Department of Physical Therapy, University of Miami Miller School of Medicine, Miami, Florida; Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida.
Department of Physical Therapy, University of Miami Miller School of Medicine, Miami, Florida.
Arch Phys Med Rehabil. 2022 Jul;103(7):1303-1310. doi: 10.1016/j.apmr.2021.11.006. Epub 2021 Dec 16.
To examine the relationship between inspiratory muscle performance (IMP) and functional sitting balance (FSB) in persons with chronic spinal cord injury (SCI). We hypothesized that a moderate correlation would be found between IMP and FSB and that individuals with better balance would have better IMP.
The SCI-specific modification of the Function in Sitting Test (FIST-SCI) measured FSB. The IMP measures included (1) maximal inspiratory pressure (MIP), (2) sustained MIP (SMIP), and (3) inspiratory duration. Upper extremity motor score (UEMS) and level of injury (LOI) were taken from International Standards for Neurological Classification of Spinal Cord Injury examinations. Spearman correlational analyses assessed relationships among these factors in the sample (N=37). Mann-Whitney U tests explored differences between 2 comparison group pairs (tetraplegia group [TG] vs paraplegia group [PG]; independent transfer group [ITG] vs assisted transfer group [ATG]). Regression analysis examined variables predictive of FSB in the TG.
Research facility.
Volunteers with tetraplegia (n=21, American Spinal Injury Association Impairment Scale (AIS) A=8, B=7, C=6) and paraplegia (n=16, AIS A=9, B=4, C=3) (N=37).
Not applicable.
IMP, LOI, UEMS, FIST-SCI.
UEMS, MIP, SMIP, and LOI had moderate to high correlations with FIST-SCI scores (ρ=0.720 (P<.001), 0.480 (P=.003), 0.467 (P=.004), 0.527 (P=.001), respectively). UEMS, MIP, and FIST-SCI scores were higher in the PG and ITG than the TG and ATG, respectively (PG vs. TG P values=<.001, .008, .002, respectively, and ITG vs. ATG P values=<.001, .032, <.001, respectively). Further, SMIP and UEMS predicted FIST-SCI balance scores in the TG, accounting for 55% of total variance (P<.001) (FIST-SCI=11.88+0.03 [SMIP]+0.425 [UEMS]).
The relationship between IMP and balance appears preserved after SCI. FSB was predicted, in part, via UEMS and SMIP in the TG. Future research should focus on the effect of SCI-based breathing interventions on FSB.
研究慢性脊髓损伤（SCI）患者吸气肌功能（IMP）与功能性坐姿平衡（FSB）之间的关系。我们假设，IMP 和 FSB 之间存在中度相关性，且平衡能力较好的个体 IMP 也较好。
坐姿功能测试（FIST-SCI）的 SCI 特异性改良版用于测量 FSB。IMP 测量包括：（1）最大吸气压力（MIP），（2）持续 MIP（SMIP），和（3）吸气时间。上肢运动评分（UEMS）和损伤水平（LOI）取自国际脊髓损伤神经分类标准检查。Spearman 相关分析评估了样本中这些因素之间的关系（N=37）。Mann-Whitney U 检验比较了 2 组间的差异（四肢瘫痪组[TG]与截瘫组[PG]；独立转移组[ITG]与辅助转移组[ATG]）。回归分析检验了 TG 中 FSB 的预测变量。
研究设施。
21 名四肢瘫痪者（美国脊髓损伤协会损伤分级（AIS）A=8，B=7，C=6）和 16 名截瘫者（AIS A=9，B=4，C=3）（N=37）参与了研究。
无。
IMP、LOI、UEMS、FIST-SCI。
UEMS、MIP、SMIP 和 LOI 与 FIST-SCI 评分具有中度至高度相关性（ρ=0.720（P<.001），0.480（P=.003），0.467（P=.004），0.527（P=.001））。PG 和 ITG 的 UEMS、MIP 和 FIST-SCI 评分均高于 TG 和 ATG（PG 与 TG 的 P 值分别为<.001、.008、.002，ITG 与 ATG 的 P 值分别为<.001、.032、<.001）。此外，SMIP 和 UEMS 预测了 TG 中的 FIST-SCI 平衡评分，占总方差的 55%（P<.001）（FIST-SCI=11.88+0.03 [SMIP]+0.425 [UEMS]）。
SCI 后，IMP 与平衡之间的关系似乎仍然存在。在 TG 中，FSB 部分由 UEMS 和 SMIP 预测。未来的研究应重点关注基于 SCI 的呼吸干预对 FSB 的影响。
