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Research Proposal - how diet and dietary supplements affect muscle growth.

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´╗┐Area of Interest The area of interest that I will look into for designing a research proposal will be how diet and dietary supplements effect muscle growth. I have some experience in trying to increase muscle growth through weight training, and personally believe that there are numerous, influential factors which can affect your training goals. There are many variables to think about when wanting to increase muscle mass or size. These variables could be taken into consideration for pre-training, during training and also post-training. I believe one of the key elements you need to focus on when trying to gain muscle growth is diet; which can be a very vast and complicated topic. There can be many different suggested strategies of dieting and supplementing which can be implemented on achieving your specific goal. Therefore the different types of food and food supplements you consume can have a key influence on whether it aids your training programme and goals, or hinders it. Thalacker (2009) explains that weight training makes you stronger and bigger. However, the result you get from training might vary dramatically from the result of your training partner who is doing the exact same training program. The reasons for these variations might relate to both intrinsic factors such as your genetics and extrinsic factors like your diet. While you do not have any control over your genetics, you can control your diet. However, scientists do not clearly understand exactly how diet can affect changes in your muscle size. For example, protein intake is one variable that might affect your training response. ...read more.


Most of the attention has been focused on their effects at a muscular level. As these nutrients are ingested, however, it also means that gastrointestinal digestibility and absorption can modulate their efficacy significantly. Therefore, discussing the role of amino acids, protein, and protein hydrolysates in sports nutrition entails holding a discussion on all levels of the metabolic route. Research Problem After completing a literature review on journal articles relevant to how diet and dietary supplements can impact muscle growth, I have found a specific part of the topic which shows discrepancies; branched-chain amino acids. BCAAs are made up of three amino acids: leucine, isoleucine and valine. Amino acids are the building blocks of protein, which in turn are the building blocks of muscle. Eighteen amino acids make up what is considered a "complete" protein, the type found in food sources such as beef, chicken, milk, eggs and protein powder. Leucine, isoleucine and valine are considered "essential" aminos; that is, your body can't manufacture them on its own and thus needs to get them from your diet. After initial studies that showed promise for these particular aminos as muscle-building agents, BCAA?s supplements began to appear on the market. Stoppani (2009) presents information on the findings of a study which suggests that bodybuilders should stick with a complete BCAA?s supplement, and that more BCAA?s are better. Whereas Gleeson (2005) suggests that no valid scientific evidence supports the commercial claims that orally ingested BCAA?s have an anticatabolic effect during and after exercise in humans or that BCAA?s supplements may accelerate the repair of muscle damage after exercise. ...read more.


Participation in the study will be completely voluntary and withdrawal will be permitted at any time. Before the participants start the study, they will sign a consent form. The data produced from the study will be kept confidential and stored correctly for the maximum length of time permitted after completion. Furthermore the participants will be able to access their particular data of the study if requested. Finally, the participants will be debriefed at the end of the study and given the opportunity to ask any questions if they have any queries. Timeline Oct 2011- Receive permission from the gym to use their facilities for the study. Oct 2011- Advertise for suitable participants (email and posters). Provide my contact details for potential participants to contact me and declare interest in the study. Nov 2011- Await volunteer responses; inform them of when questionnaires will be sent. Nov 2011- Send out questionnaires to the participants who responded to the advertisements. Include a self addressed stamped envelope for them to return it. Notify the participants that the questionnaires have been sent. Dec 2011- Evaluate the questionnaires and choose the most suitable participants to take part In the study. Dec 2011- Meet up with the chosen candidates and go through a detailed briefing of the study and give them an opportunity to express any queries they have. Dec 2011- Carry out pre-training programme testing and measurements of the candidates. Dec 2011- Lead the candidates through an induction of the training programme. Jan 2012- Training programme commences. March 2012- Training programme finishes. March 2012- Post-training programme testing and measurements of the candidates. March 2012- Debrief of the study with the candidates and analysis of the results. ...read more.

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