Left and right ventricular longitudinal strain-volume/area relationships in elite athletes
MetadataDangos cofnod eitem llawn
We propose a novel ultrasound approach with the primary aim of establishing the temporal relationship of structure and function in athletes of varying sporting demographics. 92 male athletes were studied [Group IA, (low static–low dynamic) (n = 20); Group IC, (low static–high dynamic) (n = 25); Group IIIA, (high static–low dynamic) (n = 21); Group IIIC, (high static–high dynamic) (n = 26)]. Conventional echocardiography of both the left ventricles (LV) and right ventricles (RV) was undertaken. An assessment of simultaneous longitudinal strain and LV volume/RV area was provided. Data was presented as derived strain for % end diastolic volume/area. Athletes in group IC and IIIC had larger LV end diastolic volumes compared to athletes in groups IA and IIIA (50 ± 6 and 54 ± 8 ml/(m2)1.5 versus 42 ± 7 and 43 ± 2 ml/(m2)1.5 respectively). Group IIIC also had significantly larger mean wall thickness (MWT) compared to all groups. Athletes from group IIIC required greater longitudinal strain for any given % volume which correlated to MWT (r = 0.4, p < 0.0001). Findings were similar in the RV with the exception that group IIIC athletes required lower strain for any given % area. There are physiological differences between athletes with the largest LV and RV in athletes from group IIIC. These athletes also have greater resting longitudinal contribution to volume change in the LV which, in part, is related to an increased wall thickness. A lower longitudinal contribution to area change in the RV is also apparent in these athletes.
The International Journal of Cardiovascular Imaging;
Oxborough, D., Heemels, A., Somauroo, J., McClean, G., Mistry, P., Lord, R., Utomi, V., Jones, N., Thijssen, D., Sharma, S., Osborne, R. et al (2016) 'Left and right ventricular longitudinal strain-volume/area relationships in elite athletes', The international Journal of Cardiovascular Imaging, 32(8), pp.1199-1211
Dynodwr Gwrthrych Digidol (DOI)https://doi.org/10.1007/s10554-016-0910-4
Article published open access in The International Journal of Cardiovascular Imaging available at https://doi.org/10.1007/s10554-016-0910-4
- Sport Research Groups 
Yn dangos eitemau sy’n perthyn drwy deitl, awdur, pwnc a chrynodeb.
Stimulus-specific functional remodeling of the left ventricle in endurance and resistance-trained men Dawkins, Tony; Curry, Bryony; Drane, Aimee L.; Lord, Rachel; Richards, Cory; Brown, Megan; Pugh, Christopher J. A.; Lodge, Freya; Yousef, Zaheer; Stembridge, Mike; Shave, Rob (American Physiological Society, 2020-09-01)Left ventricular (LV) structural remodeling following athletic training has been evidenced through training-specific changes in wall thickness and geometry. Whether the LV response to changes in hemodynamic load also adapts ...
Meah, Victoria L.; Backx, Karianne; Cockcroft, John R.; Shave, Rob; Stöhr, Eric J. (Wiley, 2019-09-04)Objective: To evaluate left ventricular (LV) mechanics in the second trimester of healthy pregnancy and to determine the influence of underpinning hemodynamics (heart rate (HR), preload and afterload) on LV mechanics ...
Protective effects of acute exercise prior to doxorubicin on cardiac function of breast cancer patients: A proof-of-concept RCT Kirkham, Amy; Shave, Rob; Bland, Kelcey; Bovard, Josh; Eves, Neil; Gelmon, Karen; Virani, Sean; Stöhr, Eric J.; Warburton, Darren; Campbell, Kristin (Elsevier, 2017-07-14)Background: Preclinical studies have reported that a single treadmill session performed 24 h prior to doxorubicin provides cardio-protection. We aimed to characterize the acute change in cardiac function following an initial ...