Partial body weight treadmill training in persons with chronic stroke

Area of Science:

• Neurorehabilitation
• Biomechanics
• Clinical Trials

Background:

• Chronic stroke frequently results in impaired gait and balance.
• Restorative therapies aim to improve motor function and reduce fall risk.
• Partial Body Weight (PBW) support offers a potential intervention to facilitate gait recovery.

Purpose of the Study:

• To investigate the effects of partial body weight (PBW) ambulation on gait characteristics in individuals with chronic stroke.
• To compare different modes of PBW-supported walking: level ground and treadmill.
• To assess the impact of repeated PBW treadmill training on gait and balance.

Main Methods:

• Pilot studies comparing three walking conditions: level ground, level ground with PBW, and treadmill with PBW.
• Assessed gait symmetry (stance/swing times), muscle activity (sEMG), and balance (Tinetti score).
• Examined effects of 6-8 weeks of repeated PBW treadmill training on level ground ambulation.

Main Results:

• PBW ambulation, on level ground or treadmill, improved gait symmetry and muscle activation in 10 subjects.
• Repeated PBW treadmill training enhanced gait symmetry, single/double limb support, and balance scores in 8 subjects.
• Significant improvements in Tinetti Balance scores were observed post-training; sEMG showed no changes.

Conclusions:

• Partial body weight (PBW) treadmill training shows promise for normalizing gait in chronic stroke survivors.
• PBW interventions may be effective in improving balance and functional mobility after stroke.
• Further research is warranted to optimize PBW parameters for stroke rehabilitation.