The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.
Physical activity and reduced occurrence of non–insulin-dependent diabetes mellitus
Open accessAbstract
BACKGROUND: Physical activity is recommended by physicians to patients with non-insulin-dependent diabetes mellitus (NIDDM), because it increases sensitivity to insulin. Whether physical activity is effective in preventing this disease is not known. METHODS: We used questionnaires to examine patterns of physical activity and other personal characteristics in relation to the subsequent development of NIDDM in 5990 male alumni of the University of Pennsylvania. The disease developed in a total of 202 men during 98,524 man-years of follow-up from 1962 to 1976. RESULTS: Leisure-time physical activity, expressed in kilocalories expended per week in walking, stair climbing, and sports, was inversely related to the development of NIDDM: The incidence rates declined as energy expenditure increased from less than 500 kcal to 3500 kcal. For each 500-kcal increment in energy expenditure, the age-adjusted risk of NIDDM was reduced by 6 percent (relative risk, 0.94; 95 percent confidence interval, 0.90 to 0.98). This association remained the same when the data were adjusted for obesity, hypertension, and a parental history of diabetes. The association was weaker when we considered weight gain between the time of college attendance and 1962 (relative risk, 0.95; 95 percent confidence interval, 0.90 to 1.00). The protective effect of physical activity was strongest in persons at highest risk for NIDDM, defined as those with a high body-mass index, a history of hypertension, or a parental history of diabetes. These factors, in addition to weight gain since college, were also independent predictors of the disease. CONCLUSIONS: Increased physical activity is effective in preventing NIDDM, and the protective benefit is especially pronounced in persons at the highest risk for the disease.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“Prospective cohort and cross-sectional observational studies that assessed PA with questionnaires showed that higher PA levels are associated with reduced risk for type 2 diabetes, regardless of method of activity assessment, ranges of activity categories, and statistical methods”
From Exercise and Type 2 Diabetes (2010) · cites this paper as [108]
Experimental — accuracy not yet measuredThe source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“Physical activity can delay the onset of T2DM or potentially prevent it through improvements in glycemic control (11, 12).”
From The effectiveness of digital health intervention on glycemic control and physical activity in patients with type 2 diabetes: a systematic review and meta-analysis (2025) · cites this paper as [11]
Experimental — accuracy not yet measuredIn the citing paper
“in men with a BMI of 25 or more, a history of hypertension, a positive parental history of diabetes, or any combination of these factors, the incidence of T2D declined by 41% from the lowest to the highest levels of energy expenditure (234)”
From Lack of Exercise Is a Major Cause of Chronic Diseases (2012) · cites this paper as [234]
In the citing paper
“There are prospective cohort studies that have shown that increased physical activity, independent of other risk factors, has a protective effect against the development of T2DM (Helmrich 1991;Manson 1992).”
From Diet, physical activity or both for prevention or delay of type 2 diabetes mellitus and its associated complications in people at increased risk of developing type 2 diabetes mellitus (2017) · cites this paper as Helmrich 1991
In the citing paper
“Interventional as well as observational studies have shown a reduction in the incidence of T2DM with reduced calorie intake and increased physical activity in people at risk of T2DM (Da Qing 1997;DPP 2002;Helmrich 1991;Smith 2016).”
From Diet, physical activity or both for prevention or delay of type 2 diabetes mellitus and its associated complications in people at increased risk of developing type 2 diabetes mellitus (2017) · cites this paper as Helmrich 1991
In the citing paper
“These epidemiological prospective studies demonstrated that various levels of regular physical activity once to several times a week were associated with a decreased incidence of the disease at long-term follow-up (14 years and five years respectively) (Helmrich 1991;Manson 1992).”
From Diet, physical activity or both for prevention or delay of type 2 diabetes mellitus and its associated complications in people at increased risk of developing type 2 diabetes mellitus (2017) · cites this paper as Helmrich 1991
In the citing paper
“Regular physical activity is associated with lower morbidity and mortality rates from cardiovascular disease [1-4], diabetes mellitus [5], cancer [6], and osteoporosis [7].”
