Fatigue-induced dissociation between rate of force development and maximal force across repeated rapid contractions

Boccia, Gennaro; Dardanello, Davide; Tarperi, Cantor; Festa, Luca; Torre, Antonio La; Pellegrini, Barbara; Schena, Federico; Rainoldi, Alberto

doi:10.1016/j.humov.2017.05.016

Cited by 14 publications

(26 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Shortly after the half-marathon, the maximal force decreased by ≈21%, confirming that the prolonged run induced moderate muscle fatigue in knee extensors. This is in line with our previous studies where we also found a moderate decrease (ranged 11–24%) in maximal force after half-marathons performed in similar experimental conditions ( Boccia et al, 2017a , b , 2018 ). The strength loss is a common finding after endurance running in ecological race conditions: it increases non-linearly with the duration of exercises and it may vary between 8 and 41% ( Millet and Lepers, 2004 ; Place et al, 2010 ; Giandolini et al, 2016 ).…”

Section: Discussionsupporting

confidence: 93%

“…The maximal RFD moderately decreased after the race (≈19%). This is in line with some previous studies investigating prolonged running ( Kelly et al, 2011 ; Oliveira et al, 2013 ; Boccia et al, 2017a , 2018 ). The muscle activation (EMG amplitude normalized to M-wave amplitude) measured during the execution of maximal RFD moderately decreased (≈14%), suggesting that the impairment in RFD can be attributed, at least in part, to a suboptimal neural drive to the muscles ( Maffiuletti et al, 2016 ).…”

Section: Discussionsupporting

confidence: 93%

“…Consequently, a distinction should be drawn between ballistic contraction of maximal amplitudes, usually adopted in the literature to calculate the maximal RFD, and ballistic contraction of submaximal amplitudes, which are possibly more relevant for endurance running. While it has been demonstrated that running-based fatiguing protocols impair the maximal RFD ( Oliveira et al, 2013 ; Boccia et al, 2017a , 2018 ), it is unknown to what extent muscle fatigue may impair the ability to quickly produce forces of submaximal amplitudes.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Neuromuscular Fatigue Does Not Impair the Rate of Force Development in Ballistic Contractions of Submaximal Amplitudes

et al. 2018

Self Cite

View full text Add to dashboard Cite

The effect of muscle fatigue on rate of force development (RFD) is usually assessed during tasks that require participants to reach as quickly as possible maximal or near-maximal force. However, endurance sports require athletes to quickly produce force of submaximal, rather than maximal, amplitudes. Thus, this study investigated the effect of muscle fatigue induced by long-distance running on the capacity to quickly produce submaximal levels of force. Twenty-one male amateur runners were evaluated before and shortly after a half-marathon race. Knee extensors force was recorded under maximal voluntary and electrically evoked contractions. Moreover, a series of ballistic contractions at different submaximal amplitudes (from 20 to 100% of maximal voluntary force) was obtained, by asking the participants to reach submaximal forces as fast as possible. The RFD was calculated for each contraction. After the race, maximal voluntary activation, resting doublet twitch, maximal force, and RFD during maximal contraction decreased (-12, -12, -21, and -19%, respectively, all P-values < 0.0001). Nevertheless, the RFD values measured during ballistic contractions up to 60% of maximal force were unaffected (all P-values > 0.4). Long-distance running impaired the capacity to quickly produce force in ballistic contractions of maximal, but not of submaximal, amplitudes. Overall, these findings suggest that central and peripheral fatigue do not affect the quickness to which muscle contracts across a wide range of submaximal forces. This is a relevant finding for running and other daily life activities that rely on the production of rapid submaximal contractions rather than maximal force levels.

show abstract

Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Neuromuscular Fatigue Does Not Impair the Rate of Force Development in Ballistic Contractions of Submaximal Amplitudes

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…Moderate and high intensity is essential in a program since involve large muscle mass and could lead at a better resistance at fatigue during running performance (Boccia et al, 2017).…”

