The Experts below are selected from a list of 16608 Experts worldwide ranked by ideXlab platform
Ian L Swaine - One of the best experts on this subject based on the ideXlab platform.
-
acute response to a 2 minute Isometric Exercise test predicts the blood pressure lowering efficacy of Isometric resistance training in young adults
American Journal of Hypertension, 2018Co-Authors: Yasina B Somani, Ian L Swaine, Cheri L Mcgowan, Anthony W Baross, Robert D Brook, Kevin MilneAbstract:This work aimed to explore whether different forms of a simple Isometric Exercise test could be used to predict the blood pressure (BP)-lowering efficacy of different types of Isometric resistance training (IRT) in healthy young adults. In light of the emphasis on primary prevention of hypertension, identifying those with normal BP who will respond to IRT is important. Also, heightened BP reactivity increases hypertension risk, and as IRT reduces BP reactivity in patients with hypertension, it warrants further investigation in a healthy population. METHODS Forty-six young men and women (24 ± 5 years; 116 ± 10/ 68 ± 8 mm Hg) were recruited from 2 study sites: Windsor, Canada (n = 26; 13 women), and Northampton, United Kingdom (n = 20; 10 women). Resting BP and BP reactivity to an Isometric Exercise test were assessed prior to and following 10 weeks of thrice weekly IRT. Canadian participants trained on a handgrip dynamometer (Isometric handgrip, IHG), while participants in the UK trained on an Isometric leg extension dynamometer (ILE). RESULTS Men and women enrolled in both interventions demonstrated significant reductions in systolic BP (P < 0.001) and pulse pressure (P < 0.05). Additionally, test-induced systolic BP changes to IHG and ILE tests were associated with IHG and ILE training-induced reductions in systolic BP after 10 weeks of training, respectively (r = 0.58 and r = 0.77; for IHG and ILE; P < 0.05). CONCLUSIONS The acute BP response to an Isometric Exercise test appears to be a viable tool to identify individuals who may respond to traditional IRT prescription.
-
evidence for the role of Isometric Exercise training in reducing blood pressure potential mechanisms and future directions
Sports Medicine, 2014Co-Authors: Philip J Millar, Cheri L Mcgowan, Veronique Cornelissen, Claudio Gil Soares De Araujo, Ian L SwaineAbstract:Hypertension, or the chronic elevation in resting arterial blood pressure (BP), is a significant risk factor for cardiovascular disease and estimated to affect ~1 billion adults worldwide. The goals of treatment are to lower BP through lifestyle modifications (smoking cessation, weight loss, Exercise training, healthy eating and reduced sodium intake), and if not solely effective, the addition of antihypertensive medications. In particular, increased physical Exercise and decreased sedentarism are important strategies in the prevention and management of hypertension. Current guidelines recommend both aerobic and dynamic resistance Exercise training modalities to reduce BP. Mounting prospective evidence suggests that Isometric Exercise training in normotensive and hypertensive (medicated and non-medicated) cohorts of young and old participants may produce similar, if not greater, reductions in BP, with meta-analyses reporting mean reductions of between 10 and 13 mmHg systolic, and 6 and 8 mmHg diastolic. Isometric Exercise training protocols typically consist of four sets of 2-min handgrip or leg contractions sustained at 20–50 % of maximal voluntary contraction, with each set separated by a rest period of 1–4 min. Training is usually completed three to five times per week for 4–10 weeks. Although the mechanisms responsible for these adaptations remain to be fully clarified, improvements in conduit and resistance vessel endothelium-dependent dilation, oxidative stress, and autonomic regulation of heart rate and BP have been reported. The clinical significance of Isometric Exercise training, as a time-efficient and effective training modality to reduce BP, warrants further study. This evidence-based review aims to summarize the current state of knowledge regarding the effects of Isometric Exercise training on resting BP.
