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Walking economy and exercise efficiency in successful weight loss maintainers 成功减肥者的步行经济性和运动效率。
IF 2.4 3区 医学 Q2 BEHAVIORAL SCIENCES Pub Date : 2024-11-04 DOI: 10.1016/j.physbeh.2024.114730
Seth A. Creasy , Rebecca C. Rosenberg , Danielle M. Ostendorf , Ray Browning , Edward L. Melanson , Zhaoxing Pan , Victoria A. Catenacci

Purpose

Following short-term weight loss, the energetic cost of transport decreases and exercise efficiency increases. Whether changes persist during long-term weight maintenance is unknown.

Methods

We compared walking economy and exercise efficiency in weight loss maintainers (WLM, maintaining ≥13.6 kg weight loss for ≥1 year), controls without obesity (NC, BMI similar to current BMI of WLM), and controls with overweight/obesity (OC, BMI similar to pre-weight loss BMI of WLM). Energy expenditure (EE) and respiratory quotient were measured using indirect calorimetry at rest, while standing, and during treadmill walking. Gross and net energetic cost of transport (J/kg/m) was measured during level treadmill walking at 0.75, 1.12, and 1.52 m/s. Gross, net, and delta efficiency (%) were measured during inclined treadmill walking (2 %, 4 %, and 6 % grade) and a constant speed (1.12 m/s).

Results

WLM (n = 32, BMI: 23.8 ± 2.3 kg/m2) and NC (n = 28, BMI: 22.7 ± 1.6 kg/m2) had significantly lower EE (kJ/min) compared to OC (n = 26, BMI: 33.0 ± 4.5 kg/m2) during rest, standing, and walking (p < 0.01). Net energetic cost of transport was significantly lower in WLM compared to OC at 1.12 and 1.52 m/s (p < 0.05). Net efficiency was significantly greater in WLM compared to OC while walking (p ≤ 0.05). There were no significant differences between WLM and NC for any measures of economy or efficiency.

