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Journal of Prosthetics Orthotics and Science Technology (JPOST)
Published by Politeknik Kesehatan Kemenkes Jakarta I
ISSN : 29628016     EISSN : 29628016     DOI : https://doi.org/10.36082/jpost.v2i1
Core Subject : Health, Science,
Health Professions Materials Science & Nanotechnology Nursing Public Health
JPOST covers content topics of scientific knowledge which are relevant to physical rehabilitation and development within the scopes of the contexts listed below: -Prosthetics Orthotics (PO) -Rehabilitation Technology -Physical Disability -Ergonomics -Assistive Devices -Biomedical Engineering -Material Science related to PO
Arjuna Subject : Profesi Kesehatan - Terapi Fisik, Olah Raga dan Rehabiltasi
Articles 51 Documents
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The Effectiveness of Used Knee Decker to Knee Pain Complaints in Running Trail’s Runner Fathi, Muhammad; Syaifuddin, Muhammad; Hakim, Muhammad Nur Rohman
Journal of Prosthetics Orthotics and Science Technology Vol. 4 No. 1 (2025): Journal of Prosthetics Orthotics and Science Technology (JPOST)
Publisher : Poltekkes Kemenkes Jakarta I

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36082/jpost.v4i1.2009

Abstract

Background: Running performance is influenced by environmental and geographical factors, particularly terrain variations like slopes in trail running. Such conditions increase injury risk, especially to the lower extremities, with the knee joint being highly vulnerable. Knee deckers—elastic supports available in multiple sizes—are designed to mitigate injury risks by enhancing joint flexibility, providing stabilization, and reducing pain during daily activities or sports. Aim: To evaluate the effectiveness of knee deckers in alleviating knee pain among trail runners. Methods: A quasi-experimental study with a one-group pretest-posttest design was conducted. From a population of 163 trail runners, 30 participants were selected via purposive sampling based on inclusion/exclusion criteria. Pain levels were assessed before and after knee decker use. Results: Wilcoxon test analysis revealed a statistically significant reduction in knee pain (p = 0.000, p < 0.05), confirming the intervention’s effectiveness. Conclusion: Knee deckers significantly reduce knee pain in trail runners, supporting their utility for injury prevention and pain management.
Pineapple Leaf Fiber and Polyester Fabric Composite as a Material for Transtibial Prosthetic Socket Fabrication Supadma, Deby Eka; Rahmawati, Rina Fitriana; Kristianto, Jusuf
Journal of Prosthetics Orthotics and Science Technology Vol. 4 No. 1 (2025): Journal of Prosthetics Orthotics and Science Technology (JPOST)
Publisher : Poltekkes Kemenkes Jakarta I

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36082/jpost.v4i1.2045

Abstract

Background: A transtibial prosthesis restores mobility and functionality for individuals with below-knee amputations, with the socket serving as a vital interface between the residual limb and the prosthesis. In Indonesia, prosthetic sockets are commonly made from plastic, valued for strength and durability but criticized for non-sustainability, and high import costs. Locally sourced and cost-effective materials, such as pineapple leaf fiber, have gained attention as sustainable alternatives, offering lightweight and durable solutions. However, the natural fiber’s appearance may impact amputee satisfaction. Combining pineapple leaf fibers with polyester fabric could address these limitations by improving aesthetics without compromising functionality. Aims: This study aimed to develop and evaluate a transtibial prosthetic socket fabricated from pineapple leaf fibers and polyester fabric, focusing on accessibility, affordability, and enhanced usability for Indonesian amputees. Methods: The study used a quantitative experimental design that included creating composite materials with specific ratios of pineapple leaf fiber, epoxy resin, and polyester fabrics and fabricating transtibial prosthetic sockets using the lamination method. The socket was fitted to a transtibial amputee to ensure proper alignment and function. Over six weeks, the participant used the prosthesis in daily activities while data was collected on comfort, durability, and walking performance, along with feedback through interviews and questionnaires. Results: Amputee demonstrated improved mobility in daily activities, with slight endurance limitations during extended walking. Satisfaction was high regarding comfort, fit, aesthetics, and reliability. Conclusion: The composite material is a viable alternative for transtibial sockets, promoting sustainability and accessibility. Refinements for endurance and broader applications of natural fibers are recommended.
The Influence of Calf Support on Leg Power in Non-Athlete Badminton Players Anggriani, Atika Febri; Syafi’ie, Hisyam; Graita, Lafi
Journal of Prosthetics Orthotics and Science Technology Vol. 4 No. 1 (2025): Journal of Prosthetics Orthotics and Science Technology (JPOST)
Publisher : Poltekkes Kemenkes Jakarta I

