沉浸互动模型:滑雪消费心流体验机制的质性研究     

翁银  李凌 《成都体育学院学报》2020,(2):78-84

刺激滑雪消费增长与促进滑雪产业发展是当今的热点议题。本研究引入心流体验与心流体验机制理论,探索滑雪消费心理特征与滑雪可持续消费心理模型。从微观消费心理视角切入,运用扎根理论质性研究手段,采取深度访谈与焦点团体访谈相结合的访谈技术,经"三级诠释"逻辑分析的过程,构建了滑雪消费心流体验机制的理论模型。结果显示:本研究共提取了滑雪消费心流体验机制的102个概念、36个范畴、4个主范畴,基于扎根理论故事线逻辑梳理并构建了"沉浸互动机制"质性模型。基于此,为提升本研究的理论可靠性,采用模型识别比较分析,检验本研究质性模型的创新性与科学性,为促进滑雪产业可持续发展提供相关理论参考。  相似文献   

我国体育用品制造业转型升级与服务业发展的关系研究     

高贺  付志华  陈颇  赵恒  张铖  周良云 《南京体育学院学报(社会科学版)》2019,2(6):64-70

采用中国大陆东部、中西和西部三大经济区2008—2015年的面板数据，运用Johanson面板协整关系检验、Granger因果关系检验与面板数据误差修正模型，实证检验了我国体育用品制造业升级与服务业发展之间的因果关系。研究结果表明：不管是东部经济发达地区，还是中西部经济落后地区，体育用品制造业升级和服务业发展之间的协同互动关系均未建立起来，三大经济区体育用品制造业升级与服务业发展之间仅存在单向的因果关系。在东西部经济区，体育用品制造业升级是服务业发展的长期原因，但在中部经济区，服务业发展则是体育用品制造业升级的长期原因。从整体来看，虽然中国是一个体育用品制造和出口大国，但由于缺乏核心技术，产品全球竞争力较弱，国际话语权仍非常有限，与国内服务业发展相比，三大经济区体育用品制造业发展还处于相对较低的水平。最后，从互补性视角提出我国体育用品制造业与服务业发展的战略举措。  相似文献   

不同收入的城镇居民对体育消费结构和体育消费需求的影响*     

于〓乐  程〓蕾 《广州体育学院学报》2019,(5):26-30

采用问卷调查和数理统计方法，研究了不同收入的居民对体育消费结构和体育消费需求的影响。结果表明，随着居民收入的增加，各类体育消费都呈现上升趋势，实物型体育消费增长速度变慢，观赏型体育消费和健身型体育消费增长速度变快，当居民年收入在10万以上时，观赏型体育消费和健身型体育消费开始急剧增加。制约体育消费需求的主要因素是居民的收入、体育消费的价格、体育消费结构和居民的可支配时间。  相似文献   

新时代我国体育消费力提升研究     

孙威  王晓辉 《沈阳体育学院学报》2020,(3):49-55

当前我国体育消费力较弱,亟需通过研究提升体育消费力。运用文献资料、逻辑分析等方法,依据马克思消费力理论提出并解析了体育消费力的4要素及其现实情况:体育供给不到位导致消费品难以满足需求、居民收入不平衡限制消费者的支付能力、体育环境不规范阻滞良好消费氛围的形成、体育消费者不成熟拉低消费力的整体水平。体育消费力提升路径:以供给侧结构性改革为主线有效优化体育供给力,以拓宽人民增收渠道为手段动态平衡居民可支配收入,以完善市场化引导监督机制为动力合理规范体育社会环境,以强化消费者要素整合能力为抓手全面提升体育消费者成熟度。  相似文献   

