Effects of Different Types of Contraction Exercises on Shoulder Function and Muscle Strength in Patients with Adhesive Capsulitis

Although several studies have reported the effect of exercise therapy for adhesive capsulitis (AC), studies on the comparison of different exercise types on shoulder muscle strength and function in patients with AC are lacking. This study aimed to investigate the effect of different exercise types on shoulder muscle strength and function in patients with AC. Thirty female patients with AC were categorized into an eccentric contraction exercise group (ECG, n = 15; age, 51.53 ± 4.73 years) and a concentric contraction exercise group (CCG, n = 15; age, 52.40 ± 4.03 years). The participants in each group performed a different exercise program three times per week for 60 min per session for 12 weeks. The range of motion (ROM) of the shoulder joint, visual analog scale, shoulder muscle strength, and Constant–Murley score (CMS) were measured before the intervention and after 12 weeks of the exercise intervention. Shoulder ROM in flexion (increase of 31%) and external rotation (ER) (increase of 54%) showed a significant improvement in the ECG (p < 0.05). Muscle strength in ER was significantly different between the two groups (p < 0.05). Pain severity showed improvement in the ECG (decrease of 61%) after the intervention (p < 0.01). The CMS in the ECG (increase of 48%) showed a greater improvement than that in the CCG after the intervention (p < 0.01). This study showed that eccentric contraction exercise had a more beneficial effect than concentric contraction exercise for improving shoulder muscle strength and function in females with AC.

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Effect of Graded Thera-Band Exercises on Shoulder Muscle Strength and Activities of Daily Life in Modified Radical Mastectomy Subjects

Biomedical & Pharmacology Journal ◽

10.13005/bpj/1763 ◽

2019 ◽

Vol 12 (3) ◽

pp. 1345-1351 ◽

Cited By ~ 1

Author(s):

Nirmiti. A. Datar ◽

T. Poovishnu Devi

Keyword(s):

Muscle Strength ◽

Daily Life ◽

External Rotation ◽

Radical Mastectomy ◽

Modified Radical Mastectomy ◽

Shoulder Muscle ◽

Activities Of Daily Life ◽

Shoulder Flexion ◽

Shoulder Muscle Strength ◽

Statistical Results

Modified radical mastectomy leads to dissection of muscles and soft tissue structures and chemotherapy causes weakness of the muscles involved resulting in functional limitations that affects the activities of daily life. Graded resistance exercise is effective in improving muscle strength, functional capacity and activities of daily life. To find the effect of graded thera-band exercises on shoulder muscle strength and activities of daily life in modified radical mastectomy patients. A total of 40 females who underwent mastectomy procedure along with chemotherapy or radiotherapy for breast carcinoma were included based on inclusion criteria. Group A received conventional strengthening program with weights and group B received thera-band exercises for five days per week for eight weeks and pre and post assessment was done with Disabilities of Arm, Shoulder and Hand(DASH) Questionnaire and Manual Muscle Testing(MMT). Statistical results within group values for Conventional strengthening program for DASH (p = <0.0001) and mean difference(MD) was 2.58, MMT for Shoulder flexion (p=0.867),MD= -0.15 and extension(p=0.046),MD= -2, abduction (p=0.775),MD= -0.3, internal rotation (p=0.701),MD= -0.35 and external rotation (p=0.039),MD= -1.65. The within group statistical results for experimental group for DASH (p=<0.0001),MD=4.98 , MMT for Shoulder flexion (p=0.012),MD= -2.05, extension (p=0.0007),MD= -2.1 and external rotation(p=0.036),MD= -2.2, abduction (p=0.055),MD= -1.65 and internal rotation (p=0.051),MD= -1.4 . The results conclude that strengthening with thera-band showed more better effect compared to conventional strengthening program. Strengthening exercise program with thera-band showed significant improvement in the outcome variables on strength and activities of daily life involving shoulder, arm and hand.

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Shoulder Muscle Strength and Neuromuscular Activation 2 Years after Reverse Shoulder Prosthesis—An Experimental Case Control Study

Journal of Clinical Medicine ◽

10.3390/jcm9020365 ◽

2020 ◽

Vol 9 (2) ◽

pp. 365

Author(s):

Anna Rienmüller ◽

Nicola A. Maffiuletti ◽

Hans-Kaspar Schwyzer ◽

Andreas Eggspühler

Keyword(s):

Muscle Strength ◽

External Rotation ◽

Case Control ◽

Emg Activity ◽

Neuromuscular Activation ◽

Activation Patterns ◽

Center Of Rotation ◽

Shoulder Muscle ◽

Flexion Extension ◽

Shoulder Muscle Strength

Although reverse shoulder arthroplasty (RSA) has shown successful postoperative outcomes, little is known about compensatory activation patterns of remaining shoulder muscles following RSA. The purpose of this experimental case control series was to investigate shoulder muscle strength and neuromuscular activation of deltoid and teres minor muscles 2 years after RSA. Humerus lengthening, center-of-rotation medialization, maximal voluntary strength, and electromyographic (EMG) activity were compared between the operated and the non-operated side of 13 patients (mean age: 73 years). Shoulder muscle strength was significantly lower on the operated side for external rotation (−54%), internal rotation (−20%), and adduction (−13%). Agonist deltoid EMG activity was lower on the operated side for shoulder flexion, extension, and internal and external rotation (p < 0.05). Antagonist deltoid coactivation was higher on the operated side for external rotation (p < 0.001). Large correlation coefficients were observed between shoulder adductor strength asymmetry and both center-of-rotation medialization (r = −0.73) and humerus lengthening (r = 0.71). Shoulder abduction strength and neuromuscular activation were well preserved 2 years after RSA, while persistent strength and activation deficits were observed for shoulder adduction and internal and external rotation. Additional studies are required to elucidate shoulder neuromuscular activation patterns before and after RSA to support decision making for surgical, implant design, and rehabilitation choices.

