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A randomized controlled trial will be conducted at the Department of Physiotherapy, Dr. Ziauddin Hospital and Al-Rayaz Hospital, Karachi, Pakistan. A total of 150 patients diagnosed with knee osteoarthritis, aged between 40-60 years, will be recruited through a non-probability purposive sampling technique. Written informed consent will be obtained from all eligible participants prior to enrollment. The participants will be randomly allocated by the help of computer generated randomization sheet, into two groups i.e. experimental and the control group, with 75 participants in each group. Group A (experimental group) will receive diagonal proprioceptive neuromuscular facilitation (PNF) pattern exercises, while Group B (control group) will receive conventional strength training exercises. Heat therapy will be administered to both groups. All participants will be assessed using a standardized assessment form. Outcome measures will include pain intensity, knee range of motion, functional disability, hamstring flexibility, dynamic balance, and fatigue level. A single blinded assessor will assess all participants at baseline and at post intervention. Treatment sessions will be given thrice a week on alternate days for 6 weeks.
The Statistical Package for the Social Sciences (SPSS) version 23 will be used for data analysis. Mean and standard deviation will be calculated for quantitative variables such as age. Qualitative variables will be presented as frequencies and percentages. Outcome measures (decrease pain intensity, improve functional disability, increase knee range of motion, improve hamstring flexibility, dynamic balance, and fatigue level) recorded at baseline and after 18th session of intervention will be compared and analyzed. Repeated measures ANOVA will be applied for statistical analysis. A p-value of less than 0.05 will be considered as the level of statistical significance.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Diagonal Proprioceptive Neuromuscular Facilitation (PNF) Pattern Exercises + Heat Therapy. | Experimental | This arm will receive PNF pattern exercises using Diagonal 1 and Diagonal 2 Lower Limb Patterns of PNF and the heat therapy |
|
| Conventional Strength Training Exercises + Heat Therapy | Active Comparator | This arm will receive evidence based treatment of Quadripceps and Hip Abductor Strengthening exercises and the heat therapy. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Diagonal Proprioceptive Neuromuscular Facilitation (PNF) Pattern Exercises | Other | Diagonal PNF pattern exercises include Diagonal 1 and Diagonal 2 lower limb pattern movements performed against resistance to improve strength, flexibility, and functional performance. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in pain intensity will be assessed with Visual Analogue Scale | The Visual Analogue Scale is a unidimensional measure of pain intensity, used to record patients' pain progression, or assess pain severity in different conditions. It is 0 to 10 cm scale. Patients rate their pain on the scale. Higher the score in centimeter, severe will be the pain experienced. | Baseline and after 6 weeks of intervention |
| Change in range of motion will be assessed with Universal Goniometer | The universal goniometer is an instrument for the precise measurement of range of movement angles in degree, especially one used to measure the angles before and after range of motion. Increase in the degree of angle suggests increase in range of movement. | Baseline and after 6 weeks of intervention. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in functional disability will be assessed with Knee Injury and Osteoarthritis Outcome Score (KOOS) | The Knee Injury and Osteoarthritis Outcome Score (KOOS) is a knee-specific instrument, developed to assess the patients' opinion about their knee and associated problems regarding functional disability. It consists of total 100 scores. Increase in scores suggests better function and decrease in scores suggests increased functional disability. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Rabia Hassan, MSAPT | Contact | +923345448859 | rabiahassan096@gmail.com | |
| Basit Ansari, PhD | Contact | +923222279221 | basitansari@hotmail.com |
| Name | Affiliation | Role |
|---|---|---|
| Rabia Hassan, MSAPT | Ziauddin University | Principal Investigator |
| Basit Ansari, PhD | University of Karachi | Study Chair |
| Aftab Ahmed Mirza Baig, PhD |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Al-Rayaz Hospital | Recruiting | Karachi | Sindh | 74600 | Pakistan |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 37268961 | Background | Nafees K, Baig AAM, Ali SS, Ishaque F. Dynamic soft tissue mobilization versus proprioceptive neuromuscular facilitation in reducing hamstring muscle tightness in patients with knee osteoarthritis: a randomized control trial. BMC Musculoskelet Disord. 2023 Jun 2;24(1):447. doi: 10.1186/s12891-023-06571-y. | |
| 36780435 | Background |
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Results will be published by the investigators in academic journals. Sharing of generated study data will be carried out in several different ways. We plan to make our results available to researchers and potential collaborators interested in physical medicine rehabilitation and knee osteoarthritis management.
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Data analyst will also be blinded.
| Conventional Strength Training Exercises | Other | The conventional strength training exercises include quadriceps and hip abductor strengthening performed using resisted active movements to improve muscle strength and functional ability. |
|
| Heat Therapy | Other | Heat therapy will be given for 10 minutes by the help of electric heating pad. |
|
| Baseline and after 6 weeks of intervention. |
| Change in hamstring flexibility will be assessed with Active Knee Extension test. | The Active Knee Extension (AKE) test will be used to assess hamstring muscle length using a goniometer with the hip flexion position at 90°. A greater knee extension angle indicates greater hamstring muscle length. | Baseline and after 6 weeks of intervention. |
| Change in dynamic balance will be assessed with Four Step Square Test (FSST) | The Four Square Step Test will be used to assess dynamic balance. It is measured in seconds. A higher completion times indicate poorer dynamic balance and a greater risk of falls. | Baseline and after 6 weeks of intervention. |
| Change in fatigue level will be assessed with Multidimensional Fatigue Inventory questionnaire. | The multidimensional fatigue inventory is a 20-item scale designed to evaluate five dimensions of fatigue: general fatigue, physical fatigue, reduced motivation, reduced activity, and mental fatigue. Higher total scores correspond with more acute levels of fatigue. | Baseline and after 6 weeks of intervention. |
| IQRA University |
| Study Director |
| Dr. Ziauddin Hospital | Recruiting | Karachi | Sindh | 74600 | Pakistan |
|
| Gao B, Li L, Shen P, Zhou Z, Xu P, Sun W, Zhang C, Song Q. Effects of proprioceptive neuromuscular facilitation stretching in relieving pain and balancing knee loading during stepping over obstacles among older adults with knee osteoarthritis: A randomized controlled trial. PLoS One. 2023 Feb 13;18(2):e0280941. doi: 10.1371/journal.pone.0280941. eCollection 2023. |
| 37745043 | Background | Geng R, Li J, Yu C, Zhang C, Chen F, Chen J, Ni H, Wang J, Kang K, Wei Z, Xu Y, Jin T. Knee osteoarthritis: Current status and research progress in treatment (Review). Exp Ther Med. 2023 Aug 25;26(4):481. doi: 10.3892/etm.2023.12180. eCollection 2023 Oct. |
| 32407583 | Background | Song Q, Shen P, Mao M, Sun W, Zhang C, Li L. Proprioceptive neuromuscular facilitation improves pain and descending mechanics among elderly with knee osteoarthritis. Scand J Med Sci Sports. 2020 Sep;30(9):1655-1663. doi: 10.1111/sms.13709. Epub 2020 Jun 1. |
| ID | Term |
|---|---|
| D020370 | Osteoarthritis, Knee |
| D010003 | Osteoarthritis |
| D001168 | Arthritis |
| D009140 | Musculoskeletal Diseases |
| D007592 | Joint Diseases |
| ID | Term |
|---|---|
| D012216 | Rheumatic Diseases |
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| ID | Term |
|---|---|
| D003972 | Diathermy |
| ID | Term |
|---|---|
| D006979 | Hyperthermia, Induced |
| D013812 | Therapeutics |
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