改革开放40年高等体育教育资源优化配置的社会学审视     

张孔军  钱娅艳 《北京体育大学学报》2019,42(2):103-114

摘要：我国高等体育教育资源优化配置研究引入社会学视角理论与方法，理论与实践均取得专家的认同。运用文献资料法、专家访谈法和实地考察法等方法发现，在计划经济体制下我国高等体育教育资源配置主体单一性、手段行政化和政治倾向性强，凸显出高等体育教育资源配置缺乏激励机制和市场竞争机制的问题，造成高等体育教育资源配置成本最大化和社会效应的最小化问题较多。自改革开放以来,随着我国市场经济体制的建立为高等体育教育资源优化配置提供了难得的发展机遇，我国高等体育教育资源配置取得了明显成效，但仍然存在高等体育教育资源配置机制滞后、体制机制改革创新步伐缓慢、高等体育教育资源配置不合理以及民办普通高校体育教育资源配置严重不足等问题。据此，从社会学研究的视角，提出了构建多主体推动高等体育教育资源优化配置创新的发展模式、多元化高等体育教育资源优化配置资金投入的保障体系、高等体育教育资源优化配置均衡发展的运行机制和大学城体育教育资源“共建共享”的创新发展模式的新时代我国高等体育教育资源优化配置的发展策略，旨在服务新时代全民健身与全民健康深度融合发展，“推动构建人类命运共同体”发展目标的实现。  相似文献   

Validity and reliability of a low-cost dynamometer to assess maximal isometric strength of upper limb     

Natalia Romero-Franco  Juan C Fernández-Domínguez  Juan A Montaño-Munuera  Javier Romero-Franco  Pedro Jiménez-Reyes 《Journal of sports sciences》2019,37(15):1787-1793

Muscle imbalance and deficit are key parameters for guiding rehabilitation and sports sessions and avoiding injuries. However, the high cost and non-portable nature of most instruments employed for muscle strength assessment frequently hamper an affordable evaluation in field conditions. This study evaluated the validity and reliability of a low-cost digital dynamometer to assess the maximal isometric strength of upper limb muscles. Fourteen physically active volunteers performed the main movements of the upper limb at maximal isometric strength: flexion-extension, internal-external rotation and abduction-adduction of the shoulder; and flexion-extension of both elbow and wrist. Validity was examined by comparing the strength values from the low-cost digital dynamometer and those measured by an isokinetic dynamometer, assumed as the gold standard. The correlation between both devices was perfect (r > 0.913), while Bland-Altman plots showed absolute agreement between both devices, the maximum range of the values of bias was ?0.99–1.00 N in wrist extension. Inter-tester and intra-tester reliability were excellent for all movements (ICC ≥ 0.855). The low-cost digital dynamometer showed strong validity and excellent reliability in assessing maximal isometric strength during the main movements of the upper limb. Professionals may use it for an affordable isometric muscle strength assessment in field situations.  相似文献   

Effects of periodic carbohydrate ingestion on endurance and cognitive performances during a 40-km cycling time-trial under normobaric hypoxia in well-trained triathletes     

Yi-Hung Liao  Toby Mündel  Yan-Ting Yang  Chen-Chan Wei  Shiow-Chwen Tsai 《Journal of sports sciences》2019,37(16):1805-1815

The purpose of this study was to examine CHO ingestion on a cognitive task using a field-simulated time-trial (TT) under hypoxia in well-trained triathletes. Ten male triathletes (age: 22.1 ± 1.1 years; VO₂max: 59.4 ± 1.4 ml/kg/min) participated in this double-blind/crossover/counter-balanced design study. Participants completed 3 TT trials: 1) normoxic placebo (NPLA; FiO₂ = 20.9%), 2) hypoxic placebo (HPLA; FiO₂ = 16.3%), and 3) hypoxic CHO (HCHO; 6% CHO provided as 2 ml/kg/15 min; FiO₂ = 16.3%). During the TT, physiological responses (SpO₂, HR, RPE, and blood glucose/lactate), cognitive performance, and cerebral haemodynamics were measured. Hypoxia reduced TT performance by ~3.5–4% (p < 0.05), but CHO did not affect TT performance under hypoxia. For the cognitive task, CHO slightly preserved exercise-induced cognitive reaction speed but did not affect response accuracy during hypoxic exercise. However, CHO did not preserve the decreased Hb-Diff (cerebral blood flow, CBF) and increased HHb in the prefrontal lobe (p < 0.05) during hypoxic exercise, and CHO failed to preserve hypoxia-suppressed prefrontal CBF and tissue oxygen saturation. In conclusion, the present study demonstrates that CHO is effective in sustaining reaction speed for a cognitive task but not promoting TT performance during hypoxic exercise, which would be important for strategy-/decision-making when athletes compete at moderate high-altitude.  相似文献   

