The effect of bed rest and an exercise countermeasure on leg venous function

Duijnhoven, Noortje T.L. van; Bleeker, Michiel W. P.; Groot, P.C.E. de; Thijssen, Dick H. J.; Felsenberg, Dieter; Rittweger, Jörn; Hopman, Maria T. E.

doi:10.1007/s00421-008-0854-z

Cited by 20 publications

(12 citation statements)

References 32 publications

(59 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the exercise intervention failed to prevent an exaggeration of the vasodilation in response to flow or to nitroglycerine (Bleeker et al 2005), which both are mediated by nitric oxide. Finally, resistive vibration training likewise failed to prevent decreases in popliteal vein capacitance (van Duijnhoven et al 2008), suggesting that the training modality may not fully safeguard orthostatic tolerance.…”

Section: Bed Rest Studiesmentioning

confidence: 97%

Vibration as an exercise modality: how it may work, and what its potential might be

2009

Self Cite

View full text Add to dashboard Cite

Whilst exposure to vibration is traditionally regarded as perilous, recent research has focussed on potential benefits. Here, the physical principles of forced oscillations are discussed in relation to vibration as an exercise modality. Acute physiological responses to isolated tendon and muscle vibration and to whole body vibration exercise are reviewed, as well as the training effects upon the musculature, bone mineral density and posture. Possible applications in sports and medicine are discussed. Evidence suggests that acute vibration exercise seems to elicit a specific warm-up effect, and that vibration training seems to improve muscle power, although the potential benefits over traditional forms of resistive exercise are still unclear. Vibration training also seems to improve balance in sub-populations prone to fall, such as frail elderly people. Moreover, literature suggests that vibration is beneficial to reduce chronic lower back pain and other types of pain. Other future indications are perceivable.

show abstract

Section: Bed Rest Studiesmentioning

confidence: 97%

Vibration as an exercise modality: how it may work, and what its potential might be

2009

Self Cite

View full text Add to dashboard Cite

show abstract

“…Immobilization, as tested in bed rest studies, demonstrated a significant decline in venous capacitance after 52 days, which was not affected by resistive vibration exercise. 187 Venous compliance remained unaffected.…”

Section: Venous Circulationmentioning

confidence: 97%

Cardiovascular Effects of Exercise Training

2010

View full text Add to dashboard Cite

“…21 Moreover, others found that vibration exercise involving a resistive component at least partly prevents detrimental changes in vascular function 4,22 and structure. 4,22,23 However, no previous studies have examined the potential of exercise countermeasures to prevent changes in artery wall characteristics associated with chronic bed rest. To examine this, we assessed the impact of countermeasures involving resistive exercise alone, or in combination with vibration, on carotid and superficial femoral arterial wall thickness and wall:lumen ratio before and after 60 days of bed rest in healthy, young volunteers.…”

mentioning

confidence: 99%

Impact of Bed Rest on Conduit Artery Remodeling

et al. 2010

Self Cite

View full text Add to dashboard Cite

Abstract-Physical inactivity is a potent stimulus for vascular remodeling, leading to a marked decrease in conduit artery diameter. However, little is known about the impact of physical inactivity on artery wall thickness or wall:lumen ratio or the potential of exercise countermeasures to modify artery wall thickness. The purpose of the study was to examine the impact of 60 days of bed rest, with or without exercise countermeasures, on carotid and superficial femoral artery wall thickness. Eighteen men were assigned to bed rest (second Berlin Bed Rest Study) and randomly allocated to control, resistive exercise, or resistive vibration exercise. Both exercise countermeasures were applied 3 times per week while the subjects were in the supine position on the bed. Sonography was used to examine baseline diameter and wall thickness of the carotid and femoral arteries. Bed rest decreased diameter of the superficial femoral artery (Pϭ0.001) but not the carotid artery (Pϭ0.29). Bed rest induced a significant increase in carotid and superficial femoral artery wall thickness (Pϭ0.007 and 0.03) and wall:lumen ratio (Pϭ0.009 and 0.001). Exercise prevented the increase in wall thickness of the carotid artery. In addition, exercise partly prevented the increased wall:lumen ratio in the superficial femoral artery. In conclusion, 8 weeks of bed rest resulted in Ϸ20% increase in conduit artery wall thickness. Exercise countermeasures completely (carotid artery) or partly (superficial femoral artery) abolished the increase in wall thickness. These findings suggest that conduit artery wall thickness, a vascular characteristic associated previously with atherosclerosis, can rapidly adapt to physical inactivity and exercise in humans. (Hypertension. 2010;56:240-246.)

show abstract

The effect of bed rest and an exercise countermeasure on leg venous function

Cited by 20 publications

References 32 publications

Vibration as an exercise modality: how it may work, and what its potential might be

Vibration as an exercise modality: how it may work, and what its potential might be

Cardiovascular Effects of Exercise Training

Impact of Bed Rest on Conduit Artery Remodeling

Contact Info

Product

Resources

About