes øverst i 5 sekunder og sænkes derefter langsomt til jorden. Deltageren bliver bedt om at rapportere oplevet besvær med at hæve benet på en skala fra 0 til 5 (0=slet ikke svært; 5=ikke i stand til at løfte benet) og smerter på en skala fra 0 til 10 (0=ingen smerte; 10=værst mulig smerte). Hvis besvær eller smerte vurderes til 1 eller højere, gentages testen med forskeren, der sørger for ekstern kompression af bækkenet. Hvis oplevet besvær eller rapporteret smerte er lavere med kompression, anses testen for positiv for lumbopelvis ustabilitet. Testen gentages derefter på det modsatte lem.
Andre navne:
  • ASLR test
Andet: Aktiv Straight Leg Raise Fatigue Opgave
Protokollen ligner ASLR-testen, bortset fra at deltageren bliver instrueret i at holde det forhøjede ben fra jorden så længe som muligt. En biofeedback-luftmanchet vil blive placeret under deltagerens lumbopelvic-region for at vurdere bevægelse af rygsøjlen/bækkenet. Manchetten vil blive oppustet til 40 mm Hg, og deltageren instrueres i at holde nålen så tæt på 40 mm Hg som muligt under hele testen; der vil ikke blive givet information om, hvordan man påvirker manchettrykket, men visuel feedback af manchettrykket vil blive givet under hele opgaven. Vurderinger af opfattet anstrengelse (RPE) og smerte vil blive indhentet fra deltagerne hvert 30.-60. sekund. Opgavesvigt vil blive defineret som en hælhøjde ≤10 cm eller en ændring i manchettryk ≥20 mm Hg. Begge lemmer vil blive testet, men i forskellige sessioner. Rækkefølgen af ​​lemtestning (dominant vs ikke-dominant) vil være randomiseret og modbalanceret. Lemmerdominans vil blive selvrapporteret.
Diagnostisk test: Ultralydsbillede af bugvæggen
Real-time ultralyd vil blive brugt til at vurdere inter-recti afstand over og under navlen. Deltagerne vil blive vurderet med B Mode-billeder i rygliggende i hvile, i rygliggende, mens de løfter hovedet, og i rygliggende, mens de udfører et lige benløft. Principle Investigator har uddannelse og erfaring i muskuloskeletal ultralyd.
Andet: Lower Extremity Strength Testing
A straight leg raise maximal voluntary contraction (MVC) of each lower extremity an MVC of the hip extensors of the grounded limb will be performed in supine before and within 2 minutes of completing the ASLR fatigue task. The straight leg raise MVC will be performed with a custom-made load cell instrumented strength testing device, which consists of a rigid platform on which the participant will lie. At the foot of the device is a tower that houses 2 load cells connected to a lightly padded push plate. The hip extension MVC will be performed on a force plate. Before the ASLR fatigue task, a minimum of 3 MVC trials will be performed for each muscle group, with a minimum of 1 minute rest between trials; the highest peak force will be considered the MVC. Only 1 MVC trial per muscle group will be performed following the ASLR Fatigue Task.
Andet: Pelvic Floor Muscle Strength Testing
An internal vaginal pelvic floor muscle assessment will be performed at baseline and study completion by a licensed physical therapist with advanced training in pelvic floor muscle examination and treatment. Pelvic floor muscle function will be assessed using the PERFECT scale, which assesses both muscular strength ("P" for "power") and endurance ("E"). Strength is assessed by cueing the participant to perform a maximal voluntary pelvic floor muscle contraction while the examiner has their index finger inserted into the vagina. The modified Oxford scale is used to grade strength on a scale of zero (0) to five (5).
Andet: Pelvic Floor Muscle Endurance Testing
Pelvic floor muscle endurance is also assessed via the internal vaginal PFM examination. After strength testing is performed, participants are instructed to perform a maximal PFM contraction and hold for as long as possible (maximum of 10 seconds). The examiner counts the length of the contraction, and timing is stopped either when (1) strength of the contraction declines or (2) the maximum of 10 seconds is reached. The time in seconds is recorded.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Average Total Activity Counts (TAC) per day over 7 days
Tidsramme: 7 days pre-intervention, 7 days post-intervention
Physical activity habits around the time of testing will be assessed with a tri-axial accelerometer for 7 days outside of the laboratory, in part by measuring the TAC per day. TAC is the total number of filtered, full-wave rectified, integrated accelerations (all directions). These will then be averaged/day based on the total number of valid wear days for each participant.
7 days pre-intervention, 7 days post-intervention
Physical Activity Measured by Average Steps per day over 7 days
Tidsramme: 7 days pre-intervention, 7 days post-intervention
Physical activity habits around the time of testing will be assessed with a tri-axial accelerometer for 7 days outside of the laboratory, in part by measuring mean steps per day. This will be quantified as reported by the Ametris (formerly ActiGraph) accelerometer and CentrePoint analysis software. The Algorithm used by Ametris is not publicly available, but Ametris/ActiGraph accelerometers are frequently used in research quantifying physical activity.
7 days pre-intervention, 7 days post-intervention
Mean Duration per day of Moderate-Vigorous Physical Activity (MVPA) over 7 days: tri-axial counts
Tidsramme: 7 days pre-intervention, 7 days post-intervention
Physical activity habits around the time of testing will be assessed with a tri-axial accelerometer for 7 days outside of the laboratory, in part by measuring mean duration per day of MVPA. Intensity of physical activity assessed using tri-axial counts (per the accelerometer software) are as follows: Light physical activity is between 200 and 2690 counts/min, moderate intensity between 2690-6166 counts/min, and vigorous intensity is ≥ 6167 counts/min. MVPA is ≥2690.
7 days pre-intervention, 7 days post-intervention
Mean Duration per day of Moderate-Vigorous Physical Activity (MVPA) over 7 days: vertical counts
Tidsramme: 7 days pre-intervention, 7 days post-intervention
Physical activity habits around the time of testing will be assessed with a tri-axial accelerometer for 7 days outside of the laboratory, in part by measuring mean duration per day of MVPA. Intensity of physical activity assessed using vertical counts (per the accelerometer software) are as follows: Light physical activity is between 100 and 759 counts/min, moderate intensity is 760-5999 counts/min, and vigorous intensity is ≥ 6000 counts/min (MVPA is > 760 counts/min).
7 days pre-intervention, 7 days post-intervention
Average Minutes per Day of Activity in at least 5-minute bouts
Tidsramme: 7 days pre-intervention, 7 days post-intervention
Physical activity habits around the time of testing will be assessed with a tri-axial accelerometer for 7 days outside of the laboratory, in part by measuring mean duration per day of all activity. Average minutes per day of activity within each of the following categories: light = 25.8 mg - 100.5 mg; moderate = 100.6 mg - 428.7 mg; vigorous = > 428.8 mg (mg is the vector magnitude of acceleration calculated in gravities using Euclidean Norm minus 1 metric)
