NeuroGroup, Department of Physical Therapy, Federal University of Minas Gerais, Belo Horizonte, Brazil.
Cardiorrespiratory Performance Laboratory, Department of Physical Therapy, Federal University of Minas Gerais, Belo Horizonte, Brazil.
Arch Phys Med Rehabil. 2021 Sep;102(9):1755-1763. doi: 10.1016/j.apmr.2021.03.013. Epub 2021 Apr 5.
To investigate upper limb (UL) energy demand during unilateral arm crank submaximal exercise testing in individuals with stroke compared with healthy controls and the relationship between UL energy demand and UL activity in individuals with stroke.
Cross-sectional, observational study.
Research laboratory.
Individuals with chronic stroke (n=14) and controls (n=12), matched for age, sex, and body mass index (N=26).
Not applicable.
UL energy demand was measured as peak oxygen consumption (V̇o)/peak load during unilateral arm crank submaximal exercise testing. UL activity was measured using the Box and Block Test (BBT) and Grooved Pegboard Test (GPT).
The energy demand of the paretic side compared with the nonparetic side of the stroke group was 0.43 mL/kg/min/W (95% confidence interval, 0.03-0.83, P=.005) greater than the dominant compared with the nondominant side of the control group. The median difference between sides in peak V̇o/peak load was 52% for the group with stroke compared with 11% for the control group. Positive correlations between the median percentage difference between the paretic and the nonparetic side of peak V̇o/peak load and BBT were 0.72 (P=.004) and of V̇o/peak load and GPT was 0.77 (P=.002).
The higher energy demand of the paretic UL during unilateral arm crank submaximal exercise testing than the nonparetic and both UL of the controls together with the strong relationship between energy demand and UL activity suggest that the energy demand of the paretic UL has the potential to affect real-life UL activity after stroke.
与健康对照组相比，研究单侧手臂曲柄亚极量运动测试中上肢（UL）的能量需求，并研究卒中患者 UL 能量需求与 UL 活动之间的关系。
横断面、观察性研究。
研究实验室。
慢性卒中患者（n=14）和对照组（n=12），年龄、性别和体重指数匹配（N=26）。
不适用。
单侧手臂曲柄亚极量运动测试中，峰值摄氧量（V̇o）/峰值负荷时的 UL 能量需求。UL 活动采用 Box 和 Block 测试（BBT）和槽形 peg 板测试（GPT）进行测量。
与对照组的优势侧相比，卒中组患侧与非患侧相比，能量需求高 0.43 mL/kg/min/W（95%置信区间，0.03-0.83，P=.005）。与对照组相比，卒中组峰值 V̇o/峰值负荷两侧之间的差异中位数为 52%，而对照组为 11%。患侧与非患侧峰值 V̇o/峰值负荷的中位数差异与 BBT 呈正相关（r=0.72，P=.004），与 GPT 呈正相关（r=0.77，P=.002）。
与对照组的非患侧和双侧相比，单侧手臂曲柄亚极量运动测试中患侧 UL 的能量需求较高，能量需求与 UL 活动之间存在很强的关系，这表明患侧 UL 的能量需求有可能影响卒中后的实际日常生活 UL 活动。
