Voluntary rate of torque development is impaired after a voluntary versus tetanic conditioning contraction

2013 ◽  
Vol 49 (2) ◽  
pp. 218-224 ◽  
Author(s):  
Cameron B. Smith ◽  
Matti D. Allen ◽  
Charles L. Rice
Keyword(s):  
Rate Of Torque Development ◽  
Conditioning Contraction ◽  
Torque Development

Knee flexor strength, rate of torque development and flexibility in women and men with patellofemoral pain: Relationship with pain and the single leg bridge test

2021 ◽  
Author(s):  
Matheus Henrique Maiolini Ducatti ◽  
Marina Cabral Waiteman ◽  
Ana Flávia Balotari Botta ◽  
Helder dos Santos Lopes ◽  
Neal Robert Glaviano ◽  
...  
Keyword(s):  
Patellofemoral Pain ◽  
Knee Flexor ◽  
Rate Of Torque Development ◽  
Torque Development ◽  
Flexor Strength

Blockade of 5-HT2 receptors suppresses rate of torque development and motor unit discharge rate during rapid contractions

2021 ◽  
Author(s):  
Benjamin Ian Goodlich ◽  
Sean A Horan ◽  
Justin J Kavanagh
Keyword(s):  
Motor Unit ◽  
Unit Activity ◽  
Repeated Measures ◽  
Discharge Rate ◽  
Voluntary Contraction ◽  
Unit Discharge ◽  
Motor Unit Activity ◽  
Rate Of Torque Development ◽  
Motor Unit Discharge ◽  
Torque Development

Serotonin (5-HT) is a neuromodulator that is critical for regulating the excitability of spinal motoneurons and the generation of muscle torque. However, the role of 5-HT in modulating human motor unit activity during rapid contractions has yet to be assessed. Nine healthy participants (23.7 ± 2.2 yr) ingested 8 mg of the competitive 5-HT2 antagonist cyproheptadine in a double-blinded, placebo-controlled, repeated-measures experiment. Rapid dorsiflexion contractions were performed at 30%, 50% and 70% of maximal voluntary contraction (MVC), where motor unit activity was assessed by high-density surface electromyographic decomposition. A second protocol was performed where a sustained, fatigue-inducing dorsiflexion contraction was completed prior to undertaking the same 30%, 50% and 70% MVC rapid contractions and motor unit analysis. Motor unit discharge rate (p < 0.001) and rate of torque development (RTD; p = 0.019) for the unfatigued muscle were both significantly lower for the cyproheptadine condition. Following the fatigue inducing contraction, cyproheptadine reduced motor unit discharge rate (p < 0.001) and RTD (p = 0.024), where the effects of cyproheptadine on motor unit discharge rate and RTD increased with increasing contraction intensity. Overall, these results support the viewpoint that serotonergic effects in the central nervous system occur fast enough to regulate motor unit discharge rate during rapid powerful contractions.

scholarly journals Muscle rate of torque development in female futsal players

2017 ◽  
Vol 2017 (S4A) ◽  
pp. 29-37
Author(s):  
Ana Carolina de M A Rodrigues ◽  
Nathália Arnosti Vieira ◽  
Sergio Augusto Cunha ◽  
Sérgio Rocha Piedade
Keyword(s):  
Rate Of Torque Development ◽  
Torque Development

scholarly journals Peak Torque and Rate of Torque Development Influence on Repeated Maximal Exercise Performance: Contractile and Neural Contributions

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0119719 ◽  
Author(s):  
Baptiste Morel ◽  
David M. Rouffet ◽  
Damien Saboul ◽  
Samuel Rota ◽  
Michel Clémençon ◽  
...  
Keyword(s):  
Exercise Performance ◽  
Maximal Exercise ◽  
Peak Torque ◽  
Rate Of Torque Development ◽  
Torque Development

Rate of torque development of paretic lower limb is an excellent predictor of walking speed in chronic stroke individuals

2021 ◽  
pp. 105527
Author(s):  
Raiff Simplicio da Silva ◽  
Mikhail Santos Cerqueira ◽  
Daniel Germano Maciel ◽  
Stephano Tomaz da Silva ◽  
Marianna Celeste Cordeiro De Figueiredo ◽  
...  
Keyword(s):  
Lower Limb ◽  
Walking Speed ◽  
Chronic Stroke ◽  
Rate Of Torque Development ◽  
Torque Development

scholarly journals Relevance of evaluating the rate of torque development in ballistic contractions of submaximal amplitude

2019 ◽  
Vol 40 (2) ◽  
pp. 025002 ◽  
Author(s):  
Paolo Riccardo Brustio ◽  
Roberto Casale ◽  
Giampiero Buttacchio ◽  
Marzia Calabrese ◽  
Marco Bruzzone ◽  
...  
Keyword(s):  
Rate Of Torque Development ◽  
Torque Development

The effect of rate of torque development on motor unit recruitment and firing rates during isometric voluntary trapezoidal contractions

2019 ◽  
Vol 237 (10) ◽  
pp. 2653-2664 ◽  
Author(s):  
Jonathan D. Miller ◽  
C. J. Lund ◽  
Marissa D. Gingrich ◽  
Kyle L. Schtul ◽  
Mandy E. Wray ◽  
...  
Keyword(s):  
Motor Unit ◽  
Motor Unit Recruitment ◽  
Firing Rates ◽  
Rate Of Torque Development ◽  
Torque Development
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