Conclusion

WLM had lower walking economy and greater walking efficiency compared to OC, but there were no differences between WLM and NC. Thus, individuals maintaining significant weight loss may be successful with long-term weight loss, in part, due to resistance against adaptive reductions in walking energetics.
目的:短期减肥后,运输的能量成本会降低,运动效率会提高。这些变化在长期体重维持过程中是否会持续,目前尚不清楚:我们比较了体重减轻维持者(WLM,体重减轻≥13.6 千克且维持≥1 年)、无肥胖对照组(NC,BMI 与 WLM 目前的 BMI 相似)和超重/肥胖对照组(OC,BMI 与 WLM 减重前的 BMI 相似)的步行经济性和运动效率。能量消耗(EE)和呼吸商是在休息、站立和跑步机行走时使用间接热量计测量的。以 0.75、1.12 和 1.52 米/秒的速度在水平跑步机上行走时,测量了运输的总能量成本和净能量成本(J/kg/m)。在倾斜跑步机上行走(坡度为 2%、4% 和 6%)和匀速(1.12 米/秒)时,测量了总效率、净效率和三角效率(%):结果:WLM(n=32,BMI:23.8±2.3 kg/m2)和 NC(n=28,BMI:22.7±1.6 kg/m2)与 OC(n=26,BMI:33.0±4.5 kg/m2)相比,在休息、站立和行走时的 EE(kJ/min)明显较低(p 结论:WLM 的行走经济性较低,而 NC 的行走经济性较高:与 OC 相比,WLM 的步行经济性更低,步行效率更高,但 WLM 和 NC 之间没有差异。因此,保持体重大幅下降的人之所以能成功实现长期减肥,部分原因是他们能够抵御步行能量的适应性降低。
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引用次数: 0
Taste and oral somatosensation: Role of PTC bitter sensitivity, gender, and age 味觉和口腔体感:PTC 苦味敏感性、性别和年龄的作用。
IF 2.4 3区 医学 Q2 BEHAVIORAL SCIENCES Pub Date : 2024-11-02 DOI: 10.1016/j.physbeh.2024.114727
Mariano Mastinu, Andreas Püschner, Saskia Gerlach, Thomas Hummel
Sensitivity to the bitterness of phenylthiocarbamide (PTC) is considered to be linked to general taste perception, which is higher in women, and exhibits a slight decrease with age. Additionally, PTC sensitivity may contribute to somatosensory perception of spiciness and astringency. However, controversial data have been reported. This study investigates the relation between PTC perception, age, and gender on taste and somatosensory sensitivity using the Seven-iTT. A total of 200 healthy participants were classified based on their PTC perception, and subjects underwent an extended version of Seven-iTT to identify and rate the intensity of twelve stimuli. Results indicated that individuals classified as Tasters (T) exhibited higher taste scores compared to Non-Tasters (NT) for PTC, with age serving as a significant factor (p ≤ 0.009). Women outperformed men only among NT (p = 0.019). Older T demonstrated higher taste sensitivity than NT, suggesting that PTC status might act as a protective factor of gustatory function in aging. While PTC taster status significantly affected the intensity of sweet, salty, and bitter sensations (p ≤ 0.032), it had minimal impact on the intensity of somatosensory sensations (capsaicin and tannins). The combined use of Seven-iTT and the investigation of PTC status show promise for applications in research and clinical practice, offering a comprehensive approach to understanding taste perception and its implications for diet, nutrition, and aging.
对苯硫代甲酰胺(PTC)苦味的敏感性被认为与一般味觉感知有关,女性的味觉感知较高,并随着年龄的增长而略有下降。此外,对 PTC 的敏感性可能有助于对辣味和涩味的体感。然而,有报道称这些数据存在争议。本研究使用 Seven-iTT 研究了 PTC 感知、年龄和性别与味觉和体感敏感度之间的关系。共对 200 名健康参与者进行了 PTC 感知分类,受试者接受了扩展版的 Seven-iTT 测试,对 12 种刺激的强度进行识别和评分。结果表明,与非品尝者(NT)相比,品尝者(T)的 PTC 味觉得分更高,年龄是一个重要因素(p ≤ 0.009)。只有在非品尝者中,女性的表现优于男性(p = 0.019)。老年 T 型人的味觉灵敏度高于 NT 型人,这表明 PTC 状态可能是衰老过程中味觉功能的一个保护因素。虽然 PTC 味觉对甜、咸和苦味的强度有明显影响(p ≤ 0.032),但对体感(辣椒素和单宁酸)的强度影响甚微。将 Seven-iTT 和 PTC 状态调查结合使用,有望应用于研究和临床实践,为了解味觉及其对饮食、营养和衰老的影响提供了一种全面的方法。
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引用次数: 0
Stair climbing interventions reduce postprandial hyperglycemia but not cognitive functions: findings of a randomized cross-over trial. 爬楼梯干预能降低餐后高血糖,但不能降低认知功能:一项随机交叉试验的结果。
IF 2.4 3区 医学 Q2 BEHAVIORAL SCIENCES Pub Date : 2024-11-01 DOI: 10.1016/j.physbeh.2024.114726
Eswaran Tpm Thirunavukarasu, Manaswi Reddy, Baskaran Chandrasekaran, Arun G Maiya, Chythra R Rao

Prolonged sitting can negatively impact postprandial glucose levels and cognitive functions. Stair climbing interventions have potential to mitigate these risks however remains unexplored. The present study aimed to explore the effects of stair climbing bouts on postprandial glucose and cognitive functions during prolonged sitting. Twenty-eight sedentary young adults (aged 20 - 30 years) underwent two intervention visits after standardized lunch for two hours: (1) STAIR: the participants climbed two flight of stairs for two minutes every 30 minutes; (2) SIT: the participants continued to sit. Blood glucose was measured using capillary finger prick method while attention function was measured using computer-based cognitive tests at baseline, end of 1st hour and 2nd hour. Significant interaction (F2, 54 = 15.96, p <0.001) was observed for conditions and time. During STAIR visit, significant changes in postprandial glucose at 1st hour (β = - 2.6 mmol/dl, p <0.001) and 2nd hour (β = 3.0 mmol/dl, p <0.001). No significant difference in the attention functions with time and conditions was observed. Stair climbing interruptions may be a promising solution to prevent high glycemic excursion occurring during prolonged sitting following postprandial sessions. However, the clinical benefits of stair climbing on attention functions remain unconvinced.