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A comparative study of shoulder muscle strength, sense of proprioception and internal/external rotation flexibility between adolescent athletes with and without scapular asymmetry

Advances in Rehabilitation ◽

10.5114/areh.2020.99103 ◽

2020 ◽

Vol 34 (3) ◽

pp. 1-7

Author(s):

Bihter Akınoğlu ◽

Banu Kabak ◽

Aydin Balci ◽

Tuğba Kocahan ◽

Adnan Hasanoğlu

Keyword(s):

Muscle Strength ◽

Comparative Study ◽

External Rotation ◽

Adolescent Athletes ◽

Shoulder Muscle ◽

Shoulder Muscle Strength

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Scapular Winging

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967114s00284 ◽

2014 ◽

Vol 2 (11_suppl3) ◽

pp. 2325967114S0028

Author(s):

Şeyda Toprak Çelenay ◽

Derya Özer Kaya

Keyword(s):

Muscle Strength ◽

Peak Torque ◽

Dash Score ◽

Medical Systems ◽

Muscle Training ◽

Scapular Winging ◽

Shoulder Muscle ◽

Significant Difference ◽

And Function ◽

Shoulder Muscle Strength

Objectives: To investigate the effects of scapular muscle training with proprioceptive neuromuscular facilitation techniques (PNF) on shoulder muscle strength, endurance and function in subjects with winging scapula. Methods: Forty subjects with bilateral winging scapula were randomly allocated into PNF Group (n=20, age:20.85±1.34 years), and Controls (n=20, age:20.77±1.77 years). PNF techniques in scapular diagonals were applied for scapular positioning and toning of the surrounding muscles for 3 days/week, 5 weeks. Shoulder muscle strength was evaluated diagonally with Biodex System 3 Pro isokinetic dynamometer (Biodex Medical Systems, Shirley, USA) at 60 and 180º/s. The scapular muscle endurance with Scapular Isometric Pinch Test, functional ability with Disability of the Arm, Shoulder and Hand Questionnaire (DASH) was assessed. Paired and independent t tests were used for analysis. Results: For pre (1) and post (2) applications, significant improvement on 60º/s flexion peak torque/bodyweight (1:36.78±13.05; 2:61.22±29.75), 60º/s extension peak torque/bodyweight (1:65.35±23.27; 2:80.18±38.66), 180º/s flexion peak torque/bodyweight (1:40.69±15.32; 2:50.84±23.90) on dominant sides; scapular endurance (1:31.95±23.06; 2:51.15±31.08 sn) and DASH score (1:7.86±12.00; 2:5.25±9.28) were found in PNF group (p<0.05). However, no significant difference was observed for Controls (p>0.05). Scapular endurance, flexion and extension peak torque/bodyweight at 60º/s were different in favor of PNF group in intergroup comparisons (p<0.05). Conclusion: Scapular muscle training with PNF may be effective in improving scapular and shoulder muscle strength, endurance and function in subjects with winging scapula.

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Assessment of shoulder mobility in women over 60 years of age after one-sided mastectomy

Rehabilitacja Medyczna ◽

10.5604/01.3001.0009.5480 ◽

2017 ◽

Vol 20 (4) ◽

pp. 13-16

Author(s):

Anna Włoch ◽

Marek Żak ◽

Anna Opuchlik ◽

Małgorzata Biskup ◽

Jarosław Fabiś

Keyword(s):

Muscle Strength ◽

Range Of Motion ◽

External Rotation ◽

Radical Mastectomy ◽

Functional Mobility ◽

Women Patients ◽

Shoulder Range Of Motion ◽

Shoulder Muscle ◽

Muscle Groups ◽

Shoulder Muscle Strength

The overall risk of contracting various diseases, including breast cancer, increases with age. An on-going process of population ageing challenges modern physiotherapy with the need to have functional capacity in older people appreciably enhanced. The issue of anthropometric assessment of the range of motion and shoulder muscle strength is presently much underrated in the physical rehabilitation management of women patients after radical one-sided mastectomy. The study aimed to assess the functional mobility of a shoulder expressed as a range of motion, in conjunction with the assessment of shoulder muscle strength, in women patients over 60 years of age after radical one-sided mastectomy. The study comprised 24 patients (mean age 65 years) recruited from the Department of Rehabilitation, Holy Cross Cancer Centre, Kielce. All patients had undergone modifi ed radical mastectomy using the Madden technique, and an adjuvant therapy. The shoulder range of motion, i.e. flexion, abduction, internal and external rotation, was evaluated by a goniometer. Elevation, protraction and retraction movements were evaluated using an anthropometric device. A dynamometer was applied to assess the strength of select muscle groups within the shoulder during elevation, protraction and retraction motions. Statistical analysis was made with the aid of STATISTICA 12.0 software, having adopted a 0.05 alpha level as statistically signifi cant. The movements of fl exion, abduction and external rotation of the upper extremity were signifi cantly reduced on the mastectomy side. The range of motion and muscle strength during shoulder elevation, protraction and retraction were significantly diminished on the operated side (12% - 14%), compared to the non-operated one. 1. Functional mobility of the shoulder was signifi cantly reduced on the mastectomy side. 2. Results of the present study highlight the need to extend the scope of rehabilitation regimens offered to older women after radical one-sided mastectomy.

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