Acute and adaptive cardiovascular and metabolic effects of passive heat therapy or high‐intensity interval training in patients with severe lower‐limb osteoarthritis

Roxburgh, Brendon; Campbell, Holly A; Cotter, James D.; Reymann, Ulla; Williams, Michael J.A.; Gwynne‐Jones, David; Thomas, Kate N.

doi:10.14814/phy2.15699

Cited by 5 publications

(1 citation statement)

References 87 publications

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“…Specifically, post exercise antegrade shear rate is positively correlated with improvements in resting vascular function 19 . Furthermore, acute reductions in systolic and diastolic blood pressure, after hot water immersion and moderate‐intensity exercise, are also correlated with reductions in resting blood pressure 20 . Given the predictive value of these acute responses, it is important to investigate if longer durations of hot water immersion or using post exercise hot water immersion can synergize vascular responses.…”

Section: Introductionmentioning

confidence: 99%

Post exercise hot water immersion and hot water immersion in isolation enhance vascular, blood marker, and perceptual responses when compared to exercise alone

Steward,

Hill,

Menzies

et al. 2024

Scandinavian Med Sci Sports

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Exercise and passive heating induce some similar vascular hemodynamic, circulating blood marker, and perceptual responses. However, it remains unknown whether post exercise hot water immersion can synergise exercise derived responses and if they differ from hot water immersion alone. This study investigated the acute responses to post moderate‐intensity exercise hot water immersion (EX+HWI) when compared to exercise (EX+REST) and hot water immersion (HWI+HWI) alone. Sixteen physically inactive middle‐aged adults (nine males and seven females) completed a randomized cross‐over counterbalanced design. Each condition consisted of two 30‐min bouts separated by 10 min of rest. Cycling was set at a power output equivalent to 50% V̇o2 peak. Water temperature was controlled at 40°C up to the mid sternum with arms not submerged. Venous blood samples and artery ultrasound scans were assessed at 0 (baseline), 30 (immediately post stressor one), 70 (immediately post stressor two), and 100 min (recovery). Additional physiological and perceptual measures were assessed at 10‐min intervals. Brachial and superficial femoral artery shear rates were higher after EX+HWI and HWI+HWI when compared with EX+REST (p < 0.001). Plasma nitrite was higher immediately following EX+HWI and HWI+HWI than EX+REST (p < 0.01). Serum interleukin‐6 was higher immediately after EX+HWI compared to EX+REST (p = 0.046). Serum cortisol was lower at 30 min in the HWI+HWI condition in contrast to EX+REST (p = 0.026). EX+HWI and HWI+HWI were more enjoyable than EX+REST (p < 0.05). Irrespective of whether hot water immersion proceeded exercise or heating, hot water immersion enhanced vascular and blood marker responses, while also being more enjoyable than exercise alone.

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Section: Introductionmentioning

confidence: 99%

Post exercise hot water immersion and hot water immersion in isolation enhance vascular, blood marker, and perceptual responses when compared to exercise alone

Steward,

Hill,

Menzies

et al. 2024

Scandinavian Med Sci Sports

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Sex-specific differences in insulin response and substrate oxidation after repeated, brief whole-body immersion in 45 °C water: A prospective, interventional study

Solianik,

Dauksaite,

Jarutiene

et al. 2025

Journal of Thermal Biology

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Agreement between the ventilated capsule and the KuduSmart® device for measuring sweating responses to passive heat stress and exercise

Ravanelli,

Newhouse,

Foster

et al. 2023

Appl. Physiol. Nutr. Metab.

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The present study assessed agreement between a wireless sweat rate monitor (KuduSmart® device) and the ventilated capsule (VC) technique for measuring: i) minute-averaged local sweat rate (LSR); ii) sweating onset; iii) sudomotor thermosensitivity; and iv) steady-state LSR, during passive heat stress and exercise. It was hypothesized that acceptable agreement with no bias would be observed between techniques for all assessed sweating characteristics. On two separate occasions for each intervention, participants were either passively heated by recirculating hot water (49°C) through a tube-lined garment until rectal temperature increased 1°C over baseline (n=8), or a 60-minute treadmill march at a fixed rate of heat production (~500W, n=9). LSR of the forearm was concurrently measured with a VC and the KuduSmart® device secured within ~2 cm. Using a ratio scale Bland-Altman analysis with the VC as the reference, the KuduSmart® device demonstrated systematic bias and not acceptable agreement for minute-averaged LSR (1.17 [1.09, 1.27], CV=44.5%), systematic bias and acceptable agreement for steady-state LSR (1.16 [1.09,1.23], CV=19.5%), no bias and acceptable agreement for thermosensitivity (1.07 [0.99, 1.16], CV=23.2%), and no bias and good agreement for sweating onset (1.00 [1.00, 1.00], CV=11.1%). ≥73% of all minute-averaged LSR observations with the KuduSmart® device (n=2743) were within an absolute error of < 0.2 mg/cm<sup>2</sup>/min to the VC, the reference minimum detectable change in measurement error of a VC on the forearm. Collectively, the KuduSmart® device may be a satisfactory solution for assessing the sweating response to heat stress where a VC is impractical.

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Acute and adaptive cardiovascular and metabolic effects of passive heat therapy or high‐intensity interval training in patients with severe lower‐limb osteoarthritis

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 5 publications

References 87 publications

Post exercise hot water immersion and hot water immersion in isolation enhance vascular, blood marker, and perceptual responses when compared to exercise alone

Post exercise hot water immersion and hot water immersion in isolation enhance vascular, blood marker, and perceptual responses when compared to exercise alone

Sex-specific differences in insulin response and substrate oxidation after repeated, brief whole-body immersion in 45 °C water: A prospective, interventional study

Agreement between the ventilated capsule and the KuduSmart® device for measuring sweating responses to passive heat stress and exercise

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