Why is energy surplus required for lean muscle mass gain and why is it a major challenge for most athletes to attain?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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2. Why is energy surplus required for lean muscle mass gain and why is it a major
challenge for most athletes to attain?
Transcribed Image Text:2. Why is energy surplus required for lean muscle mass gain and why is it a major challenge for most athletes to attain?
Social History: JD is a 19-year-old male basketball player who has recently signed a
contract with a major national league team. He has spent the previous two years at the
national sports institute living in residence (all meals provided). He is currently living in
shared accommodation with two other players as his parents live out of state. His
experience in the kitchen is "none" as he has never had the need to cook for himself,
Objective Data: His current weight is 196 Ibs (89 kg) and height is 6' 7". JD usually
trains twice daily and includes strength training three times per week.
He has made an appointment to see you privately because his coach has encouraged
him to increase his body weight. He wants to increase his lean body mass by increasing
his muscle mass. He managed to gain some weight while at the institute; however, he
needs to gain at least 5 kg in order to challenge for a key position within the team.
Dietary Data: A couple of the senior players in the team have convinced him to start
taking whey protein (analysis: 22 g of protein, 2 g of carbohydrate per serve) and have
encouraged him to start using creatine monohydrate. His current intake includes three
meals each day with inconsistent snacks. Most meals at lunch and dinner are
purchased and consumed on the run. He loves his X-Box in the afternoon, so usually
has a snack while playing this for a couple of hours.
Background: This case highlights different aspects of nutritional need for a young male
athlete with limited food preparation, skills and training for an intermittent sport.
Transcribed Image Text:Social History: JD is a 19-year-old male basketball player who has recently signed a contract with a major national league team. He has spent the previous two years at the national sports institute living in residence (all meals provided). He is currently living in shared accommodation with two other players as his parents live out of state. His experience in the kitchen is "none" as he has never had the need to cook for himself, Objective Data: His current weight is 196 Ibs (89 kg) and height is 6' 7". JD usually trains twice daily and includes strength training three times per week. He has made an appointment to see you privately because his coach has encouraged him to increase his body weight. He wants to increase his lean body mass by increasing his muscle mass. He managed to gain some weight while at the institute; however, he needs to gain at least 5 kg in order to challenge for a key position within the team. Dietary Data: A couple of the senior players in the team have convinced him to start taking whey protein (analysis: 22 g of protein, 2 g of carbohydrate per serve) and have encouraged him to start using creatine monohydrate. His current intake includes three meals each day with inconsistent snacks. Most meals at lunch and dinner are purchased and consumed on the run. He loves his X-Box in the afternoon, so usually has a snack while playing this for a couple of hours. Background: This case highlights different aspects of nutritional need for a young male athlete with limited food preparation, skills and training for an intermittent sport.
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