101
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The Effect of Acute Aerobic Exercise on Divergent and Convergent Thinking and Its Influence by Mood. Brain Sci 2021; 11:brainsci11050546. [PMID: 33925304 PMCID: PMC8145661 DOI: 10.3390/brainsci11050546] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 02/07/2023] Open
Abstract
Abundant evidence shows that various forms of physical exercise, even conducted briefly, may improve cognitive functions. However, the effect of physical exercise on creative thinking remains under-investigated, and the role of mood in this effect remains unclear. In the present study, we set out to investigate the effect of an acute bout of aerobic exercise on divergent and convergent thinking and whether this effect depends on the post-exercise mood. Forty healthy young adults were randomly assigned to receive a 15-min exercise or control intervention, before and after which they conducted an alternate use test measuring divergent thinking and an insight problem-solving task measuring convergent thinking. It was found that exercise enhanced divergent thinking in that it increased flexibility and fluency. Importantly, these effects were not mediated by the post-exercise mood in terms of pleasure and vigor. In contrast, the effect on convergent thinking depended on subjects' mood after exercise: subjects reporting high vigor tended to solve more insight problems that were unsolved previously, while those reporting low vigor became less capable of solving previously unsolved problems. These findings suggest that aerobic exercise may affect both divergent and convergent thinking, with the former being mood-independent and the latter mood-dependent. If these findings can be replicated with more rigorous studies, engaging in a bout of mood, particularly vigor-enhancing aerobic exercise, may be considered a useful strategy for gaining insights into previously unsolved problems.
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102
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Loprinzi PD, Day S, Hendry R, Hoffman S, Love A, Marable S, McKee E, Stec S, Watson H, Gilliland B. The Effects of Acute Exercise on Short- and Long-Term Memory: Considerations for the Timing of Exercise and Phases of Memory. EUROPES JOURNAL OF PSYCHOLOGY 2021; 17:85-103. [PMID: 33737976 PMCID: PMC7957845 DOI: 10.5964/ejop.2955] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 05/17/2020] [Indexed: 12/22/2022]
Abstract
The specific questions addressed from this research include: (1) Does high-intensity acute exercise improve memory?, (2) If so, do the mechanisms occur via encoding, consolidation, or retrieval? and (3) If acute exercise occurs in multiple phases of memory (e.g., before encoding and during consolidation), does this have an additive effect on memory? Three experimental, within-subject, counterbalanced studies were conducted among young adults. High-intensity exercise involved a 20-minutes bout of exercise at 75% of heart rate reserve. Memory was evaluated from a word-list task, including multiple evaluations out to 24-hours post-encoding. The timing of the exercise and memory assessments were carefully positioned to evaluate whether any improvements in memory were driven by mechanisms related to encoding, consolidation, and/or retrieval. We demonstrated that high-intensity acute exercise enhanced memory. This effect was robust (repeatable) and occurred through encoding, consolidation and retrieval-based mechanisms. Further, incorporating acute exercise into multiple phases of memory additively enhanced memory function.
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Affiliation(s)
- Paul D Loprinzi
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS, USA
| | - Sierra Day
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS, USA
| | - Rebecca Hendry
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS, USA
| | - Sara Hoffman
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS, USA
| | - Alexis Love
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS, USA
| | - Sarah Marable
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS, USA
| | - Elizabeth McKee
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS, USA
| | - Sydney Stec
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS, USA
| | - Hanna Watson
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS, USA
| | - Brittney Gilliland
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS, USA
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103
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Okano S, Nishizawa H, Yui J, Yokokawa Y, Koinuma M, Nakamura A. Convergent validity of a simplified device and relationship between blood lactate and salivary lactate after a vertical squat jump in healthy non-athletes. J Phys Ther Sci 2021; 33:187-193. [PMID: 33814702 PMCID: PMC8012186 DOI: 10.1589/jpts.33.187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/01/2020] [Indexed: 11/28/2022] Open
Abstract
[Purpose] The aims of this study were 1) to examine the convergent validity between
Lactate pro 2 and a standard JCA-BM 8000 automatic analyzer using salivary lactate and 2)
to investigate the relationship between blood and salivary lactate levels after a vertical
squat jump. [Participants and Methods] Healthy non-athletes participated in this
observational study. The participants performed a vertical squat jump for 1 min 30 s.
Blood and salivary lactate levels were measured before and after exercise using Lactate
Pro 2. [Results] The intraclass correlation coefficient between Lactate Pro 2 and the
JCA-BM 8000 automatic analyzer was 0.773, which can be considered as substantial
convergent validity. However, in some samples, the salivary lactate level was out of the
measurable range, and numerical values could not be obtained. The cross-correlation
function between the blood and salivary lactate levels was 0.535 at lag 0 and 0.750 at lag
1, which indicated a 5-min lag between the salivary and blood lactate values. [Conclusion]
Salivary lactate levels can be easily measured using Lactate Pro 2, although its
sensitivity needs to be resolved. Further research is required for salivary lactate level,
which can be collected non-invasively, to be used as an alternative parameter to blood
lactate level.
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Affiliation(s)
- Satomi Okano
- Graduate School of Medicine, Shinshu University, Japan.,Department of Physical Therapy, Faculty of Health Sciences, Iryo Sosei University, Japan
| | - Hitomi Nishizawa
- School of Health Sciences, Faculty of Medicine, Shinshu University, Japan
| | - Joya Yui
- Graduate School of Medicine, Shinshu University, Japan
| | | | - Yoshiharu Yokokawa
- School of Health Sciences, Faculty of Medicine, Shinshu University, Japan
| | - Masayoshi Koinuma
- Center of Clinical Research, Shinshu University Hospital, Japan.,Faculty of Pharmaceutical Sciences, Teikyo Heisei University, Japan
| | - Akinori Nakamura
- Third Department of Medicine, Shinshu University School of Medicine: 3-1-1 Asahi, Matsumoto, Nagano 390-0802, Japan.,Department of Clinical Research, National Hospital Organization Matsumoto Medical Center, Japan
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104
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Park HB, Ahn S, Zhang W. Visual search under physical effort is faster but more vulnerable to distractor interference. COGNITIVE RESEARCH-PRINCIPLES AND IMPLICATIONS 2021; 6:17. [PMID: 33710497 PMCID: PMC7977006 DOI: 10.1186/s41235-021-00283-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 03/02/2021] [Indexed: 11/15/2022]
Abstract
Cognition and action are often intertwined in everyday life. It is thus pivotal to understand how cognitive processes operate with concurrent actions. The present study aims to assess how simple physical effort operationalized as isometric muscle contractions affects visual attention and inhibitory control. In a dual-task paradigm, participants performed a singleton search task and a handgrip task concurrently. In the search task, the target was a shape singleton among distractors with a homogeneous but different shape. A salient-but-irrelevant distractor with a unique color (i.e., color singleton) appeared on half of the trials (Singleton distractor present condition), and its presence often captures spatial attention. Critically, the visual search task was performed by the participants with concurrent hand grip exertion, at 5% or 40% of their maximum strength (low vs. high physical load), on a hand dynamometer. We found that visual search under physical effort is faster, but more vulnerable to distractor interference, potentially due to arousal and reduced inhibitory control, respectively. The two effects further manifest in different aspects of RT distributions that can be captured by different components of the ex-Gaussian model using hierarchical Bayesian method. Together, these results provide behavioral evidence and a novel model for two dissociable cognitive mechanisms underlying the effects of simple muscle exertion on the ongoing visual search process on a moment-by-moment basis.
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Affiliation(s)
- Hyung-Bum Park
- Department of Psychology, University of California, Riverside, USA.
| | - Shinhae Ahn
- Department of Psychology, Chungbuk National University, Cheongju, Korea
| | - Weiwei Zhang
- Department of Psychology, University of California, Riverside, USA
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105
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Möller F, Hoffmann U, Dalecki M, Dräger T, Doppelmayr M, Steinberg F. Physical Exercise Intensity During Submersion Selectively Affects Executive Functions. HUMAN FACTORS 2021; 63:227-239. [PMID: 31596615 DOI: 10.1177/0018720819879313] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE The intact cognitive processing capacity in highly demanding and dynamically changing situations (e.g., in extreme environmental conditions) is of central relevance for personal safety. This study therefore investigated whether underwater physical exercise (PE) affected cognitive performance by comparing these effects during underwater fin-swimming as opposed to inactivity under normal environmental conditions. BACKGROUND Although acute bouts of PE can modulate cognitive performance under highly controlled and standardized laboratory conditions, no previous study has determined whether PE acutely modulates cognitive performance in non-laboratory testing conditions involving extreme environments (e.g., underwater). METHOD A total of 27 healthy volunteers (16 males and 11 females; 28.9 ± 7.4 years of age) participated in two experiments involving either moderate or high PE intensity. A PRE/POST crossover design was employed among participants while performing cognitive tests in a counterbalanced order (i.e., before and after 20 min of PE in submersion [WET] and once before and after inactivity [DRY] while in the laboratory). Cognitive performance was measured as a combination of executive functions through the Eriksen Flanker (inhibition) and Two-Back (working memory) Tasks using an underwater tablet computer. RESULTS ANOVAs revealed enhanced reaction times only in the Flanker test after moderate PE for the WET condition. No other effects were detected. CONCLUSION These findings indicate that cognitive performance is exercise-intensity-dependent with enhanced effects during moderate PE, even in extreme environments (i.e., underwater). APPLICATION These results should be relevant in recreational and occupational contexts involving underwater activity and may also apply to microgravity (e.g., during extra-vehicular activities). DESCRIPTION This study compared the acute effects of physical exercise (PE) on cognitive performance in an underwater environment while participants fin-swam with SCUBA (self-contained underwater breathing apparatus) gear. Findings revealed that 20 min of moderate PE positively affected cognitive performance (i.e., inhibitory control ability). However, no changes were observed after high-intensity exercise.
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106
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The Acute Effects of Different Exercise Intensities on Associative Novel Word Learning in Healthy Older Adults: A Randomized Controlled Trial. J Aging Phys Act 2021; 29:793-806. [PMID: 33581683 DOI: 10.1123/japa.2020-0093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 09/17/2020] [Accepted: 11/13/2020] [Indexed: 11/18/2022]
Abstract
Recent studies show positive effects of acute exercise on language learning in young adults with lower baseline learning abilities; however, this is yet to be investigated in older adults. This study investigated the acute effects of different exercise intensities on new word learning in healthy older adults with lower and higher baseline learning abilities. Sixty older adults (mean age = 66.4 (4.6); 43 females) performed either a single bout of stretching exercise, moderate-intensity continuous exercise, or high-intensity interval exercise followed by a word learning task. In lower baseline learners, between-group differences were observed on immediate new word recall success, with the moderate-intensity continuous exercise group performing better than the stretching group. These findings suggest immediate benefits of moderate-intensity continuous exercise that are limited to word learning performance of older adults with lower baseline learning abilities. Further investigation into underlying mechanisms could lead to a better understanding of individual differences in responding to acute exercise.
