Spine kinematics, kinetics, and trunk muscle activities were evaluated during different stages of a fatigue-induced symmetric lifting task over time.
Background
Due to neuromuscular adaptations, postural behaviors of workers during lifting tasks are affected by fatigue. Comprehensive aspects of these adaptations remain to be investigated.
Method
Eighteen volunteers repeatedly lifted a box until perceived exhaustion. Body center of mass (CoM), trunk and box kinematics, and feet center of pressure (CoP) were estimated by a motion capture system and force-plate. Electromyographic (EMG) signals of trunk/abdominal muscles were assessed using linear and nonlinear approaches. The L5-S1 compressive force (Fc) was predicted via a biomechanical model. A two-way multivariate analysis of variance (MANOVA) was performed to examine the effects of five blocks of lifting cycle (C1 to C5) and lifting trial (T1 to T5), as independent variables, on kinematic, kinetic, and EMG-related measures.
Results
Significant effects of lifting trial blocks were found for CoM and CoP shift in the anterior–posterior direction (respectively p < .001 and p = .014), trunk angle (p = .004), vertical box displacement (p < .001), and Fc (p = .005). EMG parameters indicated muscular fatigue with the extent of changes being muscle-specific.
Conclusion
Results emphasized variations in most kinematics/kinetics, and EMG-based indices, which further provided insight into the lifting behavior adaptations under dynamic fatiguing conditions.
Application
Movement and muscle-related variables, to a large extent, determine the magnitude of spinal loading, which is associated with low back pain.
AhmadI.KimJ.-Y. (2018). Assessment of whole body and local muscle fatigue using electromyography and a perceived exertion scale for squat lifting. International Journal of Environmental Research and Public Health, 15, 784.doi:10.3390/ijerph15040784
2.
AmannM.SidhuS. K.WeavilJ. C.MangumT. S.VenturelliM. (2015). Autonomic responses to exercise: Group III/IV muscle afferents and fatigue. Autonomic Neuroscience, 188, 19–23.doi:10.1016/j.autneu.2014.10.01825458423
3.
ArjmandN.GagnonD.PlamondonA.Shirazi-AdlA.LarivièreC. (2010). A comparative study of two trunk biomechanical models under symmetric and asymmetric loadings. Journal of Biomechanics, 43, 485–491.doi:10.1016/j.jbiomech.2009.09.03219880122
4.
BaniasadM.FarahmandF.ArazpourM.ZohoorH. (2019). Kinematic and electromyography analysis of paraplegic gait with the assistance of mechanical orthosis and walker. The Journal of Spinal Cord Medicine, 42, 1–8.doi:10.1080/10790268.2019.158570530883299
5.
BartlettR.WheatJ.RobinsM. (2007). Is movement variability important for sports biomechanists?Sports Biomechanics, 6, 224–243.doi:10.1080/1476314070132299417892098
6.
BauerC. M.RastF. M.ErnstM. J.MeichtryA.KoolJ.RissanenS. M.SuniJ. H.KankaanpääM. (2017). The effect of muscle fatigue and low back pain on lumbar movement variability and complexity. Journal of Electromyography and Kinesiology, 33, 94–102.doi:10.1016/j.jelekin.2017.02.00328226298
7.
BernardoF.MartinsR.GuedesJ. (2018). Muscle fatigue assessment in manual handling of loads using motion analysis and accelerometers: A short review[Symposium]. Paper presented at the Occupational Safety and Hygiene VI: Proceedings of the 6th International Symposium on Occupation Safety and Hygiene (SHO 2018), Guimaraes, Portugal.
8.
BonatoP.EbenbichlerG. R.RoyS. H.LehrS.PoschM.KollmitzerJ.Della CroceU. (2003). Muscle fatigue and fatigue-related biomechanical changes during a cyclic lifting task. Spine, 28, 1810–1820.doi:10.1097/01.BRS.0000087500.70575.4512923468
9.
BoocockM. G.MawstonG. A.TaylorS. (2015). Age-related differences do affect postural kinematics and joint kinetics during repetitive lifting. Clinical Biomechanics, 30, 136–143.doi:10.1016/j.clinbiomech.2014.12.01025576019
10.