-
reductions in resting blood pressure after 4 weeks of Isometric Exercise training
European Journal of Applied Physiology, 2010Co-Authors: Gavin Devereux, J Wiles, Ian L SwaineAbstract:There is some evidence to suggest Isometric training can reduce resting blood pressure in a shorter period than the typical 8 weeks, reported most commonly. The purpose of the present study was to explore whether 4 weeks of bilateral-leg Isometric training can reduce resting blood pressure, and whether these changes are associated with altered cardiac output or total peripheral resistance. Thirteen participants volunteered for a 4-week crossover training study, involving three sessions per week (each session involving 4 × 2 min bilateral-leg Isometric Exercise). The training intensity used (95% peak HR) was equivalent to 24% MVC. In addition to blood pressure, resting heart rate, cardiac output, stroke volume, and total peripheral resistance were measured. Results demonstrated that bilateral-leg Isometric Exercise training for 4 weeks caused significant reductions in systolic, diastolic, and mean arterial pressure. Changes were −4.9 ± 5.8, −2.8 ± 3.2, and −2.7 ± 2.4 mmHg, respectively. No differences were observed in the other resting measures. In conclusion, this study has shown that it is possible to induce reductions in arterial blood pressure after 4 weeks of bilateral-leg Isometric Exercise.
-
effect of Isometric Exercise on resting blood pressure a meta analysis
Journal of Human Hypertension, 2010Co-Authors: Andrew Owen, J Wiles, Ian L SwaineAbstract:Dynamic physical Exercise (walking, swimming, and so on) is an important component of lifestyle changes to reduce blood pressure; however, many individuals are unwilling or unable to adopt this lifestyle change. Isometric Exercise has not traditionally been recommended as an alternative to dynamic Exercise and has not been well studied. A meta-analysis of controlled trials of Isometric Exercise on resting blood pressure was therefore undertaken. Five trials were identified including a total of 122 subjects. Isometric Exercise for <1 h per week reduced systolic blood pressure by 10.4 mm Hg and diastolic blood pressure by 6.7 mm Hg. These changes are similar to those achieved with a single pharmacological agent. These results suggest that Isometric Exercise may be of value as part of lifestyle advice in maintaining a desirable blood pressure.
-
the effects of Isometric Exercise training on resting blood pressure and orthostatic tolerance in humans
Experimental Physiology, 2002Co-Authors: Reuben Howden, Timothy J Lightfoot, Stephen Brown, Ian L SwaineAbstract:Isometric Exercise training has been shown to reduce resting blood pressure, but the effect that this might have on orthostatic tolerance is poorly understood. Changes in orthostatic tolerance may also be dependent on whether the upper or lower limbs of the body are trained using Isometric Exercise. Twenty-seven subjects were allocated to either a training or control group. A training group first undertook 5 weeks of Isometric Exercise training of the legs, and after an 8 week intervening period, a second training group containing six subjects from the initial training group, undertook 5 weeks of Isometric arm-training. The control group were asked to continue their normal daily activities throughout the 18 weeks of the study. In all subjects orthostatic tolerance, assessed using lower body negative pressure (LBNP), and resting blood pressure were measured before and after each of the 5 week training or control periods. Estimated lean leg volume was determined before and after leg-training. During all LBNP tests, heart rate and blood pressure were recorded each minute, and the time taken to reach the highest heart rate was derived (time to peak HR). Resting systolic blood pressure (mean +/- S.D.), when measured during the last week of training, was significantly reduced after both leg (-10 +/- 8.7 mmHg) and arm (-12.4 +/- 9.3 mmHg; P 0.05). There was a small but significant increase in estimated lean leg volume after leg-training (0.1 +/- 0.1 1; P < 0.05). These results suggest that lower resting blood pressure is probably not responsible for the increased orthostatic tolerance after Isometric Exercise training of the legs. Rather, it is possible that the training altered some other aspect of cardiovascular control during orthostatic stress that was apparent in the changes in heart rate. Leg-training was accompanied by increases in estimated lean leg volume. The effects of Isometric training on orthostatic tolerance appear to be specific to limbs that are directly involved in LBNP testing.
