Abstract:
OBJECTIVE:Prior attempts to measure psychological responses to exercise are potentially limited by a failure to account for participants' expectations, the absence of a valid exercise placebo, and demand characteristics. The purpose of this study was to explore the main and interactive effects of a manipulation designed to increase expectations about the psychological benefits of an acute bout of active, light-intensity (treatment), and passive (placebo) cycling on mood and cognition. Demand characteristics were attenuated during recruitment, informed consent, and interactions with test administrators by communicating to participants that the study purpose was to assess the effects of active and passive cycling on respiration, heart rate, and muscle activation. METHODS:A repeated-measures, randomized, placebo-controlled design (n = 60) was used with cycling (active, passive) and information (informed, not informed) as between-subjects factors. State anxiety, feelings of energy, and working memory (percent accuracy and reaction time for correct responses) were measured at baseline (time 1), immediately after cycling (time 2) and 20 minutes after cycling (time 3). RESULTS:Most participants did not guess the purpose of the study (~92%) or expect a reduction in state anxiety (85%) or an increase in energy (80%) or cognitive performance (~93%). Mood and cognitive performance were not improved by active or passive cycling (all p values ≥ .12). CONCLUSIONS:The methods used here to disguise the experimental hypotheses provide a potential framework for reducing demand characteristics and placebo responses in future investigations of psychological responses to exercise.
journal_name
Psychosom Medjournal_title
Psychosomatic medicineauthors
Lindheimer JB,OʼConnor PJ,McCully KK,Dishman RKdoi
10.1097/PSY.0000000000000381subject
Has Abstractpub_date
2017-02-01 00:00:00pages
243-253issue
2eissn
0033-3174issn
1534-7796journal_volume
79pub_type
杂志文章abstract:OBJECTIVE:To examine the association between dietary folate, riboflavin, vitamin B-6, and vitamin B-12 and depressive symptoms in a group of adolescents. METHODS:This cross-sectional study, conducted in all public junior high schools in Naha City and Nago City, Okinawa, Japan, included 3,067 boys and 3,450 girls aged ...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/PSY.0b013e3181f02f15
更新日期:2010-10-01 00:00:00
abstract::The relationship between change in mode of housing and corresponding blood pressure (BP) change was investigated among 568 male prisoners as an analogue to animal studies which have shown that crowding elevates BP. The transfer from single occupancy cells to multiple occupancy dormitories was associated with a statist...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/00006842-198104000-00001
更新日期:1981-04-01 00:00:00
abstract:OBJECTIVE:To examine whether socioeconomic status (SES) (education, occupation, income), is associated both cross sectionally and prospectively with circulating concentrations of a) two correlates of oxidative damage, F(2)-isoprostanes (F(2)-IsoPs) and gamma-glutamyltransferase (GGT); and b) antioxidant nutrients (asco...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/PSY.0b013e31819e7526
更新日期:2009-06-01 00:00:00
abstract:OBJECTIVES:Research suggests that individuals with posttraumatic stress disorder (PTSD) are more likely to develop medical conditions and other stress-related psychiatric disorders. Given these findings and others suggesting that PTSD victims may have altered neuroendocrine and immune systems, the hypothesis that Vietn...
journal_title:Psychosomatic medicine
pub_type: 临床试验,杂志文章
doi:10.1097/00006842-199905000-00019
更新日期:1999-05-01 00:00:00
abstract:OBJECTIVES:Recent academic debate has centered on whether functional somatic syndromes should be defined as separate entities or as one syndrome. The aim of this study was to investigate whether there may be significant differences in the etiology or precipitating factors associated with two common functional syndromes...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/01.psy.0000221384.07521.05
更新日期:2006-05-01 00:00:00
abstract:OBJECTIVE:Mortality on medical intensive care units (ICU) is approximately 25%. It is associated with age, severity of illness, and comorbidities. Preexisting depression is a risk factor for worse outcome in many diseases. The impact of depression on outcome of ICU patients has not been investigated. We assessed a poss...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/PSY.0000000000000137
更新日期:2015-02-01 00:00:00
abstract::A sample consisting of 54 patients and 31 dentists of Chinese, Anglo-American, and Scandinavian ethnic origin were interviewed about their ways of coping with pain. Instruments designed to assess pain coping were constructed from the descriptions elicited by the interviews. The interview data thus served as the basis ...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/00006842-199003000-00005
更新日期:1990-03-01 00:00:00
abstract::To study serotonergic involvement in the development of gastric lesions following activity wheel stress, three groups of rats (gastric lesions, no gastric lesions, and home--cage controls) were killed following exposure to the experimental procedures. The brains were dissected into eight specific areas and subjected t...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/00006842-198305000-00004
更新日期:1983-05-01 00:00:00
abstract:OBJECTIVE:This report evaluates the effects of a depression relapse prevention program on disability outcomes among patients treated for depression at high risk for relapse. MATERIALS AND METHODS:Primary care patients initiating antidepressant treatment for depression were assessed 6 to 8 weeks after the initial presc...
