Acute cardiac autonomic and haemodynamic responses to leg and arm isometric exercise

Swift, Harry T; O’Driscoll, Jamie M; Coleman, D. A.; Caux, Anthony De; Wiles, J.

doi:10.1007/s00421-022-04894-7

Cited by 5 publications

(10 citation statements)

References 66 publications

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“…Indeed, it has been suggested that a potential physiological stimulus for BP adaptation may be linked to post-exercise hypotension 34 . Our research group has previously shown that the wall squat IE has been associated with a greater post exercise hypotensive response than isometric handgrip 35 and results in a greater magnitude of BP reduction following training 24 . The reality of the situation is most likely reflected in the results of a recent real- world study conducted by Cohen et al 36 who compared the effects of 12-weeks of hand grip against wall squat IE and a control group in unmedicated hypertensive participants in a multi-centre trial in Columbia.…”

Section: Discussionmentioning

confidence: 93%

Feasibility study to assess the delivery of a novel isometric exercise intervention for people with high blood pressure in a healthcare setting

Wiles,

Santer,

Rees-Roberts

et al. 2024

Preprint

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BACKGROUND: Hypertension affects 1:4 adults and increases the risk of CV disease. Management aims to reduce blood pressure to a level that minimizes risk; up to 50% of people don't achieve blood pressure targets often due to insufficient treatment or poor adherence. Exercise has a role to play in the management of hypertension. The impact of isometric exercise on hypertension in healthcare settings is poorly understood. METHODS: Randomized controlled open-label multicentre feasibility study of isometric exercise compared to standard care in unmedicated hypertensives. Participants received an individualised isometric wall squat prescription and performed 4 x 2-minute bouts thrice weekly for 6-months. We assessed recruitment, deliverability, attrition, adherence, and variance in blood pressure change. RESULTS: 41 participants (56 +/- 15 years), 59% women, were randomized. Isometric exercise was found to be easily deliverable to all participants. At 6-months 34% withdrew, of those who completed isometric exercise 87% of their sessions were at the correct intensity. Variance in blood pressure change was 14.4 mmHg. The study was not powered to show a difference in blood pressure between groups, however blood pressure reductions were seen in the intervention group at all study time points compared to baseline. CONCLUSIONS: The results have allowed us to calculate a sample size (n=542) for a full randomised controlled trial. The results demonstrate good acceptability and adherence rates to the treatment protocol. Our results show a signal towards a consistent systolic blood pressure reduction in the isometric exercise group compared to baseline. REGISTRATION:NCT04936022https://classic.clinicaltrials.gov/ct2/show/NCT04936022cond=isometric+exercise&draw=2&rank=7 Registry Identifier: ISRCTN:13472393

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Section: Discussionmentioning

confidence: 93%

Feasibility study to assess the delivery of a novel isometric exercise intervention for people with high blood pressure in a healthcare setting

Wiles,

Santer,

Rees-Roberts

et al. 2024

Preprint

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“…The consistency of these findings across different methodological approaches to arterial stiffness measures provides support for the application of peripheral AIx as a practical measure. However, adaptations following IET may also be intensity dependent, since Farah et al (2018) and Correia et al (2020) found no significant change in pulse wave velocity or AIx following isometric hand grip training, and isometric wall squat training has been shown to be a greater hemodynamic stress in comparison (Swift et al, 2022). Interestingly, with this study employing a wall squat IET protocol, and given that BP was measured at the index or middle finger and brachial artery, our findings must reflect some degree of systematic change in vascular resistance, rather than localized adaptations to the exercised muscle, as has been previously demonstrated through flow-mediated dilatation testing following handgrip IET (Correia et al, 2020).…”

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

The effect of isometric exercise training on arterial stiffness: A randomized crossover controlled study

Edwards

Jalaludeen

Beqiri

et al. 2023

Physiological Reports

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Isometric exercise training (IET) is an effective intervention for the management of resting blood pressure (BP). However, the effects of IET on arterial stiffness remain largely unknown. Eighteen unmedicated physically inactive participants were recruited. Participants were randomly allocated in a cross‐over design to 4 weeks of home‐based wall squat IET and control period, separated by a 3‐week washout period. Continuous beat‐to‐beat hemodynamics, including early and late systolic (sBP 1 and sBP 2, respectively) and diastolic blood pressure (dBP) were recorded for a period of 5 min and waveforms were extracted and analyzed to acquire the augmentation index (AIx) as a measure of arterial stiffness. sBP 1 (−7.7 ± 12.8 mmHg, p = 0.024), sBP 2 (−5.9 ± 9.9 mmHg, p = 0.042) and dBP (−4.4 ± 7.2 mmHg, p = 0.037) all significantly decreased following IET compared to the control period. Importantly, there was a significant reduction in AIx following IET (−6.6 ± 14.5%, p = 0.02) compared to the control period. There were also adjacent significant reductions in total peripheral resistance (−140.7 ± 65.8 dynes·cm‐5, p = 0.042) and pulse pressure (−3.8 ± 4.2, p = 0.003) compared to the control period. This study demonstrates an improvement in arterial stiffness following a short‐term IET intervention. These findings have important clinical implications regarding cardiovascular risk. Mechanistically, these results suggest that reductions in resting BP following IET are induced via favorable vascular adaptations, although the intricate details of such adaptations are not yet clear.

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“…The training effect of the experiment was tested by isokinetic muscle strength test and the center height after difficult take-off. 4,5 The experimental period was from November 2010 to January 2011, and the experimental period was three months. Upon application, the martial arts center agrees to assist the coaches of the women's martial arts team to carry out lower limb strength training for three months, twice a week for 13 weeks.…”

Section: Experimental Methodsmentioning

confidence: 99%

Consequences of Lower Limb Strength Training on Jump Performance in Athletes of Martial Arts

Liu

2023

Rev Bras Med Esporte

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Introduction: Chinese martial art has a wide and deep history, and its routine passes are a particular artistic presentation. In exhibitions, choreography with jumping is highly appreciated. Empirically, it is believed that additional strengthening of the lower limbs may promote better results in the performances, but there are no reports in the scientific literature about such a statement. Objective: Verify the consequences of lower limb strength training on jumping ability in martial arts athletes. Methods: 30 first and second tier athletes from the professional women’s team of the Wushu Sports Management Center and Sports Bureau were selected as volunteers for the experimental research. The experiment lasted for three months. The characteristics of the development and change of strength of each muscle group in the knee joint of the athletes’ lower limb during the experimental training were detailed, and the commonly used means of lower limb strength training were found. Results: In strength training, the best means found were skipping steps and rapidly changing direction. The correlation coefficient between jumping and strength was 0.75. Conclusion: After the experiment, the maximum torque and the average power of the lower limb knee muscle groups of the three experimental groups increased in different ranges, which shows that the strength quality of the knee joint of the athletes increased during the suggested training. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

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Acute cardiac autonomic and haemodynamic responses to leg and arm isometric exercise

Cited by 5 publications

References 66 publications

Feasibility study to assess the delivery of a novel isometric exercise intervention for people with high blood pressure in a healthcare setting

Feasibility study to assess the delivery of a novel isometric exercise intervention for people with high blood pressure in a healthcare setting

The effect of isometric exercise training on arterial stiffness: A randomized crossover controlled study

Consequences of Lower Limb Strength Training on Jump Performance in Athletes of Martial Arts

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