I have used papain with some marinades for goat meat. Personally I do not care much for marinades any more, at least not long ones. For example, I used to marinate chicken overnight with spices and yogurt when making chicken tikka or tandoori chicken.
1 Pain at the base of the spine causes the psoas muscle to shorten and weaken(1,2,3,). 2  80% of Western people will suffer from debilitating backpain some time in their lives(5).  Western style walking (comfortable shoes & flat ground) fails to trigger muscles that stabilize hip joints & lower back.
1 The muscles in the neck are tense, sore and feel hard to the touch. 2  Acute pain can give rise to abnormal neck posture in which the head is forced to turn to one side. This condition is known as torticollis.  The pain at the base of the skull may be accompanied by a feeling of weakness in the shoulders and arms.