scholarly journals Lower limb dynamic activity significantly reduces foot skin perfusion– exploring data with different optical sensors in age-grouped healthy adults

2021 ◽  
Author(s):  
Margarida Florindo ◽  
Sérgio Loureiro Nuno ◽  
Luis Monteiro Rodrigues
Keyword(s):  
Optical Sensors ◽  
Lower Limb ◽  
Healthy Adults ◽  
Dynamic Activity ◽  
Skin Perfusion

scholarly journals Split-arm swinging: the effect of arm swinging manipulation on interlimb coordination during walking

2017 ◽  
Vol 118 (2) ◽  
pp. 1021-1033 ◽  
Author(s):  
Moshe Bondi ◽  
Gabi Zeilig ◽  
Ayala Bloch ◽  
Alfonso Fasano ◽  
Meir Plotnik
Keyword(s):  
Lower Limb ◽  
Human Locomotion ◽  
Interlimb Coordination ◽  
Healthy Adults ◽  
Lower Limbs ◽  
Control Mechanisms ◽  
Bilateral Coordination ◽  
Limb Coordination ◽  
Stepping Pattern

Control mechanisms for four-limb coordination in human locomotion are not fully known. To study the influence of arm swinging (AS) on bilateral coordination of the lower limbs during walking, we introduced a split-AS paradigm in young, healthy adults. AS manipulations caused deterioration in the anti-phased stepping pattern and impacted the AS amplitudes for the contralateral arm, suggesting that lower limb coordination is markedly influenced by the rhythmic AS during walking.

scholarly journals The effect of different positions on lower limbs skin perfusion pressure

2013 ◽  
Vol 46 (03) ◽  
pp. 508-512 ◽  
Author(s):  
Tota Kawasaki ◽  
Tetsuji Uemura ◽  
Kiyomi Matsuo ◽  
Kazuyuki Masumoto ◽  
Yoshimi Harada ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Critical Limb Ischemia ◽  
Perfusion Pressure ◽  
Limb Ischemia ◽  
Healthy Adults ◽  
Lower Limbs ◽  
Sitting Position ◽  
Skin Perfusion ◽  
Skin Perfusion Pressure ◽  
Leg Position

ABSTRACTWe have encountered situations of patients with critical limb ischemia accompanied by pain at rest and necrosis, who hang their legs down from the bed during sleep. This lower limb position is known to be a natural position, which reduces pain in the lower extremity induced by ischemia. However, the effect of this position on blood flow of the lower extremity is poorly understood. We studied whether measurements of skin perfusion pressure (SPP) changes by leg position and the difference between healthy adults and patients with critical limb ischemia. The subjects of this study were 10 healthy adults and 11 patients with critical limb ischemia. Patients with critical limb ischemia, including both dorsum of foot and plantar of foot, having SPP of lower limbs of less than 40 mmHg (supine position) were the object of this study. SPP was measured on four positions (supine position, lower limbs elevation position, sitting position, and reclining bed elevation of 20° position). In sitting position, both the number of healthy adults and critical patients show significant increases in SPP compared with the other three positions. These results suggest that sitting position is effective to keep good blood stream of lower limbs not only in healthy adults but also in patients with critical limb ischemia. However, an appropriate leg position should not have lower limbs hang downwards for long periods time because edema is caused by the fall in venous return in lower limbs, and the wound healing is prolonged.Our clinical research could be more useful in the future, particularly in developing countries, for surgeons managing wounds in leg and foot and preserving ischemic limbs.

