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Climbing is a superb example of primal exercise – the entire body is used in a highly integrated and ‘brain-gym’ type of way to combat gravity.
Why the assisted pull-up machine can help a primal or functional exercise program.
The sliding board ‘core trainer’ is one of the few gym machines that adds real value.
MRI’s and low back pain – when to consider them?
If your low back can bend backwards quite well and can bend to either side well. then it can function like a spring.