Force treadmill for measuring vertical and horizontal ground reaction forces. Kram, R., Griffin, T. M., Donelan, J. M., & Chang, Y. H. Journal of Applied Physiology, 85(2):764–769, August, 1998. We constructed a force treadmill to measure the vertical, horizontal and lateral components of the ground-reaction forces (F z , F y , F x , respectively) and the ground-reaction force moments (M z , M y , M x ), respectively exerted by walking and running humans. The chassis of a custom-built, lightweight (90 kg), mechanically stiff treadmill was supported along its length by a large commercial force platform. The natural frequencies of vibration were \textgreater178 Hz for F z and \textgreater87 Hz for F y , i.e., well above the signal content of these ground-reaction forces. Mechanical tests and comparisons with data obtained from a force platform runway indicated that the force treadmill recorded F z , F y, M x and M y ground-reaction forces and moments accurately. Although the lowest natural frequency of vibration was 88 Hz for F x , the signal-to-noise ratios for F x and M z were unacceptable. This device greatly decreases the time and laboratory space required for locomotion experiments and clinical evaluations. The modular design allows for independent use of both treadmill and force platform.![Force treadmill for measuring vertical and horizontal ground reaction forces [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper abstract bibtex We constructed a force treadmill to measure the vertical, horizontal and lateral components of the ground-reaction forces (Fz, Fy, Fx, respectively) and the ground-reaction force moments (Mz, My, Mx), respectively exerted by walking and running humans. The chassis of a custom-built, lightweight (90 kg), mechanically stiff treadmill was supported along its length by a large commercial force platform. The natural frequencies of vibration were \textgreater178 Hz for Fz and \textgreater87 Hz for Fy, i.e., well above the signal content of these ground-reaction forces. Mechanical tests and comparisons with data obtained from a force platform runway indicated that the force treadmill recorded Fz, Fy,Mx and My ground-reaction forces and moments accurately. Although the lowest natural frequency of vibration was 88 Hz for Fx, the signal-to-noise ratios for Fx and Mz were unacceptable. This device greatly decreases the time and laboratory space required for locomotion experiments and clinical evaluations. The modular design allows for independent use of both treadmill and force platform.
@article{kram_force_1998,
title = {Force treadmill for measuring vertical and horizontal ground reaction forces},
volume = {85},
copyright = {Copyright © 1998 the American Physiological Society},
issn = {8750-7587, 1522-1601},
url = {http://jap.physiology.org/content/85/2/764},
abstract = {We constructed a force treadmill to measure the vertical, horizontal and lateral components of the ground-reaction forces (Fz, Fy, Fx, respectively) and the ground-reaction force moments (Mz, My, Mx), respectively exerted by walking and running humans. The chassis of a custom-built, lightweight (90 kg), mechanically stiff treadmill was supported along its length by a large commercial force platform. The natural frequencies of vibration were {\textgreater}178 Hz for Fz and {\textgreater}87 Hz for Fy, i.e., well above the signal content of these ground-reaction forces. Mechanical tests and comparisons with data obtained from a force platform runway indicated that the force treadmill recorded Fz, Fy,Mx and My ground-reaction forces and moments accurately. Although the lowest natural frequency of vibration was 88 Hz for Fx, the signal-to-noise ratios for Fx and Mz were unacceptable. This device greatly decreases the time and laboratory space required for locomotion experiments and clinical evaluations. The modular design allows for independent use of both treadmill and force platform.},
language = {en},
number = {2},
urldate = {2014-05-28},
journal = {Journal of Applied Physiology},
author = {Kram, Rodger and Griffin, Timothy M. and Donelan, J. Maxwell and Chang, Young Hui},
month = aug,
year = {1998},
pmid = {9688758},
note = {We constructed a force treadmill to measure the vertical, horizontal and lateral components of the ground-reaction forces (F z , F y , F x , respectively) and the ground-reaction force moments (M z , M y , M x ), respectively exerted by walking and running humans. The chassis of a custom-built, lightweight (90 kg), mechanically stiff treadmill was supported along its length by a large commercial force platform. The natural frequencies of vibration were {\textgreater}178 Hz for F z and {\textgreater}87 Hz for F y , i.e., well above the signal content of these ground-reaction forces. Mechanical tests and comparisons with data obtained from a force platform runway indicated that the force treadmill recorded F z , F y, M x and M y ground-reaction forces and moments accurately. Although the lowest natural frequency of vibration was 88 Hz for F x , the signal-to-noise ratios for F x and M z were unacceptable. This device greatly decreases the time and laboratory space required for locomotion experiments and clinical evaluations. The modular design allows for independent use of both treadmill and force platform.},
pages = {764--769}
}
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The natural frequencies of vibration were \\textgreater178 Hz for Fz and \\textgreater87 Hz for Fy, i.e., well above the signal content of these ground-reaction forces. Mechanical tests and comparisons with data obtained from a force platform runway indicated that the force treadmill recorded Fz, Fy,Mx and My ground-reaction forces and moments accurately. Although the lowest natural frequency of vibration was 88 Hz for Fx, the signal-to-noise ratios for Fx and Mz were unacceptable. This device greatly decreases the time and laboratory space required for locomotion experiments and clinical evaluations. The modular design allows for independent use of both treadmill and force platform.","language":"en","number":"2","urldate":"2014-05-28","journal":"Journal of Applied Physiology","author":[{"propositions":[],"lastnames":["Kram"],"firstnames":["Rodger"],"suffixes":[]},{"propositions":[],"lastnames":["Griffin"],"firstnames":["Timothy","M."],"suffixes":[]},{"propositions":[],"lastnames":["Donelan"],"firstnames":["J.","Maxwell"],"suffixes":[]},{"propositions":[],"lastnames":["Chang"],"firstnames":["Young","Hui"],"suffixes":[]}],"month":"August","year":"1998","pmid":"9688758","note":"We constructed a force treadmill to measure the vertical, horizontal and lateral components of the ground-reaction forces (F z , F y , F x , respectively) and the ground-reaction force moments (M z , M y , M x ), respectively exerted by walking and running humans. 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Mechanical tests and comparisons with data obtained from a force platform runway indicated that the force treadmill recorded Fz, Fy,Mx and My ground-reaction forces and moments accurately. Although the lowest natural frequency of vibration was 88 Hz for Fx, the signal-to-noise ratios for Fx and Mz were unacceptable. This device greatly decreases the time and laboratory space required for locomotion experiments and clinical evaluations. The modular design allows for independent use of both treadmill and force platform.},\n\tlanguage = {en},\n\tnumber = {2},\n\turldate = {2014-05-28},\n\tjournal = {Journal of Applied Physiology},\n\tauthor = {Kram, Rodger and Griffin, Timothy M. and Donelan, J. 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