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107
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Stojićević J, Jovanović V. The effects of exertional heat stress on some complex cognitive functions. PRAXIS MEDICA 2021. [DOI: 10.5937/pramed2104013s] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Introduction/Aim: Heat stress represents the important problem in military services. This study investigates the effects of exertional heat stress on complex cognitive functions. Methods: 40 male soldiers performed exertional heat stress test, of which 10 performed the test of the same intensity in cool environment. Cognitive functions were mesured by computerized battery CANTAB, before and immediately after exertional heat stress test. Results: Exertional heat stress led to impairment of some cognitive functions in unacclimatized group: decrease of accuracy in MTS test (from 92,6±4,2% towards 84,5±6,9%, p<0,05) and PSRs (from 85,0±8,0% towards 77,0±9,6%, p<0,05), while similar decreases were recorded in MTS test in passively acclimatized group (from 92,2±5,5% towards 87,7±5,6%, p<0,05) i.e. in PSRs test in actively acclimatized group (from 83,3±6,3% towards 69,4±5,1%, p<0,05). The reaction time was not affected in any group whatsoever. Discussion and conclusion: Exertional heat stress leads to mild impairment of complex cognitive functions, particularly in domain of accuracy. Physical strain itself, however, does not affect cognitive functions. Relatively resistance to heat stress in zoung soldiers may be contributed to their high aerobic level.
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108
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Frith E, Miller SE, Loprinzi PD. Effects of Verbal Priming With Acute Exercise on Convergent Creativity. Psychol Rep 2020; 125:375-397. [PMID: 33356896 DOI: 10.1177/0033294120981925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The acute effects of moderate-intensity treadmill exercise during anagram problem solving on subsequent creativity performance has yet to be empirically investigated, which was this study's purpose. A two-visit (counterbalanced order), within-subject experiment was conducted among individuals aged 18-35. For the acute exercise visit, participants engaged in a 15-minute bout of moderate-intensity treadmill exercise while solving anagram problems. For the anagram only visit, participants engaged in 15 minutes of seated rest while solving anagram problems. Average RAT performance was higher for the exercise + anagram problem-solving visit (M = 10.51, SD = 3.25) compared to anagram-solving + seated rest (M = 9.29, SD = 4.12). The difference between conditions was statistically significant, t(44) = 2.385, p = .021, Cohen's d = 0.36. These findings demonstrate that acute exercise coupled with anagram problem-solving, prior to RAT completion, is a potential strategy for enhancing verbal convergent creative thinking.
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Affiliation(s)
- Emily Frith
- Cognitive Neuroscience of Creativity Laboratory, Pennsylvania State University, State College, PA, USA
| | - Stephanie E Miller
- Department of Psychology, The University of Mississippi, University, MS, USA
| | - Paul D Loprinzi
- Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, University, MS, USA
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109
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Swerdlow NS, Wilkins HM. Mitophagy and the Brain. Int J Mol Sci 2020; 21:ijms21249661. [PMID: 33352896 PMCID: PMC7765816 DOI: 10.3390/ijms21249661] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 02/06/2023] Open
Abstract
Stress mechanisms have long been associated with neuronal loss and neurodegenerative diseases. The origin of cell stress and neuronal loss likely stems from multiple pathways. These include (but are not limited to) bioenergetic failure, neuroinflammation, and loss of proteostasis. Cells have adapted compensatory mechanisms to overcome stress and circumvent death. One mechanism is mitophagy. Mitophagy is a form of macroautophagy, were mitochondria and their contents are ubiquitinated, engulfed, and removed through lysosome degradation. Recent studies have implicated mitophagy dysregulation in several neurodegenerative diseases and clinical trials are underway which target mitophagy pathways. Here we review mitophagy pathways, the role of mitophagy in neurodegeneration, potential therapeutics, and the need for further study.
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Affiliation(s)
- Natalie S. Swerdlow
- University of Kansas Alzheimer’s Disease Center, University of Kansas, Kansas City, KS 66160, USA;
| | - Heather M. Wilkins
- University of Kansas Alzheimer’s Disease Center, University of Kansas, Kansas City, KS 66160, USA;
- Department of Neurology, University of Kansas Medical Center, Kansas City, KS 66160, USA
- Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
- Correspondence:
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110
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Kern KL, Storer TW, Schon K. Cardiorespiratory fitness, hippocampal subfield volumes, and mnemonic discrimination task performance in aging. Hum Brain Mapp 2020; 42:871-892. [PMID: 33325614 PMCID: PMC7856657 DOI: 10.1002/hbm.25259] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/03/2020] [Accepted: 10/12/2020] [Indexed: 12/14/2022] Open
Abstract
Aging and exercise have opposing effects on mnemonic discrimination task performance, which putatively taxes pattern separation mechanisms reliant on the dentate gyrus (DG) subfield of the hippocampus. In young adults, increasing cardiorespiratory fitness (CRF) has been shown to improve mnemonic discrimination task performance and increase left anterior DG/CA3 volume. It is unknown how these variables interact in cognitive aging, yet this knowledge is critical, given the established effects of aging on hippocampal plasticity. To investigate these relationships, 65 older adults (aged 55–85 years) completed a submaximal treadmill test to estimate CRF, a mnemonic discrimination task, and a high‐resolution MRI scan to determine hippocampal subfield volumes. Our older adult sample demonstrated the lowest task accuracy in the condition with the greatest stimuli similarity and left DG/CA3 body volume significantly predicted accuracy in this condition. Our results did not provide support for relationships between CRF and task accuracy or CRF and DG/CA3 volume as evidenced in studies of young adults. Instead, CRF predicted bilateral subiculum volume in older adult women, not men. Altogether, these findings provide further support for a role of the DG in behavioral pattern separation in humans and suggest that CRF may have differential effects on hippocampal subfield integrity in older adult men and women. ClinicalTrials.gov identifiers: (a) Neuroimaging Study of Exercise and Memory Function, NCT02057354; (b) The Entorhinal Cortex and Aerobic Exercise in Aging, NCT02775760; (c) Physical Activity and Cognition Study, NCT02773121.
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Affiliation(s)
- Kathryn L Kern
- Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, Massachusetts, USA.,Center for Systems Neuroscience, Boston University, Boston, Massachusetts, USA
| | - Thomas W Storer
- Men's Health, Aging, and Metabolism Unit, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Karin Schon
- Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, Massachusetts, USA.,Center for Systems Neuroscience, Boston University, Boston, Massachusetts, USA.,Department of Psychological and Brain Sciences, Boston University, Boston, Massachusetts, USA.,Center for Memory and Brain, Boston University, Boston, Massachusetts, USA
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111
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Baran TM, Zhang Z, Anderson AJ, McDermott K, Lin F. Brain structural connectomes indicate shared neural circuitry involved in subjective experience of cognitive and physical fatigue in older adults. Brain Imaging Behav 2020; 14:2488-2499. [PMID: 31493140 PMCID: PMC7058488 DOI: 10.1007/s11682-019-00201-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Cumulative evidence suggests the existence of common processes underlying subjective experience of cognitive and physical fatigue. However, mechanistic understanding of the brain structural connections underlying the experience of fatigue in general, without the influence of clinical conditions, is limited. The purpose of the study was to examine the relationship between structural connectivity and perceived state fatigue in older adults. We enrolled cognitively and physically healthy older individuals (n = 52) and categorized them into three groups (low cognitive/low physical fatigue; low cognitive/high physical fatigue; high cognitive/low physical fatigue; no subjects had high cognitive/high physical fatigue) based on perceived fatigue from cognitive and physical fatigue manipulation tasks. Using sophisticated diffusion tensor imaging processing techniques, we extracted connectome matrices for six different characteristics of whole-brain structural connections for each subject. Tensor network principal component analysis was used to examine group differences in these connectome matrices, and extract principal brain networks for each group. Connected surface area of principal brain networks differentiated the two high fatigue groups from the low cognitive/physical fatigue group (high vs. low physical fatigue, p = 0.046; high vs. low cognitive fatigue, p = 0.036). Greater connected surface area within striatal-frontal-parietal networks was correlated with lower cognitive and physical fatigue, and was predictive of perceived physical and cognitive fatigue measures not used for group categorization (Pittsburgh fatigability physical subscale, R2 = 0.70, p < 0.0001; difference in self-report fatigue before and after gambling tasks, R2 = 0.54, p < 0.0001). There are potentially structural connectomes resilient to both cognitive and physical fatigue in older adults.
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Affiliation(s)
- Timothy M Baran
- Department of Imaging Sciences, University of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY, 14642, USA.
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, 14627, USA.
| | - Zhengwu Zhang
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Andrew James Anderson
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, 14627, USA
- Department of Neuroscience, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Kelsey McDermott
- School of Nursing, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Feng Lin
- Department of Neuroscience, University of Rochester Medical Center, Rochester, NY, 14642, USA
- School of Nursing, University of Rochester Medical Center, Rochester, NY, 14642, USA
- Department of Psychiatry, University of Rochester Medical Center, Rochester, NY, 14642, USA
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, 14642, USA
- Department of Brain and Cognitive Sciences, University of Rochester, Rochester, NY, 14627, USA
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112
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Ashworth ET, Cotter JD, Kilding AE. Methods for improving thermal tolerance in military personnel prior to deployment. Mil Med Res 2020; 7:58. [PMID: 33248459 PMCID: PMC7700709 DOI: 10.1186/s40779-020-00287-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 11/10/2020] [Indexed: 12/16/2022] Open
Abstract
Acute exposure to heat, such as that experienced by people arriving into a hotter or more humid environment, can compromise physical and cognitive performance as well as health. In military contexts heat stress is exacerbated by the combination of protective clothing, carried loads, and unique activity profiles, making them susceptible to heat illnesses. As the operational environment is dynamic and unpredictable, strategies to minimize the effects of heat should be planned and conducted prior to deployment. This review explores how heat acclimation (HA) prior to deployment may attenuate the effects of heat by initiating physiological and behavioural adaptations to more efficiently and effectively protect thermal homeostasis, thereby improving performance and reducing heat illness risk. HA usually requires access to heat chamber facilities and takes weeks to conduct, which can often make it impractical and infeasible, especially if there are other training requirements and expectations. Recent research in athletic populations has produced protocols that are more feasible and accessible by reducing the time taken to induce adaptations, as well as exploring new methods such as passive HA. These protocols use shorter HA periods or minimise additional training requirements respectively, while still invoking key physiological adaptations, such as lowered core temperature, reduced heart rate and increased sweat rate at a given intensity. For deployments of special units at short notice (< 1 day) it might be optimal to use heat re-acclimation to maintain an elevated baseline of heat tolerance for long periods in anticipation of such an event. Methods practical for military groups are yet to be fully understood, therefore further investigation into the effectiveness of HA methods is required to establish the most effective and feasible approach to implement them within military groups.
