Department of Physical Medicine and Rehabilitation, St Olav's University Hospital, Trondheim, Norway.
Spinal Cord. 2012 Apr;50(4):298-302. doi: 10.1038/sc.2011.129. Epub 2011 Nov 29.
Cross-sectional single-subject design.
To determine whether leg vascular occlusion (LEVO) augment arm cycling (ACE) peak oxygen uptake in spinal cord-injured individuals.
University Hospital, Norway.
Fifteen individuals with C(4) to T(12) spinal cord injury (SCI) were recruited and divided into two groups: injury above (SCI-high, n=8) or below (SCI-low, n=7) the T(6) level. Peak oxygen uptake (VO(2peak)) was measured during (1) ACE combined with LEVO, (2) ACE alone and (3) ACE combined with functional electrical stimulation cycling (FES hybrid cycling).
In the SCI-high group, VO(2peak) and peak Watt during ACE with LEVO were higher than ACE alone: 20.0 (±5.0) versus 17.6 (±5.0) ml kg(-1) min(-1) (P=0.006), and 72.5(±32) versus 80.0 (±34) Watt (P=0.016), respectively. However, FES hybrid cycling VO(2peak) was significantly higher than ACE with LEVO: 24.4 (±4.1) versus 20.0 (±5.0) ml kg(-1) min(-1) (P=0.006). In the SCI-low group, there was no difference in VO(2peak) and related parameters between the three modalities.
For spinal cord-injured individuals with injury level above T(6) (high) in the present study, LEVO combined with ACE augment VO(2peak). However, this acute increase in VO(2peak) was lower than when FES cycling was combined with ACE. These findings may have future implications for exercise prescription for spinal cord-injured individuals.
横断面单例设计。
确定下肢血管闭塞（LEVO）是否能增加脊髓损伤患者的手臂循环（ACE）峰值摄氧量。
挪威大学医院。
共招募了 15 名 C（4）至 T（12）脊髓损伤（SCI）患者，并将其分为两组：损伤位于 T（6）以上（SCI-高组，n=8）或以下（SCI-低组，n=7）。在以下三种情况下测量峰值摄氧量（VO（2peak））：（1）LEVO 联合 ACE；（2）单独 ACE；（3）LEVO 联合功能性电刺激（FES）循环。
在 SCI-高组中，LEVO 联合 ACE 时的 VO（2peak）和峰值瓦数高于单独 ACE：20.0（±5.0）与 17.6（±5.0）ml·kg(-1)·min(-1)（P=0.006），72.5（±32）与 80.0（±34）瓦（P=0.016）。然而，FES 混合动力循环的 VO（2peak）明显高于 LEVO 联合 ACE：24.4（±4.1）与 20.0（±5.0）ml·kg(-1)·min(-1)（P=0.006）。在 SCI-低组中，三种模式之间 VO（2peak）和相关参数没有差异。
在本研究中，损伤水平高于 T（6）（高）的脊髓损伤患者，LEVO 联合 ACE 可增加 VO（2peak）。然而，这种 VO（2peak）的急性增加低于 FES 循环与 ACE 联合时的增加。这些发现可能对脊髓损伤患者的运动处方具有未来意义。