久坐会对餐后血糖水平和认知功能产生负面影响。爬楼梯干预措施具有减轻这些风险的潜力,但仍有待探索。本研究旨在探讨长时间坐着时爬楼梯对餐后血糖和认知功能的影响。28 名久坐不动的年轻人(20 - 30 岁)在标准午餐后接受了两个小时的干预访问:(1)STAIR:参与者每 30 分钟爬两层楼梯两分钟;(2)SIT:参与者继续坐着。在基线、第 1 小时结束和第 2 小时时,采用毛细血管指刺法测量血糖,并使用基于计算机的认知测试测量注意力功能。显著的交互作用(F2,54 = 15.96,P 第 1 小时(β = - 2.6 mmol/dl,P 第 2 小时(β = 3.0 mmol/dl,P
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引用次数: 0
SENP3 knockdown improves motor and cognitive impairments in the intranasal MPTP rodent model of Parkinson's disease 敲除 SENP3 可改善鼻内 MPTP 帕金森病啮齿动物模型的运动和认知障碍。
IF 2.4 3区 医学 Q2 BEHAVIORAL SCIENCES Pub Date : 2024-10-31 DOI: 10.1016/j.physbeh.2024.114725
Ericks S. Soares , Leticia Y. Queiroz , Jaquelini B. Canever , Gustavo Griebner , Carolina U. Stahler , Daniel S. Mansur , Rui Daniel S. Prediger , Helena I. Cimarosti
Several mechanisms underlying Parkinson's disease (PD) remain unclear, and effective treatments are still lacking. The conjugation of the small ubiquitin-like modifier (SUMO), known as SUMOylation, to key proteins in PD has shown potential beneficial effects. Considering that this process is reversed by SUMO-specific proteases (SENPs), this study addressed the effects of increased SUMO-2/3 conjugation, mediated by SENP3 knockdown, in the intranasal 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) rodent model of PD. Two weeks after infusion of the shRNA-containing lentiviral vector into the dorsolateral striatum and one week following intranasal MPTP administration, male Wistar rats were evaluated using cognitive and motor behavioural tests. Infection efficiency was confirmed by detecting GFP expression in the dorsolateral striatum. SENP3 knockdown, verified by Western blotting, resulted in increased SUMO-2/3 conjugation. MPTP-administered rats displayed impairments in both recognition and spatial memories, while SENP3 knockdown prevented these deficits. Rats exposed to MPTP also exhibited motor dysfunction, which was ameliorated by SENP3 knockdown. These findings underscore the involvement of SUMO-2/3 conjugation in PD and its potential as a novel therapeutic target to counteract cognitive and motor impairments induced by neurodegeneration.
帕金森病(Parkinson's disease,PD)的几种发病机制尚不清楚,也缺乏有效的治疗方法。在帕金森病中,小泛素样修饰物(SUMO)与关键蛋白的共轭(称为 SUMOylation)已显示出潜在的有益作用。考虑到这一过程会被SUMO特异性蛋白酶(SENPs)逆转,本研究探讨了在鼻内注射1-甲基-4-苯基-1,2,3,6-四氢吡啶(MPTP)的啮齿动物帕金森病模型中,由SENP3敲除介导的SUMO-2/3共轭作用增加所产生的影响。将含有 shRNA 的慢病毒载体注入背外侧纹状体两周后,以及鼻内注射 MPTP 一周后,用认知和运动行为测试对雄性 Wistar 大鼠进行评估。通过检测背外侧纹状体中的 GFP 表达来确认感染效率。通过 Western 印迹验证,SENP3 基因敲除导致 SUMO-2/3 连接增加。服用 MPTP 的大鼠在识别和空间记忆方面都出现了障碍,而 SENP3 的敲除则防止了这些障碍的出现。暴露于 MPTP 的大鼠还表现出运动功能障碍,而 SENP3 基因敲除可改善这种障碍。这些发现强调了SUMO-2/3共轭在帕金森病中的参与及其作为一种新型治疗靶点以对抗神经变性引起的认知和运动障碍的潜力。
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引用次数: 0
Self-reported and physiological stress indicators and the moderating role of the Dark Tetrad in violent and non-violent gaming 暴力和非暴力游戏中的自我报告和生理压力指标以及 "黑暗四项 "的调节作用。
IF 2.4 3区 医学 Q2 BEHAVIORAL SCIENCES Pub Date : 2024-10-30 DOI: 10.1016/j.physbeh.2024.114724
Gary L. Wagener, André Melzer
Playing non-violent video games has been shown to reduce perceived levels of stress (Pallavicini et al., 2021). Does this effect also apply to violent game content? As findings suggest a particular preference for such games among people with certain personality traits, such as the Dark Tetrad (i.e., Machiavellianism, everyday sadism, subclinical psychopathy, and narcissism; e.g., Bonfá-Araujo et al., 2022; Greitemeyer, 2015; Greitemeyer & Sagioglou, 2017) do these traits influence the stress they feel? In the present lab experiment, potential stress-reducing effects of violent and non-violent video games were compared to a control condition (solving a jigsaw puzzle). Cortisol levels, heart rate variability (HRV), and self-reported stress levels were assessed before, during, and after gameplay. Irrespective of game condition, playing video game passages decreased cortisol levels, a typical indicator of stress. In addition, playing violent games led to a significant decrease in certain HRV indicators (i.e., ratio of low frequency power to high-frequency power), thus providing additional support for stress relief. In contrast, trying to solve a jigsaw puzzle did not result in stress reduction. Most results involving the Dark Tetrad traits showed null findings. However, participants with greater Dark Tetrad expressions experienced more relaxation after violent gameplay while showing greater stress reaction after trying to solve a jigsaw puzzle. The present results indicate that playing violent or non-violent video games can lead to physiological relaxation—an important finding for future research on the potential of video games for stress relief interventions.
