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841.
The physical activity (PA) intention-behavior gap has prompted researchers to explore other explanatory factors such as affective mechanisms which might better explain PA engagement. Affectively-charged motivations (e.g., desire, dread) are thought to influence the pursuit or avoidance of future behavior. This study examined whether affectively-charged motivations for PA changed across the day and were differentially associated with PA intensity. Participants (N = 60) wore ActiGraph GT3X accelerometers and answered EMA (M = 134.7 prompts/person) about affectively-charged motivations for upcoming PA using a 0-to-100-point scale (dread-excitement) in the morning, pre-activity, at-random, and evening for 14 days. Affectively-charged motivations for PA were lower in the morning and at-random compared to pre-activity (p = .004) and evening (p < .001). On average, individuals who rated morning affectively-charged motivations for PA 10-points higher engaged in 28 additional min/week of moderate-to-vigorous PA (p = .048). These findings suggest that affectively-charged motivations occurring in the morning may have greater salience for PA.  相似文献   
842.
This article discusses what chronic pain is “about”, what the intentional object is of pain, and what is the intentional relation like? My approach is based on Maurice Merleau‐Ponty’s phenomenology, with an aim is to understand a two‐way relationship: how the sufferers bestow meaning on chronic pain, and how pain, on the other hand, signifies peoples’ life. In contrast to biomedical and cognitive‐behavioral theories, chronic pain is not only meaningful, but as an intentional emotion as well; it does not simply “happen” in the nervous system. I analyzed meanings assigned to pain through the narratives of three patients with chronic pain. Pain is described as creating a discontinuity in the patient’s Lebenswelt at the narrative level. When attempting to find meaning to their pain, patients point both to everyday life and biomedical referents. The structure of bestowing meaning is, metaphorically, like a necklace with everyday world and biomedical interpretations strung like beads, one after the other. The intentional object of pain, on the contrary, is constituted of the patients’ world in its wholeness. My results don’t confirm Drew Leder’s idea of disrupted intentionality, but underline directness as the basic relation of human experience also in case of pain and disease. Pain in itself is an e‐movere, an intense passionate movement, an intentional relation with and a bodily posture taken towards the world.  相似文献   
843.
ObjectivesHabit has been proposed as an explanation of why prior behavior is a good predictor of later behavior. This study examined whether habit mediates the relationship between prior and later physical activity (PA), within the framework of the attitude-social influences-efficacy (ASE) model and the theory of planned behavior (TPB).DesignA longitudinal design was used.MethodsA total of 1976 older adults completed questionnaires on ASE/TPB constructs and PA at baseline, intention at three months, habit at six months, and PA at twelve months.ResultsPath analyses showed that habit significantly mediates the relationship between prior and later PA, after ASE/TPB variables were taken into account.ConclusionsHabit is a partial solution to the question why prior PA is a good predictor of later PA. It is recommended to incorporate habit into the ASE/TPB model.  相似文献   
844.
Though the effect of action planning upon behavioural enactment is becoming well-established, adherence to planning interventions are modest. Motivations specific to action planning may predict planning behaviour. The primary purpose of the present study was to determine if theory of planned behaviour constructs operationalized for planning could predict change in planning behaviour. The secondary purpose was to determine if planning behaviour predicted changes in physical activity. Participants (n = 337, Mage = 31 ± 5) were adults with intentions to be more active who completed measures of affective and instrumental attitudes towards planning, subjective norms towards planning, perceived behavioural control over planning, intentions to plan, self-reported planning behaviour, intentions to be active and self-reported physical activity at baseline (T1) and after four weeks (T2). Affective attitudes towards planning (β = 0.10, p < .05), instrumental attitudes towards planning (β = 0.22; p < .01) subjective norms over planning (β = 0.12, p < .01) and perceived behavioural control over planning (β = 0.53, p < .01) predicted intentions to plan (adj. R2 = 0.66). Intentions to plan (β = 0.16, p < .05) and intentions to be active (β = −0.25, p < .05) predicted change in planning behaviour (R2change = 0.03). Planning behaviour (β = 0.27, p < .05) predicted change in physical activity (R2change = 0.07). Planning behaviour appears to have its own motivations distinct from those of physical activity. Future interventions should target planning behaviour along with its motivations and control beliefs to increase rates of planning. The theoretical underpinnings of the TPB are of value for understanding both planning behaviour and physical activity.  相似文献   
845.
846.
An induced-pain paradigm has been used in back-healthy people to understand risk factors for developing low back pain (LBP) during prolonged standing. We examined asymmetry of lumbopelvic movement timing during a clinical test of active hip abduction in back-healthy people who developed LBP symptoms during standing (Pain Developers; PDs) compared to back-healthy people who did not develop LBP symptoms during standing (Non Pain Developers, NPDs). Participants completed the hip abduction test while movement was recorded with a motion capture system. Difference in time between start of hip and lumbopelvic movement was calculated (startdiff). PDs moved the lumbopelvic region earlier during left hip abduction than right hip abduction. There was no difference between sides in NPDs. In PDs, the amount of asymmetry was related to average symptom intensity during standing. Asymmetric lumbopelvic movement patterns may be a risk factor for LBP development during prolonged standing.  相似文献   
847.
