wɪð bˈɑːɹbɛlz ænd dˈʌmbɛlz, lˈɪftɪŋ æt dˈɪfɹənt wˈeɪts ɹᵻkwˈaɪɚd ˈiːðɚɹ ɐ sˈɛt ʌv bˈɛlz wɪð dˈɪfɹənt fˈɪkst wˈeɪts, ɔːɹ ˈɛls ˈædɪŋ ænd ɹᵻmˈuːvɪŋ wˈeɪt plˈeɪts æt bˈoʊθ ˈɛndz, ɐ pɹˈɑːsɛs wˌɪtʃ kʊd tˈeɪk ˌʌp tʊ ɐ mˈɪnɪt.
With barbells and dumbbells, lifting at different weights required either a set of bells with different fixed weights, or else adding and removing weight plates at both ends, a process which could take up to a minute.