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.
The Latissimus Dorsi Muscleâs origin attachment point is the lowers spinal vertebrae, the lower ribs and lumber vertebrae and its insertion point of attachment is on the front side top of the Humerus, specifically the bicipital groove, which is achieved by its tendons wrapping around the underside of the humerus.