On the contrary , the largest study of this review did not demonstrate any adverse effect of  DM on MWD and FWD after SET .
In conclusion , the data evaluating the effects of DM on SET were inadequate to determine if DM impairs the exercise response .
Some believe that certain patients with intermittent claudication may be unsuitable for supervised exercise therapy ( SET ) , based on the presence of comorbidities and the possibly increased risks .
We conducted a systematic review ( MEDLINE , EMBASE and CENTRAL ) to summarize evidence on the potential influence of diabetes mellitus ( DM ) on the response to SET .
Diabetes status differentiates endothelial function and plasma nitrite response to exercise stress in peripheral arterial disease following supervised training.
AIMS To determine if type 2 diabetes mellitus ( T2D ) differentiates endothelial function and plasma nitrite response ( a marker of nitric oxide bioavailability ) during exercise in peripheral arterial disease ( PAD ) subjects prior to and following 3 months supervised exercise training ( SET ) . METHODS In subjects with T2D+PAD ( n = 13 ) and PAD-only ( n = 14 ) , endothelial function was measured using brachial artery flow-mediated dilation . On a separate day , venous blood draws were performed at rest and 10 min following a symptom-limited grade d treadmill test ( SL-GXT ) . Plasma sample s were snap-frozen for analysis of nitrite by reductive chemiluminescence . All testing was repeated following 3 months of SET . RESULTS Prior to training both groups demonstrated endothelial dysfunction , which was correlated with a net decrease in plasma nitrite following a SL-GXT ( p ≤ 0.05 ) . Following SET , the PAD-only group demonstrated an improvement in endothelial function ( p ≤ 0.05 ) and COT ( p ≤ 0.05 ) , which was related to a net increase in plasma nitrite following the SL-GXT ( both p ≤ 0.05 ) . The T2D+PAD group had none of these increases . CONCLUSIONS T2D in the presence of PAD attenuated improvements in endothelial function , net plasma nitrite , and COT following SET . This suggests that T2D maybe associated with an inability to endogenously increase vascular NO bioavailability to SET
On the contrary , the largest study of this review did not demonstrate any adverse effect of  DM on MWD and FWD after SET .
In conclusion , the data evaluating the effects of DM on SET were inadequate to determine if DM impairs the exercise response .
Some believe that certain patients with intermittent claudication may be unsuitable for supervised exercise therapy ( SET ) , based on the presence of comorbidities and the possibly increased risks .
We conducted a systematic review ( MEDLINE , EMBASE and CENTRAL ) to summarize evidence on the potential influence of diabetes mellitus ( DM ) on the response to SET .