Trial Outcomes & Findings for The Effect of Shoulder Mobilization on Muscle Strength and Proprioception: a Randomized Double-blind Study (NCT NCT06910332)
NCT ID: NCT06910332
Last Updated: 2025-12-09
Results Overview
Laser pointer-assisted joint position reproduction test for shoulder: A laser pointer is strapped 5 cm above the lateral epicondyle. Participants actively move their arm to a predefined position (90° flexion or abduction), and the laser projection is marked. After lowering their arm and closing their eyes, they attempt to replicate the same position. The difference between the initial and reproduced positions (in millimeters) is measured
COMPLETED
NA
48 participants
Before the intervention
2025-12-09
Participant Flow
Participants were recruited from a university setting between April and May 2025. All participants provided written informed consent.
48 participants were assessed for eligibility and randomized before any intervention was delivered. No dropouts or exclusions occurred.
Participant milestones
| Measure |
Mobilization Group
Received passive glenohumeral joint mobilization (inferior, anterior, posterior glides).
|
Sham Group
Received simulated mobilization without mechanical input.
|
|---|---|---|
|
Overall Study
STARTED
|
24
|
24
|
|
Overall Study
COMPLETED
|
24
|
24
|
|
Overall Study
NOT COMPLETED
|
0
|
0
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
The Effect of Shoulder Mobilization on Muscle Strength and Proprioception: a Randomized Double-blind Study
Baseline characteristics by cohort
| Measure |
Mobilization Group
n=24 Participants
Received passive glenohumeral joint mobilization (inferior, anterior, posterior glides).
|
Sham Group
n=24 Participants
Received simulated mobilization without mechanical input.
|
Total
n=48 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Age, Continuous
|
21.08 years
n=9 Participants
|
20.91 years
n=6 Participants
|
21 years
n=9 Participants
|
|
Sex: Female, Male
Female
|
14 Participants
n=9 Participants
|
13 Participants
n=6 Participants
|
27 Participants
n=9 Participants
|
|
Sex: Female, Male
Male
|
10 Participants
n=9 Participants
|
11 Participants
n=6 Participants
|
21 Participants
n=9 Participants
|
|
Ethnicity (NIH/OMB)
Hispanic or Latino
|
0 Participants
n=9 Participants
|
0 Participants
n=6 Participants
|
0 Participants
n=9 Participants
|
|
Ethnicity (NIH/OMB)
Not Hispanic or Latino
|
0 Participants
n=9 Participants
|
0 Participants
n=6 Participants
|
0 Participants
n=9 Participants
|
|
Ethnicity (NIH/OMB)
Unknown or Not Reported
|
24 Participants
n=9 Participants
|
24 Participants
n=6 Participants
|
48 Participants
n=9 Participants
|
|
Muscle strength
Flexion
|
17.3 kg
n=9 Participants
|
19.5 kg
n=6 Participants
|
17.6 kg
n=9 Participants
|
|
Muscle strength
Abduction
|
17.6 kg
n=9 Participants
|
17.8 kg
n=6 Participants
|
17.6 kg
n=9 Participants
|
|
Muscle strength
External Rotation
|
9.82 kg
n=9 Participants
|
9.4 kg
n=6 Participants
|
9.47 kg
n=9 Participants
|
|
Muscle strength
Internal Rotation
|
15.4 kg
n=9 Participants
|
14.6 kg
n=6 Participants
|
14.6 kg
n=9 Participants
|
|
Proprioception Error
Flexion
|
54 mm
n=9 Participants
|
62.8 mm
n=6 Participants
|
57.3 mm
n=9 Participants
|
|
Proprioception Error
Abduction
|
86.7 mm
n=9 Participants
|
85.3 mm
n=6 Participants
|
86.2 mm
n=9 Participants
|
PRIMARY outcome
Timeframe: Before the interventionLaser pointer-assisted joint position reproduction test for shoulder: A laser pointer is strapped 5 cm above the lateral epicondyle. Participants actively move their arm to a predefined position (90° flexion or abduction), and the laser projection is marked. After lowering their arm and closing their eyes, they attempt to replicate the same position. The difference between the initial and reproduced positions (in millimeters) is measured
Outcome measures
| Measure |
Sham Group
n=24 Participants
Participants undergo a placebo procedure where the practitioner mimics the mobilization technique without applying actual joint movement or distraction.
