Figure 2.

The associations between physical performance measures and D₃Cr muscle mass or ALM. All models are adjusted for age. ALM = appendicular lean mass. (A) Mean walking speed by quartiles of D₃Cr muscle mass/wgt and %fat. Interaction p-value derived from a model with continuous fat, D₃Cr muscle mass/wgt and an interaction term. Fat quartile cut points: Q1<23.84, Q2 23.84–<27.82, Q3 27.82–<31.86, Q4≥ 31.86. D₃Cr muscle mass/wgt Quartile Cut points: Q1<0.27, Q2 0.27–<0.30, Q3 0.30–<0.34, Q4≥0.34. (B) Mean walking speed by quartiles of ALM/ht² and %fat. Interaction p-value derived from a model with continuous fat, ALM/ht², and an interaction term. Fat quartile cut points: Q1<23.84, Q2 23.84–<27.82, Q3 27.82–<31.86, Q4≥31.86. ALM/ht² Quartile cut points: Q1<6.93, Q2 6.93–<7.49, Q3 7.49–<8.11, Q4≥8.11. (C) Mean number of chair stands per 10 s by quartiles of D₃Cr muscle mass/wgt and %fat. Interaction p-value derived from a model with continuous fat, D₃Cr muscle mass/wgt and an interaction term. Fat quartile cut points: Q1<23.84, Q2 23.84–<27.82, Q3 27.82–<31.86, Q4≥ 31.86. D₃Cr muscle mass/wgt quartile cut points: Q1<0.27, Q2 0.27–<0.30, Q3 0.30–<0.34, Q4≥0.34. (D) Mean number of chair stands per 10 seconds by quartiles of ALM/ht² and %fat. Interaction p-value derived from a model with continuous fat, ALM/ht² and an interaction term. Fat quartile cut points: Q1<23.84, Q2 23.84–<27.82, Q3 27.82–<31.86, Q4≥31.86. ALM/ht² quartile cut points: Q1<6.93, Q2 6.93–<7.49, Q3 7.49–<8.11, Q4≥8.11. ALM = appendicular lean mass; wgt = weight.