A single high-intensity exercise bout during early consolidation does not influence retention or relearning of sensorimotor locomotor long-term memories
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A single exercise bout has been found to improve the retention of a skill-based upper extremity motor task up to a week post-practice. This effect is the greatest when exercise intensity is high and exercise is administered immediately after motor practice (i.e., early in consolidation). Whether exercise can affect other motor learning types (e.g., sensorimotor adaptation) and tasks (e.g., walking) is still unclear as previous studies have not optimally refined the exercise parameters and long-term retention testing. Therefore, we investigated whether a single high-intensity exercise bout during early consolidation would improve the long-term retention and relearning of sensorimotor adaptation during split-belt treadmill walking. Twenty-six neurologically intact adults attended three sessions; sessions 2 and 3 were 1 day and 7 days after session 1, respectively. Participants were allocated either to Rest (REST) or to Exercise (EXE) group. In session 1, all groups walked on a split-belt treadmill in a 2:1 speed ratio (1.5:0.75 m/s). Then, half of the participants exercised for 5 min (EXE), while the other half rested for 5 min (REST). A short exercise bout during early consolidation did not improve retention or relearning of locomotor memories one or seven days after session 1. This result reinforces previous findings that the effect of exercise on motor learning may differ between sensorimotor locomotor adaptation and skilled-based upper extremity tasks; thus, the utility of exercise as a behavioral booster of motor learning may depend on the type of motor learning and task.
KeywordsSensorimotor adaptation Behavioral priming Consolidation Multiday motor learning Walking Gait rehabilitation
The authors thank all participants and undergraduate student volunteers for their assistance during data collections. This material is the result of work supported in part by the National Institute of Health 1R01HD078330-01A1 and S10RR028114- 01A1.
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Conflict of interest
The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Dudai Y (2012) The restless engram: consolidations never end. Annu Rev Neurosci 35:227–247. https://doi.org/10.1146/annurev-neuro-062111-150500 CrossRefPubMedGoogle Scholar
- Mang CS, Campbell KL, Ross CJ, Boyd LA (2013) Promoting neuroplasticity for motor rehabilitation after stroke: considering the effects of aerobic exercise and genetic variation on brain-derived neurotrophic factor. Phys Ther 93:1707–1716. https://doi.org/10.2522/ptj.20130053 CrossRefPubMedPubMedCentralGoogle Scholar
- Mang CS, Snow NJ, Campbell KL, Ross CJD, Boyd LA (2014) A single bout of high-intensity aerobic exercise facilitates response to paired associative stimulation and promotes sequence-specific implicit motor learning. J Appl Physiol 117:1325–1336. https://doi.org/10.1152/japplphysiol.00498.2014 CrossRefPubMedPubMedCentralGoogle Scholar
- Meehan SK, Zabukovec JR, Dao E, Cheung KL, Linsdell MA, Boyd LA (2013) One hertz repetitive transcranial magnetic stimulation over dorsal premotor cortex enhances offline motor memory consolidation for sequence-specific implicit learning. Eur J Neurosci 38:3071–3079. https://doi.org/10.1111/ejn.12291 CrossRefPubMedPubMedCentralGoogle Scholar
- Ostadan F, Centeno C, Daloze JF, Frenn M, Lundbye-Jensen J, Roig M (2016) Changes in corticospinal excitability during consolidation predict acute exercise-induced off-line gains in procedural memory. Neurobiol Learn Mem 136:196–203. https://doi.org/10.1016/j.nlm.2016.10.009 CrossRefPubMedGoogle Scholar
- Pescatello LS (2014) ACSM’s guidelines for exercise testing and prescription. Wolters Kluwer Health, PhiladelphiaGoogle Scholar