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Joint cracking is the manipulation of joints to produce a sound and related "popping" sensation. It is sometimes performed by physical therapists, chiropractors, and osteopaths [1] pursuing a variety of outcomes. The cracking of joints, especially knuckles, was long believed to lead to arthritis and other joint problems. However, this is not ...
Many definitions of joint manipulation have been proposed. [1] The most rigorous definition, based on available empirical research is that of Evans and Lucas: [2] "Separation (gapping) of opposing articular surfaces of a synovial joint, caused by a force applied perpendicularly to those articular surfaces, that results in cavitation within the synovial fluid of that joint."
Back and neck pain are the specialties of chiropractic but many chiropractors treat ailments other than musculoskeletal issues. [7] There is a range of opinions among chiropractors: some believed that treatment should be confined to the spine, or back and neck pain; others disagreed. [63]
Facing a court’s action, the White House rolled back the order. A protest outside the U.S. Treasury building in Washington, D.C., on Feb 4. Stefani Reynolds—Bloomberg/Getty Images
As she seeks both to win back votes from Reform UK and to revitalise the party after last year’s election defeat, Ms Badenoch has pledged to crack down on legal and illegal migration.
It measures wasted votes for each party: the sum of votes cast in losing districts (losses due to cracking) and excess votes cast in winning districts (losses due to packing). The difference in these wasted votes are divided by total votes cast, and the resulting percentage is the efficiency gap.
This latest attempt to crack down on the practice comes amid a broader tax relief plan the administration is trying to push through Congress at a sensitive time when the country's finances are ...
Hydraulic fracturing [a] is a well stimulation technique involving the fracturing of formations in bedrock by a pressurized liquid. The process involves the high-pressure injection of "fracking fluid" (primarily water, containing sand or other proppants suspended with the aid of thickening agents) into a wellbore to create cracks in the deep rock formations through which natural gas, petroleum ...