Comparing the effects of different exercise sequences on shoulder recovery in male racket sport players
| ISRCTN | ISRCTN15911792 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN15911792 |
| Sponsor | Daegu Catholic University |
| Funder | Catholic University of Daegu |
- Submission date
- 27/03/2026
- Registration date
- 30/03/2026
- Last edited
- 30/03/2026
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Musculoskeletal Diseases
Plain English summary of protocol
Background and study aims
Racket sports like tennis and badminton place high mechanical demands on the shoulder, often causing discomfort and injury. Recent rehabilitation approaches suggest that whole-body coordination, especially from the pelvis and core, is vital for shoulder recovery. This study aims to find the most effective sequence of exercises by comparing two rehabilitation programs: one starting with pelvic-lumbar (core) coordination exercises followed by shoulder stabilization, and the other performing the reverse order.
Who can participate?
Adult male recreational racket-sport participants who have experienced persistent shoulder discomfort.
What does the study involve?
Participants are randomly divided into two groups. Both groups complete the same two 20-minute exercise sessions (a pelvic-lumbar core program and a shoulder stabilization program) but in opposite orders. The two sessions are separated by a 24-hour rest period. Shoulder movement and coordination are evaluated using a smartphone camera (motion analysis) at three time points: 5 minutes before the first program, 5 minutes after the first program, and 5 minutes after the second program.
What are the possible benefits and risks of participating?
The possible benefits include improvements in shoulder mobility, function, and whole-body coordination during movements. The risks are minimal, primarily involving temporary mild muscle fatigue or soreness typical of standard exercise rehabilitation programs.
Where is the study run from?
The study is run from the Republic of Korea, involving researchers from Seoul National University and Ajou University, with ethical approval from Jeonbuk National University.
When is the study starting and how long is it expected to run for?
March 2025 to July 2025.
Who is funding the study?
Investigator initiated and funded.
Who is the main contact?
Dr. Donghwi Suh, donghwisuh@hanmail.net
Contact information
Public, Scientific, Principal investigator
Department of Practical Physical Education, Daegu Catholic University, 13-13 Hayang-ro, Hayang-eup, Gyeongsan-si, Gyeongsangbuk-do
Gyeongsan-si
38430
Korea, South
| Phone | 82-10-4131-9808 |
|---|---|
| donghwisuh@hanmail.net |
Study information
| Primary study design | Interventional |
|---|---|
| Allocation | Randomized controlled trial |
| Masking | Open (masking not used) |
| Control | Active |
| Assignment | Crossover |
| Purpose | Treatment |
| Scientific title | The effects of a lumbar-shoulder exercise rehabilitation sequence compared to a shoulder-lumbar sequence on shoulder joint function recovery in male recreational racket sport participants with shoulder discomfort |
| Study acronym | CSAT |
| Study objectives | To compare the effects of two exercise rehabilitation sequences (pelvic-lumbar coordination training followed by shoulder stabilization, and the reverse order) on shoulder joint function and coordination recovery in male recreational racket-sport participants. |
| Ethics approval(s) |
Approved 05/03/2025, Institutional Review Board of Jeonbuk National University (567, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do, 54896, Republic of Korea, 3rd Floor, Jeonbuk National University Main Building, Jeonju, 54896, Korea, South; +82-063-270-4889; ahnth2@jbnu.ac.kr), ref: 2025-02-021-001 |
| Health condition(s) or problem(s) studied | Shoulder discomfort |
| Intervention | Participants were randomly assigned to the groups using a computer-generated random number sequence. The allocation sequence was concealed and implemented using sealed opaque envelopes. LS Group: Completes a 20-minute lumbar-focused program (Core Stabilization Adjustment Training) first, followed by a 24-hour rest, and then a 20-minute shoulder-focused stabilization program. SL Group: Completes a 20-minute shoulder-focused stabilization program first, followed by a 24-hour rest, and then a 20-minute lumbar-focused program (Core Stabilization Adjustment Training). The total duration of the intervention for each participant spans two days, with testing conducted 5 minutes before and after each session. |
| Intervention type | Behavioural |
| Primary outcome measure(s) |
|
| Key secondary outcome measure(s) |
|
| Completion date | 31/07/2025 |
Eligibility
| Participant type(s) | |
|---|---|
| Age group | Adult |
| Lower age limit | 32 Years |
| Upper age limit | 44 Years |
| Sex | Male |
| Target sample size at registration | 32 |
| Total final enrolment | 32 |
| Key inclusion criteria | 1. Adult male recreational racket-sport participants. 2. Individuals who have received medical clearance to engage in shoulder rehabilitation exercises following the onset of shoulder pain. 3. Individuals reporting persistent shoulder discomfort lasting at least three months prior to study participation. |
| Key exclusion criteria | 1. Individuals with neurological disorders. 2. Individuals with biomechanical alterations resulting from pathological conditions. |
| Date of first enrolment | 05/03/2025 |
| Date of final enrolment | 31/07/2025 |
Locations
Countries of recruitment
- Korea, South
Study participating centres
Results and Publications
| Individual participant data (IPD) Intention to share | No |
|---|---|
| IPD sharing plan summary | Not expected to be made available |
| IPD sharing plan |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Statistical Analysis Plan | 30/03/2026 | No | No |
Additional files
- 49283_SAP.pdf
- Statistical Analysis Plan
Editorial Notes
27/03/2026: Study’s existence confirmed by the Institutional Review Board of Jeonbuk National University, South Korea.