BrinckmannP.BiggemannM.HilwegD. (1988). Fatigue fracture of human lumbar vertebrae. Clinical Biomechanics, 3 (Suppl 1), i–0.doi:10.1016/S0268-0033(88)80001-923905925
11.
CashabackJ. G. A.CluffT.PotvinJ. R. (2013). Muscle fatigue and contraction intensity modulates the complexity of surface electromyography. Journal of Electromyography and Kinesiology, 23, 78–83.doi:10.1016/j.jelekin.2012.08.00422959820
12.
CavanaughJ. T.GuskiewiczK. M.StergiouN. (2005). A nonlinear dynamic approach for evaluating postural control. Sports Medicine, 35, 935–950.doi:10.2165/00007256-200535110-00002
13.
ChenX.XieP.LiuH.SongY.DuY. (2016). Local band spectral entropy based on wavelet packet applied to surface EMG signals analysis. Entropy, 18, 41.doi:10.3390/e18020041
14.
ChenY.-L. (2000). Changes in lifting dynamics after localized arm fatigue. International Journal of Industrial Ergonomics, 25, 611–619.doi:10.1016/S0169-8141(99)00048-7
15.
DavisK. G. (1996). The effect of lifting vs. lowering on spinal loading[Conference session]. Paper presented at the Proceedings of the Human Factors and Ergonomics Society Annual Meeting
16.
DavisR. B.OunpuuS.TyburskiD.GageJ. R. (1991). A gait analysis data collection and reduction technique.
17.
Delgado-BonalA.MarshakA. (2019). Approximate entropy and sample entropy: A comprehensive tutorial. Entropy, 21, 541.doi:10.3390/e2106054133267255
18.
DolanP.AdamsM. (1993). PCSA. Journal of Biomechanics, 26, 513–522.
19.
DolanP.AdamsM. A. (1998). Repetitive lifting tasks fatigue the back muscles and increase the bending moment acting on the lumbar spine. Journal of Biomechanics, 31, 713–721.doi:10.1016/S0021-9290(98)00086-49796671
20.
DonkerS. F.RoerdinkM.GrevenA. J.BeekP. J. (2007). Regularity of center-of-pressure trajectories depends on the amount of attention invested in postural control. Experimental Brain Research, 181, 1–11.doi:10.1007/s00221-007-0905-417401553
21.
FischerS. L.GreeneH. P.HamptonR. H.CochranM. G.AlbertW. J. (2015). Gender-based differences in trunk and shoulder biomechanical changes caused by prolonged repetitive symmetrical lifting. IIE Transactions on Occupational Ergonomics and Human Factors, 3, 165–176.doi:10.1080/21577323.2015.1034382
22.
FlintJ.LinnemanT.PedersonR.StorstadM. (2015). EMG analysis of latissimus dorsi, erector spinae and middle trapezius muscle activity during spinal rotation: A pilot study. University of North Dakota.
23.
FullerJ. R.FungJ.CôtéJ. N. (2011). Time-dependent adaptations to posture and movement characteristics during the development of repetitive reaching induced fatigue. Experimental Brain Research, 211, 133–143.doi:10.1007/s00221-011-2661-821484395
24.
GagnonD.ArjmandN.PlamondonA.Shirazi-AdlA.LarivièreC. (2011). An improved multi-joint EMG-assisted optimization approach to estimate joint and muscle forces in a musculoskeletal model of the lumbar spine. Journal of Biomechanics, 44, 1521–1529.doi:10.1016/j.jbiomech.2011.03.00221439569
25.
Gardner-MorseM.StokesI. A.LaibleJ. P. (1995). Role of muscles in lumbar spine stability in maximum extension efforts. Journal of Orthopaedic Research, 13, 802–808.doi:10.1002/jor.11001305217472760
26.
Ghesmaty SangachinM.CavuotoL. A. (2016). Obesity-related changes in prolonged repetitive lifting performance. Applied Ergonomics, 56, 19–26.doi:10.1016/j.apergo.2016.03.00227184307
27.
