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Effects of short-term exercise training on tissue Doppler indices of left ventricular diastolic function in overweight and obese individuals.
J Sports Sci. 2014; 32(5):487-99.JS

Abstract

Although exercise training is unable to improve obesity-associated decreases in left ventricular (LV) diastolic function, as assessed using chamber function measurements, the effects on LV diastolic myocardial function, as assessed using tissue Doppler imaging (TDI), are uncertain. In 32 overweight (n = 11) or obese (n = 21), sedentary or recreationally active men and women (30-57 years), we assessed the effects of 6 weeks of exercise training either preceded (n = 16) or followed (n = 16) by a 6-week control period on TDI indices of LV diastolic function (e', e'/a' and E/e') (echocardiography). Diastolic function at baseline was comparable to that noted in overweight and obese participants from a community sample (n = 245), and 56% (n = 18) had e' values below the lower 95% CI of a lean and healthy cohort (n = 60) of the community sample. Exercise training increased peak oxygen consumption (27.4 ± 4.9 to 29.4 ± 5.8 mL · kg(-1) · min(-1), P = 0.0001), but had no effect on body mass index (P = 0.99). No changes in TDI indices of diastolic function were observed after exercise training in all the participants (e': P = 0.74, a': P = 0.98, e'/a': P = 0.85, E/e': P = 0.26), participants with abnormal e' values (n = 18)(e': P = 0.99, a': P = 0.96, e'/a': P = 0.91, E/e': P = 0.97) or obese participants (n = 21)(e': P = 0.67, a': P = 1.00, e'/a': P = 0.78, E/e': P = 0.11). In conclusion, exercise training, despite increasing cardiorespiratory fitness, is unable to improve obesity-associated decreases in LV diastolic myocardial function.

Authors+Show Affiliations

a University of the Witwatersrand , Johannesburg 2193 , South Africa.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24050712

Citation

Millen, Aletta, et al. "Effects of Short-term Exercise Training On Tissue Doppler Indices of Left Ventricular Diastolic Function in Overweight and Obese Individuals." Journal of Sports Sciences, vol. 32, no. 5, 2014, pp. 487-99.
Millen A, Norton G, Avidon I, et al. Effects of short-term exercise training on tissue Doppler indices of left ventricular diastolic function in overweight and obese individuals. J Sports Sci. 2014;32(5):487-99.
Millen, A., Norton, G., Avidon, I., & Woodiwiss, A. (2014). Effects of short-term exercise training on tissue Doppler indices of left ventricular diastolic function in overweight and obese individuals. Journal of Sports Sciences, 32(5), 487-99. https://doi.org/10.1080/02640414.2013.832356
Millen A, et al. Effects of Short-term Exercise Training On Tissue Doppler Indices of Left Ventricular Diastolic Function in Overweight and Obese Individuals. J Sports Sci. 2014;32(5):487-99. PubMed PMID: 24050712.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of short-term exercise training on tissue Doppler indices of left ventricular diastolic function in overweight and obese individuals. AU - Millen,Aletta, AU - Norton,Gavin, AU - Avidon,Ingrid, AU - Woodiwiss,Angela, Y1 - 2013/09/20/ PY - 2013/9/21/entrez PY - 2013/9/21/pubmed PY - 2014/10/21/medline SP - 487 EP - 99 JF - Journal of sports sciences JO - J Sports Sci VL - 32 IS - 5 N2 - Although exercise training is unable to improve obesity-associated decreases in left ventricular (LV) diastolic function, as assessed using chamber function measurements, the effects on LV diastolic myocardial function, as assessed using tissue Doppler imaging (TDI), are uncertain. In 32 overweight (n = 11) or obese (n = 21), sedentary or recreationally active men and women (30-57 years), we assessed the effects of 6 weeks of exercise training either preceded (n = 16) or followed (n = 16) by a 6-week control period on TDI indices of LV diastolic function (e', e'/a' and E/e') (echocardiography). Diastolic function at baseline was comparable to that noted in overweight and obese participants from a community sample (n = 245), and 56% (n = 18) had e' values below the lower 95% CI of a lean and healthy cohort (n = 60) of the community sample. Exercise training increased peak oxygen consumption (27.4 ± 4.9 to 29.4 ± 5.8 mL · kg(-1) · min(-1), P = 0.0001), but had no effect on body mass index (P = 0.99). No changes in TDI indices of diastolic function were observed after exercise training in all the participants (e': P = 0.74, a': P = 0.98, e'/a': P = 0.85, E/e': P = 0.26), participants with abnormal e' values (n = 18)(e': P = 0.99, a': P = 0.96, e'/a': P = 0.91, E/e': P = 0.97) or obese participants (n = 21)(e': P = 0.67, a': P = 1.00, e'/a': P = 0.78, E/e': P = 0.11). In conclusion, exercise training, despite increasing cardiorespiratory fitness, is unable to improve obesity-associated decreases in LV diastolic myocardial function. SN - 1466-447X UR - https://www.unboundmedicine.com/medline/citation/24050712/Effects_of_short_term_exercise_training_on_tissue_Doppler_indices_of_left_ventricular_diastolic_function_in_overweight_and_obese_individuals_ L2 - https://www.tandfonline.com/doi/full/10.1080/02640414.2013.832356 DB - PRIME DP - Unbound Medicine ER -