Pure Nitro Max During pullups, lat pulldowns, and similar exercises, make sure not to let your thumb wrap around the bar. Let your thumb rest comfortably next to your index finger. This will give your back muscles a better workout, rather than making your arms do the work. You will get used to the weird feeling and you will be targeting the right muscles.Volunteering for an active job is a great way to get fit and put in some community service at the same time. Many of the volunteer jobs around you community are physical and good exercise. It helps you help others and keeps you moving.