Leopold Schmetterer - One of the best experts on this subject based on the ideXlab platform.
-
choroidal hemodynamic changes during Isometric Exercise in patients with inactive central serous chorioretinopathy
Investigative Ophthalmology & Visual Science, 2005Co-Authors: Michael Tittl, Noemi Maar, Elzbieta Polska, Gu Nther Weigert, Michael Stur, Leopold SchmettererAbstract:Purpose Imaging studies suggest that the choroidal vasculature may be altered in central serous chorioretinopathy. Little is known, however, about the regulation of ocular blood flow in patients with central serous chorioretinopathy (CSC). The hypothesis for the present study was that choroidal blood flow changes during an increase in ocular perfusion pressure induced by Isometric Exercise may be altered in CSC. Methods An observer-masked, two-cohort study was performed in 14 nonsmoking patients with chronic-relapsing but inactive CSC and in 14 healthy nonsmoking volunteers. Both groups were matched for age and sex. Subfoveal choroidal blood flow (CBF) was assessed with laser Doppler flowmetry, and ocular perfusion pressure (OPP) was calculated from mean arterial pressure (MAP) and intraocular pressure (IOP). Changes of CBF during Isometric Exercise over a period of 6 minutes were measured. Results Whereas the increase of MAP, the pulse rate, and the OPP were comparable between the two study groups, subfoveal CBF increased significantly more in the group of patients with CSC (P Conclusions The data indicate an abnormal subfoveal CBF regulation in patients with relapsing CSC compared with age-matched, nonsmoking, healthy volunteers during Isometric Exercise.
-
role of endothelin 1 in choroidal blood flow regulation during Isometric Exercise in healthy humans
Investigative Ophthalmology & Visual Science, 2003Co-Authors: Gabriele Fuchsjagermayrl, Elzbieta Polska, Alexandra Luksch, Magdalena Malec, Michael Wolzt, Leopold SchmettererAbstract:Purpose There is evidence that the choroid has some autoregulatory capacity in response to changes in ocular perfusion pressure (OPP). The mediators of this response are hitherto unidentified. The hypothesis for the current study was that endothelin (ET)-1 and/or angiotensin (ANF)-II may be involved in choroidal vasoconstriction during an increase in OPP. Methods To test this hypothesis a randomized, double-masked, placebo-controlled, three way crossover study was performed in 12 healthy male volunteers. Subjects received on different study days intravenous infusions of the specific ET(A) receptor antagonist BQ-123, the angiotensin converting enzyme inhibitor enalapril or placebo. During these infusion periods subjects were asked to squat for 6 minutes. Choroidal blood flow was measured using a confocal laser Doppler flowmeter and ocular perfusion pressure (OPP) was calculated from mean arterial pressure and intraocular pressure. Results BQ-123 and enalapril had no effect on basal blood pressure, pulse rate, intraocular pressure, or choroidal blood flow. During Isometric Exercise, a pronounced increase in mean arterial pressure paralleled by an increase in OPP was observed. Although choroidal blood flow slightly increased during squatting, the increase was much less pronounced than the increase in OPP, indicating some regulatory potential of the choroid. Enalapril did not alter the choroidal pressure-flow relationship during Isometric Exercise, but BQ-123 induced a significant leftward shift of the pressure-flow curve (P Conclusions The present data indicate that ET-1, but not ANG II, plays a role in choroidal blood flow regulation during Isometric Exercise in healthy humans. Hence, impaired choroidal autoregulation in patients with ocular vascular diseases may arise from an altered endothelin system. Further studies in such patients are warranted to verify this hypothesis.
Sissel Nygaard - One of the best experts on this subject based on the ideXlab platform.
