Imagen de Portada

Adipokine Responses to Exercise Repeated on Successive Days in Men with Metabolic Syndrome.

Leptin and adiponectin are two insulin-sensitizing adipokines that may be influenced transiently by exercise and contribute to the post-exercise improvement in insulin-mediated glucose uptake. The influence of exercise on these adipokines is inconsistent and confounded by a variety of factors....

Descripción completa

Autor Principal: Ramírez Araya, Felipe
Formato: Tesis
Idioma: Inglés
Publicado: F. Araya. 2014
Materias:
QUINESIOLOGÍA
METABOLISMO ENERGÉTICO
EJERCICIO FÍSICO
Acceso en línea: http://hdl.handle.net/11056/11373
id RepoUNACR11373
recordtype dspace
spelling RepoUNACR113732022-07-20T14:31:08Z Adipokine Responses to Exercise Repeated on Successive Days in Men with Metabolic Syndrome. Ramírez Araya, Felipe QUINESIOLOGÍA METABOLISMO ENERGÉTICO EJERCICIO FÍSICO Leptin and adiponectin are two insulin-sensitizing adipokines that may be influenced transiently by exercise and contribute to the post-exercise improvement in insulin-mediated glucose uptake. The influence of exercise on these adipokines is inconsistent and confounded by a variety of factors. Therefore, the purpose of this study was to characterize the temporal responses of adipokines to repeated exercise bouts in successive days in obese males with metabolic syndrome and their relationship with markers of insulin resistance. Exercise sessions were completed by expending 350 kcals of energy, walking on a treadmill at 60 to 70% of V. O2 max, on each of four successive days. Blood samples from eleven middle-aged men (Age: 50  8.0 years, BMI = 32.0  4.6 kg/m2 , % Fat = 29  4.0 (% of body weight), VO2max = 28.9  4.3 ml. kg.-1min-1, SBP = 140 ± 8.6 mmHg, DBP = 92 ± 6.3 mmHg, triglyceride = 267 ± 145.0 mg/dL, HDL-C = 32 ± 5.0 mg/dL, glucose = 99.6 ± 12.8 mg/dL) were obtained before each exercise session and obtained again at 24 and 72 hours after the last exercise bout. Changes in plasma volume-adjusted total and HMW adiponectin, leptin, NEFA, glucose and insulin were determined using multiple 1 x 6 repeated-measures ANOVAs. Insulin concentrations decreased 26% with a single bout of exercise. Leptin decreased 9% after two exercise sessions and remained lower up to 24 hours following the last exercise session. NEFA, glucose, the HOMA score, adiponectin and HMW adiponectin remained unaltered with exercise. The accumulated effect of multiple bouts of exercise in leptin concentrations was greater than the effect obtained from two exercise bouts but not related to changes in insulin concentrations or the HOMA score. Leptin changes following exercise may contribute to lower insulin resistance following exercise but is not necessary for the reduced insulin resistance observed after exercise. 2014-05-05T20:07:32Z 2015-06-10T23:14:59Z 2015-07-29T14:48:14Z 2014-05-05T20:07:32Z 2015-06-10T23:14:59Z 2015-07-29T14:48:14Z 2010 http://purl.org/coar/resource_type/c_1843 Ramírez Araya, F. (2010). Adipokine Responses to Exercise Repeated on Successive Days in Men with Metabolic Syndrome. Universidad Nacional de Costa Rica. http://hdl.handle.net/11056/11373 en TESIS 572.43 A663A application/pdf application/pdf F. Araya.
institution Universidad Nacional de Costa Rica
collection Repositorio UNA-Costa Rica
language Inglés
topic QUINESIOLOGÍA
METABOLISMO ENERGÉTICO
EJERCICIO FÍSICO
spellingShingle QUINESIOLOGÍA
METABOLISMO ENERGÉTICO
EJERCICIO FÍSICO
Ramírez Araya, Felipe
Adipokine Responses to Exercise Repeated on Successive Days in Men with Metabolic Syndrome.
description Leptin and adiponectin are two insulin-sensitizing adipokines that may be influenced transiently by exercise and contribute to the post-exercise improvement in insulin-mediated glucose uptake. The influence of exercise on these adipokines is inconsistent and confounded by a variety of factors. Therefore, the purpose of this study was to characterize the temporal responses of adipokines to repeated exercise bouts in successive days in obese males with metabolic syndrome and their relationship with markers of insulin resistance. Exercise sessions were completed by expending 350 kcals of energy, walking on a treadmill at 60 to 70% of V. O2 max, on each of four successive days. Blood samples from eleven middle-aged men (Age: 50  8.0 years, BMI = 32.0  4.6 kg/m2 , % Fat = 29  4.0 (% of body weight), VO2max = 28.9  4.3 ml. kg.-1min-1, SBP = 140 ± 8.6 mmHg, DBP = 92 ± 6.3 mmHg, triglyceride = 267 ± 145.0 mg/dL, HDL-C = 32 ± 5.0 mg/dL, glucose = 99.6 ± 12.8 mg/dL) were obtained before each exercise session and obtained again at 24 and 72 hours after the last exercise bout. Changes in plasma volume-adjusted total and HMW adiponectin, leptin, NEFA, glucose and insulin were determined using multiple 1 x 6 repeated-measures ANOVAs. Insulin concentrations decreased 26% with a single bout of exercise. Leptin decreased 9% after two exercise sessions and remained lower up to 24 hours following the last exercise session. NEFA, glucose, the HOMA score, adiponectin and HMW adiponectin remained unaltered with exercise. The accumulated effect of multiple bouts of exercise in leptin concentrations was greater than the effect obtained from two exercise bouts but not related to changes in insulin concentrations or the HOMA score. Leptin changes following exercise may contribute to lower insulin resistance following exercise but is not necessary for the reduced insulin resistance observed after exercise.
format Tesis
author Ramírez Araya, Felipe
author_sort Ramírez Araya, Felipe
title Adipokine Responses to Exercise Repeated on Successive Days in Men with Metabolic Syndrome.
title_short Adipokine Responses to Exercise Repeated on Successive Days in Men with Metabolic Syndrome.
title_full Adipokine Responses to Exercise Repeated on Successive Days in Men with Metabolic Syndrome.
title_fullStr Adipokine Responses to Exercise Repeated on Successive Days in Men with Metabolic Syndrome.
title_full_unstemmed Adipokine Responses to Exercise Repeated on Successive Days in Men with Metabolic Syndrome.
title_sort adipokine responses to exercise repeated on successive days in men with metabolic syndrome.
publisher F. Araya.
publishDate 2014
url http://hdl.handle.net/11056/11373
_version_ 1796095848040366080
score 12.041648

Ejemplares similares