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36082/jpost.v4i1.2073

Abstract

Background: Badminton players require strong lower-leg muscle strength (leg power) to execute effective footwork and hitting techniques. Leg power can be enhanced through exercises like calf raises and the use of calf support. Calf support, made of elastic material, applies pressure and warmth to the calf, promoting blood flow and muscle oscillation, which may improve muscle compression and performance. Aim: This study investigates the effect of calf support on leg power in badminton players. Methods: A quasi-experimental design was employed, with a population of 30 players and a final sample of 25 selected via purposive sampling based on inclusion/exclusion criteria. Leg power was assessed using a vertical jump test, followed by a 150-minute calf support intervention during gameplay. Data normality was checked using the Shapiro-Wilk test, and statistical analysis was performed with a Paired Sample T-test. Results: The analysis revealed a significant increase in leg power (p = 0.000) with calf support, showing an average difference of 46.24 (a 22% improvement). This indicates that calf support significantly enhances lower-leg muscle strength in badminton players. Conclusion: Calf support significantly improves leg power in badminton players, suggesting its potential as a performance aid.
Prosthetisation of a K2 Patient with Sub-ischial Socket Compared to Ischial Containment (IC) Socket: A Case Report Buratti, Davide; Vaccari, Matteo
Journal of Prosthetics Orthotics and Science Technology Vol. 4 No. 1 (2025): Journal of Prosthetics Orthotics and Science Technology (JPOST)
Publisher : Poltekkes Kemenkes Jakarta I

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36082/jpost.v4i1.2103

Abstract

Background: Ischial Containment Socket (ICS) has been the standard treatment for transfemoral amputees for thirty years, but the high edges and the ischial containment contribute to the discomfort of the socket especially when the patient is standing and while he is sitting.Aims: The purpose of this study is to compare ICS to sub-ischial socket in a unilateral TFA K2 patient.Methods: Two custom-fabricated sockets, worn full-time for 3 weeks, with testing on day 0 and at 3 weeks after socket delivery. The case report examined a 71-year-old woman three years after one-sided transfemoral amputation to the right leg, with K2 functional level. The protocol used contained three questionnaires, the measurement of the hip range of motion and 2 physical tests.Results: The most relevant results were the reduction of the pelvic inclination during the sitting with a variation of -42.9% (7° with the ICS and 4° with the sub-ischial socket), and an increase in all the measurements of the angles of the hip, especially in abduction and extension with percentage change that reaches +300% each. The two sockets were equivalent in the 2MWT (P-value=0.98) and in the 4SST (P-value=0.88) (statistical significance p<0.05). The patient reported that the sub-ischiatic socket is more comfortable and has more freedom of movement.Conclusion: It can be said that for patient K2 examined, the sub-ischial socket is a valid clinical alternative to the one with ischial containment, since it does not affect aspects such as stability and dynamics, but it also offers improvements in the stump-socket interface.
The Effect of Using a Spinal Orthosis on Non-Specific Lower Back Pain: Literature review Suprayogi, Dody; Zubaidi, Alfan; Rahayu, Listianingrum Budi
Journal of Prosthetics Orthotics and Science Technology Vol. 4 No. 1 (2025): Journal of Prosthetics Orthotics and Science Technology (JPOST)
Publisher : Poltekkes Kemenkes Jakarta I

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36082/jpost.v4i1.2133

Abstract

Background: Over time, various problems have emerged alongside societal developments, including those in the health sector. One common issue is musculoskeletal disorders, particularly low back pain (LBP). Nonspecific Low Back Pain (NSLBP) refers to a pain syndrome in the lower back region without a clearly identifiable cause. Spinal orthosis has been proposed as a potential treatment for back pain. Aims: This study aims to examine the effectiveness of spinal orthosis in managing low back pain through a literature review. Methods and Subjects: A literature review was conducted using databases such as Google Scholar, PubMed, and ScienceDirect. The keywords used included "spinal orthosis," "lumbar corset," and "low back pain." Only full-text English articles with an experimental design were included. Article selection followed the PRISMA diagram guidelines. Results: Low back pain can affect individuals of all ages, including adolescents and adults. Pain assessment tools such as the Visual Analog Scale (VAS) and Numeric Rating Scale (NRS) were commonly used in the studies. Among the types of spinal orthoses, Lumbosacral Orthosis (LSO) was found to be effective in reducing pain in individuals with low back pain. Conclusion: The use of a spinal orthosis, particularly a lumbosacral orthosis, in daily activities contributes to pain reduction in individuals suffering from nonspecific low back pain.
Sea Pandan Leaf Fiber as an Alternative Material for Upper Limb Orthosis Mutmainnah, Aisya Fitri; Rachmadita, Alya Febi; Yuliyanti, Annisa Mufid; Utomo, Prasetyo Catur
Journal of Prosthetics Orthotics and Science Technology Vol. 4 No. 1 (2025): Journal of Prosthetics Orthotics and Science Technology (JPOST)
Publisher : Poltekkes Kemenkes Jakarta I

