Jack Kauj Ruam yog ib qho kev tawm dag zog uas ua ke nrog kev cob qhia cov hlab plawv nrog cov leeg nqaij, ua kom muaj txiaj ntsig zoo rau tag nrho lub cev. Nws yog qhov tsim nyog rau leej twg tab tom nrhiav kom lawv lub plawv dhia, txhim kho kev sib koom tes, thiab txhim kho lawv lub cev qis zog. Cov tib neeg yuav xav ua qhov kev tawm dag zog no vim nws tsis tsuas yog txhawb kev ua siab ntev thiab hlawv calories, tab sis kuj ntxiv ntau yam thiab lom zem rau lawv cov kev ua haujlwm niaj hnub.
Yog lawm, cov neeg pib tuaj yeem ua Jack Step ce. Txawm li cas los xij, ib yam li ib qho kev tawm dag zog tshiab, nws tseem ceeb heev kom pib qeeb thiab ua kom zoo rau daim ntawv kom tsis txhob raug mob. Yog tias muaj kev tsis xis nyob lossis mob, nws raug nquahu kom nres thiab nrhiav kev tawm tswv yim los ntawm kws kho mob. Jack Step ce yog qhov zoo tshaj plaws cardio txav uas tuaj yeem hloov kho kom haum txhua qib kev qoj ib ce. Rau cov neeg pib tshiab, nws tuaj yeem ua tau ntawm qhov qeeb qeeb lossis nrog tsawg dua.