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| Name | Class |
|---|---|
| University of Gloucestershire | OTHER |
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The purpose of this study is to assess the effects of 10-weeks leucine supplementation on muscle growth, metabolism, body composition, inflammation and wellbeing in adolescents and young adults with CP.
Cerebral palsy (CP) is caused by damage to the developing brain and descending pathways, leading to altered patterns of growth and development. Those with CP may encounter early symptoms of paresis and spasticity, leading to progressive secondary musculoskeletal complications, including increased muscle atrophy and abnormal growth of contractile and non-contractile tissue. This causes significant weakness of the muscle and compromises daily motor function, leading to substantial declines in activities of daily living and independence. As such, interventions aimed at increasing muscle mass or preventing muscle atrophy for those with CP must be established. It is well established that dietary protein ingestion stimulates protein synthesis and inhibits proteolytic pathways, resulting in a positive protein balance and net muscle mass gain. In particular, leucine (a branched chain amino acid; BCAA), has been used to facilitate protein synthesis and muscle growth. Leucine also has anti-inflammatory roles, some of which are central in origin and have been shown to effect mood and features of wellbeing. However, there has been no investigation of the effects of leucine supplementation on any of these parameters in CP. Therefore, the purpose of this study is to assess the effects of 10-weeks leucine supplementation on muscle growth, metabolism, body composition, inflammation and wellbeing in adolescents and young adults with CP.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Leucine group | Experimental | To receive leucine on a daily basis for 10 weeks |
|
| Control group | Placebo Comparator | To receive a placebo supplement on a daily basis for 10 weeks |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Leucine | Dietary Supplement | 192 mg/kg body mass/day |
|
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| Measure | Description | Time Frame |
|---|---|---|
| Skeletal muscle volume | Change in biceps brachii volume | 10 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Resting metabolic rate | Change in resting energy expenditure and substrate metabolism | 10 weeks |
| Perceptual well-being questionnaire | Change in a composite measure of five different wellbeing sub-components |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Nicola Theis, PhD | University of Gloucestershire | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Gloucestershire | Cheltenham | Gloucestershire | GL502RH | United Kingdom | ||
| St Marys Umiversity College |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 31965179 | Derived | Theis N, Brown MA, Wood P, Waldron M. Leucine Supplementation Increases Muscle Strength and Volume, Reduces Inflammation, and Affects Wellbeing in Adults and Adolescents with Cerebral Palsy. J Nutr. 2021 Jan 4;151(1):59-64. doi: 10.1093/jn/nxaa006. |
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| ID | Term |
|---|---|
| D002547 | Cerebral Palsy |
| C562856 | Cerebral Palsy, Ataxic, Autosomal Recessive |
| ID | Term |
|---|---|
| D001925 | Brain Damage, Chronic |
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
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| ID | Term |
|---|---|
| D007930 | Leucine |
| D000596 | Amino Acids |
| ID | Term |
|---|---|
| D000597 | Amino Acids, Branched-Chain |
| D000602 | Amino Acids, Peptides, and Proteins |
| D000601 | Amino Acids, Essential |
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The study will be a randomised controlled pilot trial. Participants will complete testing at baseline and after 10 weeks.
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All parties will be masked from the intervention.
| Placebo | Dietary Supplement | A taste and calorie-matched placebo |
|
| 10 weeks |
| Systemic inflammation (C-Reactive protein; C-RP) | Change in C-RP | 10 weeks |
| Skeletal muscle strength | Change in the biceps brachii force production | 10 weeks |
| London |
| TW1 4SX |
| United Kingdom |