Optimal retraining time for regaining functional fitness using multicomponent training after long-term detraining in older adults.
OBJECTIVES
Little is known about the optimal retraining time for regaining functional fitness through multicomponent training following long-term detraining in older adults. This study first investigated the time course of functional fitness changes during 12-month multicomponent training, 12-month detraining, and 9-month retraining in 18 older adults (68.33±3.46) and then determined the optimal retraining time for regaining the post-training functional fitness level after a 12-month detraining period.


METHODS
Functional fitness, including lower and upper limb strength, lower and upper limb flexibility, aerobic endurance, and dynamic balance, was assessed at baseline, 12 months post-training, 12 months post-detraining, and 3, 6, and 9 months post-retraining.


RESULTS
There were significant increases in all of the functional fitness components except upper limb flexibility at post-training and no significant decreases at post-detraining. For lower and upper limb strength and lower limb flexibility, a 3-month period was required to regain the post-training condition. For aerobic endurance and dynamic balance, a retraining period ≥9months was necessary to regain the post-training functional fitness condition.


CONCLUSIONS
To regain the post-training condition of all functional fitness components, a retraining period ≥9months was required. This information might be useful for health professionals to encourage older adults not to interrupt retraining until they regain their post-training functional fitness condition.
['Lee|Minyoung|M|', 'Lim|Taehyun|T|', 'Lee|Jaehyuk|J|', 'Kim|Kimyeong|K|', 'Yoon|BumChul|B|']
D000368:Aged D000375:Aging D015444:Exercise D005081:Exercise Therapy D005260:Female D006801:Humans D008297:Male D053580:Muscle Strength D010809:Physical Fitness D016059:Range of Motion, Articular D056910:Republic of Korea D055070:Resistance Training D013997:Time Factors
Retraining Functional fitness Multicomponent training Detraining Older adults