View clinical trials related to Elderly Men.
Filter by:Phototherapy has been largely used in rehabilitation programs due to its analgesic, antiinflammatory and healing effects. Lately, its effects of optimizing the results of resistance training on young individuals have been studied. However, there is a lack of studies on its effect on the elderly population. The objective of the present study is to verify the effect of Low-Level Laser Therapy (LLLT) on the results of resistance training in the elderly. The study will be a randomized doubled-blinded controlled trial. 30 elderly men with age ranging from 60 to 80 years will be included and randomized between Placebo Group (placebo LLLT + Resistance Training) and LLLT Group (active LLLT + Resistance Training). All volunteers will be submitted to a control period of four weeks before the beginning of the resistance training, which will have 12 weeks of duration. The assessments will be done at baseline, after the control period and after the training period. The training sessions will be performed twice a week and the training protocol will be performed with repetition maximum periodization. The LLLT will be applied before the training sessions on eight points of the quadriceps muscles, leading to a total of 240 Joules on each leg. The placebo LLLT will be applied on the same way, but with the equipment turned off. The assessments will include muscle architecture by ultrasonography, muscle strength by isokinetic dynamometer and 1 Repetition Maximum test of leg-extension and leg-press exercises, and functional capacity by the 6-Minute Walking Test, 30s Sit to Stand Test, Timed Up-and-Go Test and Stair Ascent Test.
Amino acid are the building blocks of the body's protein. Some amino acids, including leucine, cannot be made in the body and must be obtained from diet, these are called essential. With increase in age the body's muscle mass decrease and studies have suggested that dietary supplementation of leucine may have potential health benefits in elderly in regards to prevention of age related loss of lean muscle mass, and thus may help improve the quality of life in elderly. Currently, a safe upper dietary intake level of leucine has not been established for healthy elderly. Prior to exploring whether leucine supplementation will prevent or decrease loss of lean muscle mass in elderly we propose to identify the upper intake of leucine in healthy elderly. The purpose of this study is to determine the tolerable upper intake level (UL) of leucine in healthy elderly men (70 - 75 yrs) The investigators hypothesize that with a careful graded stepwise increase in leucine intake in elderly men, above the Estimated Average Requirement (EAR - 50 mg/kg/d), the body's ability to oxidize/dispose of excess amino acids will reach a maximum. With increased leucine intakes we hypothesize an increase in plasma ammonia concentrations and increases in plasma leucine and urinary leucine excretion.