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36082/jpost.v4i1.2143

Abstract

Background: The use of natural materials as an alternative to reduce the use of chemicals. One of the steps is the utilization of natural fibers from sea pandan leaves as a substitute for fiberglass chemicals in the process of making assistive devices for upper limb deformities. Objective: The objective of this scientific work is to utilize synthetic fiber alternatives used in the production of upper limb orthoses. Method: The data collection method used by the researcher is by tracing primary data: observing the composite results of sea pandan leaf fibers. Results: The experimental results show that fibers from sea pandan leaves soaked in a solution of 6 grams of NaOH and 3000 ml of water for one hour, then dried for 24 hours, can be used as a reinforcing material. By using 342.72 ml of resin and 6.8 ml of catalyst, these sea pandan fibers can optimally absorb the resin, thereby forming a sturdy composite structure through the thermal hardening process. The final product produced is a Wrist-Hand Orthosis (WHO) designed to address cases of Carpal Tunnel Syndrome (CTS). This orthosis demonstrates good shape and rigidity, although it is not as strong as fiberglass. The main advantage of sea pandanus fiber is its environmentally friendly properties and natural origin. Conclusion: Sea pandan leaf fibers are a promising alternative to replace fiberglass in WHO production in CTS cases. The process of soaking the fibers in NaOH solution has been proven to enhance resin absorption and strengthen the material's strength. The research results show that this natural fiber has the ability to provide good strength and stiffness, while remaining an environmentally friendly option and supporting the sustainable use of local natural resources.
The Effect of Medial Arch Support on Reducing Plantar Fasciitis Pain with Isolated Gastrocnemius Tightness (IGT) in Elementary School Teachers of Tetuko, Masaran Syaifuddin, Muhammad; Septiani, Anissa Eka
Journal of Prosthetics Orthotics and Science Technology Vol. 4 No. 1 (2025): Journal of Prosthetics Orthotics and Science Technology (JPOST)
Publisher : Poltekkes Kemenkes Jakarta I

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36082/jpost.v4i1.2145

Abstract

Background: Plantar fasciitis is an inflammatory condition of the plantar fascia that is often triggered by muscle tension, such as Isolated Gastrocnemius Tightness (IGT) causing pain in the heel and arch of the foot. Teachers, the risk of plantar fasciitis increases due to prolonged standing during teaching. The use of medial arch support is expected to reduce tension on muscles and ligaments, reducing pain due to plantar fasciitis with IGT. Aims: To evaluate the effectiveness of using medial arch support in reducing plantar fasciitis pain with IGT. Methods: The research is quantitative using a quasi-experimental one-group pre-test and post-test design. The study was conducted at Tetuko Elementary School. The sample consisted of 37 plantar fasciitis patients with IGT. Pain was measured using VAS before and after 4 weeks of intervention using medial arch support. Results: Wilcoxon Signed Rank Test results showed a decrease in pain of 0.000 (p <0.05). The average pain score before intervention was 5.38, which decreased to 3.11. The mean value of the Silfverskiold Test before intervention was 9.700 after the use of medial arch support increased to 15.350. Conclusion: This study shows that the use of medial arch support significantly reduces plantar fasciitis pain with IGT. The results of the analysis showed a significant reduction in pain based on VAS measurements of 42.19%. In addition, there was a significant increase in the Silfverskiold Test results for IGT of 47.94%, indicating improved flexibility of the gastrocnemius muscle.
Measurement of the Varus Thrust of a Single-Leg Standing Position Using Strain Sensors: Determining the Effectiveness of Knee Orthosis Yamamoto, Hiroaki; Mori, Masahiro; Tashiro, Koichi; Endo, Masahide; Kitagawa, Kodai
Journal of Prosthetics Orthotics and Science Technology Vol. 4 No. 2 (2025): Journal of Prosthetics Orthotics and Science Technology (JPOST)
Publisher : Poltekkes Kemenkes Jakarta I

