Understanding the Effect of Speed of Exertion on Isokinetic Strength Using a Multiaxial Dynamometer

• Autorzy: Nimbarte A. D. , Aghazadeh F. , Bogolu S. C. R. , Rajulu S. L.
• Języki publikacji: EN

Abstrakty

EN

In this study a multiaxial isokinetic dynamometer was used to measure strength during various upper-body isokinetic exertions. Ten male participants performed 7 different upper-body isokinetic exertions. In addition, to evaluate the effect of speed on strength, each participant performed sitting pull exertions at the speed of 0.026, 0.130, and 0.260 m/s. Average isokinetic strength increased from 236.6 ± 39.1 to 291.8 ± 65.8 N with the initial increase in speed from 0.026 to 0.130 m/s. The average isokinetic strength decreased to 276.7 ± 87.2 N with a further increase in speed to 0.260 m/s. The curve between isokinetic strength and speed followed a bell-shaped curve (fitted with the Gaussian function, R2 = .9). The results of this study could be useful in deciding on the work pace of various manual material handling tasks requiring maximal and/or near maximal exertions.

Słowa kluczowe

EN

isokinetic strength; fatigue; repetitions

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 2009
• Tom: Vol. 15, No. 3
• Strony: 255--263
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr.

Twórcy

autor

Nimbarte A. D.

• Department of Construction Management and Industrial Engineering, Louisiana State University, Baton Rouge, USA

autor

Aghazadeh F.

• Department of Construction Management and Industrial Engineering, Louisiana State University, Baton Rouge, USA

autor

Bogolu S. C. R.

• Department of Construction Management and Industrial Engineering, Louisiana State University, Baton Rouge, USA

autor

Rajulu S. L.

• NASA’s Johnson Space Center, Houston, TX, USA

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