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Application of the arm-cranking 30-second Wingate Anaerobic Test (the WAnT) to assess power in amputee football players

Nowak Agnieszka M., Molik Bartosz, Kosmol Andrzej, Szczepaniak Mateusz, Marszałek Jolanta

Acta of Bioengineering and Biomechanics

2021

Vol. 23, no. 3

13--23

Purpose: The aim of this work was to determine anaerobic performance in male amputee football players considering types and levels of limb impairment, playing position, anthropometric parameters, and comparing the findings to reference values. Relationship between parameters in the laboratory anaerobic test and the handgrip test was checked. Methods: The 30-second Wingate Anaerobic Test (peak power, mean power, relative peak power, relative mean power, time to achieve peak power, fatigue index) on the arm-crank ergometer (LODE ANGIO), the FUTREX 6100 (Futrex, Gaithersburg, USA) and the handgrip test were used in amputee football players (n = 23). Anthropometric measurements were collected. Results: There were no differences in anaerobic results between players considering types and levels of limb impairment. Forwards had significantly higher relative mean and peak power (p = 0.049, d = 0.82; p = 0.049, d = 0.81), and lower amputation-adjusted body mass index (p = 0.001, d = 1.50) than defenders. For peak power, 19 out 23 achieved, and for relative peak power, 22 out 23 achieved results from “average” to “elite”. Peak power strongly correlated to handgrip strength results. Conclusions: Amputee football requires a high level of power from players. Maintaining appropriate body composition is important for amputee football players to have better anaerobic performance during the game. The 30-second Wingate Anaerobic Test can be used to assess anaerobic performance in AF players. Sport-specific anaerobic performance laboratory tests and field-based tests using in indirect upper limbs’ peak power monitoring would be beneficial for coaches.

Comparison of muscle activity during hand rim and lever wheelchair propulsion over flat terrain

Błażkiewicz Michalina, Wiszomirska Ida, Fiok Krzysztof, Mróz Anna, Kosmol Andrzej, Mikicin Mirosław, Molik Bartosz, Marszałek Jolanta

Acta of Bioengineering and Biomechanics

2019

Vol. 21, no. 3

67--74

The aim of this study was to compare the activity of upper limb muscles during hand rim wheelchair propulsion and lever wheelchair propulsion at two different velocity levels. Methods: Twenty male volunteers with physical impairments participated in this study. Their task was to push a lever wheelchair and a hand rim wheelchair on a mechanical wheelchair treadmill for 4 minutes at a speed of 3.5 km/h and 4.5 km/h in a flat race setting (conditions of moving over flat terrain). During these trials, activity of eight muscles of upper limbs were examined using surface electromyography. Results: The range of motion in the elbow joint was significantly higher in lever wheelchair propulsion (59.8 ± 2.43°) than in hand rim wheelchair propulsion (43.9 ± 0.26°). Such values of kinematics resulted in a different activity of muscles. All the muscles were more active during lever wheelchair propulsion at both velocity levels. The only exceptions were extensor and flexor carpi muscles which were more active during hand rim wheelchair propulsion due to the specificity of a grip. In turn, the examined change in the velocity (by 1 km/h) while moving over flat terrain also caused a different EMG timing of muscle activation depending on the type of propulsion. Conclusions: Lever wheelchair propulsion seems to be a good alternative to hand rim wheelchair propulsion owing to a different movement technique and a different EMG timing of muscle activity. Therefore, we believe that lever wheelchair propulsion should serve as supplement to traditional propulsion.