事实证明,玩非暴力电子游戏可以降低感知到的压力水平(Pallavicini et al, 2021)。这种效应是否也适用于暴力游戏内容?研究结果表明,具有某些人格特质的人特别偏爱此类游戏,如黑暗四分体(即马基雅维利主义、日常虐待狂、亚临床精神变态和自恋;例如,Bonfá-Araujo 等人,2022;Greitemeyer,2015;Greitemeyer & Sagioglou,2017),这些人格特质是否会影响他们感受到的压力?在本实验室实验中,将非暴力和非暴力视频游戏的潜在减压效果与对照条件(解拼图游戏)进行了比较。在游戏前、游戏中和游戏后,对皮质醇水平、心率变异性(HRV)和自我报告的压力水平进行了评估。无论游戏条件如何,玩电子游戏都会降低皮质醇水平,而皮质醇是压力的典型指标。此外,玩暴力游戏导致某些心率变异指标(即低频功率与高频功率之比)显著下降,从而为缓解压力提供了更多支持。相比之下,尝试解拼图游戏并没有减轻压力。大多数涉及 "黑暗四项 "特质的结果都是无效的。然而,在尝试解拼图游戏后,具有较强黑暗四项特质的参与者在玩暴力游戏后体验到了更多的放松,而在尝试解拼图游戏后则表现出更大的压力反应。本研究结果表明,玩暴力或非暴力电子游戏都会导致生理放松--这对今后研究电子游戏在缓解压力干预方面的潜力具有重要意义。
{"title":"Self-reported and physiological stress indicators and the moderating role of the Dark Tetrad in violent and non-violent gaming","authors":"Gary L. Wagener,&nbsp;André Melzer","doi":"10.1016/j.physbeh.2024.114724","DOIUrl":"10.1016/j.physbeh.2024.114724","url":null,"abstract":"<div><div>Playing non-violent video games has been shown to reduce perceived levels of stress (Pallavicini et al., 2021). Does this effect also apply to violent game content? As findings suggest a particular preference for such games among people with certain personality traits, such as the Dark Tetrad (i.e., Machiavellianism, everyday sadism, subclinical psychopathy, and narcissism; e.g., Bonfá-Araujo et al., 2022; Greitemeyer, 2015; Greitemeyer &amp; Sagioglou, 2017) do these traits influence the stress they feel? In the present lab experiment, potential stress-reducing effects of violent and non-violent video games were compared to a control condition (solving a jigsaw puzzle). Cortisol levels, heart rate variability (HRV), and self-reported stress levels were assessed before, during, and after gameplay. Irrespective of game condition, playing video game passages decreased cortisol levels, a typical indicator of stress. In addition, playing violent games led to a significant decrease in certain HRV indicators (i.e., ratio of low frequency power to high-frequency power), thus providing additional support for stress relief. In contrast, trying to solve a jigsaw puzzle did not result in stress reduction. Most results involving the Dark Tetrad traits showed null findings. However, participants with greater Dark Tetrad expressions experienced more relaxation after violent gameplay while showing greater stress reaction after trying to solve a jigsaw puzzle. The present results indicate that playing violent or non-violent video games can lead to physiological relaxation—an important finding for future research on the potential of video games for stress relief interventions.</div></div>","PeriodicalId":20201,"journal":{"name":"Physiology & Behavior","volume":"288 ","pages":"Article 114724"},"PeriodicalIF":2.4,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142558525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of maternal preconception high-fat diet on the fertility of dams and on the somatic parameters and reflex ontogeny of their male offspring 母体受孕前高脂肪饮食对母体生育能力及其雄性后代躯体参数和反射发育的影响
IF 2.4 3区 医学 Q2 BEHAVIORAL SCIENCES Pub Date : 2024-10-30 DOI: 10.1016/j.physbeh.2024.114723
Maria Letícia da Veiga Dutra , Danielle Melo de Souza , Harley Mateus Coutinho Correia Santos , José Patrocínio Ribeiro Cruz Neto , Naís Lira Soares , Anne Caroline Alves Vieira , Isabelle Karoline Carvalho Costa , Thaís Bayma Barbosa Rolim , Ângela Maria Tribuzy de Magalhães Cordeiro , Diogo Antônio Alves de Vasconcelos , Eduardo Carvalho Lira , Adriano Francisco Alves , Jailane de Souza Aquino

