Sawka M N, Glaser R M, Wilde S W, von Luhrte T C
J Appl Physiol Respir Environ Exerc Physiol. 1980 Nov;49(5):784-8. doi: 10.1152/jappl.1980.49.5.784.
To compare metabolic and circulatory responses for wheelchair ergometer (WERG) and arm crank ergometer (ACE) exercise at equal power-output (PO) levels, wheelchair-dependent (n = 7) and able-bodied (n = 10) subjects exercised at PO levels at 30, 90, 150, and 210 kpm times min-1 for each mode of ergometry. Steady-state values of oxygen uptake (VO2), pulmonary ventilation (VE), ventilatory equivalent of oxygen (VE times VO2-1), cardiac output (Q), stroke volume (SV), arteriovenous oxygen difference (a-VO2), heart rate (HR), systolic blood pressure (SBP), and rate pressure product (RPP) were determined at each PO. With the exception of VE times VO2-1 and a-VO2, each variable tended to increase with PO. Generally, VO2, VE, Q, SV, HR, SBP, and RPP responses were higher for WERG than ACE exercise at each PO level. When Q and RPP were expressed in relation to VO2, both variables were higher for WERG exercise. These data suggest that the wheelchair hand-rim system is inherently more strenuous than arm cranking, and that the latter should be studied further as an alternative method for wheelchair propulsion.
为比较在相同功率输出（PO）水平下，轮椅测力计（WERG）和手臂曲柄测力计（ACE）运动时的代谢和循环反应，依赖轮椅的受试者（n = 7）和健全受试者（n = 10）分别在30、90、150和210 kpm×min⁻¹的PO水平下，对每种测力计模式进行运动。在每个PO水平下测定摄氧量（VO₂）、肺通气量（VE）、氧通气当量（VE×VO₂⁻¹）、心输出量（Q）、每搏输出量（SV）、动静脉氧差（a-VO₂）、心率（HR）、收缩压（SBP）和率压积（RPP）的稳态值。除VE×VO₂⁻¹和a-VO₂外，每个变量都倾向于随PO增加。一般来说，在每个PO水平下，WERG运动时的VO₂、VE、Q、SV、HR、SBP和RPP反应均高于ACE运动。当Q和RPP与VO₂相关表示时，WERG运动时这两个变量更高。这些数据表明，轮椅手轮系统本质上比手臂曲柄运动更费力，并且手臂曲柄运动作为轮椅推进的替代方法应进一步研究。