journal_title:Psychosomatic medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/01.psy.0000097336.95046.0c
更新日期:2003-11-01 00:00:00
abstract:OBJECTIVE:The main aims of this study were a) to investigate the relationship between lightheadedness and cerebral blood flow velocity (CBFv) during hyperventilation-induced hypocapnia, and b) to investigate whether and why the relationship between lightheadedness and CBFv may change after several episodes of this sens...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/PSY.0b013e3181e68e94
更新日期:2010-09-01 00:00:00
abstract:OBJECTIVE:It has been suggested that adverse socioeconomic conditions "get under the skin" by eliciting a stress response that can trigger periodontal inflammation. We aimed to a) estimate the extent to which socioeconomic position (SEP) is associated with periodontal disease (PD) and proinflammatory oral immunity, and...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/PSY.0000000000000774
更新日期:2020-02-01 00:00:00
abstract:OBJECTIVE:To examine retinal vascular caliber, an indicator of early microvascular disease and depression in patients with Type 2 diabetes. METHODS:We conducted a clinic-based study, comparing participants with Type 2 diabetes with major depression (n = 43), without depression (n = 49), and healthy controls without di...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/PSY.0b013e3181da90f4
更新日期:2010-07-01 00:00:00
abstract:OBJECTIVE:To investigate the association of a range of temporally prior physical conditions with the subsequent first onset of suicidal ideation, plans, and attempts in large, general population, cross-national sample. The associations between physical conditions and suicidal behavior remain unclear due to sparse data ...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/PSY.0b013e3181e3333d
更新日期:2010-09-01 00:00:00
abstract::Impatience, one major Type A characteristic, alters the performance of tasks requiring anticipation and accurate responding. Beat-by-beat changes in heart rate are also known to occur during anticipatory attention. In college- and middle-aged adult samples, impatience is related to these beat-by-beat heart rate change...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/00006842-198411000-00003
更新日期:1984-11-01 00:00:00
abstract:OBJECTIVES:The two objectives are to test the hypothesis that women in a profession with low decision latitude will have greater catecholamine excretion and higher blood pressure than women in a profession with greater decision latitude, and to assess the influence of ethnicity on the occupational comparison. METHODS:...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/01.psy.0000222356.71315.8e
更新日期:2006-07-01 00:00:00
abstract:OBJECTIVE:To examine the potential moderating role of DRD2 polymorphism (rs1800497) in the association between stressful life events and depressive symptoms among young adults. Although stressful life events, such as divorce, unemployment, and serious illness in the family, are generally associated with negative health...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/psy.0b013e31806bf365
更新日期:2007-06-01 00:00:00
abstract:OBJECTIVE:This study evaluated the ability of mental stress testing to discriminate between women with and without CHD, and among women with different disease manifestations, taking into account history of hypertension and beta-blocker use. METHODS:Analyses were based on data from a community-based case-control study ...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/00006842-200111000-00010
更新日期:2001-11-01 00:00:00
abstract:OBJECTIVE:Several somatic illnesses are associated with psychiatric comorbidity. Evidence is provided that availability of the essential amino acid tryptophan, which is the precursor of serotonin, may cause this phenomenon. METHODS:We performed a database search to find relevant articles published between 1966 and 200...
