How long should I row on a rowing machine to maximize my fitness benefits while avoiding fatigue or injury? Is there a specific duration that most fitness enthusiasts recommend, especially for those just embarking on their rowing journey? Considering the varying intensities and personal objectives, what factors should influence the duration of my rowing sessions? For instance, if I am aiming for weight loss, would shorter, more intense intervals be more effective than longer, steady-paced workouts? Moreover, how do factors such as my current fitness level, overall health, and specific goals play into determining the ideal rowing time? Should I also take into account any advice from fitness professionals regarding the frequency of my workouts per week? Furthermore, how can I integrate rowing into a broader cross-training regimen for balanced physical development? Ultimately, what guidelines or principles should I follow to establish an effective rowing routine tailored to my unique needs?