The Effect of Seat Tube Angle (STA) on Muscle Tension Leg Riders

Abstract:

Bicycle becomes famous transportation as efforts cut greenhouse gas emission. Comfortable, less injured, and less energy are the requirement of bicycle that urban communities wanted. Seat tube angle (STA) is an angle formed between seat tube and chain stay, which has influences on the above requirement. The objective of this study is to investigate the effect of varying seat tube angle (STA) on the muscle tension leg riders during cycling. This study used changeable frame bicycle into several STA. A total five cycling trials with body mass index 21-25, were conducted at seventeen STA’s position (form 62° until 78°). Muscle tension leg was measured before and after cycling by using leg dynamometer. Oxygen consumption (VO2) and heart rate (HR) data were also collected during cycling at 6 minutes and will be converted to paddle energy. Through this study was found that muscle tension leg rider decreasing with the increasing STA. However, after STA of 66°, the muscle leg tension increasing respecively. The smallest muscle tension leg was 21,4 Kg at 66° STA. At the same position, pedal energy showed 7.148 Kcal which was the smallest result as well. From these study found, that 66° STA also had less muscle tension leg and paddle energy during cycling.

• Periodical: Advanced Materials Research (Volume 939)
• Pages: 592-599
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.939.592
• Online since: May 2014
• Authors: I Made Londen Batan, Dinny Harnany*, Erick Rinaldi
• Keywords: Bicycle, Bike, Muscle Tension Leg, Seat Tube Angle (STA)

References

[1] D.G. Wilson, Bicycling Science – with Contributions by Jim Papadopolulos, third edition., The MIT Press Cambridge, Massachusetts, USA, (2004).

[2] K.J. Jackson, J.A. Mulcare, R.C. Duncan, The Effect Of Bicycle Seat Tube Angle On The Metabolic Cost Of The Cycle-Run Transition In Triathletes, Journal of Exercise Physiology, 11 (2008) 45-52.

[3] D.P. Heil, T.R. Derrick, S. Whittlesey, The Relation Between Preferred and Optimal Positioning During Submaximal Cycle Ergometry, Eur J Appl Physiol, 75 (1997) 160-165.

DOI: 10.1007/s004210050141

[4] I. Lazuardi, I M. L. Batan, E. Nurmianto, Study on Effect of STA on Pedal Energy at 3 Types of Bicycle. Final Project in Mechanical Engineering Departement, Institut Teknologi Sepuluh Nopember, Surabaya, (2010).

DOI: 10.35912/jpu.v2i1.1726

[5] D. Harnany, I M. L. Batan, Analyst of Relationsionship between STA and Specific Velocity of Rider Leg at 3 Types of Bicycle. Final Project in Mechanical Engineering Departement, Institut Teknologi Sepuluh Nopember, Surabaya, (2011).

DOI: 10.35912/jpu.v2i1.1726

[6] P.O. Astrand, K. Rodahl, Textbook of Work Physiology-Physiological Bases of Exercise, fourth ed., United State, (2003).

[7] M. D. Richard, P. H. Meyer, M. G. Miller, T. J. Michael, The Effect Of Bicycle Frame On Muscle Activation And Power During Wingate Anaerobic Test, Journal Sport And Science And Medicine, 5 (2006) 25-32.

[8] S. H. Wicaksono, I M. L. Batan, Desaign of Flexible Bicycle Frame in other to Design the Frame of Mountain Bike, City Bike and Sport Bike. Final Project in Mechanical Engineering Departement, Institut Teknologi Sepuluh Nopember, Surabaya, (2011).

DOI: 10.35912/jpu.v2i1.1726

[9] E. Rinaldi, I M. L. Batan, Analyst of Ergonomic and Tension Leg Mauscle at City Bike, Final Project in Mechanical Engineering Departement, Institut Teknologi Sepuluh Nopember, Surabaya, (2012).

DOI: 10.35912/jpu.v2i1.1726