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Table 1 Descriptive data

From: Validity of ultrasonography-derived predictions for estimating skeletal muscle volume: a systematic literature review

Subjects Body part Mean MVMRI [± SEM] (± SD) Mean MVUS [± SEM] (± SD) Position MRI Position UL QUADAS References
26 ♂ (23–34y) Anterior upper arm 297.5 [14.9] cm3 273.6 [15.4] cm3 Supine Standing 8/11 [35]
Posterior upper arm 405.4 [22.6] cm3 387.9 [30.9] cm3
26 ♂ (X̄ 25.7y) Anterior upper arm    Supine Standing 8/11 [9]
Posterior upper arm
46 ♂ (20–70y) Anterior upper thigh 1637.5 (383.51) cm3 1660.7 (386.2) cm3 Supine Standing 8/11 [33]
27 ♂ (X̄ 25.3y) Anterior upper arm 311.5 (68.5) cm3   Supine Standing 8/11 [34]
Posterior upper arm 427.0 (112.2) cm3
Anterior upper thigh 1825.3 (428) cm3
Posterior lower leg 1072.7 (226.3) cm3
72 ♂♀ (18–61y) Total body 20.2 (6.5) kg 19.6 (6.5) kg Supine Standing 8/11 [37]
Arm 2.0 (0.7) kg 1.9 (0.7) kg
Trunk 8.3 (2.9) kg 8.2 (2.8) kg
Thigh 7.7 (2.6) kg 7.5 (2.2) kg
Lower leg 2.2 (0.6) kg 2.2 (0.6) kg
10 Prepubertal children Total body 9.9 (1.4) kg 9.5 (1.1) kg Supine Standing 8/11 [30]
(X̄ 9.2y) ♂ Arm 0.8 (0.1) kg 0.7 (0.1) kg
(X̄ 10.3y) ♀ Trunk 4.3 (0.7) kg 4.7 (0.6) kg
Thigh 3.6 (0.6) kg 3.3 (0.6) kg
Lower leg 1.1 (0.2) kg 0.7 (0.1) kg
21 Adolescents Total body 17.4 (3.8) kg 17.5 (4.3) kg
(X̄ 14.1y) ♂ Arm 1.5 (0.4) kg 1.5 (0.4) kg
(X̄ 13.8y) ♀ Trunk 7.3 (1.6) kg 7.5 (1.7) kg
Thigh 6.6 (1.5) kg 6.5 (1.8) kg
Lower leg 2.0 (0.4) kg 1.9 (0.5) kg
147 ♂♀ (19–77y) Anterior upper arm 182.2 (65.4) cm3 179.4 (62) cm3 Supine Standing 8/11 [25]
20 ♂♀ (20–41y) Inner upper thigh 19.70 (9.29) cm3   Supine Standing 9/11 [38]
9 children* (2–6y) Posterior lower leg medial & lateral 11.92 (9.12) cm3   Did not report Prone 8/11 [32]
60 ♂ (6–12y) Total body 9113 (2241) cm3 8942 (2841) cm3 Supine Standing 8/11 [31]
  Arm 851 (198) cm3 825 (194) cm3
  Trunk 3495 (795) cm3 3453 (780) cm3
  Thigh 3579 (1026) cm3 3484 (986) cm3
  Lower leg 1164 (295) cm3 1180 (323) cm3
37 ♀ (6–12y) Total body 7688 (2339) cm3 7804 (2461) cm3
  Arm 743 (208) cm3 719 (232) cm3
Trunk 2798 (519) cm3 2982 (929) cm3
Thigh 2905 (905) cm3 3030 (1015) cm3
Lower leg 1084 (344) cm3 1074 (346) cm3
60 ♂♀ (51–77y) Anterior upper thigh 1000 (373.3) cm3 1019.5 (370.9) cm3 Supine Standing 8/11 [39]
61 ♂ (X̄ 20.4y) Total body 38.5 (5.8) kg 38.5 (5.7) kg Prone Standing 9/11 [36]
  1. SEM, standard error of the mean. SD, standard deviation. X̄, mean in sample. y, years. ♂, boys and males. ♀, girls and females
  2. *Nine children with bilateral involvement spastic CP (6 ♂ and 3 ♀) in total, 18 lower limbs were evaluated