Article

PURPOSE: To evaluate the effect of aerobic cycling training with lower limb
weights on cardiovascular fitness (peak VO(2)) and walking ability in chronic
stroke survivors, and to investigate the relationship between changes in these
parameters. METHODS: 133 Chinese patients with chronic hemiparetic stroke (mean
age 58 years) were randomized to either 8-week (5x/week) aerobic cycling training
with lower limb weights group (n = 68) or a low-intensity overground walking
group (n = 65). Peak VO(2), 6-minute walk distance (6MWD), knee muscle strength,
balance and spasticity were measured before and after intervention. RESULTS:
Cycling training increased peak VO(2) (24% vs. 3%, p < 0.001), 6MWD (2.7% vs.
0.5%, p < 0.001), paretic (11% vs. 1.6%, p < 0.001) and nonparetic knee strength
(16% vs. 1.0%, p < 0.001). In the cycling group, percent changes in peak VO(2)
were positively associated with those in paretic (r = 0.491, p < 0.001) and
nonparetic knee strength (r = 0.432, p < 0.001). Increased 6MWD correlated
significantly with improved balance, spasticity and paretic knee strength by the
stepwise regression analysis (r(2) = 0.342, p = 0.004), but not fitness gains.
CONCLUSIONS: The enhanced cardiovascular fitness after aerobic cycling training
in Chinese patients with chronic stroke is not associated with the increased
walking ability. Unparallel improvements in these parameters related different
determinants may have implications for intervention strategy.

Langue : ANGLAIS