Hi, Kane! As you can see in the correction, I rewrite your sentence positioning the adverb "também" before the verb. This order is grammatically correct. But the way you wrote your sentence is communicatevelly correct. As a native, I umderstood exactly what you meant. Good luck in your Portuguese studies!
Eu faço musculação na academia duas vezes por semana. Eu ando de bicicleta frequentemente também EU TAMBÉM ANDO DE BICICLETA FREQUENTEMENTE.