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

Yasina Somani, Sarah-Anne Hanik, Amanda Malandruccalo, Shane R. Freeman, Nic Caruana, M Badrov, Anthony Baross, Ian L Swaine, Kevin Milne, Cheri McGowan

Research output: Contribution to conference typesAbstractResearchpeer-review

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.
Original languageEnglish
Pages1
Publication statusPublished - 22 Oct 2014
EventCanadian Society for Exercise Physiology - St John’s, Canada, St John’s, Canada
Duration: 22 Oct 201425 Oct 2014

Conference

ConferenceCanadian Society for Exercise Physiology
CountryCanada
CitySt John’s
Period22/10/1425/10/14

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Blood Pressure
Pressure
Hand
Isometric Contraction
Immersion
Baths
Hypertension
Water

Cite this

Somani, Y., Hanik, S-A., Malandruccalo, A., Freeman, S. R., Caruana, N., Badrov, M., ... 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. 1. Abstract from Canadian Society for Exercise Physiology, St John’s, Canada.
Somani, Yasina ; Hanik, Sarah-Anne ; Malandruccalo, Amanda ; Freeman, Shane R. ; Caruana, Nic ; Badrov, M ; Baross, Anthony ; Swaine, Ian L ; Milne, Kevin ; McGowan, Cheri. / 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. Abstract from Canadian Society for Exercise Physiology, St John’s, Canada.
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title = "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",
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.",
author = "Yasina Somani and Sarah-Anne Hanik and Amanda Malandruccalo and Freeman, {Shane R.} and Nic Caruana and M Badrov and Anthony Baross and Swaine, {Ian L} and Kevin Milne and Cheri McGowan",
year = "2014",
month = "10",
day = "22",
language = "English",
pages = "1",
note = "Canadian Society for Exercise Physiology ; Conference date: 22-10-2014 Through 25-10-2014",

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Somani, Y, Hanik, S-A, Malandruccalo, A, Freeman, SR, Caruana, N, Badrov, M, Baross, A, Swaine, IL, Milne, K & 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' Canadian Society for Exercise Physiology, St John’s, Canada, 22/10/14 - 25/10/14, pp. 1.

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, Yasina; Hanik, Sarah-Anne; Malandruccalo, Amanda ; Freeman, Shane R. ; Caruana, Nic ; Badrov, M; Baross, Anthony; Swaine, Ian L; Milne, Kevin; McGowan, Cheri.

2014. 1 Abstract from Canadian Society for Exercise Physiology, St John’s, Canada.

Research output: Contribution to conference typesAbstractResearchpeer-review

TY - CONF

T1 - 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

AU - Somani, Yasina

AU - Hanik, Sarah-Anne

AU - Malandruccalo, Amanda

AU - Freeman, Shane R.

AU - Caruana, Nic

AU - Badrov, M

AU - Baross, Anthony

AU - Swaine, Ian L

AU - Milne, Kevin

AU - McGowan, Cheri

PY - 2014/10/22

Y1 - 2014/10/22

N2 - 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.

AB - 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.

M3 - Abstract

SP - 1

ER -

Somani Y, Hanik S-A, Malandruccalo A, Freeman SR, Caruana N, Badrov M et al. 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. 2014. Abstract from Canadian Society for Exercise Physiology, St John’s, Canada.