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MAP20071503443Effects of load carriage on heart rate, blood pressure and energy expenditure in children / Youlian Hong...[et al]The purpose of this paper was to differentiate the physiological effects of carrying different weights on children by simultaneus measurement of expired air, heart rate and blood pressure. It was hoped that the finding of this paper would help to produce guidelines on approved school bag weightEn: Ergonomics. - London and Washington. - Vol. 43, nº 6, June 2000 ; p. 717-7271. Carga física. 2. Niños. 3. Fuerza física. 4. Enfermedades respiratorias. 5. Presión arterial. 6. Salud. 7. Estudios. I. Hong, Youlian. II. Título. III. Título: Ergonomics.