ObjectivesWearable actimetry devices are used increasingly in cohort and cross-sectional studies to assess physical activity (PA) behaviour objectively. Thus far, the medical relevance of distinct PA groups, as identified by using new methods of sensor data analysis, remains unclear. The objective of this research paper is to evaluate whether such PA groups differ in commonly accepted health risk parameters.MethodsPA sensor data and corresponding outcome data of the NHANES 2005–06 study were obtained. Data pre-processing included elimination of potential outliers, data splitting and the computation of PA parameters, including a novel regularity measure. PA groups were identified using the x-Means clustering algorithm, and groups were evaluated for differences in CRP, BMI and HDL.ResultsData sets of 7334 NHANES participants were analysed, and four distinct PA groups were identified. Statistically significant group differences were found for CRP and BMI (p < 0.001), but not for HDL (p = 0.67).ConclusionsPA groups derived from objective accelerometer mass data differ in exemplary health-related outcome parameters. The novel PA regularity measure is of particular interest and may become part of future PA assessments, especially when regarding low-intensity, short-lived PA events. Further research in pattern recognition methods and analytic algorithms for PA data from current multi-sensing devices is necessary.  相似文献   
848.
High- (HA) and low-arched athletes (LA) experience distinct injury patterns. These injuries are the result of the interaction of structure and biomechanics. A suggested mechanism of patellofemoral pain pertains to frontal plane knee moments which may be exaggerated in LA athletes. We hypothesize that LA athletes will exhibit greater peak knee abduction moments than high-arched athletes.MethodsTwenty healthy female recreational athletes (10 HA and 10 LA) performed five over-ground barefoot walking and five barefoot running trials at a self-selected velocity while three-dimensional kinematics and ground reaction forces were recorded. Peak knee abduction moments and time-to-peak knee abduction moments were calculated using Visual 3D.ResultsHigh-arched athletes had smaller peak knee abduction moments compared to low-arched athletes during walking (KAM1: p = 0.019; KAM2: p = 0.015) and running (p = 0.010). No differences were observed in time-to-peak knee abduction moment during walking (KAM1: p = 0.360; KAM2: p = 0.085) or running (p = 0.359).ConclusionsThese findings demonstrate that foot type is associated with altered frontal plane knee kinetics which may contribute to patellofemoral pain. Future research should address the efficacy of clinical interventions including orthotics and rehabilitation programs in these athletes.  相似文献   
849.
IntroductionStudies on emotional expression and its impact upon health have mainly focused on quantitative aspects of interactions rather than on their quality.ObjectiveThe present study aimed to examine the interpersonal quality of interactions in the social sharing of emotions (SSE) in people living with HIV/AIDS (PLWHA), and its impact on patients’ physical and psychological well-being.MethodOne hundred and one PLWHA answered a questionnaire (Likert scale items) which assessed the following: shame, guilt, perceived stigma, perceived physical health, perceived mental health, SSE and the interpersonal quality of SSE (IQSSE). The main hypotheses were compiled into a theoretical model which was tested by a series of structural equation modeling (SEM) analyses.ResultsThe final solution resulted into a well-fit model which showed that: shame predicted IQSSE, perceived stigma mediated the relationship between IQSSE and guilt, and perceived mental health mediated the relationship between IQSSE and perceived physical health.ConclusionThese results corroborate previous findings which demonstrate that IQSSE is independent from quantitative aspects of SSE and that the way the SSE takes place is crucial to the benefits it induces.  相似文献   
850.
IntroductionChanges within the teaching profession have been blamed for the high levels of stress reported by teachers. In recent decades, Italian schools have been characterised by continuous change, as a result of profound transitions that have affected political, social and economic development.ObjectiveThis paper investigated the relationship between occupational stress, job satisfaction and physical health in Italian teachers. Specifically, our aim is to study the role of job satisfaction as a possible mediation role between work stressors and its effects on teachers’ physical health (physical symptoms). In addition, we were interested in studying the direct effects of work stressors on the hypothetical outcomes (physical symptoms).MethodData were collected via a questionnaire from a sample of 565 teachers working in different upper secondary schools in Italy. The booklet filled by the teachers consisted of 32 items that measure perceived occupational difficulties, job satisfaction and physical symptoms.ResultsThe results showed that workload, perception of work environment, teachers’ perceptions of senior management and attitude towards change are specific perceived occupational difficulties of the Italian teachers involved in our research. In particular, workload and attitude towards change have significant direct effects on physical symptoms, and indirect effects on physical symptoms through job satisfaction. Also, job satisfaction decreases physical symptoms.ConclusionThe results suggest important implications for stress prevention in teachers. In fact, the level of stress and its consequences can be reduced and prevented through an accurate identification of its sources, with a positive effect on individual and organisational health.  相似文献   
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