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Affiliation(s)
- Edward Tom Ashworth
- Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, 17 Antares Place, Rosedale, Auckland, 0632 New Zealand
| | - James David Cotter
- School of Physical Education, Sport and Exercise Sciences, University of Otago, Dunedin, Otago 9016 New Zealand
| | - Andrew Edward Kilding
- Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, 17 Antares Place, Rosedale, Auckland, 0632 New Zealand
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113
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Mücke M, Ludyga S, Colledge F, Pühse U, Gerber M. The Influence of an Acute Exercise Bout on Adolescents' Stress Reactivity, Interference Control, and Brain Oxygenation Under Stress. Front Psychol 2020; 11:581965. [PMID: 33244305 PMCID: PMC7683805 DOI: 10.3389/fpsyg.2020.581965] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 10/19/2020] [Indexed: 12/03/2022] Open
Abstract
Background High psychosocial stress can impair executive function in adolescents, whereas acute exercise has been reported to benefit this cognitive domain. The aim of this study was to investigate whether an acute bout of aerobic exercise improves the inhibitory aspect of executive function and the associated dorsolateral prefrontal cortex (DLPFC) oxygenation when under stress. Methods Sixty male high school students aged 16–20 years performed a Stroop task (baseline condition) and were randomly assigned to an exercise group (30 min on ergometer at 70% of maximum heart rate) and a control group (30 min of reading). Subsequently, all participants underwent a modified Trier Social Stress Test, which included a Stroop task under enhanced stress. The Stroop tasks in both conditions were combined with functional near-infrared spectroscopy to record changes in DLPFC oxygenation in response to the tasks. Stress reactivity was measured with saliva samples (cortisol, alpha-amylase), heart rate monitoring, and anxiety scores. Results All stress parameters indicated increases in response to the stressor (p < 0.001), with higher alpha-amylase [t(58) = −3.45, p = 0.001, d = 1.93] and anxiety [t(58) = −2.04, p = 0.046, d = 0.53] reactions in the control compared to the exercise group. Controlling for these two parameters, repeated measures analyses of covariance targeting changes in Stroop interference scores showed no main effect of stress [F(1,58) = 3.80, p = 0.056, ηp2 = 0.063] and no stress × group interaction [F(1,58) = 0.43, p = 0.517, ηp2 = 0.008]. Similarly, there was no main effect of stress [F(1,58) = 2.38, p = 0.128, ηp2 = 0.040] and no stress × group interaction [F(1,58) = 2.80, p = 0.100, ηp2 = 0.047] for DLPFC oxygenation. Conclusion Our study confirms potentially health-enhancing effects of acute exercise on some of the physiological and psychological stress reactivity indicators. However, our data do not support the notion of an effect on interference control and DLPFC activation under stress.
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Affiliation(s)
- Manuel Mücke
- Department of Sport, Exercise and Health, Sport Science Section, University of Basel, Basel, Switzerland
| | - Sebastian Ludyga
- Department of Sport, Exercise and Health, Sport Science Section, University of Basel, Basel, Switzerland
| | - Flora Colledge
- Department of Sport, Exercise and Health, Sport Science Section, University of Basel, Basel, Switzerland
| | - Uwe Pühse
- Department of Sport, Exercise and Health, Sport Science Section, University of Basel, Basel, Switzerland
| | - Markus Gerber
- Department of Sport, Exercise and Health, Sport Science Section, University of Basel, Basel, Switzerland
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114
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Kim HJ, Bae S, Huh JH, Lee JW, Han DH. Hemodynamic Changes in Response to Aerobic Exercise: Near-infrared Spectroscopy Study. Int J Sports Med 2020; 42:377-385. [PMID: 33075828 DOI: 10.1055/a-1198-8465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
This study aimed to determine the neurophysiological mechanisms underlying the effects of aerobic exercise, which influence brain O2 consumption, on cognitive enhancement. Sixteen healthy men were asked to complete a 2-back test at rest and after moderate and high-intensity aerobic exercise. During the 2-back test, hemodynamic changes within the prefrontal cortex were assessed using high-density functional near-infrared spectroscopy. Scores of the 2-back test, regardless of the exercise intensity, were positively correlated with the hemodynamic changes within the right and left dorsolateral prefrontal cortex (DLPFC). During an 2-back test, there were differences in the hemodynamic changes within the DLPFC with moderate and high-intensity exercise conditions. In the 2-back condition, the accumulated oxyhemoglobin within the right DLPFC after moderate intensity exercise was 7.9% lower than that at baseline, while the accumulated oxyhemoglobin within the left DLPFC was 14.6% higher than that at baseline after high-intensity exercise. In response to the 2-back test, the accumulated oxygenated hemoglobin within the left DLPFC after high-intensity exercise increased more significantly than that observed after moderate intensity exercise. These results show that the right DLPFC consumes O2 more efficiently in response to moderate intensity aerobic exercise than in response to high-intensity aerobic exercise.
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Affiliation(s)
- Hee Jin Kim
- Department of Psychiatry, College of Medicine, Chung-Ang University, Seoul, Korea (the Republic of)
| | - Sujin Bae
- Department of Psychiatry, College of Medicine, Chung-Ang University, Seoul, Korea (the Republic of)
| | - Jung Hun Huh
- Department of Human Motor Behavior, Chung-Ang University, An-seong, Korea (the Republic of)
| | - Jea Woog Lee
- Department of Information & Technology in Sport, Chung-Ang University, An-seong, Korea (the Republic of)
| | - Doug Hyun Han
- Department of Psychiatry, College of Medicine, Chung-Ang University, Seoul, Korea (the Republic of)
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Gao L, Zhu L, Hu L, Hu H, Wang S, Bezerianos A, Li Y, Li C, Sun Y. Mid-Task Physical Exercise Keeps Your Mind Vigilant: Evidences From Behavioral Performance and EEG Functional Connectivity. IEEE Trans Neural Syst Rehabil Eng 2020; 29:31-40. [PMID: 33052846 DOI: 10.1109/tnsre.2020.3030106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Accumulating efforts have been made to discover effective solutions for fatigue recovery with the ultimate aim of reducing adverse consequences of mental fatigue in real life. The previously-reported behavioral benefits of physical exercise on mental fatigue recovery prompted us to investigate the restorative effect and reveal the underlying neural mechanisms. Specifically, we introduced an empirical method to investigate the beneficial effect of physical exercise on the reorganization of EEG functional connectivity (FC) in a two-session experiment where one session including a successive 30-min psychomotor vigilance task (PVT) (No-intervention session) compared to an insertion of a mid-task 15-min cycling exercise (Intervention session). EEG FC was obtained from 21 participants and quantitatively assessed via graph theoretical analysis and a classification framework. The findings demonstrated the effectiveness of exercise intervention on behavioral performance as shown in improved reaction time and response accuracy. Although we found significantly altered network alterations towards the end of experiment in both sessions, no significant differences between the two sessions and no interaction between session and time were found in EEG network topology. Further interrogation of functional connectivity through classification analysis showed decreased FC in distributed brain areas, which may lead to the significant reduction of network efficiency in both sessions. Moreover, we showed distinct patterns of FC alterations between the two sessions, indicating different information processing strategies adopted in the intervention session. In sum, these results provide some of the first quantitative insights into the complex neural mechanism of exercise intervention for fatigue recovery and lead a new direction for further application research in real-world situations.
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116
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Ahmed HS, Marcora SM, Dixon D, Davison G. The Effect of a Competitive Futsal Match on Psychomotor Vigilance in Referees. Int J Sports Physiol Perform 2020; 15:1297-1302. [PMID: 32335534 DOI: 10.1123/ijspp.2019-0268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 11/17/2019] [Accepted: 01/02/2020] [Indexed: 11/18/2022]
Abstract
CONTEXT Referees' physical and cognitive performance are important for successful officiating in team sports. There is a lack of research on cognitive performance of referees in general, and none in futsal. PURPOSE To assess referees' performance on the psychomotor vigilance task (PVT) before and after competitive futsal matches during the Football Association (FA) National Futsal League 2015/16. METHODS Fourteen futsal referees (mean [SD] age 34.3 [10.0] y) from the FA National Futsal group were included. The referees were required to undertake a 10-min PVT 60 min before the match kickoff time (pretest) and immediately after matches (posttest). They also completed the Brunel Mood Scale (BRUMS) questionnaire before the prematch PVT and after the postmatch PVT. RESULT Data were analyzed by paired t tests comparing prematch and postmatch results. There was a significant difference in BRUMS parameters vigor (9.5 [2.5] prematch vs 6.3 [2.4] postmatch, P = .001) and fatigue (1.4 [1.3] prematch vs 5.6 [3.1] postmatch, P < .001). However, PVT performance was significantly improved (mean reaction time 248.3 [26.2] ms prematch vs 239.7 [22.4] ms postmatch, P = .023). CONCLUSIONS The present results show, contrary to the authors' initial hypothesis, that psychomotor performance is improved as opposed to decreased after a single match. The postmatch improvement suggests that exercise can acutely enhance cognitive performance, which could be used to inform warm-up practices (eg, optimal duration and intensity) geared toward optimizing referees' cognitive performance during matches.
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117
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Kendall BJ, Siekirk NJ, Lai Q. Acute high-intensity interval training improves motor skill acquisition. J Sports Med Phys Fitness 2020; 60:1065-1071. [PMID: 32955832 DOI: 10.23736/s0022-4707.20.10580-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND It is well established that acute exercise improves cognitive function. However, less is known about the effects of exercise on motor skill acquisition. Therefore, this study investigated the effects of acute high-intensity interval training (HIIT) on motor skill acquisition. METHODS Sixty individuals (27 males, 33 females) between 18 and 40 years of age participated in two testing sessions separated by one week. During visit 1, participants performed one block of a continuous tracking, force control task to establish baseline ability. Participants were then randomized to either an aerobic-only HIIT group (HIIT-A), an aerobic/resistance HIIT group (HIIT-AR), or a resting control group. Both exercise groups performed a 20-minute, digital versatile disc (DVD)-delivered HIIT exercise protocol during visit 2. Following exercise or rest, all participants performed five blocks of the same force control task to assess skill acquisition. RESULTS On visit 2, the HIIT-A group had a significantly lower total performance error (E) compared to the control group (P<0.05). Both exercise groups (HIIT-A and HIIT-AR) had a significantly lower peak amplitude error (PE) following exercise compared to the control group (P<0.05). No significant group differences were observed for temporal error (TE). Additionally, no significant differences were observed between the exercise groups (P>0.05). CONCLUSIONS These findings suggest that acute HIIT-A improves motor skill acquisition compared to rest. Furthermore, improvements in acquisition appeared to be a result of improved spatial accuracy. Therefore, performing HIIT-A prior to practicing a motor task may help reduce total error during the motor skill acquisition phase.
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Affiliation(s)
- Bradley J Kendall
- Department of Kinesiology, Taylor University, Upland, CA, USA - .,Division of Kinesiology, Health and Sport Studies, Wayne State University, Detroit, MI, USA -
| | - Nicholas J Siekirk
- Division of Kinesiology, Health and Sport Studies, Wayne State University, Detroit, MI, USA.,Department of Health Sciences and Kinesiology, Georgia Southern University, Statesboro, GA, USA
| | - Qin Lai
- Division of Kinesiology, Health and Sport Studies, Wayne State University, Detroit, MI, USA
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118
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Lhuillier S, Gyselinck V, Piolino P, Nicolas S. "Walk this way": specific contributions of active walking to the encoding of metric properties during spatial learning. PSYCHOLOGICAL RESEARCH 2020; 85:2502-2517. [PMID: 32918143 DOI: 10.1007/s00426-020-01415-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 09/01/2020] [Indexed: 11/25/2022]
Abstract
The effect of body-based information on spatial memory has been traditionally described as a facilitating factor for large-scale spatial learning in the field of active learning research (Chrastil & Warren, Psychonomic Bulletin and Review, 19(1):1-23; 2012). The specific contribution of body-based information to spatial representation properties is however not yet well defined and the mechanisms through which body-based information contributes to spatial learning are not clear enough. To disambiguate the effect of active spatial learning on the quality of spatial representations from the beneficial effect of physiological arousal, we compared four experimental conditions (walking on a unidirectional treadmill during learning, retrieval, both phases or no walking). Results showed no effect of the walking condition for a route perspective task, but a significant effect on a survey perspective task (landmark positioning on a map): participants who walked during encoding (encoding group and encoding + retrieval group) obtained better results than those who did not walk or walked only during retrieval. Geometrical analysis of spatial positions on maps revealed that the activity of walking during encoding improves the correlation between participants' coordinates and actual coordinates through better distance estimations and angular accuracy, even though the optic flow was not matched with individual walking speed. Control group variance in all measures was higher than that of the walking groups (regardless of the moment of walking). Taken together, these results provide arguments for the multimodal nature of spatial representations, where body-related information derived from walking is involved in metric properties accuracy and perspective switching.
