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Effect of strength and aerobic training in children with cerebral palsy.

PURPOSE
The aim of this study was to evaluate the effectiveness of a strength and aerobic interval training program on arm-cranking economy, aerobic capacity, and gross motor function in children and adolescents with spastic diplegic cerebral palsy (CP).


METHODS
Seven subjects (five females, two males; mean age 15.9, range 14-18 yr) participated in a 12-wk aerobic interval and strength training program, three times per week, 70 min per session. The aerobic interval training required the subjects to perform 60-m uphill walking repetitions. Six individuals (four females, two males; mean age 15.7, range 14-17 yr) who did not receive the training program served as controls. Pre- and postexercise tests were performed to assess changes in arm-cranking economy, aerobic capacity, and gross motor function.


RESULTS
The results demonstrated significant (P < 0.05) reductions in the oxygen cost of arm cranking (mean +/- SD: pre: 13.2 +/- 3.22 mL x kg(-1) x min(-1), post: 12.7 +/- 3.38 mL x kg(-1) x min(-1)) and %VO2peak (pre: 75.8 +/- 3.55%, post: 61.8 +/- 7.47%) in the training group. Significant (P < 0.05) increases in aerobic capacity (pre: 17.5 +/- 4.45 mL x kg(-1) x min(-1), post: 20.8 +/- 5.93 mL x kg(-1) x min(-1)) were also noted for the training group. Significant (P < 0.05) improvements in gross motor function measures were also noted in the training group (pre: 30.35%, post: 33.85%).


CONCLUSION
These findings demonstrate that the application of a 12-wk strength and aerobic interval training program reduced the oxygen cost of arm cranking, improved aerobic capacity, and improved gross motor function in children and adolescents with CP.