Study (first author and year) | Study Design | Study Characteristics (groups, number of participants, mean age) | MCI Diagnostic Criteria | Instrumented Functional Assessment | Instrument | Intervention | Data Collection (follow-up) | Main results in MCI |
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Doi et al. [56], 2013. | RCT. | Intervention Group: n = 25. 75.3 years old. Control Group: n = 25. 76.8 years old. | Petersen Criteria [11]. MMSE > 24 [49]. | Walking at preferred speed (11 m walkway). | Tri-axial accelerometer attached to the L3 spinous. | Intervention Group: Aerobic exercise (60% of aged predicted maximal heart rate), endurance walking, muscle strength training, postural balance retraining, and gait training (90 min, 2/ week, 6 months). Control Group: 2 Education classes about health promotion. | (T1) at baseline; (T2) six months. | ↑Gait speed ↓Stride time and ↑Stride length in both groups***. ↑HR in VT in the Intervention group***. ↑Gait speed, stride length and HR in VT in the Intervention group vs control group**. |
Donnezan et al. [57], 2018. | RCT. | PCT: n = 21. 75.2 years old. PT: n = 18. 77.1 years old. CT: n = 16. 76.3 years old. Control Group: n = 14. 79.2 years old. | Petersen Criteria [11]. | Walking speed at usual pace (6 m) in ST and DT conditions. WSC. TUG. | Electronic walkway GAITRite® (length: 4.3 m). | PT: Aerobic training on bikes (60% of aged predicted maximal heart rate). CT: Cognitive exercises (commercialized gaming software). PCT: Aerobic training on bikes (60% of aged predicted maximal heart rate) + cognitive exercises. Control Group: Maintaining their usual lifestyle. All groups: Two one-hour sessions/week,12 weeks. | (T1) at baseline; (T2) twelve weeks; (T3) six months. | ↓Time to perform the TUG***. ↑ Gait speed**. TUG improved after PT and PCT intervention***. Gait speed in ST and DT conditions improved after PCT training***. |
Schwenk et al. [58], 2016. | Pilot RCT. | Intervention: n = 12. 77.8 years old. Control: n = 10. 79.00 years old. | Petersen Criteria [11]. | Balance (to stand for 30 s with feet close together with EO and EC. Walking at usual pace and a fast pace (10 m). | Wearable sensors. | Intervention: Balance training (weight shifting and virtual obstacle crossing). Real-time visual/ audio lower-limb motion feedback provided from wearable sensors 2/week, 4 weeks). Control: No training. | (T1) at baseline; (T2) four weeks. | ↓CoM sway in both directions (AP, ML) in the intervention with EO**. |
Fogarty et al. [59], 2016. | RCT. | MIP + TTC: n = 22. 71.55 years old. MIP: n = 18. 72.61 years old. | Petersen Criteria [11]. MMSE > 24 [49]. MoCA < 26 [47]. | Walking at usual pace in ST and DT conditions. CTSIB with EO and EC. | GAITRite® Portable Walkway System. Digital Balance Platform. | TTC: Taoist Tai Chi (2/week, 90 min/session, 10 weeks). MIP: Education about lifestyle factors that impact memory and teaching of memory strategies (8 sessions). | (T1) at baseline; (T2) ten weeks; (T3) twenty-two weeks. | No significant change between groups in gait variables, the DT cost variables, or in the amount of sway on the balance measures. |
Bae et Al. [60], 2018. | RCT. | Intervention: n = 41. 75.5 years old. Control: n = 42. 76.4 years old. | Winblad Criteria [13]. MMSE > 24 [49]. | Maximum hand grip strength. Walking speed and physical activity (time spent in MVPA and step count). | Handheld dynamometer. Tri-axial accelerometer. | Intervention: Physical activities (walking, muscle strength training, stretching etc) + cognitive exercises (singing, playing a game, etc) + social activities (2/week, 90 min, 24 weeks). Control: 2 Health education classes (90 mins each, during the 24-week). | (T1) at baseline; (T2) six months. | ↓Time spent in MVPA after intervention in the control group**. ↓Step count after intervention in the control group**. Intervention Group kept baseline parameters. |
Delbroek et al. [61], 2017. | RCT. | Intervention: n = 10. 86.9 years old. Control: n = 10. 87.5 years old. | MoCa < 26 [47]. | TUG in ST and DT conditions. | Inertial measurement units on the ankles, wrists and sternum. | Intervention: Virtual reality dual-task training using the BioRescue (2/week, 18–30 min, 6 weeks). Control: No training. | (T1) at baseline; (T2) six weeks. | ↓Total time to perform the TUG in the intervention group during ST condition**. |
Liao et al. [62], 2019. | RCT. | Intervention: n = 18. 75.5 years old. Control: n = 16. 73.1 years old. | MoCa < 26 [47]. | Walking at preferred Speed in ST and DT conditions. | GAIT Up System. | Intervention: VR-based physical and cognitive training (60 min, 3/week, 12 weeks). Control: Combined physical (resistance, aerobic [50–75% heart rate] and balance exercises) and cognitive exercises. | (T1) at baseline; (T2) three months. | ↑ Gait speed and stride length in ST and DT conditions in VR group** ↑ Gait speed and cadence only in ST in Control Group** No differences between groups*. |