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Affiliation(s)
- Simon Lhuillier
- LAPEA, Université Gustave Eiffel, IFSTTAR, 78000, Versailles, France.
- LAPEA, Université de Paris, 92000, Boulogne-Billancourt, France.
- MC2, Université de Paris, 92000, Boulogne-Billancourt, France.
| | - Valérie Gyselinck
- LAPEA, Université Gustave Eiffel, IFSTTAR, 78000, Versailles, France
- LAPEA, Université de Paris, 92000, Boulogne-Billancourt, France
| | - Pascale Piolino
- MC2, Université de Paris, 92000, Boulogne-Billancourt, France
| | - Serge Nicolas
- MC2, Université de Paris, 92000, Boulogne-Billancourt, France
- Institut Universitaire de France (IUF), Paris, France
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119
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Blomstrand P, Engvall J. Effects of a single exercise workout on memory and learning functions in young adults—A systematic review. TRANSLATIONAL SPORTS MEDICINE 2020. [DOI: 10.1002/tsm2.190] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Peter Blomstrand
- Department of Clinical Physiology County Hospital Ryhov Jönköping Sweden
- Department of Natural Science and Biomedicine School of Health and Welfare Jönköping University Jönköping Sweden
| | - Jan Engvall
- Department of Clinical Physiology and Department of Health, Medicine and Caring Sciences Linköping University Linköping Sweden
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120
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Dawson D, Ferguson SA, Vincent GE. Safety implications of fatigue and sleep inertia for emergency services personnel. Sleep Med Rev 2020; 55:101386. [PMID: 33027747 DOI: 10.1016/j.smrv.2020.101386] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 12/31/2022]
Abstract
Emergency services present a unique operational environment for the management of fatigue and sleep inertia. Communities request and often expect the provision of emergency services on a 24/7/365 basis. This can result in highly variable workloads and/or significant need for on-demand or on-call working time arrangements. In turn, the management of fatigue-related risk requires a different approach than in other more predictable shift working sectors (e.g., mining and manufacturing). The aim of this review is to provide a comprehensive overview of fatigue risk management that is accessible to regulators, policy makers and organisations in the emergency services sector. The review outlines the unique fatigue challenges in the emergency services sector, examines the current scientific and policy consensus around managing fatigue and sleep inertia, and finally discusses strategies that emergency services organisations can use to minimise the risks associated with fatigue and sleep inertia.
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Affiliation(s)
- Drew Dawson
- Central Queensland University, Appleton Institute, Adelaide, South Australia, Australia.
| | - Sally A Ferguson
- Central Queensland University, Appleton Institute, Adelaide, South Australia, Australia
| | - Grace E Vincent
- Central Queensland University, Appleton Institute, Adelaide, South Australia, Australia
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121
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Bollimbala A, James P, Ganguli S. The effect of Hatha yoga intervention on students' creative ability. Acta Psychol (Amst) 2020; 209:103121. [PMID: 32731011 DOI: 10.1016/j.actpsy.2020.103121] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 06/14/2020] [Accepted: 06/17/2020] [Indexed: 11/26/2022] Open
Abstract
There is increasing demand for individual creativity as organizations seek innovative ways to remain relevant. Higher education institutions, particularly business schools, are sensitive to this demand and are constantly in search for innovative ways to enhance the creative ability of their students. Prior studies have shown encouraging results for physical activity-oriented interventions. Building on this research, this study uses Randomized Controlled Trial (RCT) to understand if an acute combinatory intervention, involving both physical and mental exercises embodied in Hatha yoga can improve individual creativity. This study uses 92 MBA student participants to investigate the impact of a 20-minute Hatha yoga session intervention against a short 20-minute case study session for the control group. Creative ability of the participants is operationalized through divergent and convergent thinking, which are then assessed through counter-balanced forms of Guilford Alternate Uses tasks and Remote Associate Test, respectively. The results show that while Hatha yoga significantly improves divergent thinking, the control group shows deterioration in divergent thinking. There is no effect on convergent thinking. These findings lend some support to the executive function hypothesis. The study also finds that prodding a person to be more creative on a routine academic task may not enhance their creative ability.
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122
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Sá Filho AS, Cheniaux E, de Paula CC, Murillo-Rodriguez E, Teixeira D, Monteiro D, Cid L, Yamamoto T, Telles-Correia D, Imperatori C, Budde H, Machado S. Exercise is medicine: a new perspective for health promotion in bipolar disorder. Expert Rev Neurother 2020; 20:1099-1107. [PMID: 32762382 DOI: 10.1080/14737175.2020.1807329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Similar effects in reducing the symptoms of the mood disorder are reported in the literature compared the action of drugs and aerobic exercise sessions, demonstrating the potential of exercise in the control and mood stabilization. Therefore, there are many reasons to believe that the increased cardiorespiratory fitness (VO2max) can be an important means of protection and a reducing potential of physical and mental damage in bipolar disorders (BD). This review will highlight the current pattern of response of exercise on the pathophysiology of BD, relating the possible mechanisms, and hypotheses based on exercises. AREAS COVERED The mechanism of monoaminergic action and its relationship with exercise, role of physical conditioning and increased VO2Max on neurotrophin release, and new perspectives on long-term exercise will be reviewed. EXPERT OPINION The adaptations to training, although little explored in the context of BD, can induce the expression of substances that co-regulate several processes related to the pathophysiology of BD. Furthermore, high intensity interval training (HIIT) can also be adjusted to improve the physical fitness and health in patients with BD. Future research is needed to adopt a training strategy that is both time efficient and adequate for the population in question.
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Affiliation(s)
- Alberto Souza Sá Filho
- Department of Physical Education, Paulista University (UNIP) , São Paulo, Brazil.,Department of Physical Education, University Center of Anápolis (Unievangélica) , Anápolis, Brazil
| | - Elie Cheniaux
- School of Medical Sciences, State University of Rio De Janeiro (UERJ) , Rio De Janeiro, Brazil.,Institute of Psychiatry, Federal University of Rio De Janeiro , Rio De Janeiro, Brazil
| | - Carolina Cavalcante de Paula
- Department of Cellular, Tissue and Developmental Biology, The Institute of Biomedical Science, The University of São Paulo (ICB/USP) , São Paulo, Brazil
| | - Eric Murillo-Rodriguez
- International Neuroscience Research Group , Yucatan, México.,Laboratorio De Neurociencias Moleculares E Integrativas, Escuela De Medicina, División Ciencias De La Salud, Universidad Anáhuac Mayab , Mérida, Mexico
| | - Diogo Teixeira
- International Neuroscience Research Group , Yucatan, México.,Faculty of Physical Education and Sport, ULHT , Lisbon, Portugal
| | - Diogo Monteiro
- International Neuroscience Research Group , Yucatan, México.,Research Centre in Sports, Health and Human Development, CIDESD , Rio Maior, Portugal.,Sport Science School of Rio Maior, Polytechnique Institute of Santarém , Rio Maior, Portugal
| | - Luis Cid
- International Neuroscience Research Group , Yucatan, México.,Research Centre in Sports, Health and Human Development, CIDESD , Rio Maior, Portugal.,Sport Science School of Rio Maior, Polytechnique Institute of Santarém , Rio Maior, Portugal
| | - Tetsuya Yamamoto
- International Neuroscience Research Group , Yucatan, México.,Graduate School of Technology, Industrial and Social Sciences, Tokushima University , Tokushima, Japan
| | - Diogo Telles-Correia
- International Neuroscience Research Group , Yucatan, México.,Clínica Universitária De Psicologia E Psiquiatria, Faculdade De Medicina, Universidade De Lisboa , Lisbon, Portugal.,Departamento De Psiquiatria, Faculdade De Medicina, Universidade De Lisboa , Lisbon, Portugal
| | - Claudio Imperatori
- International Neuroscience Research Group , Yucatan, México.,Department of Human Sciences, European University of Rome, Via degli Aldobrandeschi 190 , Rome, Italy
| | - Henning Budde
- International Neuroscience Research Group , Yucatan, México.,Faculty of Human Sciences, Medical School Hamburg, University of Applied Science and Medical University , Hamburg, Germany
| | - Sergio Machado
- Institute of Psychiatry, Federal University of Rio De Janeiro , Rio De Janeiro, Brazil.,International Neuroscience Research Group , Yucatan, México.,Laboratory of Physical Activity Neuroscience, Physical Activity Sciences Postgraduate Program, Salgado De Oliveira University (UNIVERSO) , Niterói, Brazil.,Laboratory of Physical Activity Neuroscience, Neurodiversity Institute, Queimados , RJ, Brazil
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123
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McCartney D, Desbrow B, Irwin C. Cognitive effects of acute aerobic exercise: Exploring the influence of exercise duration, exhaustion, task complexity and expectancies in endurance-trained individuals. J Sports Sci 2020; 39:183-191. [PMID: 32822260 DOI: 10.1080/02640414.2020.1809976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The cognitive effects of acute aerobic exercise were investigated in endurance-trained individuals. On two occasions, 21 cyclists; 11 male (VO2max: 57 ± 9 mL·kg-1·min-1) and 10 female (VO2max: 51 ± 9 mL·kg-1·min-1), completed 45 min of fixed, moderate-intensity (discontinuous) cycling followed by an incremental ride to exhaustion. Cognitive function was assessed at Baseline, after 15 and 45 min of exercise (15EX and 45EX) and at Exhaustion using a 4-Choice Reaction Time (CRT) test and the Stroop test (Incongruent and Congruent Reaction Time [RT]). A sham capsule was administered on one occasion to determine whether the cognitive response to exercise was robust to the influence of a placebo. CRT, Congruent RT and Incongruent RT decreased (improved) at 15EX, 45EX and Exhaustion compared to Baseline (p's<0.005). While CRT and Congruent RT were faster at 45EX than 15EX (p's<0.020), Incongruent RT was not (p= 1.000). The sham treatment did not affect cognition. When performed at a moderate-intensity, longer duration exercise (up to 45 min) may improve cognition to a greater extent than shorter duration exercise; however, the magnitude of improvement appears to decrease with increasing task complexity. HI/EE performed following a sustained bout of dehydrating activity may not impair cognition.
