Training, Detraining, Retraining and Glycemic Control in Patients With Type 2 Diabetes
Training, Detraining and Retraining Effects on Glycemic Control and Physical Fitness in Patients With Type 2 Diabetes
- This study examine the effects of training, detraining and retraining, using a combined strength and aerobic exercise program, on physiological parameters in patients with type 2 diabetes.
- Thirteen women with type 2 diabetes followed a supervised aerobic and strength training program for 9 months, interrupted for 3 months (detraining) and resumed again for a period of 9 months (retraining).
- Training improved body mass index, fasting plasma glucose,postprandial glucose, glycosylated hemoglobin, peak oxygen consumption,power output and total muscle strength. Detraining reversed PPG, HbA1C and physical fitness parameters. Resumption of training however, improved further the initial training adaptations.
- Diabetic patients should follow a regular and uninterrupted exercise program throughout life in order to control glucose metabolism and improve health status.
Visão geral do estudo
Status
Status
Condições
Condições
Intervenção / Tratamento
Intervenção / Tratamento
Descrição detalhada
During the last decades, the positive effects of aerobic exercise in patients with type 2 diabetes have been well documented. Recently, resistance exercise has gained popularity in diabetic patients since several studies have indicated that this type of training is safe and induces favorable adaptations in physical fitness and metabolic profile. According to recent scientific evidence, a complete rehabilitation program for patients with type 2 diabetes should combine both strength and aerobic exercise; thus the American Diabetic Association in their latest guidelines recommends strength training as part of an exercise program at least two times a week.
On the contrary to the well documented effects of physical training, there is lack of data on the negative alterations of detraining in patients with type 2 diabetes. The partial or complete loss of training-induced adaptations as a consequence of training reduction or cessation is well-documented by several detraining studies in healthy subjects, older individuals and patients with coronary artery disease.
For example, the investigators know that even 6 days of physical inactivity reduces insulin action in well-trained runners which is attributed to the significant reduction in the muscle GLUT-4 level. Factors such as illness, injury, travel or vacation may interrupt the training process for longer periods, affecting the treatment in people with type 2 diabetes. For this population, it is important to quantify changes in physiological and metabolic parameters resulting from the cessation of exercise, since exercise training is a major therapeutic method.
To the best of our knowledge, there is no data concerning the loss of physiological adaptations which occurs after exercise cessation in patients with type 2 diabetes, which have previously trained for a long period of time. The current study evaluated the effects of three months of detraining after nine months of a combined strength and aerobic training program on glycemic control, body composition, peak oxygen consumption (VO2peak) and muscular strength in patients with type 2 diabetes. Further, the investigators examined the extent of the regained adaptations after the resumption of training for a period of nine months.
Tipo de estudo
Tipo de estudo
Inscrição (Real)
Inscrição
Estágio
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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Komotini, Grécia, 691 00
- Savvas P. Tokmakidis
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Critérios de participação
Critérios de elegibilidade
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Type 2 diabetes
- without micro- and macroangiopathy
Exclusion Criteria:
- type 1 diabetes
- cardiovascular disease,
- confirmed retinopathy/nephropathy/neuropathy,
- uncontrolled diabetes mellitus (HbA1c>10%).
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: N / D
- Modelo Intervencional: Atribuição de grupo único
- Mascaramento: Solteiro
Número de braços
Armas e Intervenções
Grupo de Participantes / BraçoGrupo de Participantes / Braço |
Intervenção / TratamentoIntervenção / Tratamento |
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Experimental: Lifestyle (exercise training)
Training, detraining and retraining
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Thirteen women with type 2 diabetes followed a supervised aerobic and strength training program for 9 months, interrupted for 3 months (detraining) and resumed again for a period of 9 months (retraining).
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O que o estudo está medindo?
Medidas de resultados primários
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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Changes from baseline in glycemic control measurements (follow-up for 21 months) at training (9 months), detraining (3 months) and retraining (9 months)
Prazo: Changes from baseline in HbA1C, FPG and PPG at training (9 months), detraining (11 months) and retraining (21 months)
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Glycemic control was evaluated by the measurement of fasting plasma glucose (FPG), postprandial glucose (PPG) and glycosylated hemoglobin (HbA1C).
