Fatigue of intermittently stimulated quadriceps during imposed cyclical lower leg movements

Henry M. Franken; H.M. Franken; Petrus H. Veltink; Marc Fidder; H.B.K. Boom

Fatigue of intermittently stimulated quadriceps during imposed cyclical lower leg movements

Henry M. Franken, H.M. Franken, Petrus H. Veltink, Marc Fidder, H.B.K. Boom

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

1 Citation (Scopus)

152 Downloads (Pure)

Abstract

During prolonged experiments the influence of knee angular velocity, and stimulation parameters (interpulse interval (IPI), duty cycle (DC), number of pulses per cycle (NP)) on fatigue-induced torque decline of paralyzed human quadriceps was studied. Identification of torque-angle and -angular velocity was also performed. The overall loss of maximum torque (MT) and torque-time integral ('lTI) per cycle during sustained intermittent stimulation during isokinetic movement had a typical exponential decay reaching asymptotic values. Larger knee velocities resulted in a significantly faster and relative larger decay of MT and TTI. The rate and relative magnitude of fatigue during concentric contractions are in direct relation to NP. The results may be valuable in the design of optimal control systems for FES which pursue minimization of muscle fatigue.

Original language	Undefined
Title of host publication	Proceeding of the 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Place of Publication	Paris, France
Publisher	IEEE
Pages	1341-1342
Number of pages	2
ISBN (Print)	9780780307858
Publication status	Published - 29 Oct 1992
Event	14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 1992 - Paris, France Duration: 29 Oct 1992 → 1 Nov 1992 Conference number: 14

Publication series

Name
Publisher	IEEE

Conference

Conference	14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 1992
Abbreviated title	EMBC
Country/Territory	France
City	Paris
Period	29/10/92 → 1/11/92

Keywords

IR-16793
METIS-113678

Access to Document

Fatigue_of_Intermittently_-_franken

Cite this

@inproceedings{1c4b367d0a61405087877ee1c18482ed,

title = "Fatigue of intermittently stimulated quadriceps during imposed cyclical lower leg movements",

abstract = "During prolonged experiments the influence of knee angular velocity, and stimulation parameters (interpulse interval (IPI), duty cycle (DC), number of pulses per cycle (NP)) on fatigue-induced torque decline of paralyzed human quadriceps was studied. Identification of torque-angle and -angular velocity was also performed. The overall loss of maximum torque (MT) and torque-time integral ('lTI) per cycle during sustained intermittent stimulation during isokinetic movement had a typical exponential decay reaching asymptotic values. Larger knee velocities resulted in a significantly faster and relative larger decay of MT and TTI. The rate and relative magnitude of fatigue during concentric contractions are in direct relation to NP. The results may be valuable in the design of optimal control systems for FES which pursue minimization of muscle fatigue.",

keywords = "IR-16793, METIS-113678",

author = "Franken, {Henry M.} and H.M. Franken and Veltink, {Petrus H.} and Marc Fidder and H.B.K. Boom",

year = "1992",

month = oct,

day = "29",

language = "Undefined",

isbn = "9780780307858",

publisher = "IEEE",

pages = "1341--1342",

booktitle = "Proceeding of the 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society",

address = "United States",

note = "14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 1992 ; Conference date: 29-10-1992 Through 01-11-1992",

}

Franken, HM, Franken, HM, Veltink, PH, Fidder, M & Boom, HBK 1992, Fatigue of intermittently stimulated quadriceps during imposed cyclical lower leg movements. in Proceeding of the 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, Paris, France, pp. 1341-1342, 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 1992, Paris, France, 29/10/92.

Fatigue of intermittently stimulated quadriceps during imposed cyclical lower leg movements. / Franken, Henry M.; Franken, H.M.; Veltink, Petrus H. et al.
Proceeding of the 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Paris, France: IEEE, 1992. p. 1341-1342.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Fatigue of intermittently stimulated quadriceps during imposed cyclical lower leg movements

AU - Franken, Henry M.

AU - Franken, H.M.

AU - Veltink, Petrus H.

AU - Fidder, Marc

AU - Boom, H.B.K.

N1 - Conference code: 14

PY - 1992/10/29

Y1 - 1992/10/29

N2 - During prolonged experiments the influence of knee angular velocity, and stimulation parameters (interpulse interval (IPI), duty cycle (DC), number of pulses per cycle (NP)) on fatigue-induced torque decline of paralyzed human quadriceps was studied. Identification of torque-angle and -angular velocity was also performed. The overall loss of maximum torque (MT) and torque-time integral ('lTI) per cycle during sustained intermittent stimulation during isokinetic movement had a typical exponential decay reaching asymptotic values. Larger knee velocities resulted in a significantly faster and relative larger decay of MT and TTI. The rate and relative magnitude of fatigue during concentric contractions are in direct relation to NP. The results may be valuable in the design of optimal control systems for FES which pursue minimization of muscle fatigue.

AB - During prolonged experiments the influence of knee angular velocity, and stimulation parameters (interpulse interval (IPI), duty cycle (DC), number of pulses per cycle (NP)) on fatigue-induced torque decline of paralyzed human quadriceps was studied. Identification of torque-angle and -angular velocity was also performed. The overall loss of maximum torque (MT) and torque-time integral ('lTI) per cycle during sustained intermittent stimulation during isokinetic movement had a typical exponential decay reaching asymptotic values. Larger knee velocities resulted in a significantly faster and relative larger decay of MT and TTI. The rate and relative magnitude of fatigue during concentric contractions are in direct relation to NP. The results may be valuable in the design of optimal control systems for FES which pursue minimization of muscle fatigue.

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KW - METIS-113678

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EP - 1342

BT - Proceeding of the 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

PB - IEEE

CY - Paris, France

T2 - 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 1992

Y2 - 29 October 1992 through 1 November 1992

ER -