7 days pre-intervention, 7 days post-intervention
Average Minutes per Day of Activity in at least 10-minute bouts
Tidsramme: 7 days pre-intervention, 7 days post-intervention
Physical activity habits around the time of testing will be assessed with a tri-axial accelerometer for 7 days outside of the laboratory, in part by measuring mean duration per day of all activity. Average minutes per day of activity within each of the following categories: light = 25.8 mg - 100.5 mg; moderate = 100.6 mg - 428.7 mg; vigorous = > 428.8 mg. (mg is the vector magnitude of acceleration calculated in gravities using Euclidean Norm minus 1 metric)
7 days pre-intervention, 7 days post-intervention
Physical activity levels via self-reported questionnaires
Tidsramme: Once-a-week for the 8-week intervention period
Participants will complete the International Physical Activity Questionnaire (IPAQ) short-form. The IPAQ short-form quantifies physical activity (PA) over the previous week in 2 categories: low, moderate, or high activity; or metabolic equivalents (MET) minutes per week. High PA is categorized as (1)vigorous PA on at least 3 days/week with a combined minimum of at least 1500 MET minutes/week or (2) 7 days of cumulative PA of any intensity that sums to a minimum total of at least 3000 MET minutes/week. Moderate PA is categorized as (1) 3+ days of at least 30 minutes of vigorous PA, (2) 5+ days of moderate PA or walking at least 30 minutes/day, or (3) 5+ days of any level of PA that sums to a minimum of 600 MET minutes/week. Low physical activity is categorized as activity that does not meet the criteria for medium or high activity.
Once-a-week for the 8-week intervention period
Lower extremity strength
Tidsramme: Baseline and 7-14 days post-intervention
A straight leg raise maximal voluntary contraction (MVC) of each lower extremity will be performed in supine before and within 2 minutes of completing the ASLR fatigue task with a custom made load cell instrumented strength testing device. This device consists of a rigid platform on which the study participant will lie supine. At the foot of the device is a tower that houses 2 load cells and is connected to a lightly padded push plate. This push plate can be raised and lowered such that the participant can push up into the plate (contacts the anterior surface of the participant's shin) or push down onto the push plate (contacts the posterior aspect of the participant's heel). Before the ASLR fatigue task, a minimum of 3 MVC trials will be performed on each leg, with a minimum of 1 minute rest between trials; the highest peak force will be considered the MVC. Only 1 MVC trial per leg will be performed following the fatigue task.
Baseline and 7-14 days post-intervention
Mean Time to ASLR Fatigue Task Failure
Tidsramme: Baseline and 7-14 days post-intervention
The Active Straight Leg Raise Fatigue Task will be administered. Participants are asked to raise one leg to a heel height of 20 cm while lying supine. Participants are encouraged to keep the leg raised as long as possible. Task failure will be defined as a heel height less than or equal to 10 centimeters off the ground.
Baseline and 7-14 days post-intervention
Pelvic floor muscle strength
Tidsramme: Baseline and 7-14 days post-intervention
An internal vaginal pelvic floor muscle assessment will be performed at baseline and study completion by a licensed physical therapist with advanced training in pelvic floor muscle examination and treatment. Pelvic floor muscle function will be assessed using the PERFECT scale, which assesses both muscular strength ("P" for "power") and endurance ("E"). Strength is assessed by cueing the participant to perform a maximal voluntary pelvic floor muscle contraction while the examiner has their index finger inserted into the vagina. The modified Oxford scale is used to grade strength on a scale of zero (0) to five (5) with 5 being the strongest.
Baseline and 7-14 days post-intervention
Pelvic floor muscle endurance
Tidsramme: Baseline and 7-14 days post-intervention
Pelvic floor muscle endurance is also assessed via the internal vaginal PFM examination. After strength testing is performed, participants are instructed to perform a maximal PFM contraction and hold for as long as possible (maximum of 10 seconds). The examiner counts the length of the contraction, and timing is stopped either when (1) strength of the contraction declines or (2) the maximum of 10 seconds is reached.55 The time in seconds is recorded.
Baseline and 7-14 days post-intervention
Mean Pelvic Floor Distress Inventory Short Form (PFDI-20) Score
Tidsramme: Baseline and 7-14 days post-intervention
The PFDI-20 is composed of 20 items total on three scales (Pelvic Organ Prolapse, Colorectal-Anal Distress, Urinary Distress), each scored on a 5 point likert scale. Mean scores from each scale are calculated and multiplied by 25, then added together for a total possible range of scores from 0-300. Higher scores indicate increased pelvic floor distress.
Baseline and 7-14 days post-intervention
Fear of movement
Tidsramme: Baseline and 7-14 days post-intervention
Fear of movement (kinesiophobia) will be assessed via the Tampa Scale for Kinesiophobia (TSK). The TSK is a 17-question, self-administered questionnaire that utilizes a 4-point Likert scale (1= strongly agree, 4=strongly disagree). Total scores range from 17-68. A higher score indicates higher levels of kinesiophobia; a score of 17 indicates no/minimal kinesiophobia.
Baseline and 7-14 days post-intervention
Overall quality of life
Tidsramme: Baseline and 7-14 days post-intervention
Participants will complete the SF-20 questionnaire, which measures health in six different domains (physical functioning, role functioning, social functioning, mental health, health perceptions, and pain). Scores range from 0-100%, with 0% being the worst score and 100% being the best.
Baseline and 7-14 days post-intervention
Mean Global Pittsburgh Sleep Quality Index (PSQI) Score
Tidsramme: Baseline and 7-14 days post-intervention
The PSQI assesses seven sleep domains: sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medications, and daytime dysfunction. The seven components scores are then added to yield a global PSQI score in the range of zero to 21. Higher scores indicate worse sleep quality. A global score greater than five is diagnostic of poor sleep quality.
Baseline and 7-14 days post-intervention
Inter-recti distance
Tidsramme: Baseline and 7-14 days post-intervention
Ultrasound imaging will be used to measure the distance between the right and left rectus abdominis at 2 locations above the umbilicus and 2 locations below the umbilicus. IRD will be assessed in supine at rest (end exhalation), while lifting the head, and while lifting one leg.
Baseline and 7-14 days post-intervention

