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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: J Electromyogr Kinesiol. 2018 Nov 8;44:8–14. doi: 10.1016/j.jelekin.2018.11.003

Figure 1.

Figure 1.

Group mean coactivation index over the stride (mean ± s.d.) for young and older adults during the three walking conditions. Asterisks indicate significant age effects in post-hoc tests.