journal_title:Psychosomatic medicine
pub_type: 杂志文章,评审
doi:10.1097/01.psy.0000078188.74020.cc
更新日期:2003-07-01 00:00:00
abstract:OBJECTIVE:A previous study suggested that insulin metabolic variables play a role in the progression of atherosclerosis in Watanabe heritable hyperlipidemic (WHHL) rabbits. The present study sought to determine: 1) if young, individually caged WHHLs are insulin-resistant relative to New Zealand white (NZW) rabbits and ...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/01.psy.0000155674.95497.ab
更新日期:2005-03-01 00:00:00
abstract:OBJECTIVE:This systematic and quantitative review evaluates the literature on associations between depressed mood and flow-mediated dilation (FMD), a measure of endothelial function, in adults. METHODS:Published English-language articles (through December 2010) were identified from literature searches, assessed for da...
journal_title:Psychosomatic medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1097/PSY.0b013e31821db79a
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVE:A model for the development of anxiety disorders (panic disorder with or without agoraphobia) is needed. Patients with an implantable cardioverter/defibrillator (ICD) are exposed to repeated electric shocks. If the theory of anxiety development by aversive classic conditioning processes is valid, these repeat...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/00006842-200103000-00006
更新日期:2001-03-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to describe the sequence of psychosocial events and infections preceding the onset of chronic fatigue syndrome (CFS). This information was related to the temporal development of crucial symptoms in relation to the onset of, namely, fatigue, sadness, irritability, pain, and feelin...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/00006842-199905000-00009
更新日期:1999-05-01 00:00:00
abstract:OBJECTIVES:Our objectives were to test whether Conscientiousness, the other 4 domains of the Five-Factor Model, and their facets predicted mortality in older, frail individuals. METHODS:Controlling for demographic and health measures, we used Cox regression to test whether the NEO Five-Factor Inventory (NEO-FFI) Neuro...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/01.psy.0000181272.58103.18
更新日期:2005-09-01 00:00:00
abstract::This review updates the literature on cultural differences in response to laboratory-induced pain. Thirteen studies were located, and there was great diversity among the investigations with regard to racial and ethnic groups studied, methods of pain induction, and experimental outcome. There appear to be no racial/eth...
journal_title:Psychosomatic medicine
pub_type: 杂志文章,评审
doi:10.1097/00006842-199009000-00007
更新日期:1990-09-01 00:00:00
abstract::Fifty-eight normal adolescent Swedish boys, aged 16, provided two sets of blood samples for plasma testosterone assays as well as data on a number of personality inventories and rating scales assessing aggression, inpulsiveness, lack of frustration tolerance, extraversion, and anxiety. Physical variables such as puber...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/00006842-198003000-00003
更新日期:1980-03-01 00:00:00
abstract:OBJECTIVE:Several studies have shown that psychiatric disorders can be associated with venous thromboembolism (VTE) risk, that is, pulmonary embolism (PE) and/or deep vein thrombosis (DVT). In this study, we provide a systematic review and meta-analyses of the studies addressing this issue. METHODS:All studies address...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/PSY.0000000000000863
更新日期:2020-11-01 00:00:00
abstract::Thirty adults willing their body at death to medical science were compared on a number of personality variables with 30 nondonors, both groups equated for age, education, and socioeconomic status. Donors are internally directed, masters of their fate; nondonors rely on chance or luck to explain outcome. A more defin...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/00006842-197507000-00004
更新日期:1975-07-01 00:00:00
abstract:OBJECTIVE:Posttraumatic stress disorder (PTSD) has been associated with an increased cardiovascular risk, though the pathophysiologic mechanisms involved are elusive. A hypercoagulable state before occurrence of coronary thrombosis contributes to atherosclerosis development. We investigated whether PTSD would be associ...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/01.psy.0000221229.43272.9d
更新日期:2006-07-01 00:00:00
abstract:OBJECTIVE:The aim of the present study was to identify the association between mental disorders and awareness and treatment of hypertension in a large representative community sample. METHODS:The analysis was based on data from 4149 respondents, ages 18 to 65 years, from the German National Health Interview and Examin...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/01.psy.0000204883.77284.6b
更新日期:2006-03-01 00:00:00
abstract:OBJECTIVES:Rumination has been linked to self-reported sleep quality. However, whether rumination is related to an objective sleep parameter has not been tested. This study examined whether rumination predicts sleep onset latency (SOL) on the night after an acute psychosocial stressor. We hypothesized that those who ru...
journal_title:Psychosomatic medicine
pub_type: 杂志文章
doi:10.1097/PSY.0b013e3181ae58e8
更新日期:2009-09-01 00:00:00