Table 2.

Muscle ultrasound

	Day 0	Day 5	Day 10	Day 15	Day 20
RF: AP diam (mm)
All pts	17 [15–20]	17 [15–20]	16 [13–19]	14 [12–17]	13 [9–15]
SF	17 [15–20]	18 [16–20]	19 [14–20]	15 [12–17]	14 [9–17]
HPF	17 [15–19]	16 [15–20]	16 [12–18]	13 [12–17]	9 [9–12]
RF: LL diam (mm)
All pts	43 [40–46]	41 [38–44]	40 [37–45]	40 [36–44]	38 [34–41]
SF	41 [40–44]	41 [37–42]	39 [35–42]	40 [34–44]	35 [34–40]
HPF	43 [40–47]	44 [37–46]	44 [37–47]	40 [37–47]	41 [37–43]
RF: CSA (cm2)
All pts	6.1 [5.1–7.3]	5.9 [4.8–6.3]	5.1 [4.3–6.2]	4.6 [3.8–5.3]	3.5 [3.2–4.7]
SF	6.1 [5.1–7.3]	5.9 [4.9–6.3]	5.6 [4.2–6.2]	4.7 [3.9–5.4]	3.5 [3.2–4.8]
HPF	6.3 [4.7–7.3]	5.9 [4.3–6.5]	5 [4.2–6.6]	4.4 [3.5–5.1]	3.5 [2.8–4.4]
RF: echogenicity, Heckmatt Scale
All pts	1 [1, 2]	2 [1, 2]	2 [1–2.5]	2 [1–3]	2.5 [1.5–3]
SF	1 [1, 2]	2 [1, 2]	2 [1.3–2.8]	2.3 [1.6–3.5]	2.5 [2, 3]
HPF	1.3 [1, 2]	1.5 [1, 2]	1 [1, 2]	1.5 [1–2.5]	2.5 [1–3]
AT: AP diam (mm)
All pts	22 [20–25]	21 [19–23]	20 [17–22]	19 [17–22]	18 [16–20]
SF	22 [20–24]	21 [19–24]	20 [18–23]	20 [17–23]	19 [15–21]
HPF	24 [20–26]	22 [19–23]	21 [17–22]	18 [17–20]	18 [18]
AT: LL diam (mm)
All pts	25 [22–26]	24 [21–26]	23 [21–25]	22 [20–25]	22 [20–27]
SF	25 [23–27]	24 [21–27]	23 [21–26]	23 [19–26]	25 [21–28]
HPF	23 [22–26]	24 [21–26]	22 [21–25]	21 [20–24]	22 [20–22]
AT: CSA (cm2)
All pts	5.6 [4.5–6.4]	4.8 [3.7–5.6]	4 [3.7–5.2]	4 [3.3–4.8]	4.2 [3.4–4.7]
SF	5.7 [4.7–6.8]	4 [3.6–6]	3.9 [3.7–5.2]	4 [3.3–5.7]	4 [3.2–5.2]
HPF	5.5 [4.5–6.2]	4.9 [4.2–5.9]	4.2 [3.6–5.3]	3.9 [3.3–4.5]	4.3 [3.4–4.6]
AT: echogenicity, Heckmatt Scale
All pts	2 [1, 2]	2 [1–3]	2 [1–3]	1.5 [1–3]	2.5 [1–4]
SF	1.8 [1–2.1]	2.3 [1.3–3]	2 [1.3–3]	2 [1–3.4]	3.5 [1–4]
HPF	2 [1, 2]	2 [1–3]	1.3 [1–3]	1.3 [1–2.5]	1.5 [1–3]

Data expressed as median [interquartile range]

See abbreviations in the text

See statistical significance in the text