Not Cathe here, but my advice is to lift heavy (2-3 sets/8-10 reps) with 1-2 minute breaks in between sets. Lifting lighter weights for many reps will encourage endurance, not necessarily bulk(hypertrophy) or strength for that matter(if you are new to weight training, then some strength will result from endurance work). Make sure you are lifting heavy(the last couple of reps will seem challenging and after your sets, you should feel like you really can't do anymore). Also, make sure you adequately rest the muscles you've worked. Don't work the same muscle group 2 days in a row for example.
carolyn
