Improving Core Strength in the Warfighter With a Novel Device (AllCore)

February 2, 2026 updated by: David Moss
Low back pain is one of the most common chief complaints amongst adult patients in the ambulatory clinic and emergency settings and poor core strength is a known underlying cause/perpetuator. Additionally, it is one of the most common reasons active-duty military personnel seek medical care (absolute 2015; absolute 2016; absolute 2017). Moreover, musculoskeletal conditions represent a common reason service members are placed on limited duty and considered medically not fit to deploy. The AllCore360° has the potential to prevent pain and injury, decrease pain as well as reduce duty, fitness and mobility restrictions in active-duty members with low back pain.

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Detailed Description

Trunk control enables the body to stay upright while sitting and standing. Trunk muscles also respond to shifting weight during activity in order to keep the body balanced and to prevent falling over due to shifts in center-of-gravity. Trunk control is necessary to perform activities of daily living and to stave off low back pain to ensure servicemember optimal performance. Weakened trunk muscles are a symptom of conditions such as cerebral palsy and stroke as well as causing more common conditions such as low back pain (Karthikbabu; Emami). Military pilots with weak core muscles were associated with having significant low back pain (Yang). Chinese military recruits assigned to core muscle functional strength training intervention had half as many reports of low back pain as the control group and also reported increased lumbar endurance (Wang). After 9 weeks, military police officers given trunk training had significantly lower general musculoskeletal pain than control as well as increased trunk muscle endurance (Grani). A systematic review in 2021 concluded that core stability provides therapeutic effects in patients with nonspecific low back pain by reducing pain and disability and by improving quality of life measures (Frizziero).

AllCore360° is a novel core-strengthening machine intervention designed to target trunk muscles through gravity by means of high-intensity constant velocity rotating exercise (allcore360.com). AllCore360° is systematic, consistent and designed for use over time. The core is strengthened because a patient's core muscles are used in anterior, lateral, and posterior contractions sequentially during a single rotation (Palevo). The patient must resist gravity with the rotation as well as contract and fire isometrically to keep proper posture. Using proper posture, the patient must keep their back straight and neck neutral throughout the length of the intervention without relying on their lower body muscles at all (this is assisted by straps rendering the legs useless and by securing the pelvis in the chair). AllCore360° can be individualized so that the patient is sitting at a specific degree (0° to 90°), where lowering the degree increases the difficulty of keeping muscles activated to continuecorrect posture. Once secured to the machine, the patient spends a pre-specified number of minutes with their whole body spinning in a 360° arc at the pre-specified angle programmed into the machine, rotating clockwise, counter-clockwise, or both.

AllCore360° is a relatively new machine outside of high-performance sports and intense rehab, and as such there is little published literature evaluating it. Case reports do exist. One case report showed the impact a 14-week program of AllCore360° isometric trunk training had on a child with cerebral palsy, where upon completion the patient had improved trunk stability and motor function (Park). Another case series looked at the AllCore360°'s effect on trunk function, balance, and mobility after stroke, finding improved lateral control during standing and showing that an extended program of AllCore360° sessions is feasible and repeatable (Pilkar).

Study Type

Interventional

Enrollment (Estimated)

43

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Nevada
      • Nellis Air Force Base, Nevada, United States, 89191
        • Mike O'Callaghan Military Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

**Patients must be able to get care at Nellis Air Force Base (a military installation) in order to participate in this study**

Inclusion Criteria:

  • Healthy DoD beneficiaries at Nellis Air Force Base between the ages of 18 and 50 participating in Tactical Air Control Party Specialist (TACP) training program

Exclusion Criteria:

  • Legally Authorized Representatives will not be utilized in this study.
  • Current low back pain
  • history of spinal surgery
  • history of other serious spinal pathology (e.g. annular tears, spinal stenosis [canal or neuroforaminal], fracture, painful spinal arthritis)
  • pregnancy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cohort
This is a prospective observational cohort using pre and post measurements of posture and core strength in subjects (Active Duty Members enrolled in Tactical Air Control Party Training) treated consistently with the AllCore360. The patients will act as their own control.
Device: AllCore

AllCore360° is a novel core-strengthening machine intervention designed to target trunk muscles through gravity by means of high-intensity constant velocity rotating exercise (allcore360.com).

