Creatine and β-hydroxy-β-methylbutyrate (HMB) additively increase lean body mass and muscle strength during a weight-training program

The posttraumatic response to burn injury leads to marked and prolonged skeletal muscle catabolism and weakness, which persist despite standard rehabilitation programs of occupational and physical therapy. We investigated whether a resistance exercise program would attenuate muscle loss and weakness that is typically found in children with thermal injury. We assessed the changes in leg muscle strength and lean body mass in severely burned children with >40% total body surface area burned. Patients were randomized to a 12-wk standard hospital rehabilitation program supplemented with an exercise training program ( n = 19) or to a home-based rehabilitation program without exercise ( n = 16). Leg muscle strength was assessed before and after the 12-wk rehabilitation or training program at an isokinetic speed of 150°/s. Lean body mass was assessed using dual-energy X-ray absorptiometry. We found that the participation in a resistance exercise program results in a significant improvement in muscle strength, power, and lean body mass relative to a standard rehabilitation program without exercise.

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Efficacy of a novel formulation of L-Carnitine, creatine, and leucine on lean body mass and functional muscle strength in healthy older adults: a randomized, double-blind placebo-controlled study

Nutrition & Metabolism ◽

10.1186/s12986-016-0158-y ◽

2017 ◽

Vol 14 (1) ◽

Cited By ~ 24

Author(s):

Malkanthi Evans ◽

Najla Guthrie ◽

John Pezzullo ◽

Toran Sanli ◽

Roger A. Fielding ◽

...

Keyword(s):

Older Adults ◽

Muscle Strength ◽

Lean Body Mass ◽

Body Mass ◽

Controlled Study ◽

Double Blind ◽

Healthy Older Adults ◽

Double Blind Placebo

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DIETARY INDUCED WEIGHT LOSS RESULTS IN SLIGHT LEAN BODY MASS LOSS EVEN WITH HEAVY WEIGHT TRAINING

Medicine & Science in Sports & Exercise ◽

10.1249/00005768-198504000-00276 ◽

1985 ◽

Vol 17 (2) ◽

pp. 243 ◽

Cited By ~ 3

Author(s):

D. L. Ballor ◽

V. L. Katch ◽

C. P. Moorehead ◽

M. D. Becque ◽

C. R. Marks

Keyword(s):

Weight Loss ◽

Mass Loss ◽

Lean Body Mass ◽

Body Mass ◽

Weight Training ◽

Body Mass Loss ◽

Heavy Weight

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The Influence of Lean Body Mass and Leg Muscle Strength on 6-Minute Walk Test Performance in Children with Cystic Fibrosis

Cardiopulmonary Physical Therapy Journal ◽

10.1097/01823246-200516030-00002 ◽

2005 ◽

Vol 16 (3) ◽

pp. 5-9 ◽

Cited By ~ 3

Author(s):

Anne K. Swisher ◽

Linda Baer ◽

Kathryn Moffett ◽

Rachel Yeater

Keyword(s):

Cystic Fibrosis ◽

Muscle Strength ◽

Lean Body Mass ◽

Body Mass ◽

Test Performance ◽

Walk Test ◽

Leg Muscle ◽

6 Minute Walk Test ◽

Minute Walk

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Muscle Strength, Body Composition, and Performance of an Elite Shot-Putter

International Journal of Sports Physiology and Performance ◽

10.1123/ijspp.7.4.394 ◽

2012 ◽

Vol 7 (4) ◽

pp. 394-396 ◽

Cited By ~ 11

Author(s):

Gerasimos Terzis ◽

Thomas Kyriazis ◽

Giorgos Karampatsos ◽

Giorgos Georgiadis

Keyword(s):

Body Composition ◽

Muscle Strength ◽

Lean Body Mass ◽

Body Mass ◽

Bench Press ◽

Scientific Data ◽

The Body ◽

Mineral Density ◽

Repetition Maximum ◽

Shot Put

Purpose:Although muscle mass and strength are thought to be closely related to throwing performance, there are few scientific data about these parameters in elite shot-putters. The purpose of this case report was to present longitudinal data for muscle strength and body composition in relation to performance of an elite male shot-putter.Methods:A male national champion with the best rotational shot-put performance of 20.36 m (in 2010) was followed from 2003 to 2011 (current age: 29 y). Data regarding body composition (dual X-ray absorptiometry), as well as 1-repetition-maximum muscle strength (bench press, squat, snatch) and rotational shot-put performance, were collected every February for the last 9 y, 4 wk before the national indoor championship event.Results:The athlete’s personal-best performances in squat, bench press, and snatch were 175 kg, 210 kg, and 112.5 kg, respectively. His peak total lean body mass was 92.4 kg, bone mineral density 1.55 g/cm2, and lowest body fat 12.9%. His shot-put performance over these 9 years was significantly correlated with 1-repetition-maximum squat strength (r = .93, P < .01), bench press (r = .87, P < .01), and snatch (r = .92, P < .01). In contrast, shot-put performance was not significantly correlated with any of the body-composition parameters.Conclusions:The results of this case study suggest that elite rotational shot-put performance may not be directly correlated with lean body mass. Instead, it seems that it is closely related with measures of muscle strength.

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Reduced Appendicular Lean Body Mass, Muscle Strength, and Size of Type II Muscle Fibers in Patients with Spondyloarthritis versus Healthy Controls: A Cross-Sectional Study

The Scientific World JOURNAL ◽

10.1155/2016/6507692 ◽

2016 ◽

Vol 2016 ◽

pp. 1-11 ◽

Cited By ~ 3

Author(s):

Kristine Røren Nordén ◽

Hanne Dagfinrud ◽

Amund Løvstad ◽

Truls Raastad

Keyword(s):

Body Composition ◽

Muscle Strength ◽

Lean Body Mass ◽

Body Mass ◽

Muscle Fibers ◽

Type I ◽

Healthy Controls ◽

Type Ii ◽

Mineral Density ◽

Cross Sectional

Introduction. The purpose of this study was to investigate body composition, muscle function, and muscle morphology in patients with spondyloarthritis (SpA).Methods. Ten male SpA patients (mean ± SD age39±4.1years) were compared with ten healthy controls matched for sex, age, body mass index, and self-reported level of physical exercise. Body composition was measured by dual energy X-ray absorptiometry. Musculus quadriceps femoris (QF) strength was assessed by maximal isometric contractions prior to test of muscular endurance. Magnetic resonance imaging of QF was used to measure muscle size and calculate specific muscle strength. Percutaneous needle biopsy samples were taken fromm. vastus lateralis.Results. SpA patients presented with significantly lower appendicular lean body mass (LBM) (p=0.02), but there was no difference in bone mineral density, fat mass, or total LBM. Absolute QF strength was significantly lower in SpA patients (p=0.03) with a parallel trend for specific strength (p=0.08). Biopsy samples from the SpA patients revealed significantly smaller cross-sectional area (CSA) of type II muscle fibers (p=0.04), but no difference in CSA type I fibers.Conclusions. Results indicate that the presence of SpA disease is associated with reduced appendicular LBM, muscle strength, and type II fiber CSA.

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