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Affiliation(s)
- Danielle McCartney
- Faculty of Science, School of Psychology, University of Sydney , Sydney, Australia
| | - Ben Desbrow
- School of Allied Health Sciences, Griffith University , Gold Coast, Australia
| | - Christopher Irwin
- School of Allied Health Sciences, Griffith University , Gold Coast, Australia.,Menzies Health Institute Queensland , Gold Coast, Australia
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124
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Haverkamp BF, Wiersma R, Vertessen K, van Ewijk H, Oosterlaan J, Hartman E. Effects of physical activity interventions on cognitive outcomes and academic performance in adolescents and young adults: A meta-analysis. J Sports Sci 2020; 38:2637-2660. [PMID: 32783695 DOI: 10.1080/02640414.2020.1794763] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The aim was to provide a meta-analysis of studies investigating the effects of physical activity interventions on cognitive outcomes and academic performance in adolescents or young adults. A systematic review with meta-analysis was performed using the following databases: Embase, ERIC, MEDLINE, PsycINFO and Web of Science. Studies had to meet the following criteria: controlled study design, investigating the effects of physical activity interventions on cognitive outcomes and academic performance in healthy adolescents or young adults (12-30 years). Results showed that acute interventions (n=44) significantly improved processing speed (ES=0.39), attention (ES=0.34) and, inhibition (ES=0.32). In a subsequent meta-regression, shorter duration of intervention was significantly associated with greater improvements in attention (β=-0.02) and cognitive flexibility (β=-0.04), whereas age, percentage of boys, intensity and dose were not. Chronic interventions (n=27) significantly improved processing speed (ES=0.30), attention (ES=0.50), cognitive flexibility (ES=0.19), working memory (ES=0.59) and language skills (ES=0.31). In the meta-regression, higher percentage of boys was significantly associated with greater improvements in attention (β=0.02) and working memory (β=0.01) whereas age, duration, frequency, dose and load were not. In conclusion, acute and chronic physical activity interventions might be a promising way to improve several cognitive outcomes and language skills in adolescents and young adults.
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Affiliation(s)
- Barbara Franca Haverkamp
- University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences, Groningen, The Netherlands and Vrije Universiteit Amsterdam, Faculty of Behavioural an Movement Sciences, Clinical Neuropsychology Section , Amsterdam, The Netherlands
| | - Rikstje Wiersma
- Department of Epidemiology, University of Groningen, University Medical Center Groningen , Groningen, The Netherlands
| | - Karen Vertessen
- Faculty of Behavioural and Movement Sciences, Clinical Neuropsychology Section, Vrije Universiteit Amsterdam , Amsterdam, The Netherlands
| | - Hanneke van Ewijk
- Curium-LUMC, Department of Child and Adolescent Psychiatry, Leiden University Medical Center , Oegstgeest, The Netherlands
| | - Jaap Oosterlaan
- Vrije Universiteit Amsterdam, Faculty of Behavioural and Movement Sciences, Clinical Neuropsychology Section, Amsterdam, the Netherlands and Emma Children's Hospital, Amsterdam UMC, University of Amsterdam and Vrije Universiteit Amsterdam, Emma Neuroscience Group, Department of Pediatrics, Amsterdam Reproduction & Development , Amsterdam, the Netherlands
| | - Esther Hartman
- University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences , Groningen, The Netherlands
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125
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Does type of active workstation matter? A randomized comparison of cognitive and typing performance between rest, cycling, and treadmill active workstations. PLoS One 2020; 15:e0237348. [PMID: 32764818 PMCID: PMC7413476 DOI: 10.1371/journal.pone.0237348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/23/2020] [Indexed: 11/19/2022] Open
Abstract
Active workstations are associated with improved health outcomes, but differences in cognitive and typing outcomes between the types of active workstations are unclear. We addressed two main questions: (1) Are there differences in cognitive and typing performance between seated and active workstations? (2) Are there differences in cognitive and typing performance between cycling and treadmill workstations, specifically? Participants included 137 healthy young adults (74 female, mean age = 20.8 years) who completed two sessions. At session one (baseline), all participants completed cognitive and typing tests including the Rey-Auditory Verbal Learning Test, Paced Auditory Serial Addition Test, a typing test, and a flanker task while sitting at rest. At session two, participants were randomized to an active workstation group (treadmill or cycling desk) during which they performed the tests listed above in a randomized fashion, using alternate versions when available. Participants showed significantly better attention and cognitive control scores during the active session as compared to the seated session, but worse verbal memory scores during the active session. Participants were faster and more accurate at typing during the active session relative to the seated session. There were no significant differences between cycling or treadmill workstations on any cognitive or typing outcomes. Improvements during active sessions may be influenced by practice effects, although alternate forms were used when possible. We conclude that active workstations do not seem to largely impact cognitive abilities, with the exception of a slight decrease in verbal memory performance. Findings suggest active workstations, whether walking or cycling, are useful to improve physical activity, particularly when completing tasks that do not require verbal memory recall.
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126
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Weisman JS, Rodebaugh TL. Testing the efficacy of a brief exercise intervention for enhancing exposure therapy outcomes. J Anxiety Disord 2020; 74:102266. [PMID: 32603996 DOI: 10.1016/j.janxdis.2020.102266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 05/17/2020] [Accepted: 06/16/2020] [Indexed: 10/24/2022]
Abstract
Recently, it has been hypothesized that a brief bout of exercise could cognitively enhance extinction learning processes theorized to underlie exposure therapy for pathological anxiety. The present study tested the exercise enhancement hypothesis in a sample of speech-anxious undergraduates (n = 84). During the first laboratory session, participants engaged in either 30 min of moderate-intensity exercise on a cycling ergometer (n = 37) or seated rest (n = 47) immediately following a brief speech exposure trial. They returned approximately one week later to give a follow-up speech. Contrary to expectation, there were no significant between-group differences in memory of a brief word list across four recall trials, which served as a manipulation check. Further, all main effects and interactions involving condition were nonsignificant. Post hoc tests revealed that participants who reported higher average perceived exertion during exercise demonstrated increases in an average anxiety composite across speeches relative to those who reported lower average perceived exertion, indicating that trying hard during the intervention predicted worse exposure trial outcomes. The implications of these findings, as well as future directions for this line of research, are explored.
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Affiliation(s)
- Jaclyn S Weisman
- Department of Psychology, Washington University in St. Louis, St. Louis, MO, USA.
| | - Thomas L Rodebaugh
- Department of Psychology, Washington University in St. Louis, St. Louis, MO, USA
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127
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Formenti D, Cavaggioni L, Duca M, Trecroci A, Rapelli M, Alberti G, Komar J, Iodice P. Acute Effect of Exercise on Cognitive Performance in Middle-Aged Adults: Aerobic Versus Balance. J Phys Act Health 2020; 17:773-780. [PMID: 32702659 DOI: 10.1123/jpah.2020-0005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 04/20/2020] [Accepted: 05/06/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND Recent evidence has suggested that chronic physical activities including balance exercises have positive effects on cognition, but their acute effects are still unknown. In the present study, the authors tested the hypothesis that an acute bout of balance exercise would enhance cognitive performance compared with aerobic activity. METHODS A total of 20 healthy middle-aged adults completed 2 acute 30-minute balance and moderate-intensity aerobic exercise sessions on 2 counterbalanced separate occasions. To assess cognitive functions, performance tasks in executive control, perceptual speed, and simple reaction time were tested before and immediately after each exercise session. RESULTS Although there were no significant interactions (time × exercise condition, P > .05), the main effects of time were significant in executive control (P < .05), perceptual speed (P < .05), and simple reaction time (P < .001), showing improvements after both exercises. CONCLUSIONS These findings highlight that both types of exercise (aerobic, more metabolic and less cognitively demanding; balance, more cognitively and less metabolically demanding) were able to positively affect simple reaction time performance, perceptual speed, and executive control independently of physiological adjustments occurring during aerobic or balance exercise.
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128
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Sánchez-Molina J, Tronero-Aguilera JF, Clemente-Suárez VJ. Psychophysiological respond in a swimming ultra-endurance event. J Sports Med Phys Fitness 2020; 61:140-145. [PMID: 32693561 DOI: 10.23736/s0022-4707.20.11201-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Ultra-endurance events under critical environmental conditions represent unique stress, resulting in acute marked adaptations to the cardiovascular, respiratory, metabolic and neuromuscular systems of the organism. In line with this, no studies in swimming events were found thus far. METHODS This research aimed to analyze the psychophysiological response of swimmers in an ultra-endurance swimming event. Changes in the rate of perceived exertion, blood lactate concentration, 1000m swimming time and cortical arousal were measured in 19 male volunteer swimmers (28.0±5.6 years; 175.0±7.9 cm; 70.1±7.8 kg) in 3 moments during a 24h swimming event. RESULTS We found a significant increase in lactate concentration after series 1, decreasing the values in series 2 and series 3. Cortical arousal decreased significantly in series 3 respect the basal sample. Rate of perceived exertion significantly increased in the swimming ultra-endurance event and 1000m swimming time was maintained during the series analyzed. CONCLUSIONS An ultra-endurance swimming event produced an increase in blood lactate concentration and rated of perceived exertion and a decrease in cortical arousal, not affecting average swimming velocity along the event.
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Affiliation(s)
| | - José F Tronero-Aguilera
- Faculty of Sports Sciences, European University of Madrid, Madrid, Spain.,Research Center in Applied Combat (CESCA), Toledo, Spain
| | - Vicente J Clemente-Suárez
- Faculty of Sports Sciences, European University of Madrid, Madrid, Spain - .,Research Center in Applied Combat (CESCA), Toledo, Spain.,Grupo de Investigación en Cultura, Educación y Sociedad (CULTEDUSOC), Coast University, Barranquilla, Colombia
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129
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Salerno EA, Rowland K, Hillman CH, Trinh L, Kramer AF, McAuley E. Dose-Response Effects of Acute Aerobic Exercise Duration on Cognitive Function in Patients With Breast Cancer: A Randomized Crossover Trial. Front Psychol 2020; 11:1500. [PMID: 32760319 PMCID: PMC7371984 DOI: 10.3389/fpsyg.2020.01500] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE To examine the differential effects of acute exercise duration on domains of executive function and processing speed in patients with breast cancer. METHODS Participants (N = 48, M age = 56.02 ± 10.99) completed two sessions in counterbalanced order: moderate-intensity treadmill walking and sitting. Participants were also randomized to one of three duration conditions: 10 (n = 15), 20 (n = 16), or 30 (n = 17) min, reflecting the length of time spent walking and sitting. Immediately before and after each session, women completed a battery of cognitive tasks (e.g., inhibition, cognitive flexibility, spatial working memory, and processing speed). RESULTS Within- and between-subjects repeated-measures analyses of variance revealed time by condition interactions on both processing speed (p = 0.02) and spatial working memory (ps < 0.07), such that women demonstrated improved cognitive functioning regardless of the time spent walking. There were also several moderately sized three-way (e.g., time by condition by duration) interactions driven by declines in cognitive functioning after sitting on cognitive flexibility in the 10 (d = -0.96) and 30-min (d = -0.52) groups and inhibition in the 20-min group (d = 0.75). On the processing speed task, women performed significantly faster after walking compared with after sitting in the 20-min group (d = -0.24). CONCLUSIONS For select cognitive domains, walking anywhere from 10 to 30 min is associated with significant benefits. Our findings suggest the need for further research into the mechanisms and dose-response relationships between acute exercise and cognition as well as how such acute bouts may be accumulated for larger, lasting cognitive benefits after breast cancer. CLINICAL TRIAL REGISTRATION www.ClinicalTrials.gov, identifier NCT04255225.
