Force Increase in a Repetitive Motor Task Inducing Motor Fatigue

Rönnefarth, Maria; Bathe-Peters, R.; Jooß, A.; Haberbosch, Linus; Scholz, Michael; Brandt, Stephan A.

doi:10.1080/00222895.2018.1495172

Cited by 3 publications

(4 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the present study, a linear increase in mean ITIs and finger taps during electrical- and sham stimulation represents task-induced motor fatigue (Rönnefarth et al, 2018). Fatigue inevitably occurs within seconds of task initiation (Shimoyama et al, 1990; Aoki et al, 2003; Rönnefarth et al, 2018). It involves not only peripheral, but also central mechanisms (central motor fatigue) as evidenced by reduced CSE after a fatiguing task (Kluger et al, 2012).…”

Section: Discussionmentioning

confidence: 76%

“…Additionally, maximum task-related activation of M1 is thought to leave no room for further performance gains, especially in early stages of motor learning (Bezzola et al, 2012). Other measures of FT task performance, e.g., force and tapping duration might expose tRNS-specific behavioral gains with higher sensitivity (Muellbacher et al, 2001; Rönnefarth et al, 2018). Providing evidence for neuromodulation of motor learning would be particularly relevant in the context of novel interventions following brain injury (Pascual-Leone et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

“…For the first block, the starting hand was randomly allocated and the tapping duration for one hand was 30 s before switching to the other hand for 30 s (Schulze et al, 2002). Two blocks for each hand (i.e., 4 × 30 s = 2 min) were followed by a 120 s pause (60 s pause during stimulation) to avoid excessive build-up of fatigue (Rönnefarth et al, 2018). As another precaution, the vertical force required to complete a tapping motion was adjusted to the lowest possible setting.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Motor Task-Dependent Dissociated Effects of Transcranial Random Noise Stimulation in a Finger-Tapping Task Versus a Go/No-Go Task on Corticospinal Excitability and Task Performance

et al. 2019

Self Cite

View full text Add to dashboard Cite

Background and Objective: Transcranial random noise stimulation (tRNS) is an emerging non-invasive brain stimulation technique to modulate brain function, with previous studies highlighting its considerable benefits in therapeutic stimulation of the motor system. However, high variability of results and bidirectional task-dependent effects limit more widespread clinical application. Task dependency largely results from a lack of understanding of the interaction between externally applied tRNS and the endogenous state of neural activity during stimulation. Hence, the aim of this study was to investigate the task dependency of tRNS-induced neuromodulation in the motor system using a finger-tapping task (FT) versus a go/no-go task (GNG). We hypothesized that the tasks would modulate tRNS’ effects on corticospinal excitability (CSE) and task performance in opposite directions. Methods: Thirty healthy subjects received 10 min of tRNS of the dominant primary motor cortex in a double-blind, sham-controlled study design. tRNS was applied during two well-established tasks tied to diverging brain states. Accordingly, participants were randomly assigned to two equally-sized groups: the first group performed a simple motor training task (FT task), known primarily to increase CSE, while the second group performed an inhibitory control task (go/no-go task) associated with inhibition of CSE. To establish task-dependent effects of tRNS, CSE was evaluated prior to- and after stimulation with navigated transcranial magnetic stimulation. Results: In an ‘activating’ motor task, tRNS during FT significantly facilitated CSE. FT task performance improvements, shown by training-related reductions in intertap intervals and increased number of finger taps, were similar for both tRNS and sham stimulation. In an ‘inhibitory’ motor task, tRNS during GNG left CSE unchanged while inhibitory control was enhanced as shown by slowed reaction times and enhanced task accuracy during and after stimulation. Conclusion: We provide evidence that tRNS-induced neuromodulatory effects are task-dependent and that resulting enhancements are specific to the underlying task-dependent brain state. While mechanisms underlying this effect require further investigation, these findings highlight the potential of tRNS in enhancing task-dependent brain states to modulate human behavior.

show abstract

Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Motor Task-Dependent Dissociated Effects of Transcranial Random Noise Stimulation in a Finger-Tapping Task Versus a Go/No-Go Task on Corticospinal Excitability and Task Performance

