Effect of Saddle Height and Crank Length on Physiological and Psychophysical Responses of Indian Agricultural Workers during Pedalling

P. S. Tiwari; M. M. Pandey; L. P. Gite; A. K. Shrivastava

doi:10.52151/jae2015522.1571

Authors

P. S. Tiwari Agricultural Mechanization Division, ICAR, New Delhi Author
M. M. Pandey former DDG (Engg.) ICAR, New Delhi Author
L. P. Gite AICRP on Ergonomics and Safety in Agriculture, CIAE, Bhopal Author
A. K. Shrivastava Department of Farm Machinery and Power Engineering, College of Agricultural Engineering, JNKVV, Jabalpur. Author

DOI:

https://doi.org/10.52151/jae2015522.1571

Keywords:

Pedalling, saddle height, crank length, physiological responses, psychophysical responses

Abstract

Pedalling is the most efficient method of utilizing human muscle power. Pedal power use through chain and sprocket mechanism for rotary motion has low efficiency. The efficiency of dynapod for the same motion depends on several design parameters, including saddle height and crank length. In this study, the saddle height and crank length were optimised on the basis of physiological and psychophysical responses during pedalling. The study demonstrated that saddle height equal to 0.96 of trochanteric height of subjects and crank length of 180 mm is optimal for design of a dynapod.

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