AllCore360° is systematic, consistent and designed for use over time. The core is strengthened because a patient's core muscles are used in anterior, lateral, and posterior contractions sequentially during a single rotation (Palevo). The patient must resist gravity with the rotation as well as contract and fire isometrically to keep proper posture. Using proper posture, the patient must keep their back straight and neck neutral throughout the length of the intervention without relying on their lower body muscles at all (this is assisted by straps rendering the legs useless and by securing the pelvis in the chair).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Posture
Time Frame: baseline/week 1 (visit 1), week 4 (visit 12), week 7 (visit 13)
Providers will evaluate participants posture using the PostureScreen® mobile app. The PostureScreen® mobile app can be loaded onto an iPad or phone and used by study personnel to take photos of the subject. The software then measures postures from multiple views and produces a total of 41 with the spine data (31 without the spine data) postural measurements. These measurements are reported as anterior/lateral translations and angular displacements in a scale of inches or degrees respectively. A translation or angulation of 0 would indicate no postural displacement for that specific measure. This will be measured a total of 3 times over the course of the study.
baseline/week 1 (visit 1), week 4 (visit 12), week 7 (visit 13)
Core Strength
Time Frame: visit 1 (week), visit 2 (week 1), visit 3 (week 1); visit 4 (week 2), visit 5 (week 2), visit 6 (week 2); visit 7 (week 3), visit 8 (week 3), visit 9 (week 3); visit 10 (week 4), visit 11 (week 4), visit 12 (week 4); visit 13 (week 7)
Providers will evaluate participants core strength using sEMG measurement taken by DynaROM™ Motion EMG developed by Myovision. DynaROM™ uses sEMG to measure contractile strength in microvolts (μV) of underlying the muscles during contraction. Strength of contraction of the oblique muscles and lumbar paraspinous muscles will be measured by leads placed over these respective muscle groups. Strength on muscle contractions will be recorded every 10th of a second for the entire 10-minute session. A measurement of 0 would indicate no muscle contraction. This will be measured at every visit for a total of 13 times.
visit 1 (week), visit 2 (week 1), visit 3 (week 1); visit 4 (week 2), visit 5 (week 2), visit 6 (week 2); visit 7 (week 3), visit 8 (week 3), visit 9 (week 3); visit 10 (week 4), visit 11 (week 4), visit 12 (week 4); visit 13 (week 7)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Core Strength -- AllCore degree setting
Time Frame: visit 1 (week), visit 2 (week 1), visit 3 (week 1); visit 4 (week 2), visit 5 (week 2), visit 6 (week 2); visit 7 (week 3), visit 8 (week 3), visit 9 (week 3); visit 10 (week 4), visit 11 (week 4), visit 12 (week 4); visit 13 (week 7)
Providers will also evaluate participants core strength by recording the AllCore degree settings of each subject at each visit. The AllCore ranges from 0° to 90° and it can be adjusted at each visit according to the subject's core strength. This will be measured at every visit for a total of 13 times.
visit 1 (week), visit 2 (week 1), visit 3 (week 1); visit 4 (week 2), visit 5 (week 2), visit 6 (week 2); visit 7 (week 3), visit 8 (week 3), visit 9 (week 3); visit 10 (week 4), visit 11 (week 4), visit 12 (week 4); visit 13 (week 7)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

David Moss

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 21, 2025

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

January 1, 2027

Study Registration Dates

First Submitted

January 21, 2025

First Submitted That Met QC Criteria

January 21, 2025

First Posted (Actual)

January 29, 2025

Study Record Updates

Last Update Posted (Actual)

February 4, 2026

Last Update Submitted That Met QC Criteria

February 2, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • NMCSD.2025.0010

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

We are unable to share data.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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