Hammer Strength Select Leg Extension yog ib qho tseem ceeb ntawm kev cob qhia lub zog. Txhua qhov kev hloov kho tau nkag mus tau los ntawm qhov chaw zaum, thiab qhov chaw pib kho tau muab tsib lub ntsiab lus pib sib txawv. 22 daim nyob rau hauv Hammer Strength Select kab muab cov lus caw rau cov khoom siv rauj lub zog.