-
Autonomic cardiovascular control changes in recent heart transplant recipients lead to physiological limitations in response to orthostatic challenge and Isometric Exercise
European Journal of Applied Physiology, 2019Co-Authors: Sissel Nygaard, Erik Thaulow, Anders Haugom Christensen, Katrine Rolid, Kari Nytrøen, Lars Gullestad, Arnt Fiane, Gaute Døhlen, Kristin Godang, J. Philip SaulAbstract:Purpose Heart transplantation causes denervation of the donor heart, but the consequences for cardiovascular homeostasis remain to be fully understood. The present study investigated cardiovascular autonomic control at supine rest, during orthostatic challenge and during Isometric Exercise in heart transplant recipients (HTxR). Methods A total of 50 HTxRs were investigated 7–12 weeks after transplant surgery and compared with 50 healthy control subjects. Continuous, noninvasive recordings of cardiovascular variables were carried out at supine rest, during 15 min of 60° head-up tilt and during 1 min of 30% of maximal voluntary handgrip. Plasma and urine catecholamines were assayed, and symptoms were charted. Results At supine rest, heart rate, blood pressures and total peripheral resistance were higher, and stroke volume and end diastolic volume were lower in the HTxR group. During tilt, heart rate, blood pressures and total peripheral resistance increased less, and stroke volume and end diastolic volume decreased less. During handgrip, heart rate and cardiac output increased less, and stroke volume and end diastolic volume decreased less. Orthostatic symptoms were similar across the groups, but the HTxRs complained more of pale and cold hands. Conclusion HTxRs are characterized by elevated blood pressures and total peripheral resistance at supine rest as well as attenuated blood pressures and total peripheral resistance responses during orthostatic challenge, possibly caused by low-pressure cardiopulmonary baroreceptor denervation. In addition, HTxRs show attenuated cardiac output response during Isometric Exercise due to efferent sympathetic denervation. These physiological limitations might have negative functional consequences.
-
autonomic cardiovascular control changes in recent heart transplant recipients lead to physiological limitations in response to orthostatic challenge and Isometric Exercise
European Journal of Applied Physiology, 2019Co-Authors: Sissel Nygaard, Anders Haugom Christensen, Katrine Rolid, Kari Nytrøen, Lars Gullestad, Arnt FianeAbstract:Heart transplantation causes denervation of the donor heart, but the consequences for cardiovascular homeostasis remain to be fully understood. The present study investigated cardiovascular autonomic control at supine rest, during orthostatic challenge and during Isometric Exercise in heart transplant recipients (HTxR). A total of 50 HTxRs were investigated 7–12 weeks after transplant surgery and compared with 50 healthy control subjects. Continuous, noninvasive recordings of cardiovascular variables were carried out at supine rest, during 15 min of 60° head-up tilt and during 1 min of 30% of maximal voluntary handgrip. Plasma and urine catecholamines were assayed, and symptoms were charted. At supine rest, heart rate, blood pressures and total peripheral resistance were higher, and stroke volume and end diastolic volume were lower in the HTxR group. During tilt, heart rate, blood pressures and total peripheral resistance increased less, and stroke volume and end diastolic volume decreased less. During handgrip, heart rate and cardiac output increased less, and stroke volume and end diastolic volume decreased less. Orthostatic symptoms were similar across the groups, but the HTxRs complained more of pale and cold hands. HTxRs are characterized by elevated blood pressures and total peripheral resistance at supine rest as well as attenuated blood pressures and total peripheral resistance responses during orthostatic challenge, possibly caused by low-pressure cardiopulmonary baroreceptor denervation. In addition, HTxRs show attenuated cardiac output response during Isometric Exercise due to efferent sympathetic denervation. These physiological limitations might have negative functional consequences.
J Wiles - One of the best experts on this subject based on the ideXlab platform.
