Maarten van Egmond

73 The association of muscle strength with muscle mass 4 All scores on muscle strength of our study cohort were all on average higher than predicted, compared with normative values. Our study cohort scored (mean, [SD]) 109.7 [19.5] percent of the predicted right HGS, 110.8 [19.9] percent of the predicted left HGS, 123.0 [42.1] percent of the predicted MIP, 108.4[(32.5] percent of predicted MEP and 119.0 [29.6] of functional lower extremity strength (Table 2). Based on the cut-off values for sarcopenia on L3 muscle index, 2 male individuals in our cohort were sarcopenic. 17 Pearson correlation coefficients between aspects of muscle strength and both skeletal muscle mass area at L3 and L3 muscle index were all significantly positive on a P < .01 (Table 3). Table 2. Scores on functional muscle strength a Aspects of functional muscle strength Total (N = 93) Male (n = 77) Female (n = 16) Right handgrip strength, kg 42.4 (10.5) 45.7 (7.9) 26.5 (5.0) Percentage of predicted 109.7 (19.5) 111.3 (18.7) 102.1 (22.3) Left handgrip strength, kg 40.43 (10.0) 43.5 (7.5) 24.8 (4.5) Percentage of predicted 110.8 (19.9) 111.9 (19.2) 105.5 (22.6) Maximal inspiratory pressure, mmHg 95.6 (33.0) 103.0 (30.2) 60.3 (20.3) Percentage of predicted 123.0 (42.1) 132.4 (38.6) 78.2 (25.8) Maximal expiratory pressure, mmHg 129.6 (43.8) 138.4 (42.3) 87.7 (20.2) Percentage of predicted 108.4 (32.5) 112.1 (33.3) 91.1 (21.6) 30-second chair stand test, counts 18.4 (4.8) 19.1 (4.7) 14.9 (3.5) Percentage of predicted 119.0 (29.6) 121.8 (30.0) 105.7 (23.8) a Means (standard deviations) are shown. Table 3. Correlations between aspects of functional muscle strength, skeletal muscle mass at L3 and muscle index L3 a Skeletal muscle mass L3 Muscle Index L3 r 95% CI r 95% CI Skeletal muscle mass L3 1 - 0.87 0.83 to 0.91 Right handgrip strength 0.68 0.53 to 0.79 0.55 0.36 to 0.68 Left handgrip strength 0.68 0.55 to 0.79 0.54 0.37 to 0.68 Maximal inspiratory pressure 0.62 0.46 to 0.73 0.55 0.38 to 0.67 Maximal expiratory pressure 0.56 0.42 to 0.68 0.48 0.33 to 0.64 30 second chair stand test 0.35 0.17 to 0.51 0.45 0.28 to 0.59 a Pearson correlation coefficients are significant at a P ≤ .01 level (2-tailed), r ; Pearson correlation coefficient