Body Composition, Endurance, Strength, Cross-sectional Area, and Density of MM Erector Spinae in Men With and Without Low Back Pain

Relationship between back muscle endurance and voluntary activation

“…There has been much research showing that people with low back pain have poor endurance (Biering-Sorensen, 1984;Nicolaisen and Jorgensen, 1985;Hultman et al, 1993;Alaranta et al, 1995), differences in the level of neuromuscular fatigability during submaximal contractions (Holmstrom et al, 1992;Mannion et al, 1997a,b;Oddsson and De Luca, 2003;Heydari et al, 2010) and lower corticospinal excitability compared to healthy controls (Strutton et al, 2005). It remains to be determined if those subjects who are at risk from future low back pain, as predicted by changes in their EMG characteristics (see (Heydari et al, 2010)) or those who have a history of low back pain (but free from pain at the time of experimentation) have reduced voluntary activation.…”

“…There is evidence showing that low back pain (LBP) is associated with poor back muscle endurance (Biering-Sorensen, 1984;Nicolaisen and Jorgensen, 1985;Hultman et al, 1993;Alaranta et al, 1995) and one widely used and validated test of back muscle endurance is the Biering-Sorensen (BS) test (Latimer et al, 1999;Moreau et al, 2001). This sustained submaximal test has been shown to discriminate between subjects with low back pain LBP and healthy controls and also shown to predict the future occurrence of LBP (Nicolaisen and Jorgensen, 1985;Hultman et al, 1993).…”

“…There is evidence showing that low back pain (LBP) is associated with poor back muscle endurance (Biering-Sorensen, 1984;Nicolaisen and Jorgensen, 1985;Hultman et al, 1993;Alaranta et al, 1995) and one widely used and validated test of back muscle endurance is the Biering-Sorensen (BS) test (Latimer et al, 1999;Moreau et al, 2001). This sustained submaximal test has been shown to discriminate between subjects with low back pain LBP and healthy controls and also shown to predict the future occurrence of LBP (Nicolaisen and Jorgensen, 1985;Hultman et al, 1993). Subjects with LBP have also been shown to have alterations in neuromuscular control, including changes in fatigability (Holmstrom et al, 1992;Mannion et al, 1997a,b;Oddsson and De Luca, 2003), activation (Oddsson and De Luca, 2003), postural responses to perturbations Richardson, 1998, 1999;Radebold et al, 2000), implying a change in the central nervous system control.…”

Effects of trunk muscle fatigue and load timing on spinal responses during sudden hand loading

“…Trunk muscle fatigue has also been shown to impair muscle coordination (Potvin and O'Brien, 1998), thereby increasing spinal instability and eliciting the production of motions not commonly observed under rested conditions (Mital et al, 1993). Furthermore, several researchers have shown that there is a strong correlation between isometric back endurance and LBP (Biering-Sørensen, 1984;Hultman et al, 1993).…”

The assessment of back muscle capacity using intermittent static contractions. Part I – Validity and reliability of electromyographic indices of fatigue

“…This has been attributed to the so-called deconditioning syndrome, a concept that is operationally defined, through functional measures, by a decrease of the strength and endurance of the erector spinae muscle (Hultman et al, 1993), to name only a few out of the deconditioning-related functional changes (Verbunt et al, 2003). The role of strength in the etiology of low back pain is not straightforward because it is emphasized only when strength is expressed in relation to job demands (Dempsey et al, 1997).…”