You can get both muscular and strong by training with weights, but by modifying your approach and program, you can concentrate on one or the other -- strength or muscle. Of course, you can try to hit the sweet spot that gives you a good amount of both strength and muscle.

Here's a brief summary of the anatomy and physiology of muscle and how you can train to achieve certain outcomes.

---> What You Need to Know About Muscle

Keeping fit is about heart and lung fitness, and strength and muscle. Training for both also keeps your body weight in the healthy range. If you're an athlete like a marathoner or Olympic lifter, you need to concentrate on the main game, which is either running or lifting. But if in between, you can do both, and the only thing is figuring out the best way to do it.

---> Mixing Weights and Running

Sets and repetitions are the fundamental building blocks of a resistance training program. You need to understand how to combine various set and rep numbers for best effect. Strength training is not the same as bodybuilding or muscle training -- and then there's power training and possibly weight training for endurance.

---> Understanding Sets and Reps for Weight Training Success

I've considered dozens of sports that might benefit from weight training; in fact most sports and athletic activities and physical fitness programs in general can benefit from strength training.

But bowling? Yes, even bowling. When you analyze the final delivery action in bowling (lane bowling that is), you can see the fine motor skill, strength, balance and core strength required to control the ball.

---> Weight Training for Bowling