GranataK. P.MarrasW. S. (1995). An EMG-assisted model of trunk loading during free-dynamic lifting. Journal of Biomechanics, 28, 1309–1317.doi:10.1016/0021-9290(95)00003-Z8522544
28.
GranataK. P.OrishimoK. F. (2001). Response of trunk muscle coactivation to changes in spinal stability. Journal of Biomechanics, 34, 1117–1123.doi:10.1016/S0021-9290(01)00081-111506782
29.
GranataK. P.SlotaG. P.WilsonS. E. (2004). Influence of fatigue in neuromuscular control of spinal stability. Human Factors: The Journal of the Human Factors and Ergonomics Society, 46, 81–91.doi:10.1518/hfes.46.1.81.3039115151156
30.
HaddadO. (2011). Development and validation of a fatigue-modified, EMG-assisted biomechanical model of the lumbar region. Iowa State University.
31.
HaddadO.MirkaG. A. (2013). Trunk muscle fatigue and its implications in EMG-assisted biomechanical modeling. International Journal of Industrial Ergonomics, 43, 425–429.doi:10.1016/j.ergon.2013.08.004
32.
HardieR.HaskewR.HarrisJ.HughesG. (2015). The effects of bag style on muscle activity of the trapezius, erector spinae and latissimus dorsi during walking in female university students. Journal of Human Kinetics, 45, 39–47.doi:10.1515/hukin-2015-000525964808
33.
HongT.ZhangX.MaH.ChenY.ChenX. (2016). Fatiguing effects on the multi-scale entropy of surface electromyography in children with cerebral palsy. Entropy, 18, 177.doi:10.3390/e18050177
34.
KhalafT.KarwowskiW.SapkotaN. (2015). A nonlinear dynamics of trunk kinematics during manual lifting tasks. Work, 51, 423–437.doi:10.3233/WOR-14188024939122
35.
LakeD. E.RichmanJ. S.GriffinM. P.MoormanJ. R. (2002). Sample entropy analysis of neonatal heart rate variability. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 283, R789–R797.doi:10.1152/ajpregu.00069.200212185014
36.
LotzC. A.AgnewM. J.GodwinA. A.StevensonJ. M. (2009). The effect of an on-body personal lift assist device (PLAD) on fatigue during a repetitive lifting task. Journal of Electromyography and Kinesiology, 19, 331–340.doi:10.1016/j.jelekin.2007.08.00618055220
37.
MawstonG. A.McNairP. J.BoocockM. G. (2007). The effects of prior warning and lifting-induced fatigue on trunk muscle and postural responses to sudden loading during manual handling. Ergonomics, 50, 2157–2170.doi:10.1080/0014013070151013917852372
38.
MehtaJ. P.LavenderS. A.JagacinskiR. J. (2014). Physiological and biomechanical responses to a prolonged repetitive asymmetric lifting activity. Ergonomics, 57, 575–588.doi:10.1080/00140139.2014.88778824552498
39.
MerryweatherA. S.LoertscherM. C.BloswickD. S. (2009). A revised back compressive force estimation model for ergonomic evaluation of lifting tasks. Work, 34, 263–272.doi:10.3233/WOR-2009-092420037241
40.
MissenardO.MottetD.PerreyS. (2008). The role of cocontraction in the impairment of movement accuracy with fatigue. Experimental Brain Research, 185, 151–156.doi:10.1007/s00221-007-1264-x18205000
41.
MonjoF.TerrierR.ForestierN. (2015). Muscle fatigue as an investigative tool in motor control: A review with new insights on internal models and posture-movement coordination. Human Movement Science, 44, 225–233.doi:10.1016/j.humov.2015.09.00626406972
42.
Nelson-WongE.CallaghanJ. P. (2010). Repeatability of clinical, biomechanical, and motor control profiles in people with and without standing-induced low back pain. Rehabilitation Research and Practice, 2010, 1–9.doi:10.1155/2010/28927822110964
43.
RajachandrakumarR.MannJ.Schinkel-IvyA.MansfieldA. (2018). Exploring the relationship between stability and variability of the centre of mass and centre of pressure. Gait & Posture, 63, 254–259.doi:10.1016/j.gaitpost.2018.05.00829778979
44.
