Table 2.

Summary values of pain severity, muscle strength, and peak uptake of oxygen (VO₂)

Characteristic	FM patients (n=69)
Pain severity (± standard deviation)*	47.7±4.2
Isometric knee extensor (Nm)*	130.7±45.0
Isokinetic knee extensor 60°/s (Nm)*	92.9±40.3
Isokinetic knee extensor 180°/s	64.2±28.1
Isokinetic knee flexor 60°/s*	53.7±23.0
Isokinetic knee flexor 180°/s	45.0±18.7
Peak VO2 uptake (mL/kg/min)*	16.5±4.2

Notes:

^*Data have been previously reported. Adapted from Hooten WM, Qu W, Townsend CO, Judd JW. Effects of strength vs aerobic exercise on pain severity in adults with fibromyalgia: a randomized equivalence trial. Pain. 2012;153(4):915–923.⁷ Copyright © 2012 International Association for the Study of Pain; Hooten WM, Rosenberg CJ, Eldrige JS, Qu W. Knee extensor strength is associated with pressure pain thresholds in adults with fibromyalgia. PLoS One. 2013;8(4):e59930.⁸

Abbreviation: FM, fibromyalgia.