| Author/Editor | Strojnik, Vojko; Strass, Dieter | |
| Title | Effects of superimposed submaximal electrical stimulation on explosive movements during fatigue | |
| Translated title | Vpliv dodatne podpražne električne stimulacije na eksplozivna gibanja pri utrujenosti | |
| Type | članek | |
| Source | Kinesiologia Slovenica | |
| Vol. and No. | Letnik 3, št. 1 | |
| Publication year | 1997 | |
| Volume | str. 8-12 | |
| Language | eng | |
| Abstract | The aim of the study was to evaluate the influence of superimposed electrical stimulation (ES) of muscles on movements during fatigue. Ten male students of physical education performed a series of maximal explosive pushes with the right arm against weight in a vertical direction. A specially constructed apparatus was used to control both the loads and direction of the movements. The pushes against 66% of maximal voluntary isometric force (MVC) load were executed every two seconds. When fatigue was observed (after 8 to 12 pushes) a superimposed ES of m. triceps brachii (MTB) was performed for the next two pushes. The vertical forces acting on the weight were recorded for the first push, the last push before ES, the push inthe middle between these two and for both pushes with ES. Results showed that dynamic force peaks, as well as force impulses in the first 200 msec after force onset, were strongly influenced by fatigue. On the other hand, the maximal vertical velocity of the weight at the first push with ES was significantly greater (p < 0.01) that for those before. The greates effect was observed during the second half of the movement at high elbow extension. In the first pushes (with no fatigue) the first part of the workout seemed to be more important, while of the workout seemed to be more important, while with fatigue and especially during ES, the force impulses were distributed more equally throughout the whole path which caused the greater maximal velocity at the end. It was concluded that superimposed ES of MTB effected maximal explosive movements. | |
| Descriptors | MUSCLE CONTRACTION MUSCLE FATIGUE ELECTRIC STIMULATION ELBOW JOINT ADULT STUDENTS WEIGHT-BEARING ARM |