Section: Training Plan and Prescriptionmentioning

confidence: 99%

Effects of Different Training Intensity Distribution in Recreational Runners

Festa

Tarperi

Skroče

et al. 2020

Front. Sports Act. Living

Self Cite

View full text Add to dashboard Cite

Purpose: To compare the impact of two different training intensity distributions in terms of conditional and performance parameters and spent time to training in recreational athletes.Methods: Two different training intensity distribution model were performed for 8 weeks by 38 recreational runners. Runners recruited were randomly assigned to 2 different training models based on HR intensity detected with maximal test. The percentage distribution splitted in zone 1, 2, and 3 were by 77/3/20 and 40/50/10 in polarized endurance training group (PET) and focused endurance training (FOC) group, respectively. Programs were balanced for total training impulse (TRIMP). To evaluate effects of training, before and after treatment were performed a maximal exercise test to determine Maximal Oxygen Uptake (V'O 2max ), Ventilatory Threshold (VT), respiratory-compensation point (RCT) Running Economy (RE), and 2 Km performance. To investigate the effects of training on muscular performance were performed one repetition maximum (1 RM), squat jump (SJ), and counter movement jump (CMJ).Results: Both groups significantly improved their velocity at V'O 2max (3.2 and 4.0%), at VT (4.0 and 3.2%), RCT (5.7 and 3.4%), the average velocity in 2 Km performance (3.5 and 3.0%) and RE (−5.3 and −8.7%) for PET and FOC, respectively for each variable. No differences were found between the groups on any parameter investigated except about the total training time (PET = 29.9 ± 3.1 h and FOC = 24.8 ± 2.0 h). Conclusion: Focused Endurance Training obtains similar improvements than PolarizedEndurance Training saving 17% of training time in recreational runners.

show abstract

“…It is interesting to note that, despite both sexes exhibit a dissimilar reduction in MVIC and mechanical work output after completing high-velocity isokinetic exercise, this does not seem to impair fast force production to a different extent between men and women in either condition (post-30 repetitions at 60, 180 or 300º.s -1 ). Previous studies have related the decline in explosive torque production with a reduction of EMG activity [16,36]. Since agonist EMG is an important determinant of explosive torque [16], the lack of sex differences in neural activation following the completion of the fatiguing dynamic protocols may possibly explain why men and women have similar losses in pRTD, sequential RTD and ETorque, regardless of the contraction velocity.…”

Section: Prtd Sequential Rtd and Etorquementioning

confidence: 99%

Sex Differences in Muscle Fatigue Following Isokinetic Muscle Contractions

Gomes

Santos

Correia

et al. 2020

Preprint

View full text Add to dashboard Cite

Muscle fatigue is a limiting factor of human performance. It is unclear whether sex-based differences in fatigability exist during dynamic exercise of varying velocities of contraction. We aimed at exploring sex differences in muscle fatigue elicited by maximal isokinetic muscle contractions performed at different angular velocities. Twenty-six healthy participants (13 men: 23.2 ± 1.5; 13 women: 21.9 ± 3.0 years) were tested for knee-extension at slow, moderate and fast angular velocity (60, 180 and 300º.s-1, respectively). The impact of sex on fatigue resistance and consecutive recovery for each isokinetic condition was explored by calculating the percent change in maximal voluntary isometric contraction (MVIC) and in rate of torque development (RTD), from pre- to post-isokinetic exercise. The isokinetic fatigue index was also determined. No sex differences were obtained in response to isokinetic contractions completed at 60º.s-1. After performing muscle contractions at 300º.s-1, women had a significantly greater loss in MVIC than men (-18.4 ± 5.5 vs. -12.9 ± 3.8%; p = 0.009) and larger decreases in work output during isokinetic exercise (-34.2 ± 8.9 vs -27.5 ± 10.6 %; p = 0.017). Recovery of initial MVIC strength was greater for women post-exercise at 180º.s-1 (6.7 ± 9.5 vs. 15.6 ± 4.1%; p = 0.003). No differences were found between sexes in any condition for RTD from pre- to post- fatigue. These results suggest the presence of a sexually dimorphic fatigability in response to dynamic (isokinetic) contractions favouring men at higher velocities of contraction.

show abstract

Fatigue-induced dissociation between rate of force development and maximal force across repeated rapid contractions

Cited by 14 publications

References 24 publications

Neuromuscular Fatigue Does Not Impair the Rate of Force Development in Ballistic Contractions of Submaximal Amplitudes

Neuromuscular Fatigue Does Not Impair the Rate of Force Development in Ballistic Contractions of Submaximal Amplitudes

Effects of Different Training Intensity Distribution in Recreational Runners

Sex Differences in Muscle Fatigue Following Isokinetic Muscle Contractions

Contact Info

Product

Resources

About