Supplementary information files for Comparison of two Borg exertion scales for monitoring exercise intensity in able-bodied participants, and those with paraplegia and tetraplegia

Supplementary information files for article Comparison of two Borg exertion scales for monitoring exercise intensity in able-bodied participants, and those with paraplegia and tetraplegia <br> Study design Cross-sectional cohort study. Objectives To compare ratings of perceived exertion (RPE) on Borg’s 6–20 RPE scale and Category Ratio 10 (CR10) in able-bodied (AB) participants during upper and lower body exercise, and recreationally active participants with paraplegia (PARA) and athletes with tetraplegia (TETRA) during upper body exercise only. Setting University and rehabilitation centre-based laboratories in UK and Netherlands. Methods Twenty-four participants were equally split between AB, PARA, and TETRA. AB performed maximal tests using cycle (AB-CYC) and handcycle (AB-HC) ergometry. PARA and TETRA performed maximal handcycle and wheelchair propulsion tests, respectively. Oxygen uptake (V̇O2) and blood lactate concentration were monitored throughout. RPE was rated each stage on Borg’s RPE scale and CR10. Thresholds were identified according to log-V̇O2 plotted against log-blood lactate (LT1), and 1.5 mmol L−1 greater than LT1 (LT2). Results RPE from both scales were best fit against each other using a quadratic model, with high goodness of fit between scales that was independent of exercise mode and participant group (range R2: 0.965–0.970, P Conclusion Strong association between Borg’s RPE scale and CR10 suggests they can be used interchangeably. RPE at lactate thresholds were independent of mode of exercise and level of spinal cord injury. However, inter-individual variation precludes from making firm recommendations about using RPE for prescribing homogenous exercise intensity.

《用于监测健康受试者及截瘫、四肢瘫患者运动强度的两种博格自觉劳累量表对比》论文补充信息文件

研究设计：横断面队列研究。

研究目标：对比健康受试者（able-bodied, AB）在上下肢运动时的博格6-20自觉劳累量表（Borg’s 6–20 RPE scale）与分类比率10量表（Category Ratio 10, CR10）的自觉劳累分级（Rating of Perceived Exertion, RPE）评分；同时对比仅开展上肢运动的休闲运动活跃截瘫（paraplegia, PARA）受试者与四肢瘫（tetraplegia, TETRA）运动员受试者的两类量表评分。

研究场所：英国与荷兰的大学及康复中心实验室。

研究方法：24名受试者被平均分为AB、PARA、TETRA三组。健康受试者分别通过功率自行车（AB-CYC）与手摇功率车（AB-HC）完成最大运动功率测功测试；截瘫受试者与四肢瘫受试者分别完成手摇功率车与轮椅推进最大运动测试。全程监测受试者的摄氧量（Oxygen uptake, V̇O2）与血乳酸浓度。在每个运动阶段，均采用博格自觉劳累量表与CR10量表进行RPE评分。根据对数摄氧量与对数血乳酸的拟合关系确定乳酸阈1（LT1），并以较LT1高1.5 mmol·L⁻¹的水平确定乳酸阈2（LT2）。

研究结果：两类量表的RPE评分通过二次模型拟合效果最优，量表间拟合优度极高，且不受运动模式与受试者群体影响（R²范围：0.965~0.970，P）。

研究结论：博格自觉劳累量表与CR10量表间存在强相关性，提示二者可互换使用。乳酸阈处的RPE评分不受运动模式与脊髓损伤程度的影响。但个体间差异使得无法明确推荐使用RPE来制定同质化运动强度的运动处方。