PPG was calculated by the mean of four values measured at the first week of every period (baseline, 9th, 12th and 21st months).
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Changes from baseline in HbA1C, FPG and PPG at training (9 months), detraining (11 months) and retraining (21 months)
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Medidas de resultados secundários
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
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Evaluation of body composition
Prazo: Changes from baseline in body composition assessment at training (9 months), detraining (3 months), retraining (9 months)
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Anthropometric Assessment: Body weight, height, BMI and waist circumference (WC).
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Changes from baseline in body composition assessment at training (9 months), detraining (3 months), retraining (9 months)
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Peak oxygen consumption (VO2peak)
Prazo: Changes from baseline in VO2peak at training (9 months), detraining (11 months) and retraining (21 months)
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Measurement of Peak Oxygen Uptake: Patients underwent a symptom-limited graded exercise test on a cycle-ergometer (60 rpm).
The initial load was set at 25W and increased gradually by 25W every 2-min until the patients were unable to continue.
VO2peak was determined by open-circuit spirometry (E.
Jaeger, IEC 601-1, Germany).
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Changes from baseline in VO2peak at training (9 months), detraining (11 months) and retraining (21 months)
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Measurement of muscular strength in patients with type 2 diabetes
Prazo: Changes from baseline in muscular strength at training (9 months), detraining (11 months) and retraining (21 months)
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Muscle Strength: Maximum strength was measured with the one-repetition maximum (1 RM) method and total muscle strength was calculated as the sum of leg extension and bench press.
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Changes from baseline in muscular strength at training (9 months), detraining (11 months) and retraining (21 months)
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Colaboradores
Colaboradores
Investigadores
Investigadores
- Investigador principal: Savvas P. Tokmakidis, PhD, Democritus University of Thrace
Publicações e links úteis
Publicações Gerais
- Tokmakidis SP, Volaklis KA. Training and detraining effects of a combined-strength and aerobic exercise program on blood lipids in patients with coronary artery disease. J Cardiopulm Rehabil. 2003 May-Jun;23(3):193-200. doi: 10.1097/00008483-200305000-00006.
- Tokmakidis SP, Zois CE, Volaklis KA, Kotsa K, Touvra AM. The effects of a combined strength and aerobic exercise program on glucose control and insulin action in women with type 2 diabetes. Eur J Appl Physiol. 2004 Aug;92(4-5):437-42. doi: 10.1007/s00421-004-1174-6.
- Tokmakidis SP, Spassis AT, Volaklis KA. Training, detraining and retraining effects after a water-based exercise program in patients with coronary artery disease. Cardiology. 2008;111(4):257-64. doi: 10.1159/000127737. Epub 2008 Apr 23.
- American College of Sports Medicine; American Dietetic Association; Dietitians of Canada. Joint Position Statement: nutrition and athletic performance. American College of Sports Medicine, American Dietetic Association, and Dietitians of Canada. Med Sci Sports Exerc. 2000 Dec;32(12):2130-45. doi: 10.1097/00005768-200012000-00025. Erratum In: Med Sci Sports Exerc 2001 Jan;33(1):following table of contents.
- Castaneda C, Layne JE, Munoz-Orians L, Gordon PL, Walsmith J, Foldvari M, Roubenoff R, Tucker KL, Nelson ME. A randomized controlled trial of resistance exercise training to improve glycemic control in older adults with type 2 diabetes. Diabetes Care. 2002 Dec;25(12):2335-41. doi: 10.2337/diacare.25.12.2335.
- Dunstan DW, Daly RM, Owen N, Jolley D, De Courten M, Shaw J, Zimmet P. High-intensity resistance training improves glycemic control in older patients with type 2 diabetes. Diabetes Care. 2002 Oct;25(10):1729-36. doi: 10.2337/diacare.25.10.1729.
Datas de registro do estudo
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Início do estudo
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Enviado pela primeira vez
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Primeira postagem
Atualizações de registro de estudo
Última Atualização Postada (Estimativa)
Última Atualização Postada
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
Outros números de identificação do estudo
- EPEAEK - PYTHAGORAS II
- 1328-5 PYTHAGORAS II (Número de outro subsídio/financiamento: PYTHAGORAS II; co-financed by Hellenic (25%) and EC (75%))
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