Table 2.
Descriptive summary of intra-abdominal pressure (IAP) for household and lifting activities
| ACTIVITY | N | Range Maximal IAP |
Median Maximal IAP (IQR) |
Range AUC | Median AUC (IQR) | Range FMA | Median FMA (IQR) |
|---|---|---|---|---|---|---|---|
| Household Activities |
CmH2O |
CmH2O∙s |
CmH2O2∙s |
||||
| Erasing board, dusting ‡ | 57 | 4.2–25.3 | 9.5 (8–12.8) | 21.3–118.4 | 43.6 (37.4–60.8) | 28.5–821.8 | 146 (95.8–248) |
| Scrubbing floor on hands and knees‡ | 57 | 5.4–58.6 | 10.2 (8.1–13.9) | 25–253.8 | 43.9 (35.3–57.4) | 41.3–4297.5 | 135.7 (87.7–236.5) |
| Stand to sit† | 56 | 20.6–99.7 | 31.9 (28.4–39) | 87.3–342.9 | 141.3 (123–165.2) | 467.8–11214.2 | 1254.8 (960.5–1728.9) |
| Lifting Tasks | |||||||
| Lift 13.6 kg, floor to counter & back† | 57 | 17.1–62.6 | 34.5 (28.1–41.1) | 97.1–985.3 | 361.2 (286.2–461.1) | 579.5–16056.8 | 3822.3 (2272.2–4974.5) |
| Lift 18.2 kg, floor to counter & back† | 57 | 13.6–120 | 47.9 (37.6–59.7) | 40.8–1426.2 | 454.5 (371.1–621.3) | 217.3–32320.9 | 5828.5 (3958.9–9091.3) |
| Seated shoulder press, 3.6 kg† | 47 | 4–31.9 | 8.3 (6.2–12.8) | 37.4–311.5 | 76.5 (59.7–138.5) | 44.2–1528.2 | 206.4 (107.8–561.9) |
| Seated shoulder press, 4.5 kg† | 48 | 5.5–36.3 | 11.5 (8.1–15.2) | 31.3–361.5 | 108.7 (82.9–156.9) | 45.4–3917.7 | 372.1 (189.9–662.5) |
| Seated shoulder press, 5.5 kg † | 41 | 3.9–24.9 | 10.5 (7.7–13.8) | 11.5–190.2 | 100.7 (70.9–118.7) | 17.4–1113.2 | 290.8 (160.6–496.8) |
| Seated shoulder press, 6.8 kg† | 12 | 8.1–19.3 | 10.8 (9.5–14.7) | 43.8–163.3 | 99 (65.9–122) | 118.1–914.1 | 319.8 (178.3–479.9) |
| Seated shoulder press, 9.1 kg † | 9 | 10.4–36.5 | 18.8 (13.1–30.2) | 80–292.6 | 180.9 (90.2–208.8) | 282.3–2569.8 | 1046.7 (474.4–2062.7) |
Note: N= number of participants to complete a given activity with adequate data; IAP= intra-abdominal pressure; AUC= Area under the curve, FMA= First moment of the area; IQR= Inter-quartile range;
*
=3 peak activities;
†
=5 peak activities;
‡
=10 peak activities