Isometric handgrip (IHG) training-induced reductions in resting blood pressure: Reactivity to a 2-minute handgrip task identifies responders and non-responders in young normotensive individuals

Somani, Y., Hanik, S.-A., Malandruccalo, A., Freeman, S. R., Caruana, N., Badrov, M., Baross, A., Swaine, I. L., Milne, K. and McGowan, C. (2014) Isometric handgrip (IHG) training-induced reductions in resting blood pressure: Reactivity to a 2-minute handgrip task identifies responders and non-responders in young normotensive individuals. Other presented to: Canadian Society for Exercise Physiology, St John’s, Canada, 2014-10-22 - 2014-10-25.

Somani_Yasina_etal_FJ_2014_Isometric_handgrip_IHG_training_induced_reductions_in_resting_blood_pressure_Re ... (94kB)

Item Type:	Conference or Workshop Item (Other)
Abstract:	In people with hypertension, systolic blood pressure (SBP) reactivity to an isometric handgrip task (IHGT), but not a cold pressure task (CPT), is predictive of IHG training-induced reductions in resting SBP. To investigate whether these findings could be extended to include young normotensives, resting BP and BP reactivity to an IHGT (2-minute sustained contraction at 30% maximal voluntary contraction, MVC) and a CPT (2-minute hand immersion in a cold water bath) were measured prior to and following 10 weeks of IHG training (4, 2-minute IHG contractions at 30% MVC, using alternating hands, interspersed with 1-minute rest periods, 3X/week) in 7 normotensive individuals (3 females, 4 males; age=25 ± 5.7 years). BP reactivity was derived by calculating the difference between peak stress BP and mean baseline resting BP. Significant training-induced reductions in resting SBP (p<0.001) were strongly correlated with pre-training SBP reactivity to the IHGT (r=-0.8, p=0.03), but not the CPT (r= 0.2, p=0.6). These preliminary findings suggest that SBP reactivity to a short and simple handgrip task can be used as a predictive tool to identify who will respond best to IHG training. It might be possible to further explore how the IHG training stimulus could be optimized in non-responders, to ensure that they too, experience reductions in resting BP.
Creators:	Somani, Yasina, Hanik, Sarah-Anne, Malandruccalo, Amanda, Freeman, Shane R., Caruana, Nic, Badrov, M, Baross, Anthony, Swaine, Ian L, Milne, Kevin and McGowan, Cheri
Faculties, Divisions and Institutes:	Faculties > Faculty of Health & Society > Sports, Exercise & Life Sciences Research Centres > Centre for Physical Activity and Life Sciences
Date:	22 October 2014
Date Type:	Publication
Page Range:	p. 1
Journal or Publication Title:	Canadian Society for Exercise Physiology
Event Title:	Canadian Society for Exercise Physiology
Event Dates:	2014-10-22 - 2014-10-25
Place of Publication:	CAN
Event Location:	St John’s, Canada
Event Type:	Other
Language:	English
Status:	Published / Disseminated
Refereed:	Yes
Related URLs:	https://www.fasebj.org/doi/abs/10.1096/f... https://pure.northampton.ac.uk/en/public...
URI:	http://nectar.northampton.ac.uk/id/eprint/12970

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