cSPider – Evaluation of a Free and Open-Source Automated Tool to Analyze Corticomotor Silent Period

Wilke, Skadi; Groenveld, Dennis; Grittner, Ulrike; List, Jonathan; Flöel, Agnes

doi:10.1371/journal.pone.0156066

Cited by 3 publications

(3 citation statements)

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“…Corticomotor inhibition in the current study was quantified manually by two independent raters. Manual assessment of silent period duration is thought to be less objective than automated methods which may affect inter-rater reliability [ 43 ]. Our findings show excellent agreement between raters, suggesting that adopting a standardised approach to quantify silent period duration can ensure high repeatability across researchers.…”

Section: Discussionmentioning

confidence: 99%

“…Our findings show excellent agreement between raters, suggesting that adopting a standardised approach to quantify silent period duration can ensure high repeatability across researchers. Furthermore, it is likely that manual and automated methods are comparable to each other, as published evidence show good levels of agreement for the procedures [ 43 , 44 ]. Ultimately, manual quantification of silent period is more time consuming; future studies should consider using automated methods, especially as freely available tools to do so are becoming more common [ 43 ].…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, it is likely that manual and automated methods are comparable to each other, as published evidence show good levels of agreement for the procedures [ 43 , 44 ]. Ultimately, manual quantification of silent period is more time consuming; future studies should consider using automated methods, especially as freely available tools to do so are becoming more common [ 43 ]. Lastly, we acknowledge that the group-level findings provided in this study do not necessarily translate to reliability at an individual basis.…”

Section: Discussionmentioning

confidence: 99%

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The Reliability of Transcranial Magnetic Stimulation-Derived Corticomotor Inhibition as a Brain Health Evaluation Tool in Soccer Players

et al. 2022

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Background The suitability of corticomotor inhibition and corticospinal excitability to measure brain health outcomes and recovery of sport-related head impact (concussion and subconcussion) depends on good inter-day reliability, which is evaluated in this study. Transcranial magnetic stimulation (TMS) reliability in soccer players is assessed by comparing soccer players, for whom reliability on this measure may be reduced due to exposure to head impacts, to generally active individuals not engaged in contact sport. Methods TMS-derived corticomotor inhibition and corticospinal excitability were recorded from the rectus femoris muscle during two testing sessions, spaced 1–2 weeks apart in 19 soccer players (SOC—age 22 ± 3 years) and 20 generally active (CON—age 24 ± 4 years) healthy volunteers. Inter-day reliability between the two time points was quantified by using intra-class correlation coefficients (ICC). Intra-group reliability and group differences on actual measurement values were also explored. Results Good inter-day reliability was evident for corticomotor inhibition (ICCSOC = 0.61; ICCCON = 0.70) and corticospinal excitability (ICCSOC = 0.59; ICCCON = 0.70) in both generally active individuals and soccer players routinely exposed to sport-related head impacts. Corticomotor inhibition showed lower coefficients of variation than excitability for both groups (InhibSOC = 15.2%; InhibCON = 9.7%; ExcitabSOC = 41.6%; ExcitabCON = 39.5%). No group differences between soccer players and generally active individuals were found on the corticomotor inhibition value (p > 0.05), but levels of corticospinal excitability were significantly lower in soccer players (45.1 ± 20.8 vs 85.4 ± 6.2%Mmax, p < 0.0001). Corticomotor inhibition also showed excellent inter-rater reliability (ICC = 0.87). Conclusions Corticomotor inhibition and corticospinal excitability are stable and maintain good degrees of reliability when assessed over different days in soccer players, despite their routine exposure to head impacts. However, based on intra-group reliability and group differences of the levels of excitability, we conclude that corticomotor inhibition is best suited for the evaluation of neuromuscular alterations associated with head impacts in contact sports.

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Section: Discussionmentioning

confidence: 99%