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Gylling AT, Bloch-Ibenfeldt M, Eriksen CS, Ziegler AK, Wimmelmann CL, Baekgaard M, Boraxbekk CJ, Siebner HR, Mortensen EL, Kjaer M. Maintenance of muscle strength following a one-year resistance training program in older adults. Exp Gerontol 2020; 139:111049. [PMID: 32781112 DOI: 10.1016/j.exger.2020.111049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/06/2020] [Accepted: 07/30/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Muscle mass, strength and function declines with advancing age. Strength training (ST) improves these parameters in older adults, but the gains often disappear after completion of a short-term intervention. The purpose of the present study was to investigate muscle mass, -strength and -function one year after the completion of a successful long-term (12 months) supervised ST program in older adults. METHOD Men and women (n = 419, age: 62-70 years) completed one year of supervised heavy resistance training (HRT, n = 143) or moderate intensity resistance training (MIT, n = 144) and were compared to a non-exercising control group (CON, n = 132). At 1-year follow-up, 398 participants returned for measurements of muscle power, -strength and -mass, physical function, body composition, hippocampus volume and physical/mental well-being. The results were compared to pre-training (baseline) and post-training (1-year) values. Further, the participants from the two previous training groups (HRT + MIT, n = 265) were divided into 1) those who on their own continued the ST program (>9 months) the year after completion of the supervised ST program (CONTIN, n = 65) and 2) those who stopped during the follow-up year (<9 months) (STOP, n = 200). RESULTS Out of all the improvements obtained after the 1-year training intervention, only knee extensor muscle strength in HRT was preserved at 1-year follow-up (p < 0.0001), where muscle strength was 7% higher than baseline. Additionally, the decrease in muscle strength over the second year was lower in CONTIN than in STOP with decreases of 1% and 6%, respectively (p < 0.05). Only in CONTIN was the muscle strength still higher at 1-year follow-up compared with baseline with a 14% increase (p < 0.0001). The heavy strength training induced increase in whole-body lean mass was erased at 1-year follow-up. However, there was a tendency for maintenance of the cross-sectional area of m. vastus lateralis from baseline to 1-year follow-up in HRT compared with CON (p = 0.06). Waist circumference decreased further over the second year in CONTIN, whereas it increased in STOP (p < 0.05). CONCLUSION Even though long-term strength training effectively improved muscle function and other health parameters in older adults, only knee extensor muscle strength was preserved one year after completion of heavy (but not moderate intensity) resistance training. Continuation of strength training resulted in better maintenance of muscle strength and health, which indicates that it is required to continue with physical activity to benefit from the long-term effects of strength training upon muscle function and health in older men and women.
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Affiliation(s)
- Anne Theil Gylling
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Center for Translational Research, Bispebjerg and Frederiksberg Hospital, Nielsine Nielsensvej 11, 2400 Copenhagen NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark.
| | - Mads Bloch-Ibenfeldt
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Center for Translational Research, Bispebjerg and Frederiksberg Hospital, Nielsine Nielsensvej 11, 2400 Copenhagen NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Christian Skou Eriksen
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Center for Translational Research, Bispebjerg and Frederiksberg Hospital, Nielsine Nielsensvej 11, 2400 Copenhagen NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Andreas Kraag Ziegler
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Center for Translational Research, Bispebjerg and Frederiksberg Hospital, Nielsine Nielsensvej 11, 2400 Copenhagen NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Cathrine Lawaetz Wimmelmann
- Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark; Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen K, Denmark
| | - Maria Baekgaard
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Center for Translational Research, Bispebjerg and Frederiksberg Hospital, Nielsine Nielsensvej 11, 2400 Copenhagen NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Carl-Johan Boraxbekk
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Center for Translational Research, Bispebjerg and Frederiksberg Hospital, Nielsine Nielsensvej 11, 2400 Copenhagen NV, Denmark; Danish Research Center for Magnetic Resonance, Center for Functional and Diagnostic Imaging and Research, Copenhagen University Hvidovre Hospital, Kettegaard Allé 30, 2650 Hvidovre, Denmark; Department of Radiation Sciences, Umeå University, S-901 87 Umeå, Sweden
| | - Hartwig Roman Siebner
- Danish Research Center for Magnetic Resonance, Center for Functional and Diagnostic Imaging and Research, Copenhagen University Hvidovre Hospital, Kettegaard Allé 30, 2650 Hvidovre, Denmark; Department of Neurology, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen NV, Denmark
| | - Erik Lykke Mortensen
- Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark; Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen K, Denmark
| | - Michael Kjaer
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Center for Translational Research, Bispebjerg and Frederiksberg Hospital, Nielsine Nielsensvej 11, 2400 Copenhagen NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