Background

Female consumption of a high-fat diet (HFD) may cause fertility issues and affects offspring development.

Objective

Evaluate the acute maternal preconception intake of a HFD on the fertility and reproduction parameters of breeding females; and on the somatic parameters and reflex ontogeny of male offspring.

Methods

Twenty-four rats were randomized into control (PC; n=12) and high-fat diet group (PHF; n=12) that consumed their respective diets during the 23-day preconception period. After that, 6 rats per group underwent oral glucose tolerance and insulin tolerance tests and were euthanized. The remaining rats were mated, during gestation and lactation, both groups ate a control diet. After birth, the male offspring's somatic parameters and reflexes were assessed.

Results

The preconception diet caused dyslipidemia in the PHF. The PHF uterus exhibited a higher SFA (50.74 ± 0.32 %), a lower PUFA concentration (35.59 ± 0.33 %), and an increase in arachidonic acid (2.48 ± 0.03 %). PHF rats had hypertrophy in the endometrium, and ovaries with a higher quantity of corpora albicans and immature primordial follicles. The offspring of PHF rats had greater weight (6.70 ± 0.82 g), nasal-anal length (4.93± 0.27 cm), and tail length (1.74 ± 0.12 cm) on the first day of life, and had improved righting reflex, but delayed negative geotaxis reflex.