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Affiliation(s)
- Elizabeth A. Salerno
- Cancer Prevention Fellowship Program, Division of Cancer Epidemiology & Genetics, Metabolic Epidemiology Branch, National Cancer Institute, Bethesda, MD, United States
- Department of Kinesiology & Community Health, University of Illinois at Urbana-Champaign, Champaign, IL, United States
| | | | | | - Linda Trinh
- Department of Kinesiology & Physical Education, University of Toronto, Toronto, ON, Canada
| | - Arthur F. Kramer
- College of Science, Northeastern University, Boston, MA, United States
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Champaign, IL, United States
| | - Edward McAuley
- Department of Kinesiology & Community Health, University of Illinois at Urbana-Champaign, Champaign, IL, United States
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Champaign, IL, United States
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130
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Giles GE, Hasselquist L, Caruso CM, Eddy MD. Load Carriage and Physical Exertion Influence Cognitive Control in Military Scenarios. Med Sci Sports Exerc 2020; 51:2540-2546. [PMID: 31274685 DOI: 10.1249/mss.0000000000002085] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Physical exertion has both beneficial and detrimental effects on cognitive performance, particularly cognitive control. Research into physical exertion under conditions of load carriage is particularly important given that military personnel and first responders must perform optimally under such combinatorial physical stressors. The present work sought to characterize cognitive control as a function of physical exertion and load carriage in a military operational scenario. METHODS Thirty-one active-duty soldiers underwent a 4-h operationally relevant and fatiguing scenario that included two 1-h foot marches under load carriage conditions of 8.8, 47.2, 50.7 kg on each of three separate days. During each foot march, they completed five 5-min blocks of an auditory go/no-go task of response inhibition. RESULTS Results showed that response inhibition declined with increasing load carriage and physical exertion, as evidenced by lower proportion of correct responses, higher proportion of false alarms, and lower response sensitivity between all three load conditions, particularly upon successive foot marches and time blocks within each foot march. CONCLUSIONS The results support previous laboratory-based work on load carriage and physical exertion and suggest that deteriorations in cognitive control witnessed in laboratory settings are more pronounced within realistic operational scenarios akin to those encountered by military personnel and first responders.
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Affiliation(s)
- Grace E Giles
- US Army Combat Capabilities Development Command Soldier Center (CCDC Soldier Center), Natick, MA
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131
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Jain S, Shimpi A, Shyam A, Sancheti P. Not just studies, but fitness can also get you the intelligence and the grades!! Int J Adolesc Med Health 2020; 33:479-486. [PMID: 32549186 DOI: 10.1515/ijamh-2019-0223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/30/2020] [Indexed: 11/15/2022]
Abstract
Objectives Physical fitness in children and adolescents determines their health status and predicts if they are prone to co-morbidities that may extend in adulthood. The initial literature on the benefits of being physically fit was limited to the musculoskeletal and cardio-respiratory systems. The recent trends have shown that physical fitness has an effect on the neurological system as well. Considering physical inactivity to be a problem in today's world and the growing evidences on physical fitness being related to cognition and academic performance, there is a need to explore more on these relationships. Thus, this study aims to find the correlation between physical fitness with academic performance and cognitive functions in adolescent urban school children. Hypothesis There is an association between physical fitness with academic performance and cognitive function. Methodology Three hundred and ninteen children were approached out of which 107 children consented for assessment. Their physical fitness was measured using the Progressive Aerobic Cardiovascular Endurance Run (PACER) test, the cognitive function was assessed using the Stroop test and the academic performance were taken from their final exam grades of 2019. Results A moderate positive correlation was found between physical fitness with cognitive function (r=0.528), with academic performance (r=0.545) and with self-reported physical activity per week (r=0.427). A fair negative correlation was found between physical fitness and Body Mass Index (BMI) (r=0.296). Conclusion This study confirms that physical fitness is positively associated with cognitive function, academic performance and self-reported physical activities and has a negative correlation with BMI.
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Affiliation(s)
- Sonam Jain
- Department of Community Physiotherapy, Sancheti Institute for Orthopedics and Rehabilitation, Pune, India
| | - Apurv Shimpi
- Professor and Head of Department of Community Physiotherapy, Sancheti Institute College of Physiotherapy, Pune, India
| | - Ashok Shyam
- Department of Community Physiotherapy, Sancheti Institute for Orthopedics and Rehabilitation, Pune, India
| | - Parag Sancheti
- Department of Community Physiotherapy, Sancheti Institute for Orthopedics and Rehabilitation, Pune, India
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132
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Acute Physical Activity, Executive Function, and Attention Performance in Children with Attention-Deficit Hyperactivity Disorder and Typically Developing Children: An Experimental Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17114071. [PMID: 32517384 PMCID: PMC7312258 DOI: 10.3390/ijerph17114071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 12/31/2022]
Abstract
A growing number of studies support the theory that physical activity can effectively foster the cognitive function of children with attention-deficit hyperactivity disorder (ADHD). The present study examines the effect of acute moderate physical activity on the executive functions and attention performance of (1) typically developing children (without psychological, psychiatric or neurological diagnosis and/or associated treatment stated in their medical history); (2) treatment-naïve ADHD children; and (3) medicated children with ADHD. In the current study, a total sample of 150 (50 non-medicated, 50 medicated, and 50 typically developing) children between the ages of 6 and 12 took part in the experiment. The Mini International Neuropsychiatric Interview for Children and Adolescents (MINI Kid) was used to measure ADHD and the child version of the Test of Attentional Performance (KiTAP) was applied to evaluate the children’s attentional and executive function performance before and after two types of intervention. In order to compare the effects of physical activity and control intervention, half of the children from each group (25 participants) took part in a 20-min long, moderately intense physical activity session on the 60–80% of their maximum heart rate, while watching a cartoon video. In the control condition, the other half of the children (25 participants) from each group watched the same cartoon video for 20 min while seated. Physical activity (compared to the just video watching control condition) had a significantly positive influence on 2 out of 15 measured parameters (median reaction time in the alertness task and error rates in the divided attention task) for the medicated group and on 2 out of the 15 measured variables (number of total errors and errors when distractor was presented, both in the distractibility task) regarding the treatment-naïve group. Future studies should focus on finding the optimal type, intensity, and duration of physical activity that could be a potential complementary intervention in treating deficits regarding ADHD in children.
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133
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Wen X, An Y, Li W, Du J, Xu W. How could physical activities and sleep influence affect inertia and affect variability? Evidence based on ecological momentary assessment. CURRENT PSYCHOLOGY 2020. [DOI: 10.1007/s12144-020-00803-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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134
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The effect of physical education lesson intensity and cognitive demand on subsequent learning behaviour. J Sci Med Sport 2020; 23:586-590. [DOI: 10.1016/j.jsams.2019.12.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 11/14/2019] [Accepted: 12/12/2019] [Indexed: 12/18/2022]
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135
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Acute exercise-related cognitive effects are not attributable to changes in end-tidal CO2 or cerebral blood velocity. Eur J Appl Physiol 2020; 120:1637-1649. [DOI: 10.1007/s00421-020-04393-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 05/12/2020] [Indexed: 01/20/2023]
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136
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Acute Effects of Aerobic Exercise on Cognitive Attention and Memory Performance: An Investigation on Duration-Based Dose-Response Relations and the Impact of Increased Arousal Levels. J Clin Med 2020; 9:jcm9051380. [PMID: 32397081 PMCID: PMC7291087 DOI: 10.3390/jcm9051380] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/22/2020] [Accepted: 05/01/2020] [Indexed: 11/17/2022] Open
Abstract
Current evidence indicates that acute aerobic exercise might increase domain-specific cognitive performance. However, only a small number of studies deduced the impact on lower and higher cognitive functions systematically or analyzed dose-response relationships and the underlying mechanisms. This study aimed to expose the dose-response relationships by investigating the influence of exercise duration on subjective and objective arousal, cognitive attention and visual recognition memory tasks. Nineteen participants (eight female; 25.69 ± 3.11 years) were included in a randomized, three-armed intervention study in a cross-over design. The participants completed three different interventions consisting of either 15, 30 or 45 min of cycling at 60-70% VO2max. Arousal and cognitive measurements were taken before and immediately after (<2 min) exercise. All three interventions led to significant but comparable effects on self-perceived arousal, heart rate (HR) and rating of perceived exertion (RPE) (p < 0.05). Analysis of variance (ANOVA) indicated significant effects of exercise duration on visual recognition memory accuracy. Reaction times for higher and lower cognitive tasks did not change after exercise. Fifteen minutes of aerobic exercise was feasible to induce beneficial changes in self-perceived arousal. Processing speed of visual recognition memory and attention remained unaltered. Exercise exceeding fifteen minutes seemed to negatively impact visual recognition memory accuracy.
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137
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Amico G, Schaefer S. Running During Encoding Improves Word Learning for Children. Front Psychol 2020; 11:684. [PMID: 32373027 PMCID: PMC7186412 DOI: 10.3389/fpsyg.2020.00684] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 03/20/2020] [Indexed: 11/24/2022] Open
Abstract
The learning of new information is an important task in everyday life, especially at a young age. Acute physical exercise can facilitate cognitive processes in multiple ways, and previous studies have shown that memory can profit from physical exercise before and during the encoding of vocabulary. The current study investigates the interplay of movement and vocabulary learning and also addresses lifespan differences in these effects. Participants were recruited in a recreational basketball club. Children (n = 24, Mage = 12.3 years; 13 girls), young adults (n = 30, Mage = 21.5 years; 17 women), and older adults (n = 24, Mage = 59.3 years; 9 women) learned 20 new pseudo-words, which corresponded to a German word. In a between-subjects design, encoding took place either while standing, while running, or while running and dribbling a basketball. Recall was assessed three times throughout the learning session and on the following day. In children, more words could be remembered in the running condition compared to the standing condition. There were no differences between conditions for the young and older adults. Age-dependent reasons for this pattern of results are discussed and embedded into the literature of physical exercise. Our result suggests that implementing learning activities into children’s physical education or exercise activities could be beneficial.
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Affiliation(s)
- Gianluca Amico
- Department of Sport Sciences, Saarland University, Saarbrücken, Germany
| | - Sabine Schaefer
- Department of Sport Sciences, Saarland University, Saarbrücken, Germany
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138
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Kovac K, Ferguson SA, Paterson JL, Aisbett B, Hilditch CJ, Reynolds AC, Vincent GE. Exercising Caution Upon Waking-Can Exercise Reduce Sleep Inertia? Front Physiol 2020; 11:254. [PMID: 32317980 PMCID: PMC7155753 DOI: 10.3389/fphys.2020.00254] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 03/05/2020] [Indexed: 11/13/2022] Open
Abstract
Sleep inertia, the transitional state of reduced alertness and impaired cognitive performance upon waking, is a safety risk for on-call personnel who can be required to perform critical tasks soon after waking. Sleep inertia countermeasures have previously been investigated; however, none have successfully dissipated sleep inertia within the first 15 min following waking. During this time, on-call personnel could already be driving, providing advice, or performing other safety-critical tasks. Exercise has not yet been investigated as a sleep inertia countermeasure but has the potential to stimulate the key physiological mechanisms that occur upon waking, including changes in cerebral blood flow, the cortisol awakening response, and increases in core body temperature. Here, we examine these physiological processes and hypothesize how exercise can stimulate them, positioning exercise as an effective sleep inertia countermeasure. We then propose key considerations for research investigating the efficacy of exercise as a sleep inertia countermeasure, including the need to determine the intensity and duration of exercise required to reduce sleep inertia, as well as testing the effectiveness of exercise across a range of conditions in which the severity of sleep inertia may vary. Finally, practical considerations are identified, including the recommendation that qualitative field-based research be conducted with on-call personnel to determine the potential constraints in utilizing exercise as a sleep inertia countermeasure in real-world scenarios.