Effekte der Vakuum-Kompressions-Behandlung auf die Hautmikrozirkulation von Patienten mit peripherer arterieller Verschlußkrankheit

VASA ◽  
2000 ◽  
Vol 29 (1) ◽  
pp. 53-57 ◽  
Author(s):  
Ubbink ◽  
van der Oord ◽  
Sobotka ◽  
Jacobs
Keyword(s):  
Lower Limb ◽  
Compression Therapy ◽  
Peripheral Circulation ◽  
Limb Ischaemia ◽  
Healthy Controls ◽  
Microcirculatory Perfusion ◽  
Transcutaneous Oxygen ◽  
Skin Perfusion ◽  
Lower Limb Ischaemia ◽  
Compression Treatment

Background: We investigated the short-term effect of vacuum compression (VC) treatment on skin microcirculatory perfusion in the foot of patients with lower limb ischaemia and healthy controls. Patients and Methods: Ten patients with intermittent claudication or rest pain and 5 healthy controls underwent vacuum-compression treatment for half an hour. The leg was positioned in an air-tight plexiglass cylinder in which hypobaric (–115 mm Hg) and hyperbaric (75 mm Hg) pressure could be generated alternately, in order to improve peripheral circulation. The effect on skin microcirculation was investigated using nailfold capillary microscopy (measuring nutritive perfusion), laser Doppler fluxmetry (LDF) (total skin perfusion) and transcutaneous oxygen tension measurements (TcpO2). Results: A few patients experienced ischaemic symptoms during VC, probably because the leg was pinched off through inflation of the cuff. In both patients and controls capillary microscopic parameters did not change significantly. In some cases, microcirculatory perfusion decreased because the leg had cooled during the treatment. Application of a heating matrass annihilated this effect. Only in the patient group a few LDF- and TcpO2 parameters improved slightly, but significantly. Conclusion: Vacuum-compression therapy only slightly improves total skin perfusion and oxygenation, but not the nutritive microcirculation, being an essential factor in the occurrence of ischaemic symptoms. We therefore conclude that this instrument in its present form is not an aid in the treatment of lower limb ischaemia.

Assessment of Lower Limb Ischemia With Measurement of Skin Perfusion Pressure in Patients on Hemodialysis

2007 ◽  
Vol 11 (3) ◽  
pp. 196-201 ◽  
Author(s):  
Masaru Shimazaki ◽  
Takayuki Matsuki ◽  
Kazuaki Yamauchi ◽  
Michihiro Iwata ◽  
Hiroshi Takahashi ◽  
...  
Keyword(s):  
Lower Limb ◽  
Perfusion Pressure ◽  
Limb Ischemia ◽  
Lower Limb Ischemia ◽  
Skin Perfusion ◽  
Skin Perfusion Pressure

scholarly journals Skin Perfusion Pressure Is a Prognostic Factor in Hemodialysis Patients

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Shingo Hatakeyama ◽  
Masaaki Saito ◽  
Kumiko Ishigaki ◽  
Hayato Yamamoto ◽  
Akiko Okamoto ◽  
...  
Keyword(s):  
Risk Factors ◽  
Overall Survival ◽  
Lower Limb ◽  
Poor Prognosis ◽  
Perfusion Pressure ◽  
Hemodialysis Patients ◽  
Smoking History ◽  
Skin Perfusion ◽  
Skin Perfusion Pressure ◽  
Independent Risk Factors

Peripheral arterial disease (PAD) is common in hemodialysis patients and predicts a poor prognosis. We conducted a prospective cohort study to identify risk factors for PAD including skin perfusion pressure (SPP) in hemodialysis patients. The cohort included 373 hemodialysis patients among 548 patients who received hemodialysis at Oyokyo Kidney Research Institute, Hirosaki, Japan from August 2008 to December 2010. The endpoints were lower limb survival (peripheral angioplasty or amputation events) and overall survival of 2 years. Our results showed that <70 mmHg SPP was a poor prognosis for the lower limb survival and overall survival. We also identified age, history of cardiovascular disease, presence of diabetes mellitus, smoking history, and SPP < 70 mmHg as independent risk factors for lower limb survival and overall survival. Then, we constructed risk criteria using the significantly independent risk factors. We can clearly stratify lower limb survival and overall survival of the hemodialysis patients into 3 groups. Although the observation period is short, we conclude that SPP value has the potential to be a risk factor that predicts both lower limb survival and the prognosis of hemodialysis patients.

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