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.

The comparison of two corrective exercise approaches for hyperkyphosis and forward head posture: A quasi-experimental study

BACKGROUND: Hyperkyphosis (HKP) and forward head posture (FHP) occur due to prolonged poor postures and repetitive activities. OBJECTIVE: The present study aimed to compare the effects of the National Academy of Sports Medicine (NASM) and Sahrmann corrective exercises on HKP and FHP correction. METHODS: This quasi-experimental study was conducted on 30 subjects with HKP and FHP, who were randomly assigned to the NASM (n= 15) and Sahrmann groups (n= 15). The ImageJ software and a spinal mouse device were used to measure FHP and HKP deformities, and neck and shoulder muscle strength, range of motion (ROM), and pulmonary function were assessed as the secondary outcomes before and after the eight-week intervention. RESULTS: FHP improved more significantly in the Sahrmann group compared to the NASM group (P< 0.05), while no significant difference was observed between the groups in HKP (P> 0.05). The improvement in the neck and shoulder muscle strength was more significant in the Sahrmann group compared to the NASM (P< 0.05), except for the neck flexors. In addition, the neck extension ROM enhanced more significantly in the Sahrmann group compared to the NASM group (P< 0.05). CONCLUSION: According to the results, the Sahrmann corrective exercises that focused on the correction of imbalanced muscle stiffness had more significant effects on the correction of FHP, neck and shoulder muscle strength and neck extension ROM.

The Effect of Arm and Shoulder Muscle Strength Training Models on Learning Outcomes of Shot Put: An Experimental Study on Physical Education of Middle School Students

SummaryThe problem in this study is the lack of arm and shoulder muscle strength training on the results of high school student shot put. This study aims to determine how much influence the arm and shoulder muscle strength training model has on the results of the shot put in high school students (SMK). The research participants were students of class XI SMK Negeri Rambah Samo, Rokan Hulu Regency. Participants were selected using a purposive sampling technique, amounting to 18 vocational students with an age range of 17-19 years (M = 18.2; SD = 0.8). This research is using the experimental method. The test instrument is shot put and data analysis using t-test statistics. The results of the study explained that the arm and shoulder muscle strength training model had the same effect on the results of students’ throws. The results of statistical calculations show that the posttest t-count of the experimental group’s arm and shoulder muscle strength is -0.11, where the t-count is smaller than t-table 9-0.11 <2.06), so the conclusion is that arm muscle strength training and shoulder muscle strength have the same effect on increasing shot throws. students. Therefore, arm muscle strength training and shoulder muscle strength are as good as increasing student shot put results.