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Table 4 Guidelines for the predicted 8 repetition maximum

From: Lower limb strength training in children with cerebral palsy – a randomized controlled trial protocol for functional strength training based on progressive resistance exercise principles

Station GMFCS level Predicted 8 RM
1. Leg-press I 120% of the body weight
  II 100% of the body weight
  III 80% of the body weight
2. Loaded sit-to-stand I 35% of the body weight
  II 30% of the body weight
  III 25% of the body weight
  1. Abbreviations: GMFCS = Gross Motor Function Classification System; RM = Repetition Maximum