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Affiliation(s)
- Katya Kovac
- Appleton Institute, School of Health, Medical and Applied Sciences, Central Queensland University, Adelaide, SA, Australia
| | - Sally A Ferguson
- Appleton Institute, School of Health, Medical and Applied Sciences, Central Queensland University, Adelaide, SA, Australia
| | - Jessica L Paterson
- Appleton Institute, School of Health, Medical and Applied Sciences, Central Queensland University, Adelaide, SA, Australia
| | - Brad Aisbett
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Cassie J Hilditch
- Fatigue Countermeasures Laboratory, San José State University Research Foundation, Moffett Field, CA, United States
| | - Amy C Reynolds
- Appleton Institute, School of Health, Medical and Applied Sciences, Central Queensland University, Adelaide, SA, Australia
| | - Grace E Vincent
- Appleton Institute, School of Health, Medical and Applied Sciences, Central Queensland University, Adelaide, SA, Australia
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139
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McSween MP, Coombes JS, MacKay CP, Rodriguez AD, Erickson KI, Copland DA, McMahon KL. The Immediate Effects of Acute Aerobic Exercise on Cognition in Healthy Older Adults: A Systematic Review. Sports Med 2020; 49:67-82. [PMID: 30560422 DOI: 10.1007/s40279-018-01039-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Age-related cognitive decline is a worldwide challenge, highlighting the need for safe, effective interventions that benefit cognition in older adults. Harnessing the immediate and long-term pleiotropic effects of aerobic exercise is one approach that has gained increasing interest. OBJECTIVE The aim of this review is to provide knowledge on the immediate effects of acute aerobic exercise on cognitive function of healthy older adults and to assess the methodological quality of studies investigating these effects. METHODS A database search in PubMed, CINAHL, Cochrane Central Register of Controlled Trials, Embase, PsycINFO, Web of Science, ClinicalTrials.gov and Google Scholar was conducted using a systematic search strategy. RESULTS Fifteen studies were identified and cognitive domains investigated included executive function and visual perception. Results from 14 of 15 studies showed that an acute bout of aerobic exercise can enhance at least one subsequent cognitive performance of healthy older adults when measured within 15 min post-exercise. CONCLUSION The small number of studies available, the limited domains of cognition investigated, the great variability between research protocols, and the low overall quality rating limits the conclusions that can be drawn. More comprehensive randomised controlled trials are needed to address these limitations and verify the potential benefits of acute aerobic exercise.
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Affiliation(s)
- Marie-Pier McSween
- School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia. .,UQ Centre for Clinical Research, The University of Queensland, Herston, QLD, Australia. .,School of Clinical Sciences and Institute of Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia.
| | - Jeff S Coombes
- School of Human Movement and Nutrition Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Christopher P MacKay
- School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Amy D Rodriguez
- School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia.,Department of Veterans Affairs, Centre for Visual and Neurocognitive Rehabilitation, Atlanta, GA, USA
| | - Kirk I Erickson
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | - David A Copland
- School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia.,UQ Centre for Clinical Research, The University of Queensland, Herston, QLD, Australia
| | - Katie L McMahon
- School of Clinical Sciences and Institute of Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia
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140
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Effect of Cycling on a Stationary Bike While Performing Assembly Tasks on Human Physiology and Performance Parameters. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17051761. [PMID: 32182731 PMCID: PMC7084503 DOI: 10.3390/ijerph17051761] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/05/2020] [Accepted: 03/07/2020] [Indexed: 11/27/2022]
Abstract
Objective: This study evaluated participants’ ability to assemble a computer keyboard while at a cycling workstation. Depending on task completion time, error percentage, and workload based on subjective workload ratings, subjective body discomfort, electroencephalography (EEG) and electrocardiographic (ECG) signals, human performances were compared at four different cycling conditions: no cycling, low level cycling (15 km/h), preferred level cycling, and high level cycling (25 km/h). Method: The experiment consisted of 16 participants. Each participant performed the test four times (each cycling condition) on different days. Results: The repeated measure test showed that the alpha and beta EEG signals were high during session times (post) when compared with session times (pre). Moreover, the mean interbeat (R-R) interval decreased after the participants performed the assembly while pedaling, possibly due to the physical effort of cycling. Conclusions: Pedaling had no significant effect on body discomfort ratings, task errors, or completion time.
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141
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Effects of an Acute Physical Activity Break on Test Anxiety and Math Test Performance. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17051523. [PMID: 32120880 PMCID: PMC7084198 DOI: 10.3390/ijerph17051523] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/20/2020] [Accepted: 02/25/2020] [Indexed: 12/27/2022]
Abstract
(1) Background: Test anxiety has been found to negatively affect students' mental health and academic performance. A primary explanation for this is that anxiety-related thoughts occupy working memory resources during testing that cannot be used for test-related processes (such as information retrieval and problem-solving). The present intervention study investigated whether physical activity could decrease anxiety levels and improve maths test performance in sixth-grade children. (2) Methods: Sixty-eight children of 11-12 years from two primary schools in New South Wales, Australia were categorised as low or high anxious from their scores on a trait-anxiety questionnaire. After this assessment, they were randomly assigned to the activity break condition, in which they had to do several physical activities of moderate intensity (i.e., star jumps) for 10 min, or the control condition, in which they played a vocabulary game for 10 min. The outcome measures were children's anxiety levels at the beginning, during, and at the end of the test, invested mental effort, perceived task difficulty and maths test performance. (3) Results: Results showed that regardless of the condition, low anxious students performed better on the maths test than high anxious children. No differences were found for any of the variables between the activity break condition and the control condition. (4) Conclusions: Although test anxiety was not reduced as expected, this study showed that short physical activity breaks can be used before examinations without impeding academic performance.
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142
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Xu Z, Wang ZR, Li J, Hu M, Xiang MQ. Effect of Acute Moderate-Intensity Exercise on the Mirror Neuron System: Role of Cardiovascular Fitness Level. Front Psychol 2020; 11:312. [PMID: 32153482 PMCID: PMC7047835 DOI: 10.3389/fpsyg.2020.00312] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 02/10/2020] [Indexed: 12/19/2022] Open
Abstract
Objectives The aims of this study were to use functional near-infrared spectroscopy (fNIRS) to determine whether cardiovascular fitness levels modulate the activation of the mirror neuron system (MNS) under table-setting tasks in non-exercise situation, to replicate the study that positive effect of acute moderate-intensity exercise on the MNS and investigate whether cardiovascular fitness levels modulates the effect of exercise on the activation of the MNS. Methods Thirty-six healthy college-aged participants completed a maximal graded exercise test (GXT) and were categorized as high, moderate, or low cardiovascular fitness. Participants then performed table-setting tasks including an action execution task (EXEC) and action observation task (OBS) prior to (PRE) and after (POST) either a rest condition (CTRL) or a cycling exercise condition (EXP). The EXP condition consisted of a 5-min warm-up, 15-min moderate-intensity exercise (65% VO2max), and 5-min cool-down. Results No significant differences were observed for Oxy-Hb and Deoxy-Hb between different cardiovascular fitness levels in the EXEC or OBS tasks in the non-exercise session. But there were significant improvements of oxygenated hemoglobin (Oxy-Hb) in the inferior frontal gyrus (IFG) and pre-motor area (PMC) regions under the OBS task following the acute moderate exercise. Particularly, the improvements (Post-Pre) of Δ Oxy-Hb were mainly observed in high and low fitness individuals. There was also a significant improvement of deoxygenated hemoglobin (Deoxy-Hb) in the IPL region under the OBS task. The following analysis indicated that exercise improved Δ Deoxy-Hb in high fitness individuals. Conclusion This study indicated that the activation of MNS was not modulated by the cardiovascular fitness levels in the non-exercise situation. We replicated the previous study that moderate exercise improved activation of MNS; we also provided the first empirical evidence that moderate-intensity exercise positively affects the MNS activation in college students of high and low cardiovascular fitness levels.
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Affiliation(s)
- Zebo Xu
- Department of Sports and Health, Guangzhou Sport University, Guangzhou, China.,Department of Linguistics and Modern Languages, The Chinese University of Hong Kong, Hong Kong, China
| | - Zi-Rong Wang
- Department of Graduation, Guangzhou Sport University, Guangzhou, China
| | - Jin Li
- Department of Graduation, Guangzhou Sport University, Guangzhou, China
| | - Min Hu
- Department of Sports and Health, Guangzhou Sport University, Guangzhou, China
| | - Ming-Qiang Xiang
- Department of Sports and Health, Guangzhou Sport University, Guangzhou, China
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143
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Watkins T, Umphress EE. Strong body, clear mind: Physical activity diminishes the effects of supervisor interpersonal injustice. PERSONNEL PSYCHOLOGY 2020. [DOI: 10.1111/peps.12384] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Trevor Watkins
- Department of Management, Marketing, and General Business Engler College of Business, West Texas A&M University Canyon Texas
| | - Elizabeth E. Umphress
- Department of Management and Organization Foster School of Business, University of Washington Seattle Washington
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144
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Kujach S, Olek RA, Byun K, Suwabe K, Sitek EJ, Ziemann E, Laskowski R, Soya H. Acute Sprint Interval Exercise Increases Both Cognitive Functions and Peripheral Neurotrophic Factors in Humans: The Possible Involvement of Lactate. Front Neurosci 2020; 13:1455. [PMID: 32038149 PMCID: PMC6989590 DOI: 10.3389/fnins.2019.01455] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 12/31/2019] [Indexed: 12/18/2022] Open
Abstract
There is increasing attention to sprint interval exercise (SIE) training as a time-efficient exercise regime. Recent studies, including our own (Kujach et al., 2018), have shown that acute high-intensity intermittent exercise can improve cognitive function; however, the neurobiological mechanisms underlying the effect still remain unknown. We thus examined the effects of acute SIE on cognitive function by monitoring the peripheral levels of growth and neurotrophic factors as well as blood lactate (LA) as potential mechanisms. Thirty-six young males participated in the current study and were divided into two groups: SIE (n = 20; mean age: 21.0 ± 0.9 years) and resting control (CTR) (n = 16; mean age: 21.7 ± 1.3 years). The SIE session consisted of 5 min of warm-up exercise and six sets of 30 s of all-out cycling exercise followed by 4.5 min of rest on a cycling-ergometer. Blood samples to evaluate the changes of serum concentrations of brain-derived neurotrophic factor (BDNF), insulin-like growth factor-1 (IGF-1), vascular endothelial growth factor (VEGF), and blood LA were obtained at three time points: before, immediately after, and 60 min after each session. A Stroop task (ST) and trail making test (TMT) parts A and B were used to assess cognitive functions. Acute SIE shortened response times for both the ST and TMT A and B. Meanwhile, the peripheral levels of BDNF, IGF-1, and VEGF were significantly increased after an acute bout of SIE compared to those in CTR. In response to acute SIE, blood LA levels significantly increased and correlated with increased levels of BDNF, IGF-1, and VEGF. Furthermore, cognitive function and BDNF are found to be correlated. The current results suggest that SIE could have beneficial effects on cognitive functions with increased neuroprotective factors along with peripheral LA concentration in humans.
