Good evening ladies and gents

May I ask for your expertise in choosing the above. I want to test the hypothesis of: adolescents time spent in MVPA on weekends vs weekdays (moderate to vigorous physical activity) association with: age, gender, ethnicity, household income. After running multiple regression analysis with the dependant variable MVPAweekend for example, the R2 is very small 0.2 and everything seems to be insignificant apart from gender (male p>0.001 ), income level (p>0.05), and bmi (obese p>0.05). Should I run logistic regression analysis instead? dependant variable converted to 1-if 60min mvpa per day is achieved and 0- if not.
Thanks if anyone can be bothered