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Assessment of fatigability of the lumbopelvic stabilizing muscles measured by the ASLR Fatigue Task: Mean Pain Score
Tidsramme: Baseline and 7-14 days post-intervention
For the ASLR Fatigue Task, the participant is instructed to maintain the elevated leg off the ground for as long as possible. A biofeedback air cuff placed under the participant's lumbopelvic region assesses movement of the spine/pelvis during the test. The cuff will be inflated to 40 mm Hg, and the participant will be instructed to keep the needle as close to 40 mm Hg as possible throughout the test. Pain Scores will be measured (0-10 with higher scores increased pan) every 30-60 seconds. Task failure will be defined as a heel height ≤10 cm or a change in cuff pressure ≥20 mm Hg.
Baseline and 7-14 days post-intervention
Percent Change in Global Surface EMG Recordings: Abdominal Muscles
Tidsramme: Baseline and 7-14 days post-intervention
Electromyography (EMG) will be reported as the root mean square (RMS) value. The percent change in EMG from the start of the ASLR Fatigue task to task failure will be examined.
Baseline and 7-14 days post-intervention
Percent Change in Global Surface EMG Recordings: Rectus femoris
Tidsramme: Baseline and 7-14 days post-intervention
EMG for the rectus femoris will be normalized to the maximum RMS EMG obtained during lower extremity strength testing. The percent change in EMG from the start of the task to task failure will be examined.
Baseline and 7-14 days post-intervention

