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Emi Kondo,Eri Takai,Hiroyuki Sagayama,Hideyuki Takahashi 한국운동영양학회 2023 Physical Activity and Nutrition (Phys Act Nutr) Vol.27 No.1
[Purpose] Muscle glycogen storage before a race is necessary for endurance athletes to achieve the best performance. Generally, the recommended carbohydrate intake for preparation over 90 min of the race is 10–12 g·kg-1·day-1. However, it remains unclear whether an elite athlete with an already high-carbohydrate diet can further increase muscle glycogen through a very-high-carbohydrate intake. Therefore, we compared the effects of three types of glycogen loading in a 28-year-old male athlete who belongs to the top 50 racewalkers in the world, consuming a daily energy intake of 4507 kcal and a carbohydrate intake of 12.7 g·kg-1·day-1. [Methods] The racewalker consumed very-high-carbohydrate diets three times for 2 days each, 13.7 g·kg-1·day-1 for trial 1, 13.9 g·kg-1·day-1 for trial 2, and 15.9 g·kg-1·day-1 for trial 3. Muscle glycogen concentrations in the anterior (vastus lateralis and vastus intermedius) and posterior thighs (semimembranosus, semitendinosus, and biceps femoris) were measured using carbon-13 magnetic resonance spectroscopy. [Results] Muscle glycogen concentrations in both the anterior and posterior thighs increased in all trials, particularly in trial 3. Body mass also increased by 1.5 kg in trials 1 and 2 and by 1.8 kg in trial 3 before and after the trials. The participant felt satiated throughout the day and experienced stomach discomfort during trial 3. [Conclusion] We found that a 2-day very-high-carbohydrate diet and tapering of training could further increase the muscle glycogen concentration in athletes. However, we speculated that 15.9 g·kg-1·day-1 carbohydrate intake was unrealistic for the actual pre-race diet.
The Study of Chiropractic Care on Improving the Posture of Senior Citizens
Ono Shizuko,Kuno Naoko,SoonJeong Jeong,Kondo Emi 보완대체의학연구소 2011 Research Journal of Complementary and Alternative Vol.- No.2
The average life expectancy in Japan has increased. Senior citizens with excessive curvature in the thoracic spine (kyphosis) and forward head posture have decreased their ability to maintain their balance and this can be one of the causes of falling down by accidents. In many cases, postures and health conditions including quality of life of senior citizens have remarkably improved through daily chiropractic treatment. Chiropractic care can be a good model to show how preventive medicine can benefit senior citizens. This study will show the postures of elderly people of 60 years or more improved with chiropractic treatments and care. Measurements of head tilt and knee tilt on lateral views were documented for comparisons. The results showed an overall increase in height of a patient due to a decrease of head and knee tilt.