Association Between Maximal Bench Press Strength and Isometric Handgrip Strength Among Breast Cancer Survivors

Benjamin H. Rogers, Justin C. Brown, David R. Gater, Kathryn H. Schmitz

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Objective To characterize the relationship between 1-repetition maximum (1-RM) bench press strength and isometric handgrip strength among breast cancer survivors. Design Cross-sectional study. Setting Laboratory. Participants Community-dwelling breast cancer survivors (N=295). Interventions Not applicable. Main Outcome Measure 1-RM bench press strength was measured with a barbell and exercise bench. Isometric handgrip strength was measured using an isometric dynamometer, with 3 maximal contractions of the left and right hands. All measures were conducted by staff with training in clinical exercise testing. Results Among 295 breast cancer survivors, 1-RM bench press strength was 18.2±6.1kg (range, 2.2–43.0kg), and isometric handgrip strength was 23.5±5.8kg (range, 9.0–43.0kg). The strongest correlate of 1-RM bench press strength was the average isometric handgrip strength of both hands (r=.399; P<.0001). Mean difference analysis suggested that the average isometric handgrip strength of both hands overestimated 1-RM bench press strength by 4.7kg (95% limits of agreement, −8.2 to 17.6kg). In a multivariable linear regression model, the average isometric handgrip strength of both hands (β=.31; P<.0001) and age (β=−.20; P<.0001) were positively correlated with 1-RM bench press strength (R2=.23). Conclusions Isometric handgrip strength is a poor surrogate for 1-RM bench press strength among breast cancer survivors. 1-RM bench press strength and isometric handgrip strength quantify distinct components of muscular strength.

Original languageEnglish (US)
Pages (from-to)264-269
Number of pages6
JournalArchives of Physical Medicine and Rehabilitation
Volume98
Issue number2
DOIs
StatePublished - Feb 1 2017

All Science Journal Classification (ASJC) codes

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation

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