However, the DM1 patients that express higher levels of IL-6 are significantly weaker compared to those that had a normal SASP profile for all muscle groups tested: ankle dorsiflexors (−18%, p = 0.006), hip flexors (−14%, p = 0.001), knee extensors (−12%, p = 0.015), knee flexors (−12%, p = 0.021), shoulder flexors (−22%, p = 0.006), shoulder abductors (−16%, p = 0.016), elbow flexors (−5%, p = 0.032), elbow extensors (−24%, p = 0.003) (Fig. 4i, j). This evidence concerns the gene IL6 and myotonic dystrophy type 1.