Physical activity and transcutaneous oxygen pressure in men with spinal cord injury

Abstract

Abstract-This pilot study proposed a method for assessing the status of vascular flow measured by transcutaneous oxygen pressure (TcPO2) in the area of the ischium in people with spinal cord injury (SCI). In a sample of 38 men (two groups: 12 physically active and 26 sedentary) with thoracic SCI, the distribution of the physiological response of the tissues under load during sitting was assessed through analysis of ischium TcPO2 values obtained by an oximeter. TcPO2 baseline, recovery time of TcPO2 after sitting (Trec), the percentage of TcPO2 (%TcPO2) of maximum pressure TcPO2, and mechanic maximal pressure (Pmax) were evaluated. Trec in the physically active group was significantly lower (p < 0.05) than in the sedentary group. Likewise, significant differences in %TcPO2 between groups (p < 0.05) were also found. We concluded that the physiological response of the tissues under an individual with SCI's own weight resulting from prolonged sitting is better in those who are physically active.

Feasibility of overnight electrical stimulation-induced muscle activation in people with a spinal cord injury. A Pilot study

“…Using the ES-shorts, muscle contractions decreased during the stimulation cycles, which is most likely due to fatigue of fast fatigue type 2 muscle fibers [27][28][29][30][31]. After SCI, composition of muscle fibers in muscles below the lesion level shifts towards fast fatigue muscle fibers [32][33][34][35][36][37].…”

Gluteal blood flow and oxygenation during electrical stimulation-induced muscle activation versus pressure relief movements in wheelchair users with a spinal cord injury

“…[15][16][17] Crespo Ruiz et al 13 described the physiological training effects: muscles will enlarge and become stronger and circulation will improve. ES-induced muscle activation with tetanic contractions allows mechanically unrestricted BF and may lead to less fatigue as a result of changes in tissue.…”

“…13,14 This may exert a decisive influence on the capacity to transport oxygen in the areas most affected by disuse resulting from the SCI itself. This is especially important when prolonged treatment is required, for example, in an attempt to prevent PUs.…”

“…The positive effect of ES on interface pressure as well as the positive effect of shifting posture on oxygenation has been demonstrated 13,14 However, there is no extensive literature describing the effect of ES on ischial oxygenation, nor has the effect of ES been compared with the effect of PRMs or the relationship between IT pressure and oxygenation and BF been described.…”

Measurement Performance of Activity Measurements with Newer Generation of Apple Watch in Wheelchair Users with Spinal Cord Injury

“…3 Studies in SCI have reported that regular PA can lead to an improved health condition by reducing cardiovascular risks, 4 pain, 5 the risk for shoulder pain and depressive symptoms, 6 and the risk for developing pressure injuries. 7 On the other hand, it is known from literature that too high amounts of PA in wheelchair athletes result in severe shoulder complications including chronic pain. 8 However, long-term studies correlating the amount of PA with the development of musculoskeletal complications are missing.…”