Analisis Perancangan Adjustable Stem Sepeda Balap Berdasarkan Ergonomi Dan Biomekanika

Anggriawan, Armando Edo (2026) Analisis Perancangan Adjustable Stem Sepeda Balap Berdasarkan Ergonomi Dan Biomekanika. Masters thesis, Institut Teknologi Sepuluh Nopember.

Text 6010241102-Master-Thesis.pdf - Accepted Version Restricted to Repository staff only Download (5MB) | Request a copy

Abstract

Sepeda balap memiliki karakteristik posisi berkendara yang mengutamakan efisiensi aerodinamis melalui konfigurasi tubuh yang cenderung membungkuk ke arah depan. Posisi tersebut dapat menyebabkan peningkatan beban biomekanika pada bagian tubuh tertentu serta meningkatkan risiko munculnya keluhan muskuloskeletal apabila tidak sesuai dengan karakteristik antropometri pengguna. Komponen stem pada sepeda balap umumnya memiliki konfigurasi tetap sehingga kemampuan penyesuaian posisi berkendara masih terbatas. Penelitian ini bertujuan untuk melakukan analisis perancangan adjustable stem sepeda balap berdasarkan pendekatan ergonomi dan biomekanika pengguna. Metode penelitian dilakukan melalui perancangan prototype adjustable stem dan pengujian eksperimental dengan membandingkan kondisi sebelum menggunakan default stem (before) dan setelah menggunakan prototype adjustable stem (after). Pengujian dilakukan terhadap 30 partisipan menggunakan motion capture untuk memperoleh perubahan sudut trunk flexion, analisis biomekanika untuk mengetahui perubahan momen batang tubuh, serta kuesioner SNI 9011 untuk mengevaluasi risiko keluhan muskuloskeletal. Hasil penelitian menunjukkan bahwa penggunaan prototype adjustable stem meningkatkan rata-rata sudut trunk flexion dari 30,73° menjadi 52,90° dengan perubahan sebesar 22,17°. Analisis biomekanika menunjukkan adanya penurunan rata-rata momen batang tubuh dari 193,94 Nm menjadi 136,13 Nm. Selain itu, hasil evaluasi ergonomi menunjukkan adanya penurunan tingkat risiko keluhan muskuloskeletal pada pengguna. Berdasarkan hasil tersebut, prototype adjustable stem mampu memberikan konfigurasi posisi berkendara yang lebih adaptif dan meningkatkan aspek ergonomi pengguna sepeda balap.
====================================================================================================================================
Road bicycles are characterised by a riding posture that prioritises aerodynamic efficiency through a forward-leaning body position. However, this posture may increase biomechanical loads on certain body regions and contribute to the risk of musculoskeletal complaints when it does not correspond to the rider’s anthropometric characteristics. Road bicycle stems generally have a fixed configuration, resulting in limited adjustability of the riding position. This study aims to analyse the design of an adjustable road bicycle stem based on ergonomic and biomechanical considerations. The research was conducted by designing an adjustable stem prototype and performing experimental testing by comparing the conditions before using the default stem and after using the adjustable stem prototype. Tests were conducted on 30 participants using motion capture to measure changes in trunk flexion angle, biomechanical analysis to determine changes in trunk moment, and the SNI 9011 questionnaire to evaluate the risk of musculoskeletal complaints. The results showed that the adjustable stem prototype increased the average trunk flexion angle from 30.73° to 52.90°, representing a change of 22.17°. Biomechanical analysis also demonstrated a reduction in the average trunk moment from 193.94 Nm to 136.13 Nm. Furthermore, the ergonomic evaluation indicated a decrease in the level of musculoskeletal complaint risk among the participants. Based on these findings, the adjustable stem prototype was able to provide a more adaptive riding-position configuration and improve the ergonomic aspects of road cycling.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Adjustable stem, Ergonomi sepeda, Biomekanika, Motion capture Adjustable stem, Bicycle ergonomics, Biomechanics, Motion capture
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) > TA174 Computer-aided design.
Divisions:	Faculty of Industrial Technology > Industrial Engineering > 26101-(S2) Master Thesis
Depositing User:	Armando Edo Anggriawan
Date Deposited:	06 Aug 2026 03:34
Last Modified:	06 Aug 2026 03:34
URI:	http://repository.its.ac.id/id/eprint/144129

Actions (login required)

View Item