This is an archive copy of a document originally located at http://www.ais.org.au/nutrition/FactGrowMuscles.htm
All copyright remains with the creator.
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This is an archive copy of a document originally located at http://www.ais.org.au/nutrition/FactGrowMuscles.htm
How to Grow Muscles
Most athletes are interested in increasing muscle mass to enhance their strength and power. There is a lot of confusion as to how to go about increasing muscle size and function. Here is a step-by-step guide to muscle growth.
Step One: Start with a good training program
Muscles needs stimulation to grow. Seek expert advice from a reputable strength coach. Look for someone with at least a Level 2 coaching qualification who is recommended by other health professionals. Adjust your program as your strength develops.
Step Two: Set realistic goals
Everyone is after quick results when it comes to muscle development but the reality is that muscles take time to grow. Everyone has a different genetic potential to develop muscle mass so your goals must be realistic for you. Gains usually occur relatively quickly at the start of a training program then slow down as the body adjusts. Most athletes want to increase muscle mass while simultaneously decreasing skinfolds. This is difficult to do, as one goal is a product of a negative energy balance (intake that is less than requirements), while the other is best achieved in the face of a positive energy balance. It is important to prioritise body composition goals.
Step Three: Support your training with a high energy diet which provides adequate protein
To gain muscle mass effectively, a positive energy balance of at least 2000-4000 kilojoules per day is required. This calls for a general increase in dietary intake. However, carbohydrate is the first nutrient to focus on, since muscle must be fuelled to do the training to stimulate muscles to grow. It is also important for athletes trying to gain muscle mass to meet their increased protein needs, but huge protein intakes are not required. In most cases, a high-energy diet which provides 1.2-2g of protein per kilogram of body mass will ensure that protein needs are met. These protein intakes are generally met by Australian eating patterns in which protein contributes 12-15% of total energy intake. Consuming protein above this level does not have an anabolic effect. Excess protein will be oxidised as an energy source and may contribute to gains in body fat. Very high protein diets displace other important nutrients from the diet and can be a source of unsaturated fat. Although it is important to achieve energy needs, a high-energy diet should not be seen as an excuse for gluttony. Excess consumption of high-fat foods can lead to excessive energy intake, and a greater risk of gaining fat mass rather than muscle mass.
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tep Four: Get organisedIncreasing your energy intake is not always easy. Many athletes with high energy needs are surprised to find they consume less than they think. It requires considerable organisation and commitment to consistently consume a high-energy intake. This includes having a planned approach to shopping and cooking to ensure appropriate foods are available, and carrying snacks around during the day to avoid missing snacks or having to rely on less suitable options.
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tep Five: Eat and drink frequentlyEating more frequently, rather than increasing the amount of food you consume at each meal , is a more effective way to ensure an increase in food and energy intake. Athletes who try to cram their nutritional needs into three meals will often suffer stomach discomfort from the sheer size of meals and end up abandoning the plan. Compact snacks and high-energy drinks offer an efficient way to top up between meals without filling up. Good choices include milk shakes and fruit smoothies, liquid meal supplements, cereal and sports bars, and flavoured dairy foods such as yoghurt.
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tep Six: Time meals and snacks appropriatelyIncluding a small serve of protein with all meals and snacks will optimise amino acid levels in the blood and may facilitate muscle development. Remember that protein comes from a wide range of sources including bread, breakfast cereal, rice and dairy products - it is not just found in meat. Eating a carbohydrate-rich, moderate-protein snack or meal immediately after training may help to optimise gains in muscle mass by increasing production of anabolic hormones, reducing protein breakdown and supplying amino acids for protein synthesis. This snack may be even more effective when consumed before the session, in the case of weight training workouts. At the AIS, we encourage athletes to consume a snack providing 1g of carbohydrate per kilogram of body weight plus 7-10g of protein within 30 minutes of finishing training. Suitable snacks are shown below:
| 60kg Athlete 200g fruit yoghurt + cereal bar 200g fruit yoghurt + 250ml juice 200g fruit yoghurt + banana 50g Sustagen Sport in 250ml water + cereal bar 30g Sustagen Sport in 250ml milk + cereal bar 200ml flavoured milk + cereal bar 200ml flavoured milk + 200g fruit yoghurt 200ml flavoured milk + banana 80kg Athlete 200g fruit yoghurt + 2 cereal bars 200g fruit yoghurt + cereal bar + 400ml sports drink 200g fruit yoghurt + cereal bar + 250ml juice 200g fruit yoghurt + cereal bar + banana 75g Sustagen Sport in 250ml water + cereal bar 60g Sustagen Sport in 250ml milk + cereal bar 200ml flavoured milk + 2 cereal bars 200ml flavoured milk + cereal bar + 200g fruit yoghurt 200ml flavoured milk + cereal bar + banana |
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tep Seven: Be patient and consistentIncreases in body mass of 2-4kg per month are generally considered achievable but individuals can respond differently to strength training. It is important to be consistent with your training and your diet. Some athletes fall into the trap of training and eating well for a couple of days then slacking off for a couple of days. A spasmodic approach to training and nutrition will slow your progress down.
