Specific interpretation of augmented feedback changes motor performance and cortical processing

Lauber, Benedikt; Keller, Martin B.; Leukel, Christian; Gollhofer, Albert; Taube, Wolfgang

doi:10.1007/s00221-013-3482-8

Cited by 11 publications

(13 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The feedback specifically guides an individual on how to achieve a desired movement related to their performance, which is increasingly important when a specific technique is the focus of an intervention. Using results from CI2Area, it can be ascertained that the BFb intervention does indeed guide skill exploration as suggested in previous research (Lauber et al, 2013). The continual increase in CI2Area also highlights the increasing exploration throughout the six-month intervention period, which supports that a reducing BFb schedule does not lead to dependency whereby exploration ceases.…”

Section: Discussionsupporting

confidence: 66%

Quantifying bi-variate coordination variability during longitudinal motor learning of a complex skill

Mulloy

Irwin

Williams

et al. 2019

Journal of Biomechanics

View full text Add to dashboard Cite

Biofeedback (BFb) can enhance the motor learning process by guiding skill exploration. Too much BFb, however, can foster dependency leading to skill retention deficits once removed. A reducing BFb schedule could negate dependency effects, however limited methodologies exist to assess the effectiveness of an intervention during application. This research proposes a new bi-variate method (CI2Area) to quantify coordination variability (CoordVar) as a measure of skill exploration during a motor learning intervention. Thirty-two participants were introduced to a novel explosivelunge task. A BFb group (n=16) were provided with visual BFb on rear hip, knee and ankle joint extension magnitudes and timing during a 26-week reducing schedule BFb intervention. CoordVar of hip-knee and knee-ankle angular velocities were quantified by calculating the area encompassed by the 95% confidence intervals of joint coupling angular-velocity bi-variate plots (CI2Area). Linear regressions were fitted to group and individual CoordVar longitudinal data. The BFb was effective in successfully altering whole limb technique within just two sessions, and these changes were retained. The BFb group demonstrated a continual increase of CoordVar throughout the intervention, showing continual skill exploration strategies, while the Control group remained unchanged. Gradually increasing time between sessions, using a longitudinally reducing BFb schedule, successfully negates dependency effects on BFb while also encouraging motor learning. Manipulating time between sessions allows for the provision of a high frequency of 100% BFb without fostering dependency. The CI2Area method was able to detect individual exploration strategies and could be used in the future to direct individual intervention modifications.

show abstract

Section: Discussionsupporting

confidence: 66%

Quantifying bi-variate coordination variability during longitudinal motor learning of a complex skill

Mulloy

Irwin

Williams

et al. 2019

Journal of Biomechanics

View full text Add to dashboard Cite

show abstract

“…SubTMS elicits a suppression of the ongoing EMG activity, which can be compared in terms of duration and amount as shown in previous research (Lauber et al . , , Papegaaij et al . ).…”

mentioning

confidence: 99%

Adopting an external focus of attention alters intracortical inhibition within the primary motor cortex

et al. 2016

View full text Add to dashboard Cite

AimAlthough it is well established that an external (EF) compared to an internal (IF) or neutral focus of attention enhances motor performance, little is known about the underlying neural mechanisms. This study aimed to clarify whether the focus of attention influences not only motor performance but also activity of the primary motor cortex (M1) when executing identical fatiguing tasks of the right index finger (first dorsal interosseous). Transcranial magnetic stimulation (TMS) at intensities below motor threshold was applied over M1 to assess and compare the excitability of intracortical inhibitory circuits.MethodsIn session 1, 14 subjects performed an isometric finger abduction at 30% of their maximal force to measure the time to task failure (TTF) with either an IF or EF. In session 2, the same task was performed with the other focus. In sessions 3 and 4, subthreshold TMS (subTMS) and paired‐pulse TMS were applied to the contralateral M1 to compare the activity of cortical inhibitory circuits within M1 during EF and IF.ResultsWith an EF, TTF was significantly prolonged (P = 0.01), subTMS‐induced electromyographical suppression enhanced (P = 0.001) and short‐interval intracortical inhibition (SICI) increased (P = 0.004).ConclusionThe level of intracortical inhibition was previously shown to influence motor performance. Our data shed new light on the ability to instantly modulate the activity of inhibitory circuits within M1 by changing the type of attentional focus. The increased inhibition with EF might contribute to the better movement efficiency, which is generally associated with focusing externally.

show abstract

“…However, as long as the underlying mechanism of how aF affects motor performance is not fully understood, best practices cannot be defined. 4 Given the inconclusive findings and recommendations in the literature on the frequency of aF and how this relates to the type of feedback and task complexity, we do not overemphasize this as a drawback. Third, one could object that performance improvement was not assessed in an isolated baseline and follow-up maximal test.…”

Section: Practical Applicationsmentioning

confidence: 98%

“…The use of aF has previously been shown to improve motor performance in the short and long term. [2][3][4] However, aF only seems beneficial when it provides information in addition to subjective perception. 1,5 It has been reported that aF is particularly efficient for fast movements, because the faster the movement velocity and the smaller the difference between movement sequences, the more difficult it is to differentiate between good and less-good performances based on task-intrinsic sensory feedback.…”

mentioning

confidence: 99%

Positive Effects of Augmented Feedback to Reduce Time on Ground in Well-Trained Runners

Gilgen-Ammann¹,

Wyss²,

Troesch³

et al. 2018

International Journal of Sports Physiology and Performance

Self Cite

View full text Add to dashboard Cite

show abstract

Specific interpretation of augmented feedback changes motor performance and cortical processing

Cited by 11 publications

References 22 publications

Quantifying bi-variate coordination variability during longitudinal motor learning of a complex skill

Quantifying bi-variate coordination variability during longitudinal motor learning of a complex skill

Adopting an external focus of attention alters intracortical inhibition within the primary motor cortex

Positive Effects of Augmented Feedback to Reduce Time on Ground in Well-Trained Runners

Contact Info

Product

Resources

About