Effects of a warm hand bath on the blood flow in the shoulder, skin and deep body temperature, autonomic nervous activity, and subjective comfort in healthy women: An experimental cross‐over trial

Kudo, Yukiko; Sasaki, Makiko; Kikuchi, Y.; Sugiyama, Reiko; Hasebe, Makiko; Ishii, Noriko

doi:10.1111/jjns.12216

Cited by 5 publications

(1 citation statement)

References 16 publications

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“…Finally, changes in autonomic nervous activity observed with local alternating heat and cold stimulation cannot be applied to the effects of conventional contrast bath therapy. A previous study examining the effects of warm hand bathing on autonomic nervous activity reported an increase in heart rate and a decrease in HF, resulting in increased sympathetic activity [ 59 ]. In contrast, other studies have demonstrated that warm footbaths decrease the LF/HF ratio and suppress sympathetic activity [ 60 , 61 ].…”

Section: Discussionmentioning

confidence: 99%

Local alternating heat and cold stimulation affects hemodynamics and oxygenation in fatigued muscle tissue and autonomic nervous activity: a single-arm interventional study

Sawada,

Okawara,

Nakashima

et al. 2024

J Physiol Anthropol

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Background Local alternating heat and cold stimulation as an alternative to contrast bath may cause intermittent vasoconstriction and vasodilation, inducing a vascular pumping effect and consequently promoting increased tissue blood flow and oxygenation. This study aimed to examine the effects of local alternating heat and cold stimulation, using a wearable thermal device, on the hemodynamics of fatigued muscle tissue and autonomic nervous activity. Methods Twenty healthy individuals experienced fatigue in the periarticular muscles of the shoulder joint due to a typing task. Local alternating heat and cold stimulations were then applied to the upper trapezius muscle. Muscle hardness was measured using a muscle hardness meter, and muscle tissue hemodynamics and oxygenation were evaluated using near-infrared spectroscopy before and after the stimulation. Autonomic nervous activity was also evaluated using heart rate variability. Results Alternating heat and cold stimulation decreased muscle hardness of the fatigued trapezius muscle from 1.38 ± 0.15 to 1.31 ± 0.14 N (P < 0.01). The concentration of total hemoglobin in the trapezius muscle tissue increased from − 0.21 ± 1.36 to 2.29 ± 3.42 µmol/l (P < 0.01), and the tissue hemoglobin oxygen saturation also increased from 70.1 ± 5.4 to 71.1 ± 6.0% (P < 0.05). Additionally, the heart rate variability parameter, which is an index of sympathetic nervous activity, increased from 3.82 ± 2.96 to 6.86 ± 3.49 (P < 0.01). A correlation was found between increased tissue hemoglobin oxygen saturation and increased parameters of sympathetic nervous activity (r = 0.50, P < 0.05). Conclusions Local alternating heat and cold stimulation affected the hemodynamic response in fatigued muscle tissue and autonomic nervous activity. This stimulation is more efficient than conventional contrast baths in terms of mobility and temperature control and has potential as a new versatile therapeutic intervention for muscle fatigue. Trial registration UMIN-CTR (UMIN000040087: registered on April 7, 2020, https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000045710. UMIN000040620: registered on June 1, 2020, https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000046359).

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Section: Discussionmentioning

confidence: 99%

Local alternating heat and cold stimulation affects hemodynamics and oxygenation in fatigued muscle tissue and autonomic nervous activity: a single-arm interventional study

Sawada,

Okawara,

Nakashima

et al. 2024

J Physiol Anthropol

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The application of solar-to-thermal conversion phase change material in novel solar water heating system

et al. 2020

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The effects of personal control and perceived thermal comfort on occupant psychological health at the workplace

Mansor,

Sheau-Ting,

Weng-Wai

2024

Architectural Science Review

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Effects of a warm hand bath on the blood flow in the shoulder, skin and deep body temperature, autonomic nervous activity, and subjective comfort in healthy women: An experimental cross‐over trial

Abstract: Hand baths can improve the level of subjective comfort and increase the heart rate and might affect autonomic nervous activity. The skin temperature of the forearms was maintained for 30 min in the hand bath group.

Cited by 5 publications

References 16 publications

Local alternating heat and cold stimulation affects hemodynamics and oxygenation in fatigued muscle tissue and autonomic nervous activity: a single-arm interventional study

Local alternating heat and cold stimulation affects hemodynamics and oxygenation in fatigued muscle tissue and autonomic nervous activity: a single-arm interventional study

The application of solar-to-thermal conversion phase change material in novel solar water heating system

The effects of personal control and perceived thermal comfort on occupant psychological health at the workplace

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