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…www.nature.com/scientificreports/ Furthermore, the shorter KTT in HLP progressively decelerated across consecutive parts. The most common explanation in the literature of the increase of KTT is that it is due to muscle fatigue reflected in reduced temporal control of motor acts 44 . A similar observation was reported by Hubel 24 , who noticed a great increase of KTT over a 30 s tapping period in young individuals.…”

Section: Discussionmentioning

confidence: 99%

A common timing mechanism across different millisecond domains: evidence from perceptual and motor tasks

Stanczyk,

Szelag,

Krystecka

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Temporal information processing (TIP) constitutes a complex construct that underlies many cognitive functions and operates in a few hierarchically ordered time domains. This study aimed to verify the relationship between the tens of milliseconds and hundreds of milliseconds domains, referring to perceptual and motor timing, respectively. Sixty four young healthy individuals participated in this study. They underwent two auditory temporal order judgement tasks to assess their performance in the tens of milliseconds domain; on this basis, groups of high-level performers (HLP) and low-level performers (LLP) were identified. Then, a maximum tapping task was used to evaluate performance in the hundreds of milliseconds domain. The most remarkable result was that HLP achieved a faster tapping rate and synchronised quicker with their “internal clock” during the tapping task than did LLP. This result shows that there is a relationship between accuracy in judging temporally asynchronous stimuli and ability to achieve and maintain the pace of a movement adequate to one’s internal pacemaker. This could indicate the strong contribution of a common timing mechanism, responsible for temporal organisation and coordination of behaviours across different millisecond domains.

show abstract

Effect of arm cycling and task-oriented exercises on fatigue and upper limb performance in multiple sclerosis: a randomized crossover study

Gervasoni

Cattaneo

Bertoni

et al. 2019

International Journal of Rehabilitation Research

View full text Add to dashboard Cite

Rehabilitation treatments have been proven to be a viable way to reduce fatigue and upper limb impairments in people with multiple sclerosis (PwMS). Our aim was to examine which treatment has better short-term and carryover effects on fatigue and manual dexterity in multiple sclerosis population. Twenty PwMS participated in a 16-week randomized crossover study composed of 20 sessions. The participants were divided into two groups (group A and group B). Sessions containing combined arm cycling and task-oriented exercises were administered by a physical therapist in hospital setting. Each group received 20 sessions of aerobic training and task-oriented exercises and then an 8-week rest period or vice versa with group A receiving sessions first. Fatigue was assessed by using the Modified Fatigue Impact Scale (MFIS) and Motor Fatigability Index (MFI), which was assessed using an engineered glove during a fatiguing finger tapping task. To measure manual dexterity, the nine hole peg test (NHPT) and a rate of tapping at maximum velocity task (RATE-MV) were utilized. Treatment effects were assessed by t-test or Mann–Whitney test at the end of both periods checking for carryover effects. After treatment the combined (Groups A and B) between-period differences were MFIS: 5.2 (10.7) points, P = 0.05; MFI: −0.007 (<0.001)Hz/s, P = 0.05 and RATE-MV: 0.2 (0.4) Hz/s, P = 0.05 in favor of the treatment period. No statistically significant between-period differences were found for the NHPT: 3.6 (25.0) s, P = 0.63. No carryover effects (P > 0.05) were observed. In conclusion, sessions of arm cycling and tailored task-oriented exercises have shown to be a viable resource for treating manual dexterity and fatigue in PwMS.

show abstract

Force Increase in a Repetitive Motor Task Inducing Motor Fatigue

Cited by 3 publications

References 29 publications

Motor Task-Dependent Dissociated Effects of Transcranial Random Noise Stimulation in a Finger-Tapping Task Versus a Go/No-Go Task on Corticospinal Excitability and Task Performance

Motor Task-Dependent Dissociated Effects of Transcranial Random Noise Stimulation in a Finger-Tapping Task Versus a Go/No-Go Task on Corticospinal Excitability and Task Performance

A common timing mechanism across different millisecond domains: evidence from perceptual and motor tasks

Effect of arm cycling and task-oriented exercises on fatigue and upper limb performance in multiple sclerosis: a randomized crossover study

Contact Info

Product

Resources

About