A significant positive effect of the interventions on weight was reported by all study types .
The meta- analysis showed that lifestyle interventions achieved weight and waist circumference reductions after one year .
However , no clear effects on biochemical or clinical parameters were observed , possibly due to short follow-up periods or lack of power of the studies meta-analysed .
Changes in dietary parameters or physical activity were generally not reported .
Most studies assessing feasibility were supportive of implementation of lifestyle interventions in routine clinical care .
Conclusion Lifestyle interventions for patients at high risk of diabetes , delivered by a variety of healthcare providers in routine clinical setting s , are feasible but appear to be of limited clinical benefit one year after intervention .
Despite convincing evidence from structured intensive trials , this systematic review showed that translation into routine practice has less effect on diabetes risk reduction
Background The clinical effectiveness of intensive lifestyle interventions in preventing or delaying diabetes in people at high risk has been established from r and omised trials of structured , intensive interventions conducted in several countries over the past two decades .
The challenge is to translate them into routine clinical setting s. The objective of this review is to determine whether lifestyle interventions delivered to high-risk adult patients in routine clinical care setting s are feasible and effective in achieving reductions in risk factors for diabetes .
Can life-styles of subjects with impaired glucose tolerance be changed? A feasibility study.
Thirty-one subjects with impaired glucose tolerance were r and omly allocated to a group receiving advice to improve their diet and physical activity levels over 6 months ( n = 23 ) or to a control group ( n = 8) . At 6 months , 18 of the 23 subjects receiving ' healthy living ' advice  were re-examined ( five subjects had withdrawn ) . Fourteen of the 18 subjects showed an alteration in diet or an increase in exercise . The 18 subjects re-evaluated showed a reduction in systolic blood pressure ( 118 + /- 15 vs 124 + /- 15 mmHg , p less than 0.05 ) and decrease in total plasma cholesterol ( 4.5 + /- 1 vs 5.2 + /- 1 mmol l-1 , p less than 0.01 ) and LDL-cholesterol levels ( 2.8 + /- 0.9 vs 3.2 + /- 0.9 mmol l-1 , p less than 0.05 ) . Plasma glucose levels were unchanged . One subject withdrew from the control group . At 6 months , the seven control subjects examined showed no significant change in metabolic parameters , with little measurable change in diet or exercise . At 2 years , 17 of the 23 ' healthy living ' subjects were reassessed . Nine of the subjects had continued to exercise or maintained a decreased weight compared to baseline . Fasting plasma glucose levels had increased ( 6.0 + /- 1.2 vs 5.5 + /- 0.6 mmol l-1 , p less than 0.05 ) , with the only continued improvement being a reduced LDL level ( 2.8 + /- 0.7 vs 3.1 + /- 0.9 mmol l-1 , p less than 0.05 ) . At 2 years , a similar proportion of the control group were taking regular exercise compared with the ' healthy living ' group . ( ABSTRACT TRUNCATED AT 250 WORDS
A significant positive effect of the interventions on weight was reported by all study types .
The meta- analysis showed that lifestyle interventions achieved weight and waist circumference reductions after one year .
However , no clear effects on biochemical or clinical parameters were observed , possibly due to short follow-up periods or lack of power of the studies meta-analysed .
Changes in dietary parameters or physical activity were generally not reported .
Most studies assessing feasibility were supportive of implementation of lifestyle interventions in routine clinical care .
Conclusion Lifestyle interventions for patients at high risk of diabetes , delivered by a variety of healthcare providers in routine clinical setting s , are feasible but appear to be of limited clinical benefit one year after intervention .
Despite convincing evidence from structured intensive trials , this systematic review showed that translation into routine practice has less effect on diabetes risk reduction
Background The clinical effectiveness of intensive lifestyle interventions in preventing or delaying diabetes in people at high risk has been established from r and omised trials of structured , intensive interventions conducted in several countries over the past two decades .
The challenge is to translate them into routine clinical setting s. The objective of this review is to determine whether lifestyle interventions delivered to high-risk adult patients in routine clinical care setting s are feasible and effective in achieving reductions in risk factors for diabetes .