Conclusions

An acute maternal preconception HFD induced a pro-inflammatory fatty acid profile and changed structure in uterus, altered ovarian follicle profile. Also, potential interference in the size of the pups at birth and in brain development of male offspring.
背景:雌性摄入高脂饮食(HFD)可能会导致生育问题并影响后代发育:目的:评估母体孕前摄入高脂饮食对繁殖雌性大鼠生育力和生殖参数的影响,以及对雄性大鼠后代躯体参数和反射发育的影响:将 24 只大鼠随机分为对照组(PC;n=12)和高脂饮食组(PHF;n=12),在 23 天的孕前期摄入各自的饮食。之后,每组 6 只大鼠接受口服葡萄糖耐量和胰岛素耐量测试,并被安乐死。其余大鼠交配,在妊娠期和哺乳期,两组大鼠均食用对照组食物。出生后,对雄性后代的躯体参数和反射进行评估:结果:孕前饮食导致PHF血脂异常。PHF子宫中的SFA含量较高(50.74 ± 0.32%),PUFA含量较低(35.59 ± 0.33%),花生四烯酸含量增加(2.48 ± 0.03%)。PHF 大鼠的子宫内膜肥厚,卵巢中白细胞和未成熟原始卵泡的数量较多。PHF大鼠的后代出生后第一天体重(6.70±0.82克)、鼻肛长(4.93±0.27厘米)和尾长(1.74±0.12厘米)均较大,右倾反射有所改善,但负性地轴反射延迟:结论:孕前母体急性高能低密度脂蛋白膳食会诱发促炎症脂肪酸,改变子宫结构,改变卵巢卵泡结构。此外,幼崽出生时的大小和雄性后代的大脑发育也可能受到干扰。
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引用次数: 0
Repeated balance exercise promotes cholinergic neuroprotection of the pedunculopontine nucleus in a progressive model of Parkinson's disease 在渐进性帕金森病模型中,重复平衡运动可促进足底核的胆碱能神经保护。
IF 2.4 3区 医学 Q2 BEHAVIORAL SCIENCES Pub Date : 2024-10-28 DOI: 10.1016/j.physbeh.2024.114722
Thassya F.O. dos Santos , João E.C. Melo , Heitor F. Santos , José L.S. Souza , Edson de R. Santos , Maria C.S. de Oliveira , José M.M. Bispo , Katty A.A.L. Medeiros , Lívia C.R.F. Lins , Edenia C. Menezes , Auderlan M. de Gois , Regina H. Silva , Alessandra M. Ribeiro , José R. dos Santos
Vestibular rehabilitation (VR) is a therapeutic approach that minimizes the impacts of balance alterations by enhancing the central vestibular compensation mechanism. The present study investigates the effect of repeated balance exercises on the central vestibular compensation mechanism in a reserpine-induced progressive model of parkinsonism in aged rats. Male Wistar rats were assigned to three cohort experiments: Exp 1: repeated balance exercises (narrow beam test) – performed every 48 h during 20 days; Exp 2: balance exercises performed on the 0th and 8th days; Exp 3: balance exercises performed only on the 0th and 20th days. For each experiment, the animals were divided into two groups (n = 7 per group): CTL (vehicle) and RES (reserpine 0.1 mg/kg). The animals received 4 (exp. 2) or 10 (exp 1 and 3) s.c. injections (0.1 mg/kg), one every 48 h. The cohorts were evaluated using catalepsy and open field tests (0th, 8th and 20th days). After completion of behavioral tests, the brains were analyzed for immunohistochemistry for tyrosine hydroxylase (TH) and choline acetyltransferase (ChAT). The RES group presented motor deficits in the catalepsy and open field tests on day 20, but not on day 8. There was no decrease in the number of TH neurons and terminals in the substantia nigra pars compacta (SNpc), ventral tegmental area (VTA) and dorsal striatum (DS) for animals from Exp. 2. However, a decrease was observed in the SNpc, VTA and striatum of animals from Exp 1 and Exp 3. In the balance beam test, the animals in the RES group showed a longer crossing time from day 8 to day 14 (Exp 1), on the 8th day (Exp 2) and on the 20th day (Exp. 3). This finding was correlated with a decrease in the number of ChAT immunoreactive cells in the pedunculopontine tegmental nucleus (PPN) for the animals that performed the dynamic balance test only once (Exp. 2 and 3), but no reduction was observed in the animals that performed the test repeatedly (Epx. 1). Thus, it was possible to verify that repeated exposure of the animals to balance assessment tasks potentiated the performance of the central vestibular compensation mechanism in the animal model of parkinsonism.
前庭康复(VR)是一种治疗方法,它通过增强中枢前庭补偿机制来最大限度地减少平衡改变的影响。本研究探讨了在利血平诱导的渐进性帕金森病模型中,重复平衡练习对老年大鼠中枢前庭补偿机制的影响。雄性 Wistar 大鼠被分配到三个队列实验中:实验 1:重复平衡练习(窄梁测试)--在 20 天内每 48 小时进行一次;实验 2:在第 0 天和第 8 天进行平衡练习;实验 3:仅在第 0 天和第 20 天进行平衡练习。每次实验将动物分为两组(每组 n = 7):CTL(载体)和 RES(瑞舍平 0.1 毫克/千克)。动物接受 4 次(实验 2)或 10 次(实验 1 和 3)静脉注射(0.1 毫克/千克),每 48 小时一次。在第 0 天、第 8 天和第 20 天对动物进行了催眠和开阔地测试评估。行为测试结束后,对大脑进行酪氨酸羟化酶(TH)和胆碱乙酰转移酶(ChAT)免疫组化分析。RES 组在第 20 天的催眠和开阔地测试中出现运动障碍,而在第 8 天则没有。实验 2 动物的黑质紧密区(SNpc)、腹侧被盖区(VTA)和背侧纹状体(DS)中的 TH 神经元和终端数量没有减少。在平衡木测试中,RES组动物从第8天到第14天(实验1)、第8天(实验2)和第20天(实验3)的穿越时间较长。这一发现与只进行了一次动态平衡试验(试验 2 和试验 3)的动物足底部被盖核中 ChAT 免疫反应细胞数量的减少有关,但在重复进行试验(试验 1)的动物中没有观察到减少。因此,在帕金森氏症动物模型中,重复接触平衡评估任务可以增强中枢前庭补偿机制的功能。
