Table 5 Comparison of muscle composition and strength between individuals born preterm with and without bronchopulmonary dysplasia (BPD).
From: Adults born preterm have lower peripheral skeletal muscle area and strength
Mean ± SD | ||||||
|---|---|---|---|---|---|---|
Preterm—No BPD n = 39 | Preterm—BPD n = 16 | Mean difference (95% CI) | P | Adjusted mean difference (95% CI) | P | |
At rest | ||||||
Muscle area, mm2 | 867 (181) | 744 (153) | − 122 (− 226, − 19) | 0.021 | − 119 (− 235, − 3) | 0.044 |
Shear wave elastography, m/s | 2.4 (0.3) | 2.5 (0.5) | 0.1 (− 0.1, 0.3) | 0.267 | 0.1 (− 0.0, 0.4) | 0.204 |
Maximal contraction | ||||||
Muscle area, mm2 | 854 (217) | 768 (172) | − 85 (− 208, 36) | 0.165 | − 83 (− 220, 53) | 0.226 |
Shear wave elastography, m/s | 3.0 (1.0) | 3.4 (0.9) | 0.4 (− 0.2, 1.1) | 0.178 | 0.5 (− 0.1, 1.2) | 0.115 |
Muscle function | n = 38 | n = 16 | ||||
Handgrip, kg | 34.7 (10.1) | 35.8 (11.3) | 1.0 (− 5.2, 7.3) | 0.746 | 4.8 (− 1.8, 11.4) | 0.152 |
Leg extensor strength, Nm | 92.2 (45.0) | 74.3 (30.5) | − 17.8 (− 42.5, 6.8) | 0.152 | − 9.8 (− 36.4, 16.7) | 0.461 |
