Davies C T, Sargeant A J
Scand J Rehabil Med. 1975;7(2):45-50.
Twenty-five patients with healed fractures of the lower limb and nine normal control subjects were measured anthropometrically and during maximal and submaximal one- and two-leg bicycle exercise. Oxygen intake at a given submaximal work level of 450 kmp min-1 and cardiac frequency at an oxygen intake of 1.5 I min-1 were significantly higher (p less than 0.001) in the injured compared with the uninjured limbs of the patients and normal subjects. The maximum aerobic power of the injured and uninjured limbs of the patients and normal subjects. The maximum aerobic power of the injured and uninjured limbs of the patients were 18.8% (0.44 I min-1) and 25.6% (0.61 I min-1) respectively lower than the right and left legs of the control subjects. The corresponding value for 2-leg work was 17.6% (0.51 I min-1). The deterioration in 1-leg performance of the patients was associated with a concomitant decrease in leg muscle (plus bone) volume. In 2-leg work this factor was also probably combined with a deterioration in performance due to general cardiovascular deconditioning.
对25名下肢骨折已愈合的患者和9名正常对照者进行了人体测量，并在单腿和双腿最大及次最大强度自行车运动期间进行了测量。在给定的450 kmp min-1次最大工作水平下的摄氧量以及在摄氧量为1.5 I min-1时的心率，患者受伤肢体与未受伤肢体以及正常对照者相比，均显著更高（p小于0.001）。患者受伤和未受伤肢体以及正常对照者的最大有氧能力。患者受伤和未受伤肢体的最大有氧能力分别比对照者的右腿和左腿低18.8%（0.44 I min-1）和25.6%（0.61 I min-1）。双腿运动的相应值为17.6%（0.51 I min-1）。患者单腿运动表现的下降与腿部肌肉（加骨骼）体积的相应减少有关。在双腿运动中，这个因素可能还与由于全身心血管功能失调导致的运动表现恶化相结合。
