This might be a slightly odd question. Does boxing, Muay thai, and MMA build bad posture eventually? I noticed after long periods of time, training 2 hours a day, 4-5 times a week, the back is not placed in a straight, good upright position. These fighting sports require a very slight hunch in shoulders upper back, to prevent blows, but also causes wear, tear, and exhaustion for me in this position. See the hunch below.
When I play basketball or flag football, my back is a straight upright position, whether it be diagonal and my knees are bent. Karate has less of this issue. Curious if anyone has any thoughts or way to alleviate this issue?
Boxing and MMA:
Karate: (more upright and straight)
Basketball:
(even when knees bent, back diagonal is generally straighter than fighting sports)



