Paraspinal strength and electromyographic fatigue in patients with sub-acute back pain and controls: Reliability, clinical applicability and between-group differences

doi:10.5312/wjo.v12.i11.816

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Nov 18, 2021 (publication date) through Sep 26, 2024

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World Journal of Orthopedics

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2218-5836

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Orthop. Nov 18, 2021; 12(11): 816-832
Published online Nov 18, 2021. doi: 10.5312/wjo.v12.i11.816

Table 2 Maximum strength (mean ± SD) values in controls and patients

	Non-LBP (n = 26)			LBP (n = 66)
MVIC (kg)	Day 1 (practice)	Day 2	P value	Day 1 (practice)	Day 2	P value
Maximum	85.8 ± 23.7	91.4 ± 26.7	0.005^b	58.7 ± 24.8	63.5 ± 26.5	0.0005^b
		Mean increase: 6.5%			Mean increase: 9.4%
Mean	82.6 ± 22.7	88.5 ± 25.5	0.002^b	56.0 ± 24.1	61.1 ± 26.0	0.0005^b
		Mean increase: 7.2%			Mean increase: 9.7%

^bP < 0.01.

MVIC: Maximum/mean voluntary isometric contraction.

Citation: Koumantakis GA, Oldham JA. Paraspinal strength and electromyographic fatigue in patients with sub-acute back pain and controls: Reliability, clinical applicability and between-group differences. World J Orthop 2021; 12(11): 816-832
URL: https://www.wjgnet.com/2218-5836/full/v12/i11/816.htm
DOI: https://dx.doi.org/10.5312/wjo.v12.i11.816