-
neurohumoral and ambulatory haemodynamic adaptations following Isometric Exercise training in unmedicated hypertensive patients
Journal of Hypertension, 2019Co-Authors: Katrina Taylor, J Wiles, Da Coleman, Paul Leeson, Rajan Sharma, Jamie M OdriscollAbstract:Objective: Hypertension remains the leading modifiable risk factor for cardiovascular disease (CVD). Isometric Exercise training (IET) has been shown to be a useful non-pharmacological intervention for reducing resting blood pressure (BP). This study aimed to measure alterations in office BP, ambulatory BP, cardiac autonomic modulation and inflammatory and vascular biomarkers following a programme of IET in unmedicated hypertensive patients. Methods: Twenty-four unmedicated stage 1 hypertensive patients (age 43.8±7.3 years; height, 178.1±7 cm; weight 89.7±12.8 kg) were randomly assigned in a cross-over study design, to 4-weeks of home based IET and control period, separated by a 3-week washout period. Office and Ambulatory BP, cardiac autonomic modulation, and inflammatory and vascular biomarkers were recorded pre and post IET and control periods. Results: Clinic and 24-hour ambulatory BP significantly reduced following IET by 12.4/6.2 mmHg and 11.8/5.6 mmHg in systolic/diastolic BP, respectively (p<0.001 for both), compared to the control. The BP adaptations were associated with a significant (p=0.018) reduction in the average real variability of 24-hour ambulatory BP following IET, compared to control. Cardiac autonomic modulation improved by 11% (p<0.001), baroreceptor reflex sensitivity improved by 47% (p<0.001), and interleukin-6 and asymmetric dimethylarginine reduced by 10% (p=0.022) and 19% (p=0.023), respectively, which differed significantly to the control period. Conclusion: This is the first evidence of durable BP reduction and wider CVD risk benefits of IET in a relevant patient population. Our findings support the role of IET as a safe and viable therapeutic and preventative intervention in the treatment of HTN.
-
home based Isometric Exercise training induced reductions resting blood pressure
European Journal of Applied Physiology, 2017Co-Authors: J Wiles, Natalie Goldring, Da ColemanAbstract:Isometric Exercise training (IET) reduces resting blood pressure (BP). Most previous protocols impose Exercise barriers which undermine its effectiveness as a potential physical therapy for altering BP. An inexpensive, home-based programme would promote IET as a valuable tool in the fight against hypertension. The aims of this study were: (a) to investigate whether home-based wall squat training could successfully reduce resting BP and (b) to explore the physiological variables that might mediate a change in resting BP. Twenty-eight healthy normotensive males were randomly assigned to a control and a 4 week home-based IET intervention using a crossover design with a 4 week ‘washout’ period in-between. Wall squat training was completed 3 × weekly over 4 weeks with 48 h between sessions. Each session comprised 4 × 2 min bouts of wall squat Exercise performed at a participant-specific knee joint angle relative to a target HR of 95% HRpeak, with 2 min rest between bouts. Resting heart rate, BP, cardiac output, total peripheral resistance, and stroke volume were taken at baseline and post each condition. Resting BP (systolic −4 ± 5, diastolic −3 ± 3 and mean arterial −3 ± 3 mmHg), cardiac output (−0.54 ± 0.66 L min−1) and heart rate (−5 ± 7 beats min−1) were all reduced following IET, with no change in total peripheral resistance or stroke volume compared to the control. These findings suggest that the wall squat provides an effective method for reducing resting BP in the home resulting primarily from a reduction in resting heart rate.
