| 000 | 03398nlm1a2200457 4500 | ||
|---|---|---|---|
| 001 | 658164 | ||
| 005 | 20231030041541.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\25352 | ||
| 035 | _aRU\TPU\network\25095 | ||
| 090 | _a658164 | ||
| 100 | _a20180606a2018 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aGreater fatigability in knee-flexors vs. knee-extensors after a standardized fatiguing protocol _fG. Coratella [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References 38 tit.] | ||
| 330 | _aThe present study aimed to investigate the effects of a standardized fatiguing protocol on central and peripheral fatigue in knee-flexors and knee-extensors. Thirteen healthy men (age: 23 ± 3 years; height: 1.78 ± 0.09 m; body-mass: 73.6 ± 9.2 kg) volunteered for the present study. Maximal voluntary contraction (MVC), Electromyography (EMG) activity, voluntary activation level (VAL) as an index of central fatigue and twitch potentiation as an index of peripheral fatigue were measured before and after the fatiguing protocol. The fatiguing protocol consisted of a 0.6 duty-cycle to exhaustion (6 s isometric contraction, 4 s recovery) at 70% MVC. After the fatiguing protocol, MVC decreased in both (Effect-size (ES) = 1.14) and knee-extensors (ES = 1.14), and EMG activity increased in both knee-flexors (ES = 2.33) and knee- extensors (ES = 1.54). Decreases in VAL occurred in knee-flexors (ES = 0.92) but not in knee-extensors (ES = 0.04). Decreases in potentiation occurred in both knee-flexors (ES = 0.84) and knee-extensors (ES = 0.58). The greater central occurrence of fatigue in knee-flexors than in knee-extensors may depend on the different muscle morphology and coupled with a greater tolerance to fatigue in knee-extensors. The present data add further insight to the complicated knee-flexors- to-knee-extensors strength relationship and the mechanisms behind the different occurrence of fatigue. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tEuropean Journal of Sport Science | ||
| 463 |
_tVol. 18, iss. 5 _v[9 p.] _d2018 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aколени | |
| 610 | 1 | _aутомляемость | |
| 610 | 1 | _aразгибатели | |
| 610 | 1 | _amaximal voluntary contraction | |
| 610 | 1 | _avoluntary activation level | |
| 610 | 1 | _apotentiated twitch | |
| 610 | 1 | _aEMG activity | |
| 701 | 1 |
_aCoratella _bG. _gGiuseppe |
|
| 701 | 1 |
_aGrospretre _bS. _gSidney |
|
| 701 | 1 |
_aGimenez _bP. _gPhilippe |
|
| 701 | 1 |
_aMourot _bL. _cspecialist in the field of physical training and sports _cSenior Researcher of Tomsk Polytechnic University, Candidate of philological sciences _f1977- _gLaurent _2stltpush _3(RuTPU)RU\TPU\pers\41001 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bШкола базовой инженерной подготовки (ШБИП) _bОтделение физической культуры (ОФК) _h8034 _2stltpush _3(RuTPU)RU\TPU\col\23545 |
| 801 | 2 |
_aRU _b63413507 _c20220624 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1080/17461391.2018.1469674 | |
| 942 | _cCF | ||