Hartiningrum, Aminy Widinal (2026) Pengembangan Sistem Pengukuran dan Analisis Gait Wearable untuk Rekomendasi Desain Welfare Wanita Hamil. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kehamilan menyebabkan perubahan massa dan komposisi tubuh sebagai akibat perubahan postural dan fisiologi. Hal ini menyebabkan perubahan gaya berjalan yang dapat memengaruhi stabilitas postural wanita hamil dan menyebabkan ketidaknyamanan dan nyeri muskuloskeletal, yang dapat diamati melalui perubahan center of pressure (COP) dan kinematika knee joint dan ankle joint. Oleh karena itu, penelitian ini merancang bangun sistem wireless multisensor yang wearable untuk pengukuran gaya berjalan wanita hamil menggunakan 8 sensor tekanan FSR Interlink 402 dalam modul slave Arduino Nano 33 BLE nRF52840 Rev2 dan 3 modul slave IMU yang menggabungkan sensor accelerometer-gyroscope dalam modul Seeed Studio XIAO nRF52840 Sense BLE. Data dari setiap modul slave dikirim ke modul master melalui komunikasi Bluetooth® Low Energy (BLE). Data modul master dikirim ke Personal Computer (PC) melalui komunikasi serial. Hasil pengujian menunjukkan bahwa instrumentasi yang dibuat dapat digunakan untuk akuisisi data plantar pressure untuk analisis parameter temporal dan center of pressure (COP) dan akuisisi knee joint angle (error: -1,02±0,339) dan ankle joint angle (error: -0,21±1,17) sehingga didapatkan analisis kinematika knee joint dan ankle joint. Perubahan berat badan wanita hamil yang signifikan dalam kategori angka kehamilan yang sama berkorelasi dengan peningkatan waktu fase stance dalam parameter temporal, penurunan maximum knee flexion pada fase swing (MKFsw) yang dikaitkan dengan strategi pemendekan langkah kaki, penurunan maximum ankle plantarflexion pada fase stance (MAPst) sebagai strategi meningkatkan joint stiffness untuk pencegahan jatuh, dan perubahan COP yang cenderung ke arah medial-anterior dengan deviasi yang lebih tersebar yang mengindikasikan ketidakstabilan. Rekomendasi berdasarkan hasil penelitian dapat berupa bantalan pada kaki ketika posisi duduk dan desain alas kaki yang tidak menambah beban pada bagian forefoot, seperti flat shoes, sandal selop, atau sepatu dengan negative heel shoes.
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Pregnancy causes changes in body mass and composition due to postural and physiological changes. It potentially leads to gait changes that can affect the postural stability of pregnant women and cause musculoskeletal discomfort and pain, which can be observed through center of pressure (COP) changes and kinematics of the knee joint and ankle joint. Therefore, this study designed a wearable wireless multi-sensor system for gait measurement of pregnant women using 8 FSR Interlink 402 pressure sensors in an Arduino Nano 33 BLE nRF52840 Rev2 slave module and 3 IMU slave modules that combined accelerometer-gyroscope sensors in Seeed Studio XIAO nRF52840 Sense BLE modules. Data from each slave module was sent to the master module via Bluetooth Low Energy (BLE) communication. The master module data was sent to a Personal Computer (PC) via serial communication. The testing results showed that the instrument created can be used for plantar pressure data acquisition to get temporal and COP parameters and can be used for knee joint angle (error: -1.02±0.339) and ankle joint angle (error: -0.21±1.17) acquisition to get knee joint and ankle joint kinematics parameters. The significant weight changes in pregnant women within the same pregnancy number correlated with increased stance phase time in temporal parameters, decreased maximum knee flexion in the swing phase (MKFsw) associated with a shortening footstep strategy, decreased maximum ankle plantarflexion in the stance phase (MAPst) as a strategy to increase joint stiffness for fall prevention, and changes in COP that tend to be medial-anterior with more diffuse deviations, indicating instability. Recommendations based on these research results can include cushioning the feet when sitting and footwear designs that do not increase the load on the forefoot, such as flat shoes, slippers, or shoes with negative heels.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Center of Pressure (COP), Kinematika, Kehamilan, Lower Limb, Wearable. Center of Pressure (COP), Kinematics, Pregnancy, Lower Limb, Wearable |
| Subjects: | Q Science > QM Human anatomy T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5102.9 Signal processing. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5103.2 Wireless communication systems. Two way wireless communication |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20101-(S2) Master Thesis |
| Depositing User: | Hartiningrum Aminy Widinal |
| Date Deposited: | 22 Jan 2026 02:01 |
| Last Modified: | 22 Jan 2026 02:56 |
| URI: | http://repository.its.ac.id/id/eprint/130007 |
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