TY - JOUR
T1 - Differences in the Relationships Between Muscle Strength, Muscle Mass, Balance Function, and Quality of Life for Middle-Aged and Older Breast Cancer Survivors
AU - Morishita, Shinichiro
AU - Kasahara, Ryuichi
AU - Yamamoto, Yuichi
AU - Jinbo, Ryohei
AU - Takano, Aya
AU - Yasuda, Mitsuhiko
AU - Tsubaki, Atsuhiro
AU - Aoki, Osamu
AU - Fu, Jack B.
AU - Tsuji, Tetsuya
N1 - Publisher Copyright:
© The Author(s) 2022.
PY - 2022/1/1
Y1 - 2022/1/1
N2 - Purpose: The purpose of this study was to investigate the differences in muscle strength, muscle mass, balance function, and quality of life (QOL) among middle-aged breast cancer survivors (BCSs) and older BCSs. Methods: The study included 53 middle-aged (<65 years old) BCSs and 49 older (≥65 years old) BCSs. Muscle strength was evaluated via handgrip and knee extensor strength, and muscle mass was assessed using a body composition test. Balance function was assessed using the Timed Up and Go test and the body sway test. QOL was assessed using the Medical Outcome Study 36-item Short-Form Health Survey. Results: The older BCSs had significantly lower right grip strength, right knee extension strength, and muscle mass (P <.05) than the middle-aged BCSs. In addition, the body sway test showed that older BCSs had a significant increase in the length of center of pressure compared to middle-aged BCSs (P <.05). Older BCSs showed significantly lower physical functioning subscales in QOL compared to middle-aged BCSs (P <.05). The associations among muscle strength, muscle mass and QOL were more significantly observed in the older BCSs (P <.05). Furthermore, a significant correlation between QOL and balance function was observed in the older BCSs, but not in the middle-aged BCSs (P <.05). Conclusion: There may be associations among muscle strength, muscle mass, balance and QOL in older BCSs, but not in middle-aged BCSs. We believe that the findings of this study will be relevant in the context of planning rehabilitation for older BCSs.
AB - Purpose: The purpose of this study was to investigate the differences in muscle strength, muscle mass, balance function, and quality of life (QOL) among middle-aged breast cancer survivors (BCSs) and older BCSs. Methods: The study included 53 middle-aged (<65 years old) BCSs and 49 older (≥65 years old) BCSs. Muscle strength was evaluated via handgrip and knee extensor strength, and muscle mass was assessed using a body composition test. Balance function was assessed using the Timed Up and Go test and the body sway test. QOL was assessed using the Medical Outcome Study 36-item Short-Form Health Survey. Results: The older BCSs had significantly lower right grip strength, right knee extension strength, and muscle mass (P <.05) than the middle-aged BCSs. In addition, the body sway test showed that older BCSs had a significant increase in the length of center of pressure compared to middle-aged BCSs (P <.05). Older BCSs showed significantly lower physical functioning subscales in QOL compared to middle-aged BCSs (P <.05). The associations among muscle strength, muscle mass and QOL were more significantly observed in the older BCSs (P <.05). Furthermore, a significant correlation between QOL and balance function was observed in the older BCSs, but not in the middle-aged BCSs (P <.05). Conclusion: There may be associations among muscle strength, muscle mass, balance and QOL in older BCSs, but not in middle-aged BCSs. We believe that the findings of this study will be relevant in the context of planning rehabilitation for older BCSs.
KW - QOL
KW - balance function
KW - breast cancer survivors
KW - muscle mass
KW - muscle strength
KW - older
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U2 - 10.1177/15347354221138574
DO - 10.1177/15347354221138574
M3 - Article
C2 - 36511322
AN - SCOPUS:85143993009
SN - 1534-7354
VL - 21
JO - Integrative cancer therapies
JF - Integrative cancer therapies
ER -