-
reductions in resting blood pressure after 4 weeks of Isometric Exercise training
European Journal of Applied Physiology, 2010Co-Authors: Gavin Devereux, J Wiles, Ian L SwaineAbstract:There is some evidence to suggest Isometric training can reduce resting blood pressure in a shorter period than the typical 8 weeks, reported most commonly. The purpose of the present study was to explore whether 4 weeks of bilateral-leg Isometric training can reduce resting blood pressure, and whether these changes are associated with altered cardiac output or total peripheral resistance. Thirteen participants volunteered for a 4-week crossover training study, involving three sessions per week (each session involving 4 × 2 min bilateral-leg Isometric Exercise). The training intensity used (95% peak HR) was equivalent to 24% MVC. In addition to blood pressure, resting heart rate, cardiac output, stroke volume, and total peripheral resistance were measured. Results demonstrated that bilateral-leg Isometric Exercise training for 4 weeks caused significant reductions in systolic, diastolic, and mean arterial pressure. Changes were −4.9 ± 5.8, −2.8 ± 3.2, and −2.7 ± 2.4 mmHg, respectively. No differences were observed in the other resting measures. In conclusion, this study has shown that it is possible to induce reductions in arterial blood pressure after 4 weeks of bilateral-leg Isometric Exercise.
-
effect of Isometric Exercise on resting blood pressure a meta analysis
Journal of Human Hypertension, 2010Co-Authors: Andrew Owen, J Wiles, Ian L SwaineAbstract:Dynamic physical Exercise (walking, swimming, and so on) is an important component of lifestyle changes to reduce blood pressure; however, many individuals are unwilling or unable to adopt this lifestyle change. Isometric Exercise has not traditionally been recommended as an alternative to dynamic Exercise and has not been well studied. A meta-analysis of controlled trials of Isometric Exercise on resting blood pressure was therefore undertaken. Five trials were identified including a total of 122 subjects. Isometric Exercise for <1 h per week reduced systolic blood pressure by 10.4 mm Hg and diastolic blood pressure by 6.7 mm Hg. These changes are similar to those achieved with a single pharmacological agent. These results suggest that Isometric Exercise may be of value as part of lifestyle advice in maintaining a desirable blood pressure.
Kelli F. Koltyn - One of the best experts on this subject based on the ideXlab platform.
-
mechanisms of Exercise induced hypoalgesia
The Journal of Pain, 2014Co-Authors: Kelli F. Koltyn, Angelique G Brellenthin, Dane B Cook, Nalini Sehgal, Cecilia J HillardAbstract:Abstract The purpose of this study was to examine opioid and endocannabinoid mechanisms of Exercise-induced hypoalgesia (EIH). Fifty-eight men and women (mean age = 21 years) completed 3 sessions. During the first session, participants were familiarized with the temporal summation of heat pain and pressure pain protocols. In the Exercise sessions, following double-blind administration of either an opioid antagonist (50 mg naltrexone) or placebo, participants rated the intensity of heat pulses and indicated their pressure pain thresholds and pressure pain ratings before and after 3 minutes of submaximal Isometric Exercise. Blood was drawn before and after Exercise. Results indicated that circulating concentrations of 2 endocannabinoids, N -arachidonylethanolamine and 2-arachidonoylglycerol, as well as related lipids oleoylethanolamide, palmitoylethanolamide, N -docosahexaenoylethanolamine, and 2-oleoylglycerol, increased significantly ( P P P P P > .05). A significant association was found between EIH and docosahexaenoylethanolamine. These results suggest involvement of a nonopioid mechanism in EIH following Isometric Exercise. Perspective Currently, the mechanisms responsible for EIH are unknown. This study provides support for a potential endocannabinoid mechanism of EIH following Isometric Exercise.
-
temporal summation of heat pain modulated by Isometric Exercise
European Journal of Pain, 2013Co-Authors: Kelli F. Koltyn, Matthew T Knauf, Angelique G BrellenthinAbstract:Background Little is known about the effects of Isometric Exercise on temporal summation of heat pain. Thus, the purposes of study 1 and study 2 were to examine the influence of exhaustive and non-exhaustive Isometric Exercise on temporal summation of heat pain in men and women. Methods Forty-four men and 44 women (mean age = 20 years) completed an informed consent document and a packet of questionnaires. Ten heat pulses were applied to the thenar eminence of the dominant hand using a standardized temporal summation protocol. Participants rated the intensity of the heat pulses using a 0–100 pain rating scale before and following Isometric Exercise consisting of squeezing a hand dynamometer at 40% of maximal voluntary contraction (MVC) to exhaustion (exhaustive Exercise, study 1) and at 25% MVC for 3 min (non-exhaustive Exercise, study 2). Muscle pain and perceived exertion were rated every 30 s during Exercise using validated rating scales. The data were analysed with repeated measures analysis of variance. Results The results indicated there were no sex differences (p > 0.05) in time to exhaustion (study 1), muscle pain or perceived exertion (studies 1 and 2). There was a significant reduction (p < 0.05) in temporal summation ratings following Isometric Exercise for men and women in both study 1 and study 2. Conclusion It is concluded that exhaustive and non-exhaustive Isometric Exercise significantly reduced temporal summation of heat pain in men and women.
