Cov menyuam yaus so ko taw yog siv los tiv thaiv ko taw poob thiab Achilles tendon contracture hauv cov neeg mob bedridden vim pob taws tendinitis, plantar fasciitis, mob los ntawm pob taws thiab ko taw.Nws yog qhov tsim nyog rau kev txhim kho pob qij txha pob txha, pob qij txha ntawm sab qis ntawm tibia thiab fibula, thiab kho pob qij txha ligament raug mob.Txoj hlua khi no yog qhov tshwj xeeb tshaj yog rau cov neeg mob uas muaj pob taws ruaj khov, uas tsis xav tau kev phais, lossis qhov hnyav thaum ntxov ntawm cov neeg mob uas muaj pob qij txha qis tom qab phais.Lub rocker ntiv taw thiab pob taws yog tsim los txo qis kev txav ntawm ko taw pob qij txha thiab ua kom lub zog tsav tsheb thaum taug kev.Cov khoom no tuaj yeem siv los pab kho sab nraud tom qab kho nrog steel phaj thiab lwm yam kev phais pob taws ruaj khov thiab ceg pob txha.