Legge B J, Banister E W
J Appl Physiol (1985). 1986 Sep;61(3):1203-9. doi: 10.1152/jappl.1986.61.3.1203.
Relationships among O2 uptake (VO2), heart rate, and work rate during constant-load submaximal cycle ergometry and ramp-forced exercise to exhaustion have been studied in core groups of trained (n = 15) and untrained (n = 10), 20- to 29-yr-old males. A signal aim was to improve on the accuracy of the 1954 Astrand-Ryhming (A-R) nomogram predicting maximum aerobic power from heart rate elevation at submaximum work rates. A new nomogram has been developed based on a linear relationship, established in experimental groups, between VO2 and delta HR, the latter being defined as the elevation of exercise heart rate above that reached during zero-load pedaling at 90 rpm. The delta HR variable used in a nomogram linking it and submaximum VO2 (either derived by calculation from the concomitant steady-state work rate or measured directly from respiratory gas analysis) successfully differentiated maximum aerobic power of trained from untrained subjects in core groups whose different abilities could not otherwise be distinguished by the A-R nomogram itself. In a validation group of trained (n = 5), untrained (n = 5), and moderately trained (n = 4) 20- to 29-yr-old males, the correlation measured between VO2max values and those predicted from the new nomogram was significantly better (r = 0.98) (P less than 0.05) than predictions made from the A-R nomogram (r = 0.80).
在20至29岁的男性核心组中，研究了训练有素的男性（n = 15）和未经训练的男性（n = 10）在恒定负荷亚极量自行车测功和递增负荷运动至疲劳过程中，摄氧量（VO2）、心率和工作率之间的关系。一个主要目标是提高1954年阿斯特兰德-瑞明（A-R）列线图在亚极量工作率下根据心率升高预测最大有氧功率的准确性。基于在实验组中建立的VO2与心率变化（delta HR）之间的线性关系，开发了一种新的列线图，后者被定义为运动心率高于90转/分钟零负荷蹬踏时达到的心率。在将心率变化与亚极量VO2（通过伴随的稳态工作率计算得出或直接通过呼吸气体分析测量）联系起来的列线图中使用的心率变化变量，成功地区分了核心组中训练有素和未经训练受试者的最大有氧功率，而这些不同能力用A-R列线图本身无法区分。在一个由训练有素的男性（n = 5）、未经训练的男性（n = 5）和中度训练的男性（n = 4）组成的验证组中，VO2max值与新列线图预测值之间的相关性（r = 0.98）（P < 0.05）显著优于A-R列线图的预测值（r = 0.80）。