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Gylling AT, Eriksen CS, Garde E, Wimmelmann CL, Reislev NL, Bieler T, Ziegler AK, Andersen KW, Bauer C, Dideriksen K, Baekgaard M, Mertz KH, Bayer ML, Bloch-Ibenfeldt M, Boraxbekk CJ, Siebner HR, Mortensen EL, Kjaer M. The influence of prolonged strength training upon muscle and fat in healthy and chronically diseased older adults. Exp Gerontol 2020; 136:110939. [PMID: 32277977 DOI: 10.1016/j.exger.2020.110939] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 03/10/2020] [Accepted: 03/26/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Physical muscle function and brain hippocampus size declines with age, accelerating after the age of 60. Strength training over a few months improves physical function, but less is known about how long-term strength training affects physical function and hippocampus volume. Therefore, we aimed to investigate the effect of 1-year strength training of two different intensities upon muscle mass, function, and hippocampus volume in retirement-age individuals. METHODS In this multidisciplinary randomized controlled trial (clinicaltrials.gov: NCT02123641), participants were allocated to either a) supervised, heavy resistance training (HRT, n = 149, 3/wk), b) moderate intensity resistance training (MIT, n = 154, 3/wk) or c) non-exercise activities (CON, n = 148). 451 participants were randomized (62-70 yrs., women 61%, ≈80% with a chronic medical disease) and 419 were included in the intention-to-treat analysis (n = 143, 144 and 132; HRT, MIT and CON). Changes in muscle power (primary outcome), strength and size, physical function, body composition, hippocampus volume and physical/mental well-being were analyzed. FINDINGS Of the participants (HRT + MIT), 83% completed training at least 2/week. Leg extensor power was unchanged in all groups, but strength training had a positive effect on isometric knee extensor strength in both groups, whereas an increased muscle mass, cross-sectional area of vastus lateralis muscle, a decreased whole-body fat percentage, visceral fat content and an improved mental health (SF-36) occurred in HRT only. Further, chair-stand performance improved in all groups, whereas hippocampus volume decreased in all groups over time with no influence of strength training. INTERPRETATION Together, the results indicate that leg extensor power did not respond to long-term supervised strength training, but this type of training in a mixed group of healthy and chronically diseased elderly individuals can be implemented with good compliance and induces consistent changes in physiological parameters of muscle strength, muscle mass and abdominal fat.
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Affiliation(s)
- Anne Theil Gylling
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Centre for Translational Research, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark.
| | - Christian Skou Eriksen
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Centre for Translational Research, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark
| | - Ellen Garde
- Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark; Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hvidovre Hospital, Kettegaard Allé 30, DK-2650 Hvidovre, Denmark; Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen K, Denmark
| | - Cathrine Lawaetz Wimmelmann
- Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark; Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen K, Denmark
| | - Nina Linde Reislev
- Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark; Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hvidovre Hospital, Kettegaard Allé 30, DK-2650 Hvidovre, Denmark
| | - Theresa Bieler
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Centre for Translational Research, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark; Department of Physical and Occupational Therapy, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark
| | - Andreas Kraag Ziegler
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Centre for Translational Research, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark
| | - Kasper Winther Andersen
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hvidovre Hospital, Kettegaard Allé 30, DK-2650 Hvidovre, Denmark
| | - Christian Bauer
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hvidovre Hospital, Kettegaard Allé 30, DK-2650 Hvidovre, Denmark; Department of Technology, University College Copenhagen, Sigurdsgade 26, 2200 Copenhagen N, Denmark
| | - Kasper Dideriksen
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Centre for Translational Research, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark
| | - Maria Baekgaard
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Centre for Translational Research, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark
| | - Kenneth Hudlebusch Mertz
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Centre for Translational Research, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark
| | - Monika Lucia Bayer
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Centre for Translational Research, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark
| | - Mads Bloch-Ibenfeldt
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Centre for Translational Research, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark
| | - Carl-Johan Boraxbekk
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Centre for Translational Research, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark; Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hvidovre Hospital, Kettegaard Allé 30, DK-2650 Hvidovre, Denmark; Department of Radiation Sciences, Umeå University, S-901 87 Umeå, Sweden
| | - Hartwig Roman Siebner
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hvidovre Hospital, Kettegaard Allé 30, DK-2650 Hvidovre, Denmark; Department of Neurology, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark
| | - Erik Lykke Mortensen
- Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark; Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen K, Denmark
| | - Michael Kjaer
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M81 and Centre for Translational Research, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen, NV, Denmark; Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, N, Denmark
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