From how long each workout should last to turning fat into muscle, here are the straightforward answers to your strength-training questions.

Q: “I’ve failed to add muscle in the past. Why will it work now?

A: If your efforts have been unsuccessful in the past, this had nothing to do with your body being fundamentally resistant to exercise and everything to do with your approach. In other words, you didn’t have a focused plan, didn’t set realistic, achievable goals or didn’t eat the right foods – or some combination of the three.

Anyone can make positive changes to the way they look, but that’s not going to happen overnight. Going to the gym once or twice a week won’t give you a radical transformation, especially if you don’t work hard or aren’t eating well.

Muscle & Strength FAQs Answered | Men's Fitness UK

Q: “Can I turn my body fat into muscle?

A: Fat and muscle are two totally different types of tissue, so it’s impossible for one to turn into the other. Muscle is active tissue that burns calories, while fat tissue stores excess energy.

When you train hard you burn away fat and build muscle, giving an appearance that one has turned into the other, but that’s not actually the case.

Q: “How often do I need to work out?

A: Less frequently than you might think. And it’s certainly not the case that more is better. That’s because it’s actually when you’re recovering that your muscle size and strength increases. If you don’t take the time to recover sufficiently you won’t see improvements.

It’s not just your muscles that need time to recover; your nervous system is working hard to recruit your muscles, something it’s not used to doing, so it also needs time to recover.

Q: “How long should each workout last?

A: The perfect workout should take less than an hour to complete, including warm-up, warm-down and stretching.

Research suggests that your levels of the growth hormone testosterone peak around 45 minutes into a workout and then quickly subside as your levels of cortisol, the stress hormone that breaks down muscle tissue and damages cells, rise. So keep your workouts short and effective.

Q: “Do crunches build a six-pack?

A: You can perform hundreds of crunches every day and have the strongest abs in the world, but if they’re under a layer of fat then you’re not going to see them.

And if you’re trying to burn fat, crunches are just about the worst move you could choose – in fact, you’d have to do about 500,000 of them to burn 1kg of fat. That’s about four weeks of non-stop crunching.

Muscle & Strength FAQs Answered | Men's Fitness UK

Q: “Are free weights better than machines?

A: Resistance machines have their place in a gym: they’re a great way for beginners to learn movement patterns without the risk of injury, and they allow experienced trainers to isolate specific muscles to lift more weight. But because the movement is restricted, they won’t work the stabilising muscles that are so important in keeping you free of injury.

Using free weights may require more skill, but it will recruit those stabilising muscles and better prepare your body for other activities, especially sports.

Q: “How quickly will I see results?

A: Even with the help of this book, don’t expect overnight success. You need to lift heavy weights regularly to stimulate the muscle into growing, eat a diet of high-quality protein and carbs with no junk and get plenty of sleep. It’s a big commitment.

Q: “Aren’t squats bad for my knees?

A: Performed incorrectly, any move is dangerous, although squats have a particularly bad reputation. But a correct squat – in which your feet are shoulder-width apart and your knees stay in line with your toes – places emphasis on the quads, glutes and hamstrings, and not on any joints. This can reduce the risk of injury by strengthening the muscles and supporting tissues around the knee joint.

Muscle & Strength FAQs Answered | Men's Fitness UK

Q: “Are lighter weights best for toning?

A: ‘Toning’ is one of the most popular words in the exercise world. It is also one of the most redundant. You can’t ‘tone’ a muscle, only build it or maintain it, while stripping away fat to give it a more prominent appearance. So when people say they want to ‘tone up’ they actually mean that they want to add muscle, lose fat or a bit of both.

Q: “How effective are bodyweight moves?

A: If you’re new to training or returning from injury, bodyweight moves are the perfect preparation for heavier lifts. They can also be used effectively as part of supersets or bodyweight circuits, and are far better at building strength and stability in your joints and core than resistance machines.