Effects of 12 Weeks High-Speed Elastic Band Training on Cognitive Function, Physical Performance and Muscle Strength in Older Women with Mild Cognitive Impairment: A Randomized Controlled Trial

Abstract

Background: Exercise has shown to slow down the progression from mild cognitive impairment (MCI) to dementia. In particular, not only resistance exercise has been verified to improve physical performance and muscle strength, leading to the prevention of fall-related injuries in the frail elderly, but also cognitive function. In this study, we investigated how high-speed elastic band training, applied using a high-speed power training protocol, affects cognition, physical performance and muscle strength of female elderly individuals with MCI. Methods: Thirty-nine subjects diagnosed with MCI from one senior college using a Korean version of mini-mental state examination (MMSE-K) and a Korean version of the Montreal Cognitive Assessment (MoCA-K) were randomly divided into exercise group (n=20) and control group (n=19). The exercise group completed a 12-week high-speed resistance elastic band exercise program and was encouraged to exercise at home as well during the intervention period. Results:The results showed significant increases in cognitive function, physical performance and muscle strength assessed by digit span forward test (P<0.001), digit span backward test (P=0.003), the Stroop test B (P=0.031), SPPB scores (P=0.010), right knee 60° extensor peak torque (P=0.004), 60° flexor peak torque (P=0.001), 180° extensor peak torque (P=0.020) and grip strength (P=0.025) Conclusions: Our study showed that participants with MCI who continued the high-speed elastic band training program for 12 weeks showed improvements in cognitive function, physical performance and muscle strength.

Effects of exercise interventions for specific cognitive domains in old adults with mild cognitive impairment

“…All trials were considered to be at low risk of bias regarding the MCI diagnostic criteria and provided detailed reasons justifying use of this term. Ten records [ 39 – 42 , 44 , 45 – 49 ] provided detailed reasons for similar baseline values, but 1 study [ 43 ] was unclear about this term. We considered 8 trials [ 39 – 42 , 46 – 48 ] to be at low risk of bias for sequence generation.…”

“…Four trials [ 39 , 41 , 45 , 48 ] did not describe allocation concealment. The remaining 7 trials [ 40 , 42 – 44 , 46 , 47 , 49 ] described relevant methods. In all eleven included trials, blinding of the participants and trainers was not feasible.…”

“…This may have introduced bias in participants, so all eleven trials were judged to be at high risk of blinding of the participants. We judged 2 trials [ 43 , 44 ] to be at high risk of bias for blinding of the assessors for the cognitive outcomes because methods regarding the assessment of cognition were not provided. The other 9 trials [ 39 – 42 , 45 – 49 ] provided detailed information for this process, so we considered the studies to have a low risk of bias.…”

“…The other 9 trials [ 39 – 42 , 45 – 49 ] provided detailed information for this process, so we considered the studies to have a low risk of bias. Four trials [ 40 , 42 , 44 , 49 ] were judged to be at high risk of bias for addressing incomplete data, based on the dropout being more than 15%, which we considered incomplete data. [ 36 ] Another 7 trials [ 39 , 41 , 43 , 45 – 48 ] were judged to be at low risk of bias for this item.…”

Practical Application of Resistance Exercise for Prevention of Sarcopenia

“…트레이닝 방법이 소개되었으며 84) , 탄력밴드를 이용한 고속 파 워 트레이닝은 근파워와 기능을 개선시키고 85) , 기존 고중량 운동에 비해 부상 위험을 줄일 수 있으며 84) , 노인들의 신체수 행력 증진에 안전하고 효과적인 방법으로 제시되고 있다 85) . .…”