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Affiliation(s)
- Sylwester Kujach
- Department of Physiology, Faculty of Physical Education, Gdansk University of Physical Education and Sport, Gdańsk, Poland.,Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, Poznań, Poland
| | - Robert Antoni Olek
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, Poznań, Poland
| | - Kyeongho Byun
- Sports Neuroscience Division, Advanced Research Initiative for Human High Performance, Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan.,Division of Sport Science, Incheon National University, Incheon, South Korea
| | - Kazuya Suwabe
- Sports Neuroscience Division, Advanced Research Initiative for Human High Performance, Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan
| | - Emilia J Sitek
- Neurological and Psychiatric Nursing Department, Faculty of Health Sciences, Medical University of Gdańsk, Gdańsk, Poland.,Neurology Department, St. Adalbert's Hospital, Poznań, Poland
| | - Ewa Ziemann
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, Poznań, Poland
| | - Radosław Laskowski
- Department of Physiology, Faculty of Physical Education, Gdansk University of Physical Education and Sport, Gdańsk, Poland
| | - Hideaki Soya
- Sports Neuroscience Division, Advanced Research Initiative for Human High Performance, Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan.,Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan
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145
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Schmitt A, Upadhyay N, Martin JA, Rojas S, Strüder HK, Boecker H. Modulation of Distinct Intrinsic Resting State Brain Networks by Acute Exercise Bouts of Differing Intensity. Brain Plast 2019; 5:39-55. [PMID: 31970059 PMCID: PMC6971822 DOI: 10.3233/bpl-190081] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Acute exercise bouts alter resting state functional connectivity (rs-FC) within cognitive, sensorimotor, and affective networks, but it remains unknown how these effects are influenced by exercise intensity. Twenty-five male athletes underwent individual fitness assessments using an incremental treadmill test. On separate days, they performed ‘low’ (35% below lactate threshold) and ‘high’ (20% above lactate threshold) intensity exercise bouts of 30 min. Rs-fMRI and Positive and Negative Affect Scale (PANAS) were acquired before and after each exercise bout. Networks of interest were extracted from twenty-two participants (3 dropouts). Pre-to-post changes and between conditions effects were evaluated using FSL’s randomise by applying repeated measures ANOVA. Results were reported at p < 0.05, corrected for multiple comparisons using threshold free cluster enhancement. PANAS revealed a significant increase in positive mood after both exercise conditions. Significant effects were observed between conditions in the right affective and reward network (ARN), the right fronto parietal network (FPN) and the sensorimotor network (SMN). Pre-to-post comparisons after ‘low’ exercise intensity revealed a significant increase in rs-FC in the left and right FPN, while after ‘high’-intensity exercise rs-FC decreased in the SMN and the dorsal attention network (DAN) and increased in the left ARN. Supporting recent findings, this study is the first to report distinct rs-FC alterations driven by exercise intensity: (i) Increased rs-FC in FPN may indicate beneficial functional plasticity for cognitive/attentional processing, (ii) increased rs-FC in ARN may be linked to endogenous opioid-mediated internal affective states. Finally, (iii) decreased rs-FC in the SMN may signify persistent motor fatigue. The distinct effects on rs-FC fit with theories of transient persistent network alterations after acute exercise bouts that are mediated by different exercise intensities and impact differentially on cognitive/attentional or affective responses.
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Affiliation(s)
- Angelika Schmitt
- Functional Neuroimaging Group, Department of Radiology, University Hospital Bonn, Bonn, Germany
| | - Neeraj Upadhyay
- DZNE, German Center for Neurodegenerative Diseases, Bonn, Germany
| | - Jason Anthony Martin
- Functional Neuroimaging Group, Department of Radiology, University Hospital Bonn, Bonn, Germany
| | - Sandra Rojas
- Institute of Movement and Neurosciences, German Sport University Cologne, Cologne, Germany
| | - Heiko Klaus Strüder
- Institute of Movement and Neurosciences, German Sport University Cologne, Cologne, Germany
| | - Henning Boecker
- Functional Neuroimaging Group, Department of Radiology, University Hospital Bonn, Bonn, Germany
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146
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Morava A, Fagan MJ, Prapavessis H. Effects of Caffeine and Acute Aerobic Exercise on Working Memory and Caffeine Withdrawal. Sci Rep 2019; 9:19644. [PMID: 31873185 PMCID: PMC6927973 DOI: 10.1038/s41598-019-56251-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 12/06/2019] [Indexed: 11/15/2022] Open
Abstract
Studies show that a single bout of exercise confers cognitive benefits. However, many individuals use psychoactive substances such as caffeine to enhance cognitive performance. The effects of acute exercise in comparison to caffeine on cognition remain unknown. Furthermore, caffeine use is associated with withdrawal symptoms upon cessation. Whether acute exercise can reduce withdrawal symptoms also remains unknown. The objectives of this study were to compare the effects of acute moderate intensity aerobic exercise to caffeine on working memory (WM) and caffeine withdrawal symptoms (CWS). In Phase I, non-caffeine (n = 29) and caffeine consumers (n = 30) completed a WM assessment, followed by acute exercise and caffeine. In Phase II, caffeine consumers (n = 25) from Phase I underwent the WM assessment and reported CWS following a 12-hour deprivation period. Acute moderate intensity aerobic exercise and caffeine (1.2 mg/kg) significantly improved WM accuracy and reduced CWS comparably. WM performance was not reduced following caffeine deprivation.
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Affiliation(s)
- Anisa Morava
- Western University, Exercise and Health Psychology Lab, Department of Kinesiology, Arthur and Sonia Labatt Health Sciences Building, London, Ontario, N6A 5B9, Canada.
| | - Matthew James Fagan
- University of British Columbia, Population Physical Activity Lab, School of Kinesiology, Lower Mall Research Station, British Columbia, V6T 1Z4, Canada
| | - Harry Prapavessis
- Western University, Exercise and Health Psychology Lab, Department of Kinesiology, Arthur and Sonia Labatt Health Sciences Building, London, Ontario, N6A 5B9, Canada
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147
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The Effects of Wellness In The Schools (WITS) on Physical Activity During Recess in New York City Public Schools. PHYSICAL ACTIVITY AND HEALTH 2019. [DOI: 10.5334/paah.44] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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148
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Finkenzeller T, Würth S, Amesberger G. Explanatory power of choice reaction after physical exertion in national team soccer players. GAZZETTA MEDICA ITALIANA ARCHIVIO PER LE SCIENZE MEDICHE 2019. [DOI: 10.23736/s0393-3660.18.03930-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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149
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Fitamen C, Blaye A, Camos V. Five-Year-Old Children's Working Memory Can Be Improved When Children Act On A Transparent Goal Cue. Sci Rep 2019; 9:15342. [PMID: 31653944 PMCID: PMC6814763 DOI: 10.1038/s41598-019-51869-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 10/09/2019] [Indexed: 11/10/2022] Open
Abstract
Working memory is a key component of human cognition and its development throughout childhood a major predictor of cognitive development and school achievement. Noticeably, preschoolers exhibit poor performance in working memory tasks. The present study aimed at testing different means to improve working memory performance in preschoolers. To this aim, we tested the effect of abstract and transparent goal cues in a Brown-Peterson task performed by 4- and 5-year-old preschoolers. If the transparent goal cue helps to better maintain the instructions, it should lead to better memory performance. Moreover, preschoolers had to track, either visually or with their fingers, the goal cue during the retention interval. If the motor activity favors the active engagement of the children in the task, the finger tracking should lead to improvement in memory performance. Our findings were that 5-year-old children benefitted from a transparent goal cue when they acted on it, while 4-year-old children did not show any improvement. These results suggest that working memory performance can be improved in 5-year-old children when the task embeds elements that can scaffold the task goal.
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Affiliation(s)
- Christophe Fitamen
- Université de Fribourg, Fribourg, Switzerland. .,Université d'Aix-Marseille & CNRS-LPC, Marseille, France.
| | - Agnès Blaye
- Université d'Aix-Marseille & CNRS-LPC, Marseille, France
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150
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Kronman CA, Kern KL, Nauer RK, Dunne MF, Storer TW, Schon K. Cardiorespiratory fitness predicts effective connectivity between the hippocampus and default mode network nodes in young adults. Hippocampus 2019; 30:526-541. [PMID: 31647603 DOI: 10.1002/hipo.23169] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 07/27/2019] [Accepted: 09/17/2019] [Indexed: 01/17/2023]
Abstract
Rodent and human studies examining the relationship between aerobic exercise, brain structure, and brain function indicate that the hippocampus (HC), a brain region critical for episodic memory, demonstrates striking plasticity in response to exercise. Beyond the hippocampal memory system, human studies also indicate that aerobic exercise and cardiorespiratory fitness (CRF) are associated with individual differences in large-scale brain networks responsible for broad cognitive domains. Examining network activity in large-scale resting-state brain networks may provide a link connecting the observed relationships between aerobic exercise, hippocampal plasticity, and cognitive enhancement within broad cognitive domains. Previously, CRF has been associated with increased functional connectivity of the default mode network (DMN), specifically in older adults. However, how CRF relates to the magnitude and directionality of connectivity, or effective connectivity, between the HC and other DMN nodes remains unknown. We used resting-state fMRI and conditional Granger causality analysis (CGCA) to test the hypothesis that CRF positively predicts effective connectivity between the HC and other DMN nodes in healthy young adults. Twenty-six participants (ages 18-35 years) underwent a treadmill test to determine CRF by estimating its primary determinant, maximal oxygen uptake (V. O2max ), and a 10-min resting-state fMRI scan to examine DMN effective connectivity. We identified the DMN using group independent component analysis and examined effective connectivity between nodes using CGCA. Linear regression analyses demonstrated that CRF significantly predicts causal influence from the HC to the ventromedial prefrontal cortex, posterior cingulate cortex, and lateral temporal cortex and to the HC from the dorsomedial prefrontal cortex. The observed relationship between CRF and hippocampal effective connectivity provides a link between the rodent literature, which demonstrates a relationship between aerobic exercise and hippocampal plasticity, and the human literature, which demonstrates a relationship between aerobic exercise and CRF and the enhancement of broad cognitive domains including, but not limited to, memory.
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Affiliation(s)
- Corey A Kronman
- Graduate Medical Sciences, Boston University School of Medicine, Boston, Massachusetts
| | - Kathryn L Kern
- Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, Massachusetts
| | - Rachel K Nauer
- Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, Massachusetts.,Department of Psychological and Brain Sciences, Boston University, Boston, Massachusetts.,Center for Memory and Brain, Boston University, Boston, Massachusetts.,Center for Systems Neuroscience, Boston University, Boston, Massachusetts
| | - Matthew F Dunne
- Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, Massachusetts.,Center for Systems Neuroscience, Boston University, Boston, Massachusetts
| | - Thomas W Storer
- Men's Health, Aging, and Metabolism Unit, Brigham and Women's Hospital, Boston, Massachusetts
| | - Karin Schon
- Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, Massachusetts.,Department of Psychological and Brain Sciences, Boston University, Boston, Massachusetts.,Center for Memory and Brain, Boston University, Boston, Massachusetts.,Center for Systems Neuroscience, Boston University, Boston, Massachusetts
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