-
examination of the dose response relationship between pain perception and blood pressure elevations induced by Isometric Exercise in men and women
Biological Psychology, 2010Co-Authors: Masataka Umeda, Lauren W Newcomb, Laura D Ellingson, Kelli F. KoltynAbstract:The purpose of this study was to examine Exercise-induced hypoalgesia (EIH) in men and women, and whether different magnitudes of BP elevations induced by Isometric Exercise systematically influenced pain perception. Twenty-five men and 25 women performed Isometric Exercise at 25% MVC for 1-min, 3-min, and 5-min while BP and pain perception were assessed. Results indicated that BP was significantly elevated (p<0.05) by Isometric Exercise in a dose-response manner. Pain thresholds were found to be elevated while pain ratings were lower (p<0.05) immediately following Isometric Exercise but not in a dose-response manner. It was concluded that Isometric Exercise produced EIH in men and women, and there was not a dose-response relationship between BP and EIH.
-
contralateral attenuation of pain after short duration submaximal Isometric Exercise
The Journal of Pain, 2007Co-Authors: Kelli F. Koltyn, Masataka UmedaAbstract:Abstract Only a small amount of research has been conducted examining whether Exercise-induced hypoalgesia (EIH) occurs after Isometric Exercise. Thus, the purpose of this investigation was to examine whether EIH occurred in women after short-duration submaximal Isometric Exercise and whether the responses were restricted to the Exercised hand (ipsilateral) or also occurred in the nonExercised (contralateral) hand. Fourteen healthy women (mean age=19.5 years) completed 2 sets of submaximal (40% to 50% of max) Isometric Exercise consisting of squeezing a dynamometer for 2 minutes with the dominant hand. A pressure stimulus was applied to the forefinger on the dominant and nondominant hands for 2 minutes before and after Isometric Exercise. Participants pressed a button when the stimulus became painful, indicating pain threshold (PT), and also rated the intensity of the stimulus every 15 seconds, using a pain rating scale (PR). Results indicated that there were significant trials effects ( P P > .05). PTs were found to be elevated, whereas PRs were reduced for both hands after Isometric Exercise. It is concluded that submaximal Isometric Exercise performed for 2 minutes resulted in ipsilateral and contralateral hypoalgesic responses. Perspective The findings from the present study demonstrated that short-duration nonexhaustive Isometric Exercise was associated with hypoalgesic responses in the Exercised and nonExercised hands. It appears that short-duration submaximal Isometric Exercise resulted in generalized (ie, ipsilateral and contralateral) pain-inhibitory responses in healthy young women.
-
Effect of Isometric Exercise on pain perception and blood pressure in men and women.
Medicine and Science in Sports and Exercise, 2001Co-Authors: Kelli F. Koltyn, Malani R. Trine, Aaron J. Stegner, David A. TobarAbstract:KOLTYN, K. F., M. R. TRINE, A. J. STEGNER, and D. A. TOBAR. Effect of Isometric Exercise on pain perception and blood pressure in men and women. Med. Sci. Sports Exerc., Vol. 33, No. 2, pp. 282–290, 2001. Purpose:To examine the influence of Isometric handgrip Exercise (ISO EX) on pain perception and
