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.
They lie superficial to the transversospinales muscles and the minor deep back muscles. The erector spinae muscles arise from different points on the pelvic and lower back regions, vertebral column or ribs.They have a parallel-oriented fibers, which run superiorly along the spine, and insert on the vertebrae, ribs or skull.emember, there are nine erector spinae muscles with attachment points at different locations along the spine. So the different muscles control the different regions of the spine. 1  The muscles that extend the lumbar spine are called lumbar erectors, or lower erectors.