Shunsuke Murata1, Takehiko Doi2, Ryuichi Sawa3, Takashi Saito4, Ryo Nakamura4, Tsunenori Isa4, Aoi Ebina4, Yuki Kondo4, Yamato Tsuboi4, Shogo Misu5, Rei Ono6. 1. Department of Community Health Sciences, Kobe University, Graduate School of Health Sciences, 7-10-2, Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan; Japan Society for the Promotion of Science, 5-3-1, Koujimachi, Chiyoda, Tokyo 102-0083, Japan. Electronic address: murata.s@stu.kobe-u.ac.jp. 2. Section for Health Promotion, Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430, Morioka-cho, Obu, Aichi, 474-8511, Japan. 3. Department of Physical Therapy, School of Health Sciences at Narita, International University of Health and Welfare, 4-3, Kōzunomori, Narita-shi, Chiba-ken, 286-8686, Japan. 4. Department of Community Health Sciences, Kobe University, Graduate School of Health Sciences, 7-10-2, Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan. 5. Department of Community Health Sciences, Kobe University, Graduate School of Health Sciences, 7-10-2, Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan; Kobe City Hospital Organization, Kobe City Medical Center, West Hospital, 2-4, Ichiban-cho, Nagata-ku, Kobe, Hyogo, 653-0013, Japan. 6. Department of Community Health Sciences, Kobe University, Graduate School of Health Sciences, 7-10-2, Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan. Electronic address: ono@phoenix.kobe-u.ac.jp.
Abstract
OBJECTIVE: This study aimed to examine the association between joint stiffness and health-related quality of life (HRQOL) in community-dwelling older adults. METHODS: Participants in this cross-sectional study were 530 Japanese community-dwelling older adults (mean age, 73.9 years; women, 64.3%). Joint stiffness was assessed at the neck, low back, shoulder, elbow, hand or wrist, hip, knee, and ankle or feet; the duration of joint stiffness was also evaluated. We assessed HRQOL using the Short Form-12 (SF-12) and EuroQOL-5 Dimension (EQ-5D) questionnaires. We calculated the physical component summary scores (PCS) and mental component summary scores (MCS) from SF-12 and the EQ-5D index from EQ-5D. RESULTS: The prevalence of joint stiffness was 54.0%. Joint stiffness at two or more sites and at each site had a meaningful impact on PCS. Joint stiffness that lasted for 30min or more was meaningfully associated with low PCS and EQ-5D scores (PCS, 30-60min: beta=-6.122, P<0.05; >60min: beta=-5.962, P<0.01; EQ-5D index, 30-60min: beta=-0.068, P<0.01; >60min: beta=-0.070, P<0.01). Further, joint stiffness that lasted over 60min extended over MCS (MCS, >60min: beta=-3.212, P<0.05). CONCLUSIONS: Joint stiffness is associated with HRQOL. Assessing joint stiffness and intervention could be beneficial for HRQOL.
OBJECTIVE: This study aimed to examine the association between joint stiffness and health-related quality of life (HRQOL) in community-dwelling older adults. METHODS:Participants in this cross-sectional study were 530 Japanese community-dwelling older adults (mean age, 73.9 years; women, 64.3%). Joint stiffness was assessed at the neck, low back, shoulder, elbow, hand or wrist, hip, knee, and ankle or feet; the duration of joint stiffness was also evaluated. We assessed HRQOL using the Short Form-12 (SF-12) and EuroQOL-5 Dimension (EQ-5D) questionnaires. We calculated the physical component summary scores (PCS) and mental component summary scores (MCS) from SF-12 and the EQ-5D index from EQ-5D. RESULTS: The prevalence of joint stiffness was 54.0%. Joint stiffness at two or more sites and at each site had a meaningful impact on PCS. Joint stiffness that lasted for 30min or more was meaningfully associated with low PCS and EQ-5D scores (PCS, 30-60min: beta=-6.122, P<0.05; >60min: beta=-5.962, P<0.01; EQ-5D index, 30-60min: beta=-0.068, P<0.01; >60min: beta=-0.070, P<0.01). Further, joint stiffness that lasted over 60min extended over MCS (MCS, >60min: beta=-3.212, P<0.05). CONCLUSIONS: Joint stiffness is associated with HRQOL. Assessing joint stiffness and intervention could be beneficial for HRQOL.