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Root mean square (RMS) of global EMG
Tidsramme: Baseline and 7-14 days post-intervention
Muscle behavior will be quantified from surface EMG recordings of the rectus abdominis and rectus femoris using multi-channel array surface EMG electrodes during maximal and submaximal contractions and fatiguing exercise of the abdominal muscles. If successful, RMS of global EMG will be reported.
Baseline and 7-14 days post-intervention
Percent of Maximum Voluntary Isometric Contraction (MVIC)
Tidsramme: Baseline and 7-14 days post-intervention
Muscle activity will be quantified from surface EMG recordings of the rectus abdominis and rectus femoris using a multi-channel array surface EMG electrodes during submaximal contractions and fatiguing exercise of the abdominal muscles, and normalized to the RMS EMG during maximal voluntary isometric contractions (MVIC). If successful, percent of MVIC will be reported.
Baseline and 7-14 days post-intervention

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Carroll University

Efterforskere

  • Ledende efterforsker: Rita Deering, DPT, PhD, Carroll University
  • Studieleder: Kimberly Klug, DSc, Carroll University

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

19. februar 2026

Primær færdiggørelse (Anslået)

1. maj 2028

Studieafslutning (Anslået)

1. august 2028

Datoer for studieregistrering

Først indsendt

20. november 2025

Først indsendt, der opfyldte QC-kriterier

21. maj 2026

Først opslået (Faktiske)

29. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

29. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

21. maj 2026

Sidst verificeret

1. april 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2025-061

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

Data will be archived in the NICHD Data and Specimen Hub (DASH). Per the DASH protocol, study data will be assigned a digital object identifier (DOI). Data will also be able to be found via searching for keywords (e.g., postpartum exercise).

IPD-delingstidsramme

Data will be made available following completion of data collection. Data will be shared for as long as possible per DASH guidelines.

IPD-delingsadgangskriterier

Data will be accessible to any person with access to DASH. Access to scientific data will not be controlled by study personnel. All 18 identifiers listed in the HIPAA Privacy Rule will be removed from data shared in the DASH repository to protect study participants.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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