Skip Navigation LinksHome > November 1997 - Volume 11 - Issue 4 > Force-Time Dependent Characteristics of Dynamic and Isometri...
Journal of Strength & Conditioning Research:
Article: PDF Only

Force-Time Dependent Characteristics of Dynamic and Isometric Muscle Actions.

Haff, G. Gregory; Stone, Michael; O'Bryant, Harold S.; Harman, Everett; Dinan, Chris; Johnson, Robert; Han, Ki-Hoon

Collapse Box

Abstract

Eight trained men were used to compare isometric and dynamic force-time variables. Subjects performed maximum isometric and dynamic pulls at 80% (DP80), 90% (DP90), and 100% (DP100) of their current 1-RM power clean from a standardized postion on a 61.0- x 121.9-cm AMTI force plate. Isometric peak force showed moderate to strong correlations with peak force during DP80, DP90, and DP100 (r = 0.66, 0.77, and 0.80, respectively). Isometric rate of force development showed moderate to strong correlations with dynamic peak force during DP80, DP90, and DP100 (r = 0.65, 0.73, and 0.75, respectively) and was strongly correlated with peak dynamic rate of force development during DP80, DP90, and DP100 (r = 0.84, 0.88, and 0.84, respectively). This suggests that the ability to exert both isometric and dynamic peak force shares some structural and functional foundation with the ability to generate force rapidly.

(C) 1997 National Strength and Conditioning Association

 

Login

Article Tools

Share

Search for Similar Articles
You may search for similar articles that contain these same keywords or you may modify the keyword list to augment your search.