Online visibility of software-related web sites: The case of biomedical text mining tools     

Gael Pérez-Rodríguez  Martín Pérez-Pérez  Florentino Fdez-Riverola  Anália Lourenço 《Information processing & management》2019,56(3):565-583

  相似文献   

“三个转型”综合改革：新时代世界一流体育大学发展的历史选择     

曹卫东 《北京体育大学学报》2019,42(1):17-22

摘要：新时代是我国发展新的历史方位，体育强国、教育强国、健康中国三大战略为世界一流体育大学提出了新的更高要求。为此，北京体育大学提出了“三个转型”综合改革，以推进世界一流体育大学建设和高水平竞技体育后备人才培养基地建设，为国家培养勇担新时代体育事业发展重任的优秀人才。为实现上述目标，应在深刻认识“三个转型”改革提出的背景基础上，深入理解“三个转型”的内涵与目标，全面推进“三个转型”综合改革，为新时代体育、教育事业贡献北京体育大学的力量。研究背景包括：1）新时代是“三个转型”的历史坐标，2）强国战略是“三个转型”的现实依据，3）创新模式是“三个转型”的客观需要；“三个转型”分别是：1）全面推进从传统经验型体育大学向现代科技型体育大学转型，2）从以夏季项目为主的体育大学向夏季冬季项目全面发展的体育大学转型，3）从本土化体育大学向国际化体育大学转型，其目的是实现两大办学目标：1）把北京体育大学建成中国高水平竞技体育后备人才培养基地，2）把北京体育大学建设成为世界一流体育大学；为了实现“三个转型”转型及其目标，必须准确把握“办大学与建基地、文化传承与科技创新、立足中国与放眼世界”三个维度及其核心关键问题。  相似文献   

Physiological responses in different intensities of resistance exercise – Critical load and the effects of aging process     

Vivian Maria Arakelian  Cássia da Luz Goulart  Renata Gonçalves Mendes  Nuno Manoel de Sousa  Renata Trimer  Solange Guizilini 《Journal of sports sciences》2019,37(12):1420-1428

Aim was to identify critical load (CL) in young and elderly apparently healthy male cohorts. To contrast the metabolic, cardiovascular and perceptual responses on CL according to age. We evaluated 12 young (23 ± 3 years) and 10 elderly (70 ± 2 years) apparently healthy active males, who underwent: (1) 1 repetition maximum (1RM) test on a 45° Leg Press; (2) on different days, three high-intensity resistance exercise constant load tests (60%, 75% and 90% 1RM) until fatigue (Tlim). Absolute values of both the CL asymptote and curvature constant (kg) were significantly lower in elderly subjects (P < 0.05). In contrast, elderly subjects demonstrated a significantly higher number of repetitions at CL when compared with young subjects (P < 0.05). As expected, oxygen uptake (VO₂) and heart rate (HR) during maximal aerobic exercise testing were significantly reduced in older subjects. However, percent-predicted aerobic capacity were higher in older subjects (P < 0.05). In addition, blood lactate ([La^?]) corrected to Tlim and rating of perceived exertion values were greater in younger subjects at all intensities (P < 0.05). These findings, despite reduced force production in older subjects, endurance-related parameters are well preserved according to age-adjusted percent-predicted values in apparently healthy males.  相似文献