Feedback about isometric force production yields more random variations

2012 ◽  
Vol 513 (1) ◽  
pp. 37-41 ◽  
Author(s):  
Dilip N. Athreya ◽  
Guy Van Orden ◽  
Michael A. Riley
Keyword(s):  
Isometric Force ◽  
Force Production ◽  
Isometric Force Production

Acute beetroot juice administration improves peak isometric force production in adolescent males

2018 ◽  
Vol 43 (8) ◽  
pp. 816-821 ◽  
Author(s):  
David Bender ◽  
Jeremy R. Townsend ◽  
William C. Vantrease ◽  
Autumn C. Marshall ◽  
Ruth N. Henry ◽  
...  
Keyword(s):  
Isometric Force ◽  
Force Production ◽  
Sprint Performance ◽  
Peak Force ◽  
Adolescent Males ◽  
Height Velocity ◽  
Beetroot Juice ◽  
Repeated Sprint ◽  
Group Time ◽  
Isometric Force Production

The purpose of this study was to examine the effects of acute beetroot juice (BR) administration on repeated sprint performance and isometric force production in adolescent males. Twelve male adolescents (age, 16.8 ± 1.0 years; height, 178.8 ± 9.2 cm; mass, 74.8 ± 12.5 kg; peak height velocity, 2.53 ± 1.2 years) participated in this double-blind, placebo-controlled, crossover designed study. Participants consumed 2 × 70 mL of BR (∼12.9 mmol NO3−; Beet It Sport) or a nitrate-depleted placebo (PL) at 2.5 h prior to performing isometric mid-thigh pulls (IMTP) and 4 repeated 20-s Wingate sprints interspersed with 4 min of rest. Sprint data were analyzed by a 2 × 4 (group × time) repeated-measures ANOVA while a dependent t test was used to compare conditions for IMTP peak force. A significant main effect for time (p < 0.05) was observed for peak power (PP), average power (Pavg), and fatigue index (FI) across sprints. Compared with sprint 1, sprint 4 resulted in significant decreases in PP (p < 0.000; −16.6%) and Pavg (p = 0.000; −21.8%) and FI was significantly elevated (p < 0.000; 15.2%). No significant group × time interactions were observed between conditions for PP (p = 0.402), Pavg (p = 0.479), or FI (p = 0.37). IMTP peak force was significantly higher (p = 0.004; 13.9%) following BR consumption compared with PL. The repeated sprint protocol resulted in significant fatigue while BR did not influence sprint performance. However, it appears BR administration may improve peak force production in adolescent males.

The adaptive range of 1/f isometric force production.

2009 ◽  
Vol 35 (2) ◽  
pp. 439-446 ◽  
Author(s):  
Jacob J. Sosnoff ◽  
Andrew D. Valantine ◽  
Karl M. Newell
Keyword(s):  
Isometric Force ◽  
Force Production ◽  
Isometric Force Production

Time Needed to Change the Isometric Force Production of a Response

1990 ◽  
Vol 61 (4) ◽  
pp. 338-343
Author(s):  
Robert W. Christina ◽  
James H. Cauraugh ◽  
Aaron Shire
Keyword(s):  
Isometric Force ◽  
Force Production ◽  
Isometric Force Production

scholarly journals Dose-Response Effect of Isometric Force Production on the Perception of Pain

PLoS ONE ◽  
2014 ◽  
Vol 9 (2) ◽  
pp. e88105 ◽  
Author(s):  
Gaurav Misra ◽  
Tiffany A. Paris ◽  
Derek B. Archer ◽  
Stephen A. Coombes
Keyword(s):  
Dose Response ◽  
Isometric Force ◽  
Force Production ◽  
Response Effect ◽  
Dose Response Effect ◽  
Isometric Force Production

Effects Of Training Experience On The Relationship Between Muscle Mass And Isometric Force Production

2005 ◽  
Vol 37 (Supplement) ◽  
pp. S186
Author(s):  
Michael Hartman ◽  
Genevieve Stolt ◽  
Debra A. Bemben ◽  
Randa L. Shehab ◽  
Michael G. Bemben
Keyword(s):  
Muscle Mass ◽  
Isometric Force ◽  
Force Production ◽  
Training Experience ◽  
Isometric Force Production ◽  
The Relationship
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