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引用次数: 0
Relationship between autonomic nervous function and brain functions such as memory and attention 自律神经功能与记忆力和注意力等大脑功能之间的关系。
IF 2.4 3区 医学 Q2 BEHAVIORAL SCIENCES Pub Date : 2024-10-22 DOI: 10.1016/j.physbeh.2024.114721
Sakura Tatsumi , Daisuke Kuratsune , Hirohiko Kuratsune
This study aimed to evaluate the relationship between autonomic nervous function (ANF) and cognitive abilities, such as memory and attention, using the Kana pick-out test (KPT). The participants were 11 female college students aged 21 years old. Each participant completed the KPT ten times, during which their ANF was assessed via heart rate variability analysis. During the KPT, participants circled Japanese vowels in a 400-character story written in hiragana. We measured attention using the KPT score and assessed memory using a memory score based on ten descriptive questions about the story. Statistical analysis revealed a significant positive correlation between higher KPT and memory scores, indicating a link between memory and attention. The parasympathetic sinus modulation marker, high-frequency component power (HF), decreased during the kana-picking task (Interval B) and recovered during the subsequent content verification task (Interval C). In Interval A (before the kana-picking task), the HF showed a positive correlation with both the KPT and memory scores. Additionally, a positive correlation was observed between HF and memory scores during interval B. Other autonomic nervous indices, including low-frequency component power (LF), total power (TP), and LF/HF ratio, also showed significant correlations with KPT and memory scores. Our findings strongly suggest that ANF is intricately connected to cognitive functions, such as memory and attention. This indicates that monitoring ANF could provide a novel methodology for assessing learning and occupational efficiency.
本研究旨在通过卡纳剔除测试(KPT)评估自律神经功能(ANF)与记忆力和注意力等认知能力之间的关系。研究对象为 11 名 21 岁的女大学生。每位受试者都完成了十次 KPT,其间通过心率变异性分析对其 ANF 进行了评估。在 KPT 过程中,受试者在用平假名书写的 400 个字符的故事中圈出日语元音。我们使用 KPT 分数来测量注意力,并根据有关故事的十个描述性问题使用记忆分数来评估记忆力。统计分析显示,较高的 KPT 分数与记忆分数之间存在明显的正相关,这表明记忆与注意力之间存在联系。副交感神经窦调节标志物--高频成分功率(HF)在假名摘取任务(B 区间)期间下降,在随后的内容验证任务(C 区间)期间恢复。在 A 区间(假名拣选任务之前),高频与 KPT 和记忆得分均呈正相关。其他自律神经指数,包括低频分量功率(LF)、总功率(TP)和 LF/HF 比值,也与 KPT 和记忆得分呈显著相关。我们的研究结果有力地表明,ANF 与记忆和注意力等认知功能密切相关。这表明,监测 ANF 可以为评估学习和工作效率提供一种新方法。
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引用次数: 0
The effects of music mood and binaural beats on academic advertising 音乐情绪和双耳节拍对学术广告的影响。
IF 2.4 3区 医学 Q2 BEHAVIORAL SCIENCES Pub Date : 2024-10-21 DOI: 10.1016/j.physbeh.2024.114720
Fatih Baha Omeroglu, Yueqing Li, Victor Zaloom, James Curry, Alberto Marquez
How music affects our mood, cognition, and feelings has been studied extensively. Since the effect of music on mood and cognition has been demonstrated many times, it has found significant applications, particularly in advertising. In recent years, the use of music in advertising has grown significantly, with 86 % of advertisements now incorporating some form of musical stimuli. Our study specifically analyzed the effect of music mood in advertising while introducing the new concept of binaural beats. Conducted in a lab setting, the study incorporated biometric measures such as electroencephalography (EEG) and eye-tracking to enhance the research. The results revealed that calming music combined with binaural beats led to the highest levels of information retention and engagement, as indicated by increased left frontal beta power, relative theta power, and area of interest (AOI) dwell time percentages. Left frontal beta power is associated with increased attention and cognitive engagement, while relative theta power is linked to enhanced memory encoding and relaxation. The area of interest (AOI) dwell time percentages reflects the time participants focused on key areas of the advertisement, indicating higher attention levels. Although the study found unique connections between music mood and binaural beats, calming music with binaural beats produced the most favorable conditions for attention and memory retention. These findings provide valuable guidelines for future marketing strategies, particularly in academic advertising.
