Infant muscle activity is modified by inclined environments during different styles of rolling.

Additionally, for coordinated movements like A and E where we see an increasing trend of muscle activation, particularly for the erector spinae, rolling may be harder to achieve using these maneuvers in inclined seated environments.

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While not many significant differences were found, most likely due to the small sample size in our comparison groups, movement C exhibited a decreasing trend in muscle activity for all muscle groups, and a significant decrease for the abdominal muscles, as the seatback angle increased.

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