Investigation on central and peripheral fatigue following the modified Bruce protocol in young healthy men

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Serajian Abdollah; NOURSHAHI MARYAM; Lavavi Emily; ELIASPOUR DARIUSH; RAJABI HAMID; Zakeri Kundlji Roya

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Journal: Journal of Sport and Exercise Physiology Year:2019 | Volume:12 | Issue:1 Page(s): 27-41

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Title

Investigation on central and peripheral fatigue following the modified Bruce protocol in young healthy men

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Keywords

Central and peripheral fatigueQ2

modified Bruce protocolQ2

transcranial magnetic stimulationQ1

M-waveQ1

Abstract

Purpose: Defining the type of fatigue in different activities can increase our knowledge and also help for future studies in this field. Thus, the aim of this study was the investigation on Central and peripheral fatigue following the modified Bruce incremental exhausting protocol in young healthy men. Methods: For this purpose, 16 young healthy men were selected and performed the modified Bruce protocol until volitional exhaustion. transcranial magnetic stimulation (TMS), M-wave, maximal voluntary contraction (MVC) of the tibialis anterior muscle and rate of perceived exertion (RPE) were assessed prior and immediately after exercise. For comparison of changes between groups, independent t-test and for evaluating correlation between variables Pearson’ s correlation coefficient were used. Results: The results showed significant decrease in MVC (12. 5%) and TMS amplitude (10. 2%), but not in M-wave amplitude (1. 75%), immediately after exercise (P<0. 05, t1=3. 78, t2=2. 36). In addition, significant correlation observed between changes in TMS amplitude and MVC forces (P<0. 01, r=-0. 69). Conclusion: These results reflect the important role of central fatigue (reduction in central motor drive) in the force decrement after modified Bruce protocol, while there wasn’ t any significant change in the neuromuscular transmission and action potential propagation. In addition, the exact biochemical mechanisms of fatigue in this protocol need additional investigations.

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APA: Copy

Serajian, Abdollah, NOURSHAHI, MARYAM, Lavavi, Emily, ELIASPOUR, DARIUSH, RAJABI, HAMID, & Zakeri Kundlji, Roya. (2019). Investigation on central and peripheral fatigue following the modified Bruce protocol in young healthy men. PHYSIOLOGY OF SPORT AND PHYSICAL ACTIVITY, 12(1 ), 27-41. SID. https://sid.ir/paper/374437/en

Vancouver: Copy

Serajian Abdollah, NOURSHAHI MARYAM, Lavavi Emily, ELIASPOUR DARIUSH, RAJABI HAMID, Zakeri Kundlji Roya. Investigation on central and peripheral fatigue following the modified Bruce protocol in young healthy men. PHYSIOLOGY OF SPORT AND PHYSICAL ACTIVITY[Internet]. 2019;12(1 ):27-41. Available from: https://sid.ir/paper/374437/en

IEEE: Copy

Abdollah Serajian, MARYAM NOURSHAHI, Emily Lavavi, DARIUSH ELIASPOUR, HAMID RAJABI, and Roya Zakeri Kundlji, “Investigation on central and peripheral fatigue following the modified Bruce protocol in young healthy men,” PHYSIOLOGY OF SPORT AND PHYSICAL ACTIVITY, vol. 12, no. 1 , pp. 27–41, 2019, [Online]. Available: https://sid.ir/paper/374437/en

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