견봉하 충돌 증후군에서의 진동 요법과 IASTM

Percussion massage therapy was administered using a handheld Hypervolt device (Hyperice, California, USA) at 33 Hz, corresponding to level 2 of the device. A flat-head attachment was used to provide uniform contact with the treated tissues.

The intervention was applied to the deltoid, supraspinatus, infraspinatus, and teres minor muscles along their anatomical fibre orientation. Each muscle was treated for three minutes using controlled longitudinal strokes applied alternately in proximal-to-distal and distal-to-proximal directions. The intervention was administered by the same licensed physiotherapist three times per week for four weeks, concurrently with the conventional physiotherapy programme.

• Hypervolt Percussion Massage Device

Participants received a standardized, supervised conventional physiotherapy programme for four weeks, administered five sessions per week by a licensed physiotherapist. Each session included transcutaneous electrical nerve stimulation applied to the symptomatic shoulder for 20 minutes at 100 Hz, followed by a structured exercise programme.

The exercise programme included wand-assisted active range-of-motion exercises for shoulder flexion, abduction, extension, internal rotation, and external rotation; Codman pendulum exercises; active and passive stretching; and finger ladder exercises. Progressive strengthening exercises using elastic resistance bands were performed for shoulder flexion, abduction, internal rotation, external rotation, and extension. Resistance was progressively adjusted according to pain severity, functional capacity, and treatment tolerance, while a standardized volume of 10 repetitions per set was maintained.

Participants received a standardized, supervised conventional physiotherapy programme for four weeks, administered five sessions per week by a licensed physiotherapist. Each session included transcutaneous electrical nerve stimulation applied to the symptomatic shoulder for 20 minutes at 100 Hz, followed by a structured exercise programme.

The exercise programme included wand-assisted active range-of-motion exercises for shoulder flexion, abduction, extension, internal rotation, and external rotation; Codman pendulum exercises; active and passive stretching; and finger ladder exercises. Progressive strengthening exercises using elastic resistance bands were performed for shoulder flexion, abduction, internal rotation, external rotation, and extension. Resistance was progressively adjusted according to pain severity, functional capacity, and treatment tolerance, while a standardized volume of 10 repetitions per set was maintained.

Instrument-assisted soft tissue mobilization was administered to the deltoid, supraspinatus, infraspinatus, and teres minor muscles three times per week for four weeks. All applications were performed by the same licensed physiotherapist.

Standardized sweep and brush stroke techniques were applied at an approximate treatment angle of 45 degrees and in accordance with the anatomical fibre orientation of each muscle. For each muscle, 20 seconds of parallel strokes were followed by 20 seconds of perpendicular strokes using controlled sweeping movements. The intervention was provided in addition to the conventional physiotherapy programme.

• IASTM

Participants received a standardized, supervised conventional physiotherapy programme for four weeks, administered five sessions per week by a licensed physiotherapist. Each session included transcutaneous electrical nerve stimulation applied to the symptomatic shoulder for 20 minutes at 100 Hz, followed by a structured exercise programme.

The exercise programme included wand-assisted active range-of-motion exercises for shoulder flexion, abduction, extension, internal rotation, and external rotation; Codman pendulum exercises; active and passive stretching; and finger ladder exercises. Progressive strengthening exercises using elastic resistance bands were performed for shoulder flexion, abduction, internal rotation, external rotation, and extension. Resistance was progressively adjusted according to pain severity, functional capacity, and treatment tolerance, while a standardized volume of 10 repetitions per set was maintained.

Shoulder joint position sense was assessed using a digital goniometer at target positions of 60 degrees of shoulder flexion and 60 degrees of shoulder abduction. The affected shoulder was passively positioned at the target angle, and the participant was allowed up to 10 seconds to memorize the position. The arm was then returned to the neutral position, and the participant was asked to actively reproduce the target position with the eyes closed.

The absolute angular difference between the target position and the reproduced position was calculated in degrees. Three trials were conducted for flexion and three trials for abduction, and the mean absolute error for each direction was used in the analysis. Lower values indicate greater joint position sense accuracy.