"strain back" is correct and usable in written English.
You can use it to describe physical exertion in an effort to move, pull, or lift something. For example, "He had to strain back to lift the heavy box."
Pour in hot milk and stir well then strain back into a clean pan.
But because of disease quarantines that make it hard to import Asian pigs, experts said, it is unlikely that a pig brought the new strain back West.
Forwards, you'll get shoulder or neck strain; back, and you'll get numb nuts". What's my position like, I ask? "You look like you're about to drive into a paddling pool," he says.
All this causes a strain back in Lithuania where the economy is recovering after the painful austerity years and businesses are crying out for young people with the right skills.
Strain back into a large pot.
When the required genetic alteration(s) has been obtained the plasmid can be removed via a simple overnight incubation in the absence of selection, reverting the strain back to its "wild" state.
Broken feet, broken ribs, broken thumb, strained back, strained forearm, strained abdominal muscle — all have plagued his team.
Because of center Robert Lang's injury -- believed to be a strained back muscle -- Pittsburgh Coach Ivan Hlinka mixed up the lines Thursday.
Do it 100 times, or 300 times counting practice swings, and you've got a strained back.
Oye penned a Nature op-ed on the subject of regulating these yeast strains back in May.
Without Wright (strained back), the American offense failed and the team lost twice (on Thursday to the Dominican Republic).
