scholarly journals Rate of Force Development as an Indicator of Neuromuscular Fatigue: A Scoping Review

2021 ◽  
Vol 15 ◽  
Author(s):  
Samuel D’Emanuele ◽  
Nicola A. Maffiuletti ◽  
Cantor Tarperi ◽  
Alberto Rainoldi ◽  
Federico Schena ◽  
...  

Because rate of force development (RFD) is an emerging outcome measure for the assessment of neuromuscular function in unfatigued conditions, and it represents a valid alternative/complement to the classical evaluation of pure maximal strength, this scoping review aimed to map the available evidence regarding RFD as an indicator of neuromuscular fatigue. Thus, following a general overview of the main studies published on this topic, we arbitrarily compared the amount of neuromuscular fatigue between the “gold standard” measure (maximal voluntary force, MVF) and peak, early (≤100 ms) and late (>100 ms) RFD. Seventy full-text articles were included in the review. The most-common fatiguing exercises were resistance exercises (37% of the studies), endurance exercises/locomotor activities (23%), isokinetic contractions (17%), and simulated/real sport situations (13%). The most widely tested tasks were knee extension (60%) and plantar flexion (10%). The reason (i.e., rationale) for evaluating RFD was lacking in 36% of the studies. On average, the amount of fatigue for MVF (−19%) was comparable to late RFD (−19%) but lower compared to both peak RFD (−25%) and early RFD (−23%). Even if the rationale for evaluating RFD in the fatigued state was often lacking and the specificity between test task and fatiguing exercise characteristics was not always respected in the included studies, RFD seems to be a valid indicator of neuromuscular fatigue. Based on our arbitrary analyses, peak RFD and early phase RFD appear even to be more sensitive to quantify neuromuscular fatigue than MVF and late phase RFD.

2018 ◽  
Vol 9 ◽  
Author(s):  
Gennaro Boccia ◽  
Davide Dardanello ◽  
Paolo Riccardo Brustio ◽  
Cantor Tarperi ◽  
Luca Festa ◽  
...  

2002 ◽  
Vol 27 (3) ◽  
pp. 250-262 ◽  
Author(s):  
Tarak Driss ◽  
Henry Vandewalle ◽  
Jean-Michel Le Chevalier ◽  
Hugues Monod

Maximal anaerobic power (Pmax) is often measured on a friction loaded cycle ergometer by means of an all-out exercise against a single braking force or from the force-velocity relationship. The relationship between braking force (F) and peak velocity (V) in cycling is linear: V = V0(1 − F/F0) where V0 and F0 correspond to the intercepts with the velocity axis and force axis, respectively. The aim of the present paper was to test the hypothesis that parameter F0, expresses strength ability. The first study (12 male volleyball players) showed significant correlations between F0 and maximal isometric voluntary force (MVF) or maximal isometric rate of force development (MRFD) during isometric knee extension with data expressed either in absolute units (0.66 < r < 0.81, P < 0.01) or related to quadriceps muscle mass kgQ or kgQ2/3 (0.58 < r < 0.82, 0.05 < P < 0.001). In the second study (24 male athletes), F0 was significantly correlated with the peak torques in isokinetic Biodex knee extension at four angular velocities (0, 1.57, 3.14 and 4.19 rad • s−1) with the values expressed in absolute units (0.49 < r < 0.83, 0.05 < P < 0.001). When the results were related to kgQ or kgQ2/3 the correlation coefficients increased with velocity (0.22 < r < 0.69) and were significant (0.05 < P <  0.001) except at 0 rad • s−1. Nevertheless, the interest of the determination of F0 in addition to Pmax is questionable because similar coefficients of correlation were obtained between Pmax and strength performances. Key words: force, rate of force development, isometric exercise, isokinetic testing, maximal anaerobic power


2016 ◽  
Vol 35 (5) ◽  
pp. 435-440 ◽  
Author(s):  
Dragan M. Mirkov ◽  
Olivera M. Knezevic ◽  
Nicola A. Maffiuletti ◽  
Marko Kadija ◽  
Aleksandar Nedeljkovic ◽  
...  

1994 ◽  
Vol 77 (2) ◽  
pp. 807-811 ◽  
Author(s):  
M. D. Grabiner

Nine subjects performed maximum contractions with the knee extensor muscles on an isokinetic device set at 4.36 rad/s. The knee extensions were preceded by isometric conditioning contractions of the antagonist knee flexor muscles. The conditioning contraction forces were 0, 25, 50, 75, and 100% of the maximum isometric force. The purpose of the study was to determine 1) the effects of graded conditioning contractions with the knee flexor muscles on the maximum performance of the quadriceps femoris and 2) whether the effects of the conditioning contractions are similarly distributed to components of the quadriceps femoris. The increased initial quadriceps femoris activation levels associated with the conditioning contractions were similarly distributed to quadriceps femoris components. In contrast with previously published research on exercise performed at substantially lower knee extension velocities, the maximum knee extension force and the work performed were not affected by the conditioning contractions. However, the maximum rate of force development increased significantly (P < 0.05). The intensity of the knee flexor conditioning contractions likely influences agonist motor unit activation variables, but this influence may be related to the speed of the agonist contraction.


2014 ◽  
Vol 24 (6) ◽  
pp. 895-901 ◽  
Author(s):  
Ryota Shimose ◽  
Nobuyuki Ushigome ◽  
Chigaya Tadano ◽  
Hitoshi Sugawara ◽  
Masae Yona ◽  
...  

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