Higher left ventricular wall thickness and forearm blood flow may be associated with higher systolic blood pressure in swimmers

Hayashi, Suguru; Otsuki, Takeshi

doi:10.7600/jpfsm.8.51

Cited by 3 publications

(4 citation statements)

References 23 publications

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“…Aortic PWV and baPWV were measured using applanation tonometry (Hayashi & Otsuki, 2019;Otsuki et al, 2007) and air plethysmography (Otsuki et al, 2016(Otsuki et al, , 2019, respectively. Carotid, femoral, brachial and posterior tibial artery pulse waves were obtained using a pulse wave analyser (BP-203RPE II; Fukuda Colin).…”

Section: Pwvs and Blood Pressure Measurementsmentioning

confidence: 99%

“…SV was calculated as the product of the cross-sectional area and BF velocity integral in the left ventricular outflow tract just below the aortic valve attachment site (Hayashi & Otsuki, 2019). The crosssectional area was measured using B-mode echocardiography in the parasternal long axis view with a 2.5 MHz probe (Nemio SSA-550A;…”

Section: Sv Co and Systemic Vr Measurementsmentioning

confidence: 99%

“…Forearm BF and VR were measured using venous occlusion plethysmography with a mercury-filled strain gauge (EC6; Hokanson, Bellevue, WA, USA) (Hayashi & Otsuki, 2019;Otsuki et al, 2015).…”

Section: Forearm Bf and Vr Measurementsmentioning

confidence: 99%

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Acute increase in arterial stiffness after swimming in cooler water

Hayashi

Otsuki

2021

Clin Physio Funct Imaging

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As the popularity of open cold-water swimming increases, it is timely to consider the effects of cold-water immersion (Tipton et al., 2017).In a well-written narrative review, Knechtle et al., (2020) have stated that cold-water swimming has a wide variety of health benefits, including changes in haematological and endocrine function, fewer upper respiratory tract infections, amelioration of mood disorders and general well-being. However, it is also needed to be aware of potential cardiac and pulmonary risks that arise due to the cold exposure (Knechtle et al., 2020).Arterial stiffness, an independent risk factor for cardiovascular disease (Ohkuma et al., 2017), can also be affected by water temperature during swimming although the effects of cold-water swimming on arterial stiffness have not been explored. Blood pressure would be higher during cold-water swimming relative to

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Section: Pwvs and Blood Pressure Measurementsmentioning

confidence: 99%

Section: Sv Co and Systemic Vr Measurementsmentioning

confidence: 99%

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Acute increase in arterial stiffness after swimming in cooler water

Hayashi

Otsuki

2021

Clin Physio Funct Imaging

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“…Aortic PWV assessment. Aortic PWV was measured as described in our previous study, with minor modifications 10,11) . Briefly, carotid and femoral artery pulse waves were obtained in the supine position in triplicate by arterial applanation tonometry (BP-203RPE II; Omron Colin, Tokyo, Japan).…”

Section: Resistance Exercise Protocolmentioning

confidence: 99%

Blood pressure during resistance exercise is associated with 24-h ambulatory blood pressure and arterial stiffness

Otsuki

Kotato

2019

JPFSM

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Exaggerated blood pressure responses to aerobic and resistance exercise are associated with future cardiovascular disease. However, it remains unclear whether the excessive blood pressure responses induce these degenerative changes or are just an initial symptom of cardiovascular disease. The aim of this study was to test the hypothesis that exaggerated blood pressure responses to exercise and activities of daily living decrease vascular endothelial function and increase arterial stiffness. We investigated aortic pulse wave velocity (PWV, an index of arterial stiffness), blood pressure and heart rate at rest, during dynamic resistance (leg press) exercise and during 24-h ambulatory blood pressure monitoring (ABPM), one-repetition maximum of leg press exercise, maximal oxygen uptake and conventional cardiovascular risk factors such as serum cholesterol concentrations in 36 middle-aged and older individuals (mean age, 61.0 ± 1.3 years). Systolic blood pressure (SBP) during resistance exercise was correlated with aortic PWV, independent of resting SBP (partial r = 0.399). In the stepwise regression analysis, SBP during resistance exercise, age, body mass index, and 24-h ambulatory heart rate were used as significant predictors of aortic PWV, independent of other variables (R 2 = 0.722). Additionally, 24-h ambulatory SBP was correlated with SBP during resistance exercise (r = 0.513) and aortic PWV (r = 0.472). In conclusion, these results suggest that SBP during resistance exercise is an independent predictor of arterial stiffness. Repeated excessive rises in blood pressure during resistance exercise and activities of daily living may increase arterial stiffness.

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Low-intensity water exercise program acutely enhances cardiovagal activity

et al. 2022

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Water exercise has various health benefits. However, effects of low-intensity water exercise program, frequently conducted as a health promotion activity, on high frequency component of heart rate variability (HF, an index of cardiovagal activity and a predictor of future cardiovascular disease) has been unexplored. To investigate acute effects of a low-intensity water exercise program on cardiovagal activity, 35 young healthy men participated in this study as a part of the water exercise group (15 min of walking, 10 min of jogging, and 10 min of supine floating) or the control group (35 min of sitting at rest on land). Heart rate during walking, jogging, and floating in water were 88±13, 104±19, and 73±14 bpm, respectively. Ratings of perceived exertion (Borg's 6-20 scale) were 9±2, 10±2, and 7±2, respectively. Before the lowintensity water exercise program or 35-min sitting rest, there were no intergroup differences in natural logarithm of HF (lnHF), the ratio of low to high frequency component of heart rate variability (LF/HF), heart rate, blood pressure, sublingual temperature, and salivary amylase activity. An interaction between time and group was found in lnHF (P = 0.01); lnHF was greater 15 min and 30 min after versus before the program in the water exercise group, whereas there were no differences in the control group. There were no interactions in LF/HF, heart rate, blood pressure, sublingual temperature, and salivary amylase activity. These results suggest that the low-intensity water exercise program consists of walking, jogging, and supine floating acutely enhances cardiovagal activity.

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Higher left ventricular wall thickness and forearm blood flow may be associated with higher systolic blood pressure in swimmers

Cited by 3 publications

References 23 publications

Acute increase in arterial stiffness after swimming in cooler water

Acute increase in arterial stiffness after swimming in cooler water

Blood pressure during resistance exercise is associated with 24-h ambulatory blood pressure and arterial stiffness

Low-intensity water exercise program acutely enhances cardiovagal activity

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