Lub Rooj Sib Tham Sab Nraud Sab Nraud Sab Nraud Sab Nraud Crunch ntawm Pem Teb yog ib qho kev tawm dag zog uas lub hom phiaj tseem ceeb, tshwj xeeb tshaj yog cov leeg plab thiab oblique, thaum tseem koom nrog lub duav flexors. Nws yog qhov kev xaiv zoo tshaj plaws rau cov tib neeg ntawm txhua theem kev tawm dag zog uas xav kom lawv cov tub ntxhais thiab txhim kho kev sib npaug thiab kev ruaj ntseg. Los ntawm kev koom nrog qhov kev tawm dag zog no rau hauv lawv txoj haujlwm niaj hnub, cov neeg siv tuaj yeem txhim kho lawv lub cev tag nrho lub zog, txhawb nqa lub cev zoo dua, thiab muaj peev xwm txo tau qhov mob rov qab.
Yog lawm, cov neeg pib tuaj yeem ua Lub Rooj Sib Tham Sab-rau-Side Leg Nce Crunch ntawm Pem Teb ce. Txawm li cas los xij, lawv yuav tsum pib nrog tus lej qis dua thiab teeb tsa kom txog thaum lawv lub zog thiab kev ua siab ntev txhim kho. Nws tseem yog ib qho tseem ceeb rau cov pib tshiab kom tsom mus rau daim ntawv thiab cov txheej txheem kom tsis txhob raug mob. Yog tias lawv pom qhov kev tawm dag zog dhau los, lawv tuaj yeem hloov kho nws los ntawm khoov lawv lub hauv caug lossis txo qhov ntau ntawm cov lus tsa suab.