|
Mobilization Group
n=24 Participants
Received passive glenohumeral joint mobilization (inferior, anterior, posterior glides).
|
|---|---|---|
|
Proprioception
Proprioception Flexion
|
62.8 mm
Standard Deviation 22.8
|
54 mm
Standard Deviation 20.9
|
|
Proprioception
Proprioception Abduction
|
85.3 mm
Standard Deviation 26.6
|
86.7 mm
Standard Deviation 32.1
|
PRIMARY outcome
Timeframe: Immediately after interventionLaser pointer-assisted joint position reproduction test for shoulder: A laser pointer is strapped 5 cm above the lateral epicondyle. Participants actively move their arm to a predefined position (90° flexion or abduction), and the laser projection is marked. After lowering their arm and closing their eyes, they attempt to replicate the same position. The difference between the initial and reproduced positions (in millimeters) is measured
Outcome measures
| Measure |
Sham Group
n=24 Participants
Participants undergo a placebo procedure where the practitioner mimics the mobilization technique without applying actual joint movement or distraction.
|
Mobilization Group
n=24 Participants
Received passive glenohumeral joint mobilization (inferior, anterior, posterior glides).
|
|---|---|---|
|
Proprioception
Proprioception Flexion
|
52.2 mm
Standard Deviation 78.3
|
52.3 mm
Standard Deviation 23.9
|
|
Proprioception
Proprioception Abduction
|
78.3 mm
Standard Deviation 32.5
|
91.2 mm
Standard Deviation 29
|
SECONDARY outcome
Timeframe: Before the interventionHand-held dynamometer (Lafayette) Muscle strength will be measured using a hand-held dynamometer (Lafayette). The assessment will focus on the shoulder flexors, abductors, internal rotators, and external rotators. Three measurements for each muscle group will be taken, and the average value will be recorded in kilograms (kg).
Outcome measures
| Measure |
Sham Group
n=24 Participants
Participants undergo a placebo procedure where the practitioner mimics the mobilization technique without applying actual joint movement or distraction.
|
Mobilization Group
n=24 Participants
Received passive glenohumeral joint mobilization (inferior, anterior, posterior glides).
|
|---|---|---|
|
Muscle Strength
Shoulder Internal Rotation
|
14.6 kg
Standard Deviation 5.91
|
15.4 kg
Standard Deviation 5.84
|
|
Muscle Strength
Shoulder Flexion
|
19.5 kg
Standard Deviation 9.08
|
17.3 kg
Standard Deviation 7.59
|
|
Muscle Strength
Shoulder Abduction
|
17.8 kg
Standard Deviation 7.58
|
17.6 kg
Standard Deviation 7.32
|
|
Muscle Strength
Shoulder External Rotation
|
9.40 kg
Standard Deviation 4.10
|
9.82 kg
Standard Deviation 3.60
|
SECONDARY outcome
Timeframe: Immediately after interventionHand-held dynamometer (Lafayette) Muscle strength will be measured using a hand-held dynamometer (Lafayette). The assessment will focus on the shoulder flexors, abductors, internal rotators, and external rotators. Three measurements for each muscle group will be taken, and the average value will be recorded in kilograms (kg).
Outcome measures
| Measure |
Sham Group
n=24 Participants
Participants undergo a placebo procedure where the practitioner mimics the mobilization technique without applying actual joint movement or distraction.
|
Mobilization Group
n=24 Participants
Received passive glenohumeral joint mobilization (inferior, anterior, posterior glides).
|
|---|---|---|
|
Muscle Strength
Shoulder Flexion
|
18.5 kg
Standard Deviation 9.42
|
18.3 kg
Standard Deviation 8.03
|
|
Muscle Strength
Shoulder Abduction
|
16.5 kg
Standard Deviation 8.35
|
16.6 kg
Standard Deviation 6.81
|
|
Muscle Strength
Shoulder External Rotation
|
9.95 kg
Standard Deviation 4.87
|
9.83 kg
Standard Deviation 3.05
|
|
Muscle Strength
Shoulder Internal Rotation
|
14.2 kg
Standard Deviation 6.45
|
15.1 kg
Standard Deviation 5.86
|
Adverse Events
Mobilization Group
Sham Group
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Ali Ömer ACAR
Acıbadem University, Department of Physiotherapy and Rehabilitation
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place