Sofie Martien1, Christophe Delecluse2, Filip Boen2, Jan Seghers2, Johan Pelssers2, Ann-Sophie Van Hoecke2, Evelien Van Roie2. 1. KU Leuven, Faculty of Kinesiology and Rehabilitation Sciences, Department of Kinesiology, Physical Activity, Sports and Health Research Group, Heverlee, Belgium. Electronic address: sofie.martien@faber.kuleuven.be. 2. KU Leuven, Faculty of Kinesiology and Rehabilitation Sciences, Department of Kinesiology, Physical Activity, Sports and Health Research Group, Heverlee, Belgium.
Abstract
BACKGROUND: The first purpose was to examine whether knee extension strength is a better predictor of functional performance than handgrip strength among older adults (≥60 years). The second purpose was to identify functionally relevant cut-off values for muscle strength. METHODS: 770 community-dwelling older adults, 104 older adults living in assisted living facilities and 73 nursing home residents were included. Static strength, expressed in kg/kg body weight (BW), was measured using two field tests: handgrip (GRIP/BW) and knee extension (KNEE/BW) test. Functional performance was assessed with 6-Minute Walk Distance (6MWD, N=947) and modified Physical Performance Test (mPPT, N=152). RESULTS: Both GRIP/BW and KNEE/BW were positively correlated with functional performance in all settings (p<0.05). In the community and nursing homes, both strength variables equally contributed to functional performance. In assisted living facilities, KNEE/BW (R(2)6MWD=0.39 and R2mPPT=0.35) was clearly a better predictor of functional performance than GRIP/BW (R(2)6MWD=0.15 and R2mPPT=0.12). GRIP/BW had no added value to KNEE/BW in order to explain the variance in functional performance. Functionally relevant cut-off values for static strength, for men and women respectively, were set at 0.40 and 0.31 for KNEE/BW and at 0.43 and 0.31 for GRIP/BW. CONCLUSIONS: Handgrip and knee extension strength are both important predictors of functional performance in older adults. In assisted living facilities only, knee extension strength was clearly more predictive than handgrip strength. Both cut-off values appear to be highly sensitive to screen for functionally relevant muscle weakness in older adults.
BACKGROUND: The first purpose was to examine whether knee extension strength is a better predictor of functional performance than handgrip strength among older adults (≥60 years). The second purpose was to identify functionally relevant cut-off values for muscle strength. METHODS: 770 community-dwelling older adults, 104 older adults living in assisted living facilities and 73 nursing home residents were included. Static strength, expressed in kg/kg body weight (BW), was measured using two field tests: handgrip (GRIP/BW) and knee extension (KNEE/BW) test. Functional performance was assessed with 6-Minute Walk Distance (6MWD, N=947) and modified Physical Performance Test (mPPT, N=152). RESULTS: Both GRIP/BW and KNEE/BW were positively correlated with functional performance in all settings (p<0.05). In the community and nursing homes, both strength variables equally contributed to functional performance. In assisted living facilities, KNEE/BW (R(2)6MWD=0.39 and R2mPPT=0.35) was clearly a better predictor of functional performance than GRIP/BW (R(2)6MWD=0.15 and R2mPPT=0.12). GRIP/BW had no added value to KNEE/BW in order to explain the variance in functional performance. Functionally relevant cut-off values for static strength, for men and women respectively, were set at 0.40 and 0.31 for KNEE/BW and at 0.43 and 0.31 for GRIP/BW. CONCLUSIONS: Handgrip and knee extension strength are both important predictors of functional performance in older adults. In assisted living facilities only, knee extension strength was clearly more predictive than handgrip strength. Both cut-off values appear to be highly sensitive to screen for functionally relevant muscle weakness in older adults.
Authors: JoÃo Pedro Nunes; Paolo M Cunha; Melissa Antunes; Bruna D V Costa; Witalo Kassiano; Gabriel Kunevaliki; Alex S Ribeiro; Edilson S Cyrino Journal: Int J Exerc Sci Date: 2020-12-01
Authors: Lorenzo M Donini; Luca Busetto; Stephan C Bischoff; Tommy Cederholm; Maria D Ballesteros-Pomar; John A Batsis; Juergen M Bauer; Yves Boirie; Alfonso J Cruz-Jentoft; Dror Dicker; Stefano Frara; Gema Frühbeck; Laurence Genton; Yftach Gepner; Andrea Giustina; Maria Cristina Gonzalez; Ho-Seong Han; Steven B Heymsfield; Takashi Higashiguchi; Alessandro Laviano; Andrea Lenzi; Ibolya Nyulasi; Edda Parrinello; Eleonora Poggiogalle; Carla M Prado; Javier Salvador; Yves Rolland; Ferruccio Santini; Mireille J Serlie; Hanping Shi; Cornel C Sieber; Mario Siervo; Roberto Vettor; Dennis T Villareal; Dorothee Volkert; Jianchun Yu; Mauro Zamboni; Rocco Barazzoni Journal: Obes Facts Date: 2022-02-23 Impact factor: 4.807
Authors: Yurun Cai; Qu Tian; Alden L Gross; Hang Wang; Jian-Yu E; Yuri Agrawal; Eleanor M Simonsick; Luigi Ferrucci; Jennifer A Schrack Journal: J Gerontol A Biol Sci Med Sci Date: 2022-08-12 Impact factor: 6.591
Authors: Suey S Y Yeung; Esmee M Reijnierse; Marijke C Trappenburg; Gerard J Blauw; Carel G M Meskers; Andrea B Maier Journal: BMC Geriatr Date: 2018-06-01 Impact factor: 3.921