Open AccessRelationship between hand grip strength and peak VO 2 in community‐dwelling elderly outpatients
Author(s) -
Sugie Masamitsu,
Harada Kazumasa,
Takahashi Tetsuya,
Nara Marina,
Ishikawa Joji,
Tanaka Jun,
Koyama Teruyuki,
Fujimoto Hajime,
Obuchi Shuichi,
Kyo Shunei,
Ito Hideki
Publication year - 2018
Publication title -
jcsm clinical reports
Language(s) - English
Resource type - Journals
ISSN - 2521-3555
DOI - 10.17987/jcsm-cr.v3i1.48
Subject(s) - grip strength , sarcopenia , confounding , medicine , logistic regression , physical therapy , hand strength , body mass index , physical medicine and rehabilitation , psychology
Background Hand grip strength and peak oxygen uptake (VO 2 ) are important components of frailty. However, the relationship between these two variables among community‐dwelling elderly people is still unclear. The present study aimed to investigate this relationship. Methods Participants were 190 Japanese community‐dwelling elderly outpatients (61 men and 129 women, mean age 78.0 years). Hand grip strength of participants' was measured using a Smedley‐type hand dynamometer. Peak VO 2 levels were assessed with a cardiopulmonary exercise test. Skeletal muscle mass index (SMI) and usual walking speed were assessed physiologically and physically. Sample size was calculated using G*Power 3.1.9.2. Results There were significant correlations between hand grip strength and age (r = −0.22), peak VO 2 (r = 0.40), SMI (r = 0.51), and usual walking speed (r = 0.29). There were significant differences in age, peak VO 2 and SMI after participants were divided into normal and low hand grip strength groups according to the Asian Working Group for Sarcopenia threshold, whether both sexes were combined or considered separately. Multiple logistic regression analysis showed that peak VO 2 , SMI and age were independent determinants of hand grip strength after adjusting for potential confounders (Exp(B) = 0.871; 0.475; 1.065). Longitudinal analysis after 6 months of exercise training showed the percentage of change in hand grip strength and peak VO 2 were correlated positively (r = 0.22) for 92 participants. Conclusion Peak VO 2 is independently associated with hand grip strength among community‐dwelling elderly outpatients.