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American Medical Association (AMA) Weight Limits for Occupational Lifting During Pregnancy
| Intermittent Liftinga
|
Repetitivea
|
|||
|---|---|---|---|---|
| Week of Gestation | Metric | U.S. Customary | Metric | U.S. Customary |
| 20 | >23 kg | >51 lbs | ||
| 24 | 11–23 kg | 24–51 lbs | ||
| 30 | >23 kg | >51 lbs | ||
| 40 | <14 kg | <31 lbs | <11 kg | <24 lbs |
Source. AMA (1984).
The terms intermittent and repetitive were not defined in the AMA guidance. Also, the AMA guidelines do not differentiate weight limits with regard to duration of exposure.