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Background: Osteoarthritis of the knee is based on degenerative changes in the articular cartilage, resulting in varus thrust. Therefore, the treatment involves orthosis therapy to reduce the mechanical stress. Aims: The varus thrust of a young healthy subject is measured. Then, the relationship between orthosis and varus thrust is clarified. The purpose of this study was to assist in orthosis therapy for patients with knee osteoarthritis. Methods: The subjects were 15 young healthy subjects. The varus thrust during single-leg standing with and without orthosis was measured by strain sensors. Comparisons between groups were analyzed using the Wilcoxon rank-sum test. The statistical software fair was JSTAT for Windows, and the significance level was set at 5%. Results: Significant differences in strain sensor elongation were found between the groups with and without the orthosis. Conclusion: It was confirmed that the knee orthosis suppressed the varus thrust. The future challenge is to measure patients with knee osteoarthritis.
The Effect of Neoprene Knee Brace with Hinge on Dynamic Balance in Osteoarthritis Knee Anggriani, Atika Febri; Fatati, Muhibbah; Husna, Harnintya Tri
Journal of Prosthetics Orthotics and Science Technology Vol. 4 No. 2 (2025): Journal of Prosthetics Orthotics and Science Technology (JPOST)
Publisher : Poltekkes Kemenkes Jakarta I

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Background: Osteoarthritis of the knee is a degenerative joint disease that often causes pain, activity limitations, and balance disorders, particularly dynamic balance. One conservative approach to reducing symptoms and improving knee joint stability is the use of neoprene knee brace with hinges to provide compression and lateral-medial support, as well as enhance proprioception and neuromuscular control, all contributing to improved dynamic balance. Aims: To determine whether there is an effect of using a neoprene knee brace with hinge on dynamic balance in patients with knee osteoarthritis. Methods: This research method is quasi-experimental with a one-group pre-test and post-test design. The research sample consisted of 18 women aged 45-60 years who were selected using purposive sampling techniques based on inclusion and exclusion criteria. This study used the Time Up and Go Test to measure dynamic balance. Data normality was checked using the Shapiro-Wilk test, and statistical analysis was performed with a Paired Sample T-test. Results: Data analysis using a paired sample t-test showed a p-value of 0.000, indicating a significant difference between the pre-test and post-test scores. The average TUG test time before brace use was 16.60 seconds and after the intervention was 10.06 seconds, a difference of 6.54 seconds. Conclusion: The use of a neoprene knee brace with hinge has a significant effect on improving dynamic balance in patients with knee osteoarthritis, and can be an effective non-surgical intervention option in conservative treatment.
Design and Mechanical Evaluation of 3D-Printed Hybrid Transtibial Prosthetic Sockets Using Finite Element Analysis Singh, Vaishnavi; Das, Rajesh; Nayak, Smita
Journal of Prosthetics Orthotics and Science Technology Vol. 4 No. 2 (2025): Journal of Prosthetics Orthotics and Science Technology (JPOST)
Publisher : Poltekkes Kemenkes Jakarta I

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Background: A prosthetic socket serves as a vital interface between a patient’s residual limb and the prosthetic device, playing a key role in enhancing quality of life during prosthetic rehabilitation. The design and material composition of the socket significantly influence patient comfort, safety, and long-term functionality. Aims: This study introduces a novel transtibial prosthetic socket design concept utilizing additive manufacturing techniques with two materials: Polyamide 12 (PA12) for structural integrity and Thermoplastic Polyurethane (TPU) for inner comfort, aiming to improve biomechanical performance and user comfort. Methods: The socket design integrates both PA12, recognized for its ISO-compliant safety in socket fabrication, and TPU, chosen for its flexibility and skin-friendliness. Additive manufacturing methods, including Fused Deposition Modelling (FDM) and Selective Laser Sintering (SLS), were employed in fabrication. Biomechanical validation was conducted using the Radcliffe principle for stump-socket force analysis. Additionally, bio-based modelling and mathematical simulations were utilized to optimize the socket design, including surface pressure mapping on the residual limb. Results: The dual-material socket demonstrated potential improvements in mechanical strength and patient comfort. Surface pressure mapping allowed for precise evaluation of load distribution, confirming the design’s effectiveness in reducing peak pressure points and improving fit. Conclusion: Digital fabrication technologies, particularly additive manufacturing, offer promising avenues for customized, biomechanically sound prosthetic socket design. The integration of PA12 and TPU enhances both safety and comfort, suggesting a valuable direction for future prosthetic development and theoretical research in digital health technologies.

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