Comparative Effectiveness of Proprioceptive Neuromuscular Facilitation Stretch Vs Spencer Muscle Energy Technique on Pain and Disability in Patients with Adhesive Capsulitis
Authors: Ghaffar Tamjeed , Fatima Mehak , Zahra Chaman , Yousaf Ayesha , Wahid Iqra , Ghafoor Asma 
Published: October 2023

Purpose: Adhesive capsulitis is a condition in which the tissues of the shoulder joint become tight and impede movement. It is characterized by gradual loss of both active and passive glenohumeral joint motion, resulting in fibrosis, scarring and contractures of the joint capsule. Patient with adhesive capsulitis usually have difficulty in performing overhead activities, as well as routine duties such as combing their hair, dressing themselves, and throwing a ball. The objective of this study was to determine the effectiveness of proprioceptive neuromuscular facilitation (PNF) stretch vs muscle energy technique (MET) on pain and disability in patients with adhesive capsulitis.

Methodology: Study Design: This research employed a rigorous single-blinded randomized controlled trial design to investigate the comparative effectiveness of two manual therapy techniques in the management of adhesive capsulitis. The study was conducted in accordance with established ethical guidelines and principles. Participant Selection: A total of 30 participants, aged between 30 and 60 years, were recruited for this study. The selection process adhered to specific inclusion and exclusion criteria to ensure the homogeneity of the participant group. Inclusion criteria encompassed individuals in the 2nd and 3rd stages of adhesive capsulitis, both males and females, those with comorbid conditions such as diabetes and hypertension, and individuals experiencing painful restrictions in active and passive glenohumeral or periscapular motion. It was essential that participants had the ability to understand Punjabi or Urdu and were willing to participate. Exclusion criteria included individuals with a history of post-traumatic immobilization, cognitive impairment, previous surgery or arthroscopy, cervical pathology, neoplasm/tumor, or reflex sympathetic dystrophy. Informed Consent: Before the commencement of the study, informed consent was obtained from all participants. The participants were fully informed of the study's objectives, procedures, and potential risks and benefits. The rights of voluntary participation and the option to withdraw from the study at any time were emphasized. Participant data were anonymized and kept confidential throughout the research process to safeguard privacy. Randomization: To minimize bias, participants were randomly assigned to two distinct treatment groups, Group A and Group B. The randomization process was conducted using a computer-generated method, ensuring that each participant had an equal chance of being assigned to either group. Interventions: The study employed two distinct manual therapy techniques for the treatment of adhesive capsulitis. Group A received proprioceptive neuromuscular facilitation (PNF) stretching, while Group B underwent the Spencer muscle energy technique (MET). Both interventions were administered over a duration of one month. Baseline Treatment: In addition to the primary interventions, all participants received a hot pack as a baseline treatment. This standard treatment approach aimed to create a consistent baseline condition for all participants and to alleviate any discomfort. Data Collection: The collection of data was a crucial aspect of this study. Data were gathered through the utilization of structured data collection forms, designed to capture demographic information and adhere to the inclusion and exclusion criteria. Additionally, standardized assessment tools were used to quantify outcomes. The Shoulder Pain Assessment Disability Index (SPADI) was employed to evaluate both pain and functional disability, while the Numeric Rating Scale (NRS) was utilized to measure pain intensity.

Findings: Statistical analysis was done by using statistical package for the social sciences (SPSS) version 28. The collected data was analyzed and presented using appropriate statistical techniques. The data were initially checked for normality using the Kolmogorov-Smirnov and Shapiro-Wilk tests. Non-parametric tests were employed due to the non-normal distribution of the data. Qualitative data were analyzed for frequency and percentage. Intra-group differences were examined using the Wilcoxon signed-rank t-test, while inter-group differences were assessed with the Mann Whitney U-test. Spencer mean Mets treatment group has lower mean ranks in total SPADI pain as compared to PNF study group.

Conclusion: the study concluded that Spencer Mets has been more effective in reducing the pain of the patients as compared to PNF treatment. Healthcare professionals involved in the treatment of patients with adhesive capsulitis should consider the incorporation of Spencer MET as a viable option for pain management. The superior pain reduction observed in this study suggests that this technique may yield favorable results in real-world clinical settings. While this study offers valuable insights, further research is warranted to explore the long-term effects and potential differences in functional outcomes between Spencer MET and PNF treatment. Comparative studies with larger sample sizes and extended follow-up periods can provide a more comprehensive understanding of the benefits of these techniques.