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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: Med Sci Sports Exerc. 2019 Oct;51(10):1977–1986. doi: 10.1249/MSS.0000000000002010

Table 1.

Baseline characteristics of older adults with knee osteoarthritis (OA). Values are means ± SD or % of the group.

CNC RT
(n =28)
ECC RT
(n =30)
CON
(n =32)
p (sig)
Age (yr) 69.5 ± 6.5 66.8 ± 5.4 68.6 ± 7.2 0.287
Body mass (kg) 92.7 ± 19.7 79.5 ± 20.7 86.8 ± 19.7 0.203
BMI (kg/m2) 32.8 ± 7.4 28.7 ± 6.6 30.1 ± 6.2 0.069
Fat-free mass (%) 57.3 ± 11.8 61.0 ± 9.6 61.7 ± 10.8 0.486
Sex (%)
 Female 67.0 70.0 66.0
 Male 33.0 30.0 34.0 0.381
Race/Ethnicity (#, %)
 White 85.0 93.0 81.0
 African-American 11.0 7.0 6.0
 Other 4.0 0.0 13.0 0.439
Work status (%)
 Working 40.0 23.0 34.0
 Not working 4.0 7.0 13.0
 Retired 52.0 70.0 50.0
 Disabled 4.0 0.0 3.0 0.981
Duration of pain, median [Q1–Q3] 4.5 [2–11] 10 [2.75–20] 5 [2–10] 0.150
Location of knee pain (%)
 Left 18.0 20.0 9.0
 Right 15.0 17.0 28.0
 Both 67.0 63.0 63.0
Pain Medications (#) 1.0 ± 0.5 0.9 ± 0.5 1.1 ± 1.1 0.863