RichmanJ. S.MoormanJ. R. (2000). Physiological time-series analysis using approximate entropy and sample entropy. American Journal of Physiology-Heart and Circulatory Physiology, 278, H2039–H2049.doi:10.1152/ajpheart.2000.278.6.H203910843903
45.
SamadiS.ArjmandN. (2018). A novel stability-based EMG-assisted optimization method for the spine. Medical Engineering & Physics, 58, 13–22.doi:10.1016/j.medengphy.2018.04.01929945762
46.
SedighiA.NussbaumM. A. (2017). Temporal changes in motor variability during prolonged lifting/lowering and the influence of work experience. Journal of Electromyography and Kinesiology, 37, 61–67.doi:10.1016/j.jelekin.2017.09.00128941870
47.
SidhuS. K.WeavilJ. C.VenturelliM.GartenR. S.RossmanM. J.RichardsonR. S.GmelchB. S.MorganD. E.AmannM. (2014). Spinal μ-opioid receptor-sensitive lower limb muscle afferents determine corticospinal responsiveness and promote central fatigue in upper limb muscle. The Journal of Physiology, 592, 5011–5024.doi:10.1113/jphysiol.2014.27543825172953
48.
SpartoP. J.ParnianpourM. (1998). Estimation of trunk muscle forces and spinal loads during fatiguing repetitive trunk exertions. Spine, 23, 2563–2573.doi:10.1097/00007632-199812010-000119854755
49.
SpartoP. J.ParnianpourM.ReinselT. E.SimonS. (1997). The effect of fatigue on multijoint kinematics and load sharing during a repetitive lifting test. Spine, 22, 2647–2654.doi:10.1097/00007632-199711150-000139399451
50.
SrinivasanD.MathiassenS. E. (2012). Motor variability in occupational health and performance. Clinical Biomechanics, 27, 979–993.doi:10.1016/j.clinbiomech.2012.08.00722954427
51.
StergiouN.DeckerL. M. (2011). Human movement variability, nonlinear dynamics, and pathology: Is there a connection?Human Movement Science, 30, 869–888.doi:10.1016/j.humov.2011.06.00221802756
52.
TanakaH.MonahanK. D.SealsD. R. (2001). Age-predicted maximal heart rate revisited. Journal of the American College of Cardiology, 37, 153–156.doi:10.1016/S0735-1097(00)01054-811153730
53.
TraskC.TeschkeK.MorrisonJ.JohnsonP.VillageJ.KoehoornM. (2010). EMG estimated mean, peak, and cumulative spinal compression of workers in five heavy industries. International Journal of Industrial Ergonomics, 40, 448–454.doi:10.1016/j.ergon.2010.02.006
54.
van DieënJ. H.SelenL. P. J.CholewickiJ. (2003). Trunk muscle activation in low-back pain patients, an analysis of the literature. Journal of Electromyography and Kinesiology, 13, 333–351.doi:10.1016/S1050-6411(03)00041-512832164
55.
van DieënJ. H.van der BurgP.RaaijmakersT. A.ToussaintH. M. (1998). Effects of repetitive lifting on kinematics: Inadequate anticipatory control or adaptive changes?Journal of Motor Behavior, 30, 20–32.doi:10.1080/0022289980960131920037017
WangL.WangY.MaA.MaG.YeY.LiR.LuT. (2018). A comparative study of EMG indices in muscle fatigue evaluation based on grey relational analysis during all-out cycling exercise. BioMed Research International, 2018, 1–8.doi:10.1155/2018/934121529850588
58.
YinP.YangL.WangC.QuS. (2019). Effects of wearable power assist device on low back fatigue during repetitive lifting tasks. Clinical Biomechanics, 70, 59–65.doi:10.1016/j.clinbiomech.2019.07.02331401531
59.
ZhangX.ZhouP. (2012). Sample entropy analysis of surface EMG for improved muscle activity onset detection against spurious background spikes. Journal of Electromyography and Kinesiology, 22, 901–907.doi:10.1016/j.jelekin.2012.06.00522800657
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