TY - JOUR
T1 - Muscle Strength Is Associated with Muscle Mass in Patients with Esophageal Cancer Awaiting Surgery
AU - Van Egmond, Maarten A.
AU - Van Der Schaaf, Marike
AU - Hagens, Eliza R.C.
AU - Van Laarhoven, Hanneke W.M.
AU - Van Berge Henegouwen, Mark I.
AU - Haverkort, Elizabeth B.
AU - Engelbert, Raoul H.H.
AU - Gisbertz, Suzanne S.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - Background and Purpose: Decreased muscle mass and muscle strength are independent predictors of poor postoperative recovery in patients with esophageal cancer. If there is an association between muscle mass and muscle strength, physiotherapists are able to measure muscle strength as an early predictor for poor postoperative recovery due to decreased muscle mass. Therefore, in this cross-sectional study, we aimed to investigate the association between muscle mass and muscle strength in predominantly older patients with esophageal cancer awaiting esophagectomy prior to neoadjuvant chemoradiation. Methods: In patients with resectable esophageal cancer eligible for surgery between March 2012 and October 2015, we used computed tomographic scans to assess muscle mass and compared them with muscle strength measures (handgrip strength, inspiratory and expiratory muscle strength, 30 seconds chair stands test). We calculated Pearson correlation coefficients and determined associations by multivariate linear regression analysis. Results and Discussion: A tertiary referral center referred 125 individuals to physiotherapy who were eligible for the study; we finally included 93 individuals for statistical analysis. Multiple backward regression analysis showed that gender (95% confidence interval [CI], 2.05-33.82), weight (95% CI, 0.39-1.02), age (95% CI, -0.91 to -0.04), left handgrip strength (95% CI, 0.14-1.44), and inspiratory muscle strength (95% CI, 0.08-0.38) were all independently associated with muscle surface area at L3. All these variables together explained 66% of the variability (R2) in muscle surface area at L3 (P <.01). Conclusions: This study shows an independent association between aspects of muscle strength and muscle mass in patients with esophageal cancer awaiting surgery, and physiotherapists could use the results to predict muscle mass on the basis of muscle strength in preoperative patients with esophageal cancer.
AB - Background and Purpose: Decreased muscle mass and muscle strength are independent predictors of poor postoperative recovery in patients with esophageal cancer. If there is an association between muscle mass and muscle strength, physiotherapists are able to measure muscle strength as an early predictor for poor postoperative recovery due to decreased muscle mass. Therefore, in this cross-sectional study, we aimed to investigate the association between muscle mass and muscle strength in predominantly older patients with esophageal cancer awaiting esophagectomy prior to neoadjuvant chemoradiation. Methods: In patients with resectable esophageal cancer eligible for surgery between March 2012 and October 2015, we used computed tomographic scans to assess muscle mass and compared them with muscle strength measures (handgrip strength, inspiratory and expiratory muscle strength, 30 seconds chair stands test). We calculated Pearson correlation coefficients and determined associations by multivariate linear regression analysis. Results and Discussion: A tertiary referral center referred 125 individuals to physiotherapy who were eligible for the study; we finally included 93 individuals for statistical analysis. Multiple backward regression analysis showed that gender (95% confidence interval [CI], 2.05-33.82), weight (95% CI, 0.39-1.02), age (95% CI, -0.91 to -0.04), left handgrip strength (95% CI, 0.14-1.44), and inspiratory muscle strength (95% CI, 0.08-0.38) were all independently associated with muscle surface area at L3. All these variables together explained 66% of the variability (R2) in muscle surface area at L3 (P <.01). Conclusions: This study shows an independent association between aspects of muscle strength and muscle mass in patients with esophageal cancer awaiting surgery, and physiotherapists could use the results to predict muscle mass on the basis of muscle strength in preoperative patients with esophageal cancer.
KW - muscle mass
KW - muscle strength
KW - oncology
KW - physiotherapy
KW - sarcopenia
UR - http://www.scopus.com/inward/record.url?scp=85082733214&partnerID=8YFLogxK
U2 - https://doi.org/10.1519/JPT.0000000000000200
DO - https://doi.org/10.1519/JPT.0000000000000200
M3 - Article
C2 - 29864049
SN - 1539-8412
VL - 43
SP - 82
EP - 88
JO - Journal of Geriatric Physical Therapy
JF - Journal of Geriatric Physical Therapy
IS - 2
ER -