Changes of the sweet taste sensitivity due to aerobic physical exercise

Wardhani, Ni Luh Putu Ayu; Irmawati, Anis; Sunariani, Jenny

doi:10.20473/j.djmkg.v44.i1.p35-38

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“…In a study comparing the taste perception between active and inactive men, Feeny et al, [ 18 ] have shown that active men perceive a greater intensity of sweet taste, especially for high concentrations of sucrose. This finding was supported by another study which showed an increase in taste sensitivity following 8 weeks of aerobic exercises in healthy males [ 16 ]. However, the findings on taste thresholds following a single bout of exercise have revealed contradictory findings.…”

Section: Discussionsupporting

confidence: 69%

“…Although the exact mechanism is yet to be elucidated, neuropathy defects and/or morphological changes of taste buds due to diabetes are postulated by studying diabetic rats [ 36 ]. However, studies carried out to assess the effect of exercises on taste perception have been limited to healthy adults [ 16 , 18 ] and restricted to the assessment of recognition [ 16 , 35 ] and detection thresholds [ 37 , 38 ]. In the present study, exercise-induced changes in taste perception were assessed in people with diabetes.…”

Section: Discussionmentioning

confidence: 99%

“…With regards to the long-term effects of aerobic exercises, increased regeneration and expression of taste receptor cells may contribute to improved responsiveness of these cells thus leading to increased sweet taste sensitivity [ 16 ]. Moreover, some investigators suggest the adipocyte hormone leptin as the link between exercises and increased sweet taste sensitivity as they have observed decreased serum leptin and sweet taste thresholds following weight loss [ 38 ].…”

Section: Discussionmentioning

confidence: 99%

“…Previous research has reported an association between physical exercise and taste perception. Aerobic exercises for 4 and 8 weeks were shown to increase the sweet taste sensitivity in healthy individuals [ 16 ]. In another study, young female swimmers were shown to perceive a sucrose solution as sweeter when compared to less active counterparts [ 17 ], Further, a recent study has reported significantly higher intensity ratings (perceived) for sucrose in active men performing more than 4 structured exercise sessions per week for 6 months compared to inactive men [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

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Impact of aerobic exercises on taste perception for sucrose in patients with type 2 diabetes mellitus; A randomized controlled trial

et al. 2022

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Background Regular exercise is a key element in the management of type 2 diabetes mellitus (T2DM). Although the importance of regular exercises on glycemic control in people with diabetes is studied extensively, evidence is lacking on its impact on sweet taste perception. Thus, the aim of this study was to determine the impact of aerobic exercises on taste perception for sucrose in people with diabetes. Methods A sample of 225 people with diabetes aged 35-60 years was assigned randomly into 3 groups; aerobic exercise, combined exercise and a control group. The outcomes of the combined exercise group is not reported. The aerobic exercise group performed brisk walking 30min/day, 4-5days/week for 6 months. The primary outcome measures were supra-threshold intensity ratings and preference for sucrose assessed at baseline, at 3 and 6 months using ‘general Labeled Magnitude Scale’ and ‘Monell 2-series-forced choice method’ respectively. Glycated haemoglobin (HbA1c) level was assessed at baseline and at 6 months to determine glycemic control. Results Aerobic exercise group showed significantly increased ratings (mm) for higher sucrose concentrations at 3 months (mean difference for 2.02M; +6.63±2.50, p=0.048 and for 0.64M; +7.26±2.76, p=0.026) and at 6 months (mean difference for 0.64M; +7.79±4.49, p= 0.044) compared to baseline and also when compared to controls (mean difference for 2.02M between baseline and 3 months; intervention: +6.63±2.50, control: -4.01±1.79, p=0.02 and between baseline and 6 months for 2.02M; intervention: +3.15±0.57, control: -7.96±0.40, p=0.022 and for 0.64M; intervention: +7.79±4.49, control: -8.98±0.99, p=0.003). A significantly reduced preference (mol/L) was seen both at 3 (mean difference; -0.03±0.02, p= 0.037) and at 6 months (mean difference; -0.05±0.12, p=0.011) compared to baseline within the intervention group. Also, a significant reduction was seen in the intervention group compared to controls at 6 months (mean difference; intervention: -0.05±0.12, control: 0.01±0.03, p=0.044). HbA1c was significantly reduced in the intervention group compared to controls at 6 months (mean difference; intervention -0.43±1.6%, control +0.33±1.8%, p=0.018). Conclusion Regular aerobic exercises increase the sweet taste sensitivity, especially for higher concentrations of sucrose and decrease sweet taste preference in people with diabetes . These alterations in sweet taste perception, are likely to contribute to a better glycemic control in people with diabetes. Trial registration This trial was registered at the Sri Lanka Clinical Trial registry on 16/12/2015. (Trial registration number- SLCTR/2015/029, https://slctr.lk/trials/slctr-2015-029).

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Section: Discussionsupporting

confidence: 69%