Unfavorable Effects of Resistance Training on Central Arterial Compliance

Miyachi, Motohiko; Kawano, Hiroshi; Yamazaki, Ken; Takahashi, K; Hayashi, Koichiro; Sugawara, Jun; Tanaka, Hirofumi

doi:10.1097/00005768-200405001-00238

Cited by 131 publications

(246 citation statements)

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“…Previous research has found no change in arterial stiVness of peripheral muscular arteries with acute whole body resistance exercise (HeVernan et al 2006) and resistance exercise training Miyachi et al 2004). We noted a reduction in arterial stiVness of the resistance-exercised limb following single-leg lower-body resistance exercise and this is novel.…”

Section: Discussionmentioning

confidence: 88%

“…This possible increased stiVness with both acute (HeVernan et al 2006) and chronic resistance exercise Miyachi et al 2004) is restricted to central elastic arteries and not found in peripheral muscular arteries. To date, all studies examining the eVect of acute resistance exercise on the functional properties of the arterial tree have employed a whole-body resistance exercise regimen HeVernan et al 2006).…”

Section: Introductionmentioning

confidence: 80%

“…Our inability to detect group diVerences in peripheral PWV may have been due to lack of power stemming from small sample size. Resistance exercise training has been shown to have similar eVects on the vasculature in men (Miyachi et al 2004) and women . Our data further substantiates the notion that there are no gender diVerences in response to acute resistance exercise.…”

Section: Variablementioning

confidence: 99%

“…Increased arterial stiVness has been observed following acute resistance exercise HeVernan et al 2006) and resistance exercise training Miyachi et al 2004), although this is not a universal Wnding (Rakobowchuk et al 2005). This possible increased stiVness with both acute (HeVernan et al 2006) and chronic resistance exercise Miyachi et al 2004) is restricted to central elastic arteries and not found in peripheral muscular arteries.…”

Section: Introductionmentioning

confidence: 99%

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Effect of single-leg resistance exercise on regional arterial stiffness

et al. 2006

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To examine the effects of lower-limb unilateral resistance exercise on central and peripheral arterial stiffness, thirteen participants (7 male and 6 female, mean age = 21.5 +/- 0.7 years) performed leg press exercise using their dominant leg. Pulse wave velocity (PWV) was used to measure central (carotid to femoral) and peripheral (femoral to dorsalis pedis of both legs) arterial stiffness before, 5 min post, and 25 min post exercise. No change was found in central PWV. A leg-by-time interaction was found as peripheral PWV in the non-exercised leg did not change (7.9 +/- 0.3 m/s to 7.9 +/- 0.3 m/s to 8.0 +/- 0.3 m/s, P = 0.907) while peripheral PWV in the exercised leg significantly decreased from pre (8.7 +/- 0.4 m/s) to 5 min post exercise (7.5 +/- 0.3 m/s, P = 0.008) and 25 min post exercise (7.8 +/- 0.3 m/s, P = 0.031). Systolic blood pressure (BP) increased significantly from pre (126.9 +/- 3.4 mmHg) to 5 min post exercise (133.7 +/- 4.3 mmHg, P = 0.023) and was not different than resting values 25 min post exercise (123.2 +/- 3.1 mmHg). There was no change in diastolic BP. Compared to heart rate (HR) pre-exercise (55.4 +/- 1.4 bpm), HR was significantly increased 5 min post exercise (70.7 +/- 3.0 bpm, P = 0.001) and 25 min post exercise (69.1 +/- 2.0, P = 0.001). Acute resistance exercise appears to decrease arterial stiffness in the exercised leg while having no effect on central arterial stiffness or arterial stiffness of the non-exercised leg. These findings suggest that regional changes rather than systemic alterations may influence arterial stiffness following acute resistance exercise.

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Section: Discussionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 80%

Section: Variablementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of single-leg resistance exercise on regional arterial stiffness

et al. 2006

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“…In addition, Miyachi et al (2004) reported that whole body resistance exercise in young men increased carotid arterial stiVness, but in a later study they reported no change in endothelial function (Kawano et al 2008). In cardiovascular disease (CVD) models where endothelial dysfunction is evident the results have been more consistent.…”

Section: Introductionmentioning

confidence: 99%

Resistance training improves femoral artery endothelial dysfunction in aged rats

et al. 2009

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Although endurance exercise improves age-associated endothelial dysfunction, few studies have examined the effects of resistance training and the potential molecular mechanisms involved in altering vascular reactivity with age. Young (9 months) and aged (20 months) male, Fisher 344 rats were divided into four groups: Young Sedentary (YS, n = 14), Young Trained (YT, n = 10), Aged Sedentary (AS, n = 12), and Aged Trained (AT, n = 10). Resistance training consisted of climbing a 1 m wire ladder, at an 85 degrees angle, 3 days/week for 6 weeks with increasing weight added to the tail. Endothelial function in femoral arteries was determined by constructing acetylcholine dose-response curves on a wire myograph. Femoral artery phospho-Ser1179-eNOS, eNOS and Hsp90 expression were evaluated by Western blot. Acetylcholine-induced vasorelaxation was significantly (P < 0.05) impaired in AS compared to YS and YT but not AT compared to YS and YT. Phospho-Ser1179-eNOS and eNOS were elevated (P < 0.05) in aged animals but not changed with resistance training. Resistance training increased Hsp90 levels in both young and old animals. Therefore, resistance training improves age-associated endothelial dysfunction in femoral arteries without changes in eNOS phosphorylation and expression. Increased Hsp90 expression, a regulator of eNOS activity and coupling, suggests a potential mechanism for this improvement.

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Prevalence of Cardiovascular Disease Risk Factors Among National Football League Players

Tucker

Vogel²,

Lincoln³

et al. 2009

JAMA

133

153

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ONCERN EXISTS ABOUT THE cardiovascular health implications of large size among professional football players and those players who aspire to professional status. An estimated 4.3 million youth ages 6 to 17 years participated in football in 2000 in the United States, including tackle, touch, and flag football. 1 A 2005-2006 high school participation survey estimated that 1.1 million students participated in US football in that year, 2 and participation levels continue to increase. 3 Approximately 14% of male students in grades 9 through 12 in the United States participate in football. 1 Studies have suggested that fitness may provide protection against the health risks of obesity, 4 although other studies have found that physical activity is beneficial but does not eliminate these risks. 5 This issue is of interest in large, active athletes. A significant increase in body mass index (BMI, calculated as weight in kilograms divided by height in meters squared) for offensive and defensive linemen has been noted during the past 30 years, 6 and BMI fitting the category of class II obesity was reported in more than a quarter of National Football League (NFL) players in 2003. 7 In See also Patient Page.

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Unfavorable Effects of Resistance Training on Central Arterial Compliance

Cited by 131 publications

References 0 publications

Effect of single-leg resistance exercise on regional arterial stiffness

Effect of single-leg resistance exercise on regional arterial stiffness

Resistance training improves femoral artery endothelial dysfunction in aged rats

Prevalence of Cardiovascular Disease Risk Factors Among National Football League Players

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