Fatigue when learning motor skills: When does it matter? Can it help?
学习运动技能时的疲劳:什么时候很重要?
基本信息
- 批准号:RGPIN-2022-04572
- 负责人:
- 金额:$ 1.89万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Discovery Grants Program - Individual
- 财政年份:2022
- 资助国家:加拿大
- 起止时间:2022-01-01 至 2023-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Whether it is in sports, at work or during rehabilitation, developing motor skills require the repetition of hundreds to thousands of movements. Such intensive training often leads to the development of fatigue. Our current understanding of the interactions between fatigue and motor learning remains limited. When does fatigue hinder motor learning? When can it help? Do motor skills learnt with fatigue transfer to testing conditions when an individual is rested? The long-term objective of my research program is to understand the interactions between fatigue and motor learning. Such knowledge is essential for coaches and therapists across Canada to optimize motor learning interventions. During the next five years, I will test the hypothesis that individuals experiencing fatigue during training will learn motor adaptation strategies to compensate for effects of fatigue on the sensorimotor system. These strategies will develop mostly if they contribute to a better performance during training. The impact of these strategies on performance when the individual is rested will depend on task characteristics. My first objective is to evaluate if penalising motor adaptations to fatigue during training will prevent their acquisition, retention and transfer. One of the most frequent motor adaptations to shoulder fatigue is an increase in trunk movements. Some authors believe that these adaptations are favourable while in other contexts they may be unwanted. Are these motor adaptations retained when a trainee learns new motor skills with fatigue? Is it possible for coaches and therapists to adjust training conditions so helpful adaptations are promoted while negative ones are discouraged? To evaluate this hypothesis, participants will train to a sequential shoulder abduction task with or without fatigue. For some participants, trunk movements will contribute to their performance while, for others, they will make the task more difficult. My second objective is to determine if fatigue experienced when learning to propel a wheelchair will lead to better propulsion techniques. During wheelchair propulsion, a greater involvement of trunk movements is advocated by training programs, is observed in expert users and is associated with a lower risk of developing shoulder pain. Learning to propel a wheelchair while experiencing shoulder fatigue may therefore lead to the development of better propulsion techniques. However, this favourable effect would be cancelled out if trunk movements are constraints as it would prevent the use of fatigue-induced motor adaptations. For this objective, healthy individuals will learn to propel a wheelchair at maximal speed on an ergometer while experiencing shoulder fatigue, or not. For some participants, trunk will be immobilised. In all studies, motor adaptations and performance will be evaluated with kinematic and electromyographic data during skill acquisition, retention and transfer. Sex sensitive analyses will be used.
无论是在运动中,在工作中还是在康复过程中,发展运动技能都需要重复成百上千个动作。如此高强度的训练常常导致疲劳。我们目前对疲劳和运动学习之间的相互作用的理解仍然有限。什么时候疲劳会阻碍运动学习?什么时候能帮上忙?当一个人休息时,在疲劳状态下学到的运动技能是否可以转移到测试条件下?我的研究项目的长期目标是了解疲劳和运动学习之间的相互作用。这些知识对于加拿大各地的教练和治疗师优化运动学习干预至关重要。在接下来的五年里,我将测试在训练中经历疲劳的个体将学习运动适应策略来补偿疲劳对感觉运动系统的影响的假设。如果这些策略有助于在训练中取得更好的表现,它们将得到很大程度的发展。当个体休息时,这些策略对绩效的影响取决于任务特征。我的第一个目标是评估在训练中惩罚运动对疲劳的适应是否会阻止它们的获得、保留和转移。肩部疲劳最常见的运动适应之一是躯干运动的增加。一些作者认为,这些适应是有利的,而在其他情况下,它们可能是不必要的。当受训者在疲劳中学习新的运动技能时,这些运动适应是否保留?教练和治疗师是否有可能调整训练条件,促进有益的适应,而不鼓励消极的适应?为了评估这一假设,参与者将在有或没有疲劳的情况下进行连续的肩外展任务训练。对一些参与者来说,躯干运动有助于他们的表现,而对另一些人来说,它们会使任务变得更加困难。我的第二个目标是确定学习推动轮椅时所经历的疲劳是否会导致更好的推进技术。在轮椅推进过程中,训练项目提倡更多的躯干运动,在专业使用者中观察到,这与发生肩部疼痛的风险较低有关。因此,在经历肩部疲劳的情况下学习推动轮椅可能会导致更好的推进技术的发展。然而,如果躯干运动受到限制,这种有利的效果就会被抵消,因为它会阻止疲劳引起的运动适应的使用。为了达到这个目的,健康的人将学会在肩部疲劳或不疲劳的情况下,在测力器上以最大速度推动轮椅。部分参加者的行李箱将无法移动。在所有的研究中,运动适应和表现将在技能习得、保留和转移期间通过运动学和肌电图数据进行评估。将使用性别敏感分析。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Bouffard, Jason其他文献
Tonic Pain Experienced during Locomotor Training Impairs Retention Despite Normal Performance during Acquisition
- DOI:
10.1523/jneurosci.5303-13.2014 - 发表时间:
2014-07-09 - 期刊:
- 影响因子:5.3
- 作者:
Bouffard, Jason;Bouyer, Laurent J.;Mercier, Catherine - 通讯作者:
Mercier, Catherine
Development and reliability of a measure evaluating dynamic proprioception during walking with a robotized ankle-foot orthosis, and its relation to dynamic postural control
- DOI:
10.1016/j.gaitpost.2016.07.013 - 发表时间:
2016-09-01 - 期刊:
- 影响因子:2.4
- 作者:
Belley, Amelie Fournier;Bouffard, Jason;Bouyer, Laurent - 通讯作者:
Bouyer, Laurent
Sex differences in glenohumeral muscle activation and coactivation during a box lifting task
- DOI:
10.1080/00140139.2019.1640396 - 发表时间:
2019-07-18 - 期刊:
- 影响因子:2.4
- 作者:
Bouffard, Jason;Martinez, Romain;Begon, Mickael - 通讯作者:
Begon, Mickael
Sex differences in kinematic adaptations to muscle fatigue induced by repetitive upper limb movements
- DOI:
10.1186/s13293-018-0175-9 - 发表时间:
2018-04-19 - 期刊:
- 影响因子:7.9
- 作者:
Bouffard, Jason;Yang, Chen;Cote, Julie - 通讯作者:
Cote, Julie
Changes in movement variability and task performance during a fatiguing repetitive pointing task
- DOI:
10.1016/j.jbiomech.2018.05.025 - 发表时间:
2018-07-25 - 期刊:
- 影响因子:2.4
- 作者:
Yang, Chen;Bouffard, Jason;Cote, Julie N. - 通讯作者:
Cote, Julie N.
Bouffard, Jason的其他文献
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{{ truncateString('Bouffard, Jason', 18)}}的其他基金
Fatigue when learning motor skills: When does it matter? Can it help?
学习运动技能时的疲劳:什么时候很重要?
- 批准号:
DGECR-2022-00302 - 财政年份:2022
- 资助金额:
$ 1.89万 - 项目类别:
Discovery Launch Supplement
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Fatigue when learning motor skills: When does it matter? Can it help?
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