NMES with or without voluntary exercise causes ______________ than voluntary exercise alone.

• A. Greater or same strength improvement
• B. Lesser strength improvement
• C. No change
• D. Unclear outcomes

Answer: (A)

Combining NMES with voluntary exercise provides a greater or at least equal training stimulus compared with voluntary exercise alone. NMES makes the muscles contract by depolarizing motor neurons, which can recruit additional motor units that might not be activated during voluntary efforts, especially in people with impaired neural drive or strength deficits. When this additional activation is paired with voluntary effort, you get both neural and muscular adaptations occurring together—stronger and more consistently recruited muscle fibers, higher torque during training, and potential hypertrophy from the increased stimulus. So the combined approach tends to yield greater strength gains, or at minimum the same improvements as voluntary exercise alone, rather than smaller or unpredictable results.