Topic
Intervention Duration
About: Intervention Duration is a research topic. Over the lifetime, 130 publications have been published within this topic receiving 3298 citations.
Papers published on a yearly basis
Papers
TL;DR: Pedometer-based walking programs result in a modest amount of weight loss, but longer programs lead to more weight loss than shorter programs.
Abstract: PURPOSE Cross-sectional studies show that individuals who walk more tend to be thinner than those who walk less. This does not mean, however, that the associa- tion between higher step counts and lower weight is causal or that encouraging sedentary individuals to increase step counts helps them lose weight. METHODS In this meta-analysis, we searched 6 electronic databases and contacted pedometer experts to identify pedometer-based walking studies without a dietary intervention that reported weight change as an outcome. We included randomized controlled trials and prospective cohort studies published after January 1, 1995, in either English or Japanese, with 5 or more adult participants and at least 1 cohort enrolled in a pedometer-based walking intervention lasting at least 4 weeks. RESULTS Nine studies met the study inclusion criteria. Cohort sample size ranged from 15 to 106, for a total of 307 participants, 73% of whom were women and 27% of whom were men. The duration of the intervention ranged from 4 weeks to 1 year, with a median duration of 16 weeks. The pooled estimate of mean weight change from baseline using a fi xed-effects model and combining data from all 9 cohorts was -1.27 kg (95% confi dence interval, -1.85 to -0.70 kg). Longer intervention duration was associated with greater weight change. On average, participants lost 0.05 kg per week during the interventions. CONCLUSION Pedometer-based walking programs result in a modest amount of weight loss. Longer programs lead to more weight loss than shorter programs.
454 citations
TL;DR: There is evidence for the use supervised aerobic exercise, undertaken three times weekly at moderate intensity for a minimum of nine weeks in the treatment of depression, and further research on the manipulation of program variables is warranted.
414 citations
Fred Hutchinson Cancer Research Center1, Kaiser Permanente2, University of California, Irvine3, University of Washington4, Stony Brook University5, Howard University6, University of California, Davis7, University of Medicine and Dentistry of New Jersey8, Northwestern University9, University of Alabama at Birmingham10, University of Tennessee Health Science Center11, University of California, Los Angeles12
TL;DR: A low-fat dietary pattern may reduce the incidence of ovarian cancer among postmenopausal women through reduction in fat intake and increase consumption of vegetables, fruits, and grains.
Abstract: Results Ovarian cancer risk was lower in the intervention than in the comparison group ( P = .03). Although the overall ovarian cancer hazard ratio (HR) was not statistically significantly less than 1.0, the hazard ratio decreased with increasing intervention duration ( P trend = .01). For the first 4 years, the risk for ovarian cancer was similar in the intervention and control groups (0.52 cases per 1000 person-years in the intervention group versus 0.45 per 1000 person-years in the comparison group; HR = 1.16, 95% confidence interval [CI] = 0.73 to 1.84); over the next 4.1 years, the risk was lower in the intervention group (0.38 cases per 1000 person-years in the intervention group versus 0.64 per 1000 person-years in the comparison group; HR = 0.60, 95% CI = 0.38 to 0.96). Risk of cancer of the endometrium did not differ between the groups ( P = .18). The estimated risk of total invasive cancer was slightly lower in the intervention group than in the control group (HR = 0.95, 95% CI = 0.89 to 1.01; P = .10). Conclusions A low-fat dietary pattern may reduce the incidence of ovarian cancer among postmenopausal women.
222 citations
TL;DR: For adults with overweight or obesity, referral to this open-group behavioural weight-loss programme for at least 12 weeks is more effective than brief advice and self-help materials and, although it costs more, modelling suggests that the 52-week programme is cost-effective in the longer term.
200 citations
TL;DR: It is found that high-intensity interval training in children and adolescents is a time-effective method of improving cardiovascular disease biomarkers, but evidence regarding other health-related measures is more equivocal.
Abstract: Whilst there is increasing interest in the efficacy of high-intensity interval training in children and adolescents as a time-effective method of eliciting health benefits, there remains little consensus within the literature regarding the most effective means for delivering a high-intensity interval training intervention. Given the global health issues surrounding childhood obesity and associated health implications, the identification of effective intervention strategies is imperative. The aim of this review was to examine high-intensity interval training as a means of influencing key health parameters and to elucidate the most effective high-intensity interval training protocol. Studies were included if they: (1) studied healthy children and/or adolescents (aged 5–18 years); (2) prescribed an intervention that was deemed high intensity; and (3) reported health-related outcome measures. A total of 2092 studies were initially retrieved from four databases. Studies that were deemed to meet the criteria were downloaded in their entirety and independently assessed for relevance by two authors using the pre-determined criteria. From this, 13 studies were deemed suitable. This review found that high-intensity interval training in children and adolescents is a time-effective method of improving cardiovascular disease biomarkers, but evidence regarding other health-related measures is more equivocal. Running-based sessions, at an intensity of >90% heart rate maximum/100–130% maximal aerobic velocity, two to three times a week and with a minimum intervention duration of 7 weeks, elicit the greatest improvements in participant health. While high-intensity interval training improves cardiovascular disease biomarkers, and the evidence supports the effectiveness of running-based sessions, as outlined above, further recommendations as to optimal exercise duration and rest intervals remain ambiguous owing to the paucity of literature and the methodological limitations of studies presently available.
195 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 22 |
| 2020 | 16 |
| 2019 | 9 |
| 2018 | 10 |
| 2017 | 15 |
| 2016 | 15 |