Step Eight: Seek qualified advice before taking supplements
There are numerous supplements available on the market which promise to increase muscle mass and strength. The majority of these products and their claims, are not based on scientific evidence and are, therefore, a waste of money. However, there are a small number of supplements that may be useful for some athletes under specific circumstances. For most people wanting to increase muscle mass, the most useful supplement is one that provides carbohydrate plus moderate levels of protein and other nutrients. This supplement provides a compact and portable energy source with the right balance of fuel and protein. Although protein powders are all the rage in muscle building circles, these products are generally too low in carbohydrate, excessive in protein content - and too expensive. Compare the two products below:
| Protein Powder | Sustagen Sport | |
| Tin Size | 1.5kg | 900g |
| Cost per tin | $176.00 | $18.00 |
| Serve size | 30g | 60g |
| Serves per tin | 50 | 15 |
| Protein per serve | 27.6g | 15g |
| Carbohydrate per serve | 2g | 40g |
| Energy per serve | 480kj | 940kj |
| Cost per serve | $3.52 | $1.20 |
Before using any supplement seek expert advice regarding the efficacy, safety and legality of the product. Sports dietitians can provide qualified advice and the AIS Supplement Program can be found in the Supplements section of our website (www.ais.org.au/nutrition). The Australian Sports Drug Agency (www.asda.org.au) is also a source of information.
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Nine: Monitor your progress and adjust when necessaryIndividuals can respond very differently to training and nutrition programs. Some degree of trial and error is always required. The meal plan provides an example of the type of food intake required to support a strength training program for a 70kg athlete. However, the plan will not suit everyone.
| Quantity of food required to provide high carbohydrate and high protein needs for a 70 kg athlete | Amount of carbohydrate (g) | Amount of protein (g) | |
| Breakfast | 2 cups cereal 300 ml milk 2 slices toast 2 tablespoons jam 1 cup juice |
39 16 30 36 19 |
6 12 8 0 2 |
| Lunch | 2 bread rolls each with 50 g chicken + salad 1 banana 1 fruit bun 250 ml flavoured low fat milk |
78 20 34 17 |
41 2 6 13 |
| Dinner | Stir-fry with 2 cups pasta + 100 g meat + 1
cup vegetables 1 cup jelly + 1 cup custard |
100 82 |
50 13 |
| Snacks | 750 ml sports drink 1 carton yoghurt 1 piece fruit 1 cereal bar |
51 33 18 24 |
0 10 1 2 |
| Analysis | 580 g carbohydrate (8 g/kg) | 594 g 8 g/kg |
166 g 2.3 g/kg |
A sports dietitian can help to develop an individualised plan to suit the specific needs and goals of each athlete. Sports dietitians can also help monitor changes in skinfolds, weight and girths using a reliable technique. These results will help the athlete to assess their real progress in changing body composition.
Further reading:
Hawley, J., and L. Burke. Changing body size and shape. In: Peak Performance: training and nutritional strategies for sport by J. Hawley and L. Burke. Sydney: Allen & Unwin, 1998, p. 233-260.
Michelle Minehan, 2001
This is an archive copy of a document originally located at http://www.ais.org.au/nutrition/FactGrowMuscles.htm
All copyright remains with the creator.
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