Inertial Training Improves Strength, Balance, and Gait Speed in Elderly Nursing Home Residents
Authors Naczk M, Marszalek S, Naczk A
Received 26 October 2019
Accepted for publication 20 December 2019
Published 7 February 2020 Volume 2020:15 Pages 177—184
Checked for plagiarism Yes
Review by Single-blind
Peer reviewer comments 2
Editor who approved publication: Dr Richard Walker
Mariusz Naczk,1 Slawomir Marszalek,2 Alicja Naczk3
1Institute of Health Sciences, Collegium Medicum, University of Zielona Gora, Zielona Gora, Poland; 2Department of Physiotherapy, Poznan University of Medical Sciences, Poznan, Poland; 3Department of Physical Education and Sport, Faculty of Physical Culture in Gorzow Wielkopolski, University School of Physical Education in Poznan, Gorzow Wielkopolski, Poland
Correspondence: Mariusz Naczk
Institute of Health Sciences, Collegium Medicum, University of Zielona Gora, 28 Zyty St., Zielona Gora 65-046, Poland
Tel/Fax +48 68 328 31 05
Purpose: The aim of the study was to evaluate the impact of inertial training on upper and lower extremity strength in the elderly. The study also assessed the influence of inertial training on their independence, balance, and speed and quality of gait.
Methods: Twenty physically inactive older residents of a nursing home (6 women and 14 men; age, 76.7 ± 8.77 years) were randomized to a training (T; n = 10) or control group (C; n = 10). The T group performed inertial training twice a week for 6 weeks using a Cyklotren inertial device. Each training session included 12 exercise sets involving the elbow and knee flexor and extensor muscles (3 sets per single muscle group). The training loads were 10 and 20 kg for the upper and lower extremities, respectively. Before and after training, the maximum force of trained muscles was evaluated under training conditions. Functional tests were also completed.
Results: Participants from the T group had significantly increased (37.1– 69.1%) elbow and knee flexor and extensor muscle strength. Improvement in upper and lower limb strength in non-specific conditions was also noted; 23.3% and 40.6%, respectively. Functional abilities improved significantly in the T group (Tinetti balance test: 29%, Tinetti gait tests: 18.6%, and gait speed (8-Foot Up-and-Go): 12.8%), while remaining unchanged in C.
Conclusion: We strongly recommend a daily routine of inertial training for older adults. Benefits from inertial training can reduce the risk of falls and increase the safety and independence of the elderly.
Keywords: strength training, elderly, balance, gait, eccentric
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