Knowing what weight dumbbells to pick and how heavy you should lift in your workout is difficult, especially if you're just starting with strength training for beginners or dipping a toe into weightlifting or resistance training for best male enhancement supplement the first time. It's the next big decision after you've decided which kind of weight to go for (kettlebells, dumbbells, barbells and medicine balls, to name a few), and getting it right could be the difference between an epic and 'meh' gym workout. Plump for too heavy a weight and you run the risk of injuring yourself (you'll also need to consider your grip strength, testosterone support supplement as this could hinder you further). Go too light and your muscles won't be properly fatigued, grow muscle or build new tissue (unless you use a certain types of set called drop sets, that implement progressive overload by increasing time under tension, as opposed to lifting heavier). Yumi Nutrition's Kate Whapples, a strength and conditioning coach. If you're choosing between one of these as your goal, there are handy formulas to use, incorporating both specific weights and the number of reps/sets you do.

We know the 'lighter' and 'heavier' weight recommendations are very vague, but it really does depend on the individual, their experience, testosterone support supplement and their build, so it wouldn't be wise of us (or useful for you) if we were to specify weight ranges. That said, most workout plans will include a specific weight range or, at least, give you an indication of the right weight with how many reps you're being asked to complete. You may also want to consider whether you're doing a push or pull workout. If you're doing a push workout, you may already know that the muscles needed are stronger than those you need for pull exercises, and vice versa. An easy way to test is to try a couple of reps using a weight you think is appropriate. If it feels too light or too heavy, adjust accordingly. Saying that, you should be able to maintain good form for all reps - e.g. don't opt for an 8kg dumbbell because you can curl it for three decent reps but everything after that is a bit skewiff.

By the last rep in any set you should really be struggling, this ensures 'that you fatigue the muscle fully, resulting in your body adapting and becoming stronger to be able to perform the task you ask of it,' says Kate Maxey, strength and conditioning Master Trainer at Third Space, London. Pick a weight that makes the last couple reps of a set challenging but not impossible. We're trying to fatigue your muscles, not inflate your ego. Core exercises (like the ones used in Pilates and reformer Pilates) require a lighter weight, especially when you're starting out. If you try to jackknife or leg raise with a weight that's too heavy, you'll end up recruiting muscles in your back and neck, instead. Equally, exercises that ask you to raise your arms above your shoulders like most tricep exercises, shoulder presses, and straight-arm pulses will need to be light enough that you can keep your core aligned throughout.