人们对音乐如何影响我们的情绪、认知和情感进行了广泛的研究。由于音乐对情绪和认知的影响已被多次证实,它已被广泛应用,尤其是在广告中。近年来,音乐在广告中的应用大幅增加,目前有 86% 的广告都包含了某种形式的音乐刺激。我们的研究专门分析了广告中音乐情绪的影响,同时引入了双耳节拍这一新概念。这项研究在实验室环境中进行,采用了脑电图(EEG)和眼球跟踪等生物测量手段来加强研究。研究结果表明,平静的音乐与双耳节拍相结合,信息保持率和参与度最高,左前额β功率、相对θ功率和感兴趣区(AOI)停留时间百分比均有所提高。左额β功率与注意力和认知参与度的提高有关,而相对θ功率则与记忆编码的增强和放松有关。兴趣区域(AOI)停留时间百分比反映了参与者专注于广告关键区域的时间,表明注意力水平较高。尽管研究发现了音乐情绪与双耳节拍之间的独特联系,但带有双耳节拍的平和音乐对注意力和记忆保持最有利。这些发现为未来的营销策略,尤其是学术广告提供了宝贵的指导。
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引用次数: 0
Exercise intensity of virtual reality exergaming modulates the responses to executive function and affective response in sedentary young adults: A randomized, controlled crossover feasibility study 虚拟现实游戏的运动强度可调节久坐不动的年轻人的执行功能和情感反应:一项随机对照交叉可行性研究。
IF 2.4 3区 医学 Q2 BEHAVIORAL SCIENCES Pub Date : 2024-10-19 DOI: 10.1016/j.physbeh.2024.114719
Qian Gu , Jie Mao , Jinhai Sun , Wei-Peng Teo
Virtual reality (VR) exergaming is a novel strategy to encourage physical activity and boost emotional well-being. However, its effects on executive function (EF) are not fully understood. This study assessed the immediate and retention effects of immersive VR exergaming, at varying exercise intensities, on EF and affect among sedentary college students. Thirty participants (mean age = 22.2 ± 2.5 years; 18 females) underwent 15-minute sessions of moderate-intensity (MI), high-intensity (HI), and active-control intensity (AC) VR exergaming in a counterbalanced order. EF was evaluated using the Flanker, Task-switching, and N-back tasks before, immediately after, and 30 min post-intervention. Emotional valence and arousal were measured by the Feeling Scale and Felt Arousal Scale, respectively. The inverse efficiency score (IES) results indicated that inhibitory control was higher following both MI and HI exergaming compared to AC (p < 0.05), with improvements sustained for 30 minutes HI VR exergaming showed the greatest improvement (p = 0.048). Both HI and MI also exhibited higher working memory capacity than AC (p < 0.05), with HI performing better (p = 0.039). No significant differences in task-switching performance were observed among the groups (p > 0.05). Emotional valence and arousal were significantly elevated immediately after and sustained for 30 minutes following MI and HI exergaming (p < 0.05). This study demonstrates the cognitive and affective benefits of MI and HI VR exergaming in young adults, with HI VR exergaming showing longer-lasting improvements. These findings suggest that immersive VR exergaming can enhance both physical and cognitive health, potentially improving academic performance and daily functionality in collegiate populations.
虚拟现实(VR)益智游戏是一种鼓励体育锻炼和提高情绪健康的新策略。然而,人们对其对执行功能(EF)的影响还不完全了解。本研究评估了不同运动强度的沉浸式 VR 电子游戏对久坐不动的大学生的执行功能和情感的即时和持续影响。30名参与者(平均年龄为22.2±2.5岁;18名女性)按照平衡顺序分别接受了15分钟的中等强度(MI)、高强度(HI)和主动控制强度(AC)VR游戏。在干预前、干预后和干预后30分钟内,分别使用侧翼任务、任务切换和N-back任务对EF进行评估。情绪价值和唤醒分别通过感觉量表和感觉唤醒量表进行测量。反向效率评分(IES)结果表明,与 AC 相比,MI 和 HI 外部游戏后的抑制控制能力更高(P < 0.05),并且这种改善持续了 30 分钟。HI VR 发力游戏的改善幅度最大(p = 0.048)。HI 和 MI 的工作记忆能力也高于 AC(p < 0.05),其中 HI 表现更好(p = 0.039)。各组之间的任务切换能力没有明显差异(p > 0.05)。在进行 MI 和 HI 外部游戏后,情绪价值和唤醒度立即明显升高,并持续 30 分钟(p < 0.05)。这项研究表明,MI 和 HI VR 外部游戏对年轻人的认知和情感都有益处,其中 HI VR 外部游戏的改善效果更为持久。这些研究结果表明,沉浸式 VR 外部游戏可以增强体质和认知健康,从而提高大学生的学习成绩和日常功能。
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Physiology & Behavior
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