Some heartworm medications require a monthly administration, while others work even longer (up to six months with an injectible product called moxidectin). There are many choices of heartworm preventive medications available, from topical products to chewable oral medications; most come in both dog and cat versions. Monthly heartworm preventive medications do not actually stay in your dogâs bloodstream for 30 days. The active ingredients work to kill any larvae that have been in the system for the past 30 days, clearing the body each month.
This is sub-optimal. The glutes are slow twitch dominant by a few percent, but the hamstrings are composed of a whopping 70% fast twitch fibers. The erector spinae are slow twitch dominant by around 6%. This means you should use low reps for the hamstrings, but medium to high reps for the lower back and the glutes.
Functional Anatomy: The Geek Stuff. The erector spinae muscles run the length of the back, from the sacrum all the way up to the base of the skull. When working unilaterally, the erectors laterally flex the spine and/or head. When working in unison, their role is to extend the head and spine.he erector spinae can be broken down into three different groups: â¢ The iliocostalis muscles (the most lateral group). These muscles run from the common origin to their respective ribs. â¢ The spinalis muscles (the most medial group).