Changes in Muscle Mass and Strength During Follow-Up After One-Year Resistance Training Interventions in Older Adults
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Changes in Muscle Mass and Strength During Follow-Up After One-Year Resistance Training Interventions in Older Adults. / Mertz, Kenneth H.; Reitelseder, Søren; Rasmussen, Morten A.; Bülow, Jacob; Højfeldt, Grith; Jensen, Mikkel; Hjulmand, Morten; Lindberg, Jonas; Kramer, Mathilde U.; Bechshøft, Rasmus; Holm, Lars.
In: Journal of Strength and Conditioning Research, Vol. 37, No. 10, 2023, p. 2064-2070.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Changes in Muscle Mass and Strength During Follow-Up After One-Year Resistance Training Interventions in Older Adults
AU - Mertz, Kenneth H.
AU - Reitelseder, Søren
AU - Rasmussen, Morten A.
AU - Bülow, Jacob
AU - Højfeldt, Grith
AU - Jensen, Mikkel
AU - Hjulmand, Morten
AU - Lindberg, Jonas
AU - Kramer, Mathilde U.
AU - Bechshøft, Rasmus
AU - Holm, Lars
N1 - Publisher Copyright: Copyright © 2023 National Strength and Conditioning Association.
PY - 2023
Y1 - 2023
N2 - ABSTRACT: Mertz, KH, Reitelseder, S, Rasmussen, MA, Bülow, J, Højfeldt, G, Jensen, M, Hjulmand, M, Lindberg, J, Kramer, MU, Bechshøft, R, and Holm, L. Changes in muscle mass and strength during follow-up after one-year resistance training interventions in older adults. J Strength Cond Res 37(10): 2064-2070, 2023-The aim of this study was to investigate if home-based resistance training compared with center-based resistance training was associated with better preservation of muscle mass and strength in older individuals, 6 months after the interventions ended. One hundred four healthy older individuals (>65 years) who had completed 1 year of either home-based light-intensity training with daily whey protein supplementation (LITW), center-based heavy resistance training with whey protein supplementation (HRTW), or daily whey protein supplementation alone (WHEY) returned for follow-up measurement 6 months after the interventions. Measures of muscle mass, strength, and power were assessed at the end of intervention as well as at follow-up. Furthermore, we compared changes in these parameters between subjects who continued resistance training (≥1 weekly training session) during follow-up (CONT) with those who stopped (STOP). Resistance training continuation during follow-up did not differ between HRTW and LITW (41 vs. 41%, P = 1.0) but was higher for both groups compared with WHEY (18%, P = 0.04-0.05). However, no between-group differences were observed between LITW/HRTW/WHEY in changes in muscle mass, strength, or power during follow-up. STOP was associated with a poorer preservation of quadriceps cross-sectional area compared with CONT (-1.7 cm 2 [-0.4 to -3.0], P = 0.01, effect size: 0.79). No effect of training continuation was observed on changes in muscle strength and power. In conclusion, maintenance of muscle mass and strength is not superior after home-based resistance training compared with center-based training. However, training continuation seems crucial for the maintenance of muscle mass, irrespective of the training intervention.
AB - ABSTRACT: Mertz, KH, Reitelseder, S, Rasmussen, MA, Bülow, J, Højfeldt, G, Jensen, M, Hjulmand, M, Lindberg, J, Kramer, MU, Bechshøft, R, and Holm, L. Changes in muscle mass and strength during follow-up after one-year resistance training interventions in older adults. J Strength Cond Res 37(10): 2064-2070, 2023-The aim of this study was to investigate if home-based resistance training compared with center-based resistance training was associated with better preservation of muscle mass and strength in older individuals, 6 months after the interventions ended. One hundred four healthy older individuals (>65 years) who had completed 1 year of either home-based light-intensity training with daily whey protein supplementation (LITW), center-based heavy resistance training with whey protein supplementation (HRTW), or daily whey protein supplementation alone (WHEY) returned for follow-up measurement 6 months after the interventions. Measures of muscle mass, strength, and power were assessed at the end of intervention as well as at follow-up. Furthermore, we compared changes in these parameters between subjects who continued resistance training (≥1 weekly training session) during follow-up (CONT) with those who stopped (STOP). Resistance training continuation during follow-up did not differ between HRTW and LITW (41 vs. 41%, P = 1.0) but was higher for both groups compared with WHEY (18%, P = 0.04-0.05). However, no between-group differences were observed between LITW/HRTW/WHEY in changes in muscle mass, strength, or power during follow-up. STOP was associated with a poorer preservation of quadriceps cross-sectional area compared with CONT (-1.7 cm 2 [-0.4 to -3.0], P = 0.01, effect size: 0.79). No effect of training continuation was observed on changes in muscle strength and power. In conclusion, maintenance of muscle mass and strength is not superior after home-based resistance training compared with center-based training. However, training continuation seems crucial for the maintenance of muscle mass, irrespective of the training intervention.
UR - http://www.scopus.com/inward/record.url?scp=85171901830&partnerID=8YFLogxK
U2 - 10.1519/JSC.0000000000004517
DO - 10.1519/JSC.0000000000004517
M3 - Journal article
C2 - 37463344
AN - SCOPUS:85171901830
VL - 37
SP - 2064
EP - 2070
JO - Journal of Strength and Conditioning Research
JF - Journal of Strength and Conditioning Research
SN - 1064-8011
IS - 10
ER -
ID: 369131311