From Internet-based physical activity interventions: a systematic review of the literature. (2007) · cites this paper as [5]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Regression Models and Life-Tables
Cox, D. R. (1972) · Journal of the Royal Statistical Society Series B: Statistical Methodology · doi:10.1111/j.2517-6161.1972.tb00899.x · Cited by 39,793
Chi-Square Tests with One Degree of Freedom; Extensions of the Mantel- Haenszel Procedure
Mantel, N. (1963) · Journal of the American Statistical Association · doi:10.1080/01621459.1963.10500879 · Cited by 2,899
Physical Activity, All-Cause Mortality, and Longevity of College Alumni
Paffenbarger, R. S., Hyde, R., Wing, A. L., & Hsieh, C.-C. (1986) · New England Journal of Medicine · doi:10.1056/nejm198603063141003 · Cited by 2,742
Self-citationChi-Square Tests with One Degree of Freedom; Extensions of the Mantel- Haenszel Procedure
Mantel, N. (1963) · Journal of the American Statistical Association · doi:10.2307/2282717 · Cited by 1,144
PASSMORE, R., & Durnin, J. V. G. A. (1955) · Physiological Reviews · doi:10.1152/physrev.1955.35.4.801 · Cited by 714
Enhanced Peripheral and Splanchnic Insulin Sensitivity in NIDDM Men After Single Bout of Exercise
Devlin, J. T., Hirshman, M., Horton, E. D., & Horton, E. S. (1987) · Diabetes · doi:10.2337/diab.36.4.434 · Cited by 342
Relationships between exercise or physical activity and other health behaviors.
Blair, S. N., Jacobs, D. R., & Powell, K. E. (1985) · PubMed · Cited by 296
The effect of physical training on insulin production in obesity
Björntorp, P. A., de Jounge, K., Sjöström, L., & Sullivan, L. (1970) · Metabolism · doi:10.1016/0026-0495(70)90020-x · Cited by 281
New concepts in the pathogenesis and treatment of noninsulin-dependent diabetes mellitus
DeFronzo, R. A., Ferrannini, E., & Koivisto, V. A. (1983) · The American Journal of Medicine · doi:10.1016/0002-9343(83)90654-x · Cited by 263
Effects of Prior High-Intensity Exercise on Glucose Metabolism in Normal and Insulin-resistant Men
Devlin, J. T., & Horton, E. S. (1985) · Diabetes · doi:10.2337/diab.34.10.973 · Cited by 215
Research works printed but not linked: 4
- West KM. Epidemiology of diabetes and its vascular complications. New York: Elsevier, 1978.
- Ainsworth, Med Sci Sports Exerc
- Blair, 1985, Public Health Rep, 100, 172
- Krotkiewski, 1983, Scand J Rehabil Med Suppl, 9, 55
Cited by
Sorted by citations
Prediction of coronary heart disease using risk factor categories
Wilson, P. W. F., D’Agostino, R. B., Levy, D., Belanger, A. M., Silbershatz, H., & Kannel, W. B. (1998) · Circulation · doi:10.1161/01.cir.97.18.1837 · Cited by 9,581
Health benefits of physical activity: the evidence
Warburton, D. E. R. (2006) · Canadian Medical Association Journal · doi:10.1503/cmaj.051351 · Cited by 8,007
Stamler, J., Vaccaro, O., Neaton, J. D., Wentworth, D., & The Multiple Risk Factor Intervention Trial Research Group (1993) · Diabetes Care · doi:10.2337/diacare.16.2.434 · Cited by 4,063
Diet, lifestyle, and the risk of type 2 diabetes mellitus in women.
Hu, F. B., Manson, J. E., Stampfer, M. J., Colditz, G., Liu, S., Solomon, C. G., & Willett, W. C. (2001) · New England Journal of Medicine · doi:10.1056/nejmoa010492 · Cited by 2,901
Metadata
- Authors
- Helmrich, S. P., Ragland, D. R., Leung, R. W., & Paffenbarger, R. S.
- Affiliations
- University of California, Berkeley (US)
- Stanford Medicine (US)
- ORCID
- Ragland, David R.
- Venue
- New England Journal of Medicine
- Publisher
- Massachusetts Medical Society
- Published
- 1991-07-18
- Volume
- 325
- Issue
- 3
- Pages
- 147-152
- ISSN
- 0028-4793 (ISSN-L)
- 1533-4406
- OpenAlex
- W2317654055
- Cited by
- 1,634
- References
- 34
- Citations by year
- 2026: 9 · 2025: 11 · 2024: 19 · 2023: 17 · 2022: 26 · 2021: 28 · 2020: 29 · 2019: 26 · 2018: 45 · 2017: 49 · 2016: 62 · 2015: 47 · 2014: 71 · 2013: 55 · 2012: 59
- FWCI
- 19.19
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- New England Journal of Medicine (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health (5r01hl034174-11)
- National Heart, Lung, and Blood Institute (T32-HL07365, T32HL007365, R01 HL34174)
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Physical Activity and Health
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
- Keywords
- physical activity, type 2 diabetes, diabetes prevention, energy expenditure, leisure-time physical activity, walking, stair climbing, sport, weight gain, body mass index, hypertension, risk factors
- MeSH terms
- Adult, Aged, Diabetes Mellitus, Type 2, Energy Metabolism, Physical Exertion, Humans, Hypertension, Leisure Activities, Male, Middle Aged, Obesity, Prospective Studies, Surveys and Questionnaires, Risk, Body Mass Index
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review