Mechanical demands on the lower back in patients with non-chronic low back pain during a symmetric lowering and lifting task

According to National Institute of Neurological Disorders and Stroke (NINDS), a division of National Institutes of Health (NIH), about 80% adults suffer from low back pain at some point in time and about 2 out of 10 people who are affected by acute low back pain develop chronic low back pain with persistent symptoms at one year [1]. Though in some cases, treatment does relieve chronic low back pain, but in other cases, pain persists despite treatment. Mostly, the lower back pain is of mechanical nature, i.e., disruption in the way the components of the back (the spine, muscle, intervertebral discs, and nerves) fit together and move. The causes of lower back pain can be imputed to various conditions such as sprains and strains, osteoarthritis, herniated discs, whiplash, compression fracture, scoliosis, stenosis, inflammation of joints, osteoporosis. It not only causes pain, but also severs the economy of a nation. It is a major contributor to missed workdays [1]. Research indicates that the total indirect costs due to back pain accrue to more than $100 billion annually [2]. Not many people can afford traveling by car or taxi to office, especially in developing countries and in cities with high traffic, where people prefer to travel by two-wheelers for their access to work and other amenities. However, people with lumbar problems are recommended not to use two-wheelers as the movement of the body on uneven roads or while braking/accelerating may increase the pain and discomfort. This reduces the productivity of not only the individual and the firm but also the productivity of the country as a whole.

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Safe Lifting in Patients with Chronic Low Back Pain: Comparing FCE Lifting Task and Niosh Lifting Guideline

Journal of Occupational Rehabilitation ◽

10.1007/s10926-005-9010-3 ◽

2006 ◽

Vol 16 (4) ◽

pp. 579-589 ◽

Cited By ~ 7

Author(s):

Wietske Kuijer ◽

Pieter U. Dijkstra ◽

Sandra Brouwer ◽

Michiel F. Reneman ◽

Johan W. Groothoff ◽

...

Keyword(s):

Low Back Pain ◽

Back Pain ◽

Chronic Low Back Pain ◽

Low Back ◽

Lifting Task

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The Role of Substance P in Chronic Low Back Pain (CLBP)

Journal of Islamic Pharmacy ◽

10.18860/jip.v4i2.8163 ◽

2020 ◽

Vol 4 (2) ◽

pp. 9

Author(s):

Yusnita Rachmawati

Keyword(s):

Low Back Pain ◽

Back Pain ◽

Substance P ◽

Chronic Low Back Pain ◽

Pain Perception ◽

Low Back ◽

The Past ◽

Lower Back ◽

Treatment Measures

<p>Low Back Pain is one of the disease that causing global disability in the worldwide. In the past 10 years, prevalence of LBP has not decreased, it makes global burden increase substantially. Chronic low back pain(CLBP) is pain that is almost experienced daily by patients in the lower back region in a period of more than 3 months. Chronic low back pain is a mixture of pain that arises through nociceptive and neuropathic mechanisms. Over the past decade, numerous guidelines have been used in the management of CLBP. Problems that are still a controversy include the management of pain. The mechanism of many treatment measures is still in the low to moderate effectiveness stage, so that the pain management target is not optimal. Substance P is a neuropeptide that release both in acute and chronic pain. Therefore study about mechanisms that affect SP release may show important information regarding pathological alterations in pain perception.</p>

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Impact of load expectations on neuromuscular and postural strategies during a freestyle lifting task in individuals with and without chronic low back pain

PLoS ONE ◽

10.1371/journal.pone.0246791 ◽

2021 ◽

Vol 16 (2) ◽

pp. e0246791

Author(s):

Catherine Daneau ◽

Charles Tétreau ◽

Thomas Deroche ◽

Camille Mainville ◽

Vincent Cantin ◽

...

Keyword(s):

Low Back Pain ◽

Back Pain ◽

Chronic Low Back Pain ◽

Muscle Activation ◽

Perceived Exertion ◽

Center Of Pressure ◽

Erector Spinae ◽

Low Back ◽

Lumbar Flexion ◽

Lifting Task

Objective This study aimed to investigate how load expectations modulate neuromuscular and postural strategies in the anticipation of a freestyle lifting task with varying expected loads in individuals with and without chronic low back pain (cLBP). Methods Forty-seven participants, 28 with cLBP pain and 19 without, were recruited and completed a series of freestyle lifting trials (3 sets of box lifted for a total of 36 lifts). Verbal cues were used to modulate their expectations about the boxes’ weight: no expectation, lighter or heavier load expectations. Following each set, participants rated their perceived exertion on a visual analog scale. During the lifting protocol, kinematics (time to maximal flexion, angular velocity and joint angles), electromyography muscle activity (erector spinae and quadriceps) and center of pressure displacement were simultaneously recorded. Results Results showed that time to maximal knee flexion was modulated by load expectations in both groups (mean lighter load expectations = 1.15 ± 0.32 sec.; mean heavier load expectations = 1.06 ± 0.31 sec.). Results also showed a load expectations X group interaction for that time to maximal hip and lumbar flexion. Time to maximal hip flexion decreased with heavier load expectations (mean lighter load expectations = 1.20 ± 0.36; mean heavier load expectations = 1.16 ± 0.33) for cLBP only. Time to maximal lumbar flexion increased with heavier load expectation (mean lighter load expectations = 1.41 ± 0.27 sec.; mean lighter load expectations = 1.46 ± 0.29 sec.) for participants without LBP. However, no difference in lumbar, hip nor knee angles were observed between groups or conditions. Results highlighted significant load expectation effects for erector spinae electromyography activity, as lower muscle activations was observed for both groups with heavier load expectations (mean = 0.32 ± 0.15), compared to lighter load expectations (mean = 0.52 ± 0.27). Force plates analyses did not reveal any significant load expectation effects. Conclusion Present findings showed that load expectations modulate movement strategies and muscle activation similarly but not identically in individuals with chronic low back pain and healthy adults during freestyle lifting. Results of the present study partially differ from previous studies and suggest only minor differences in lifting strategies between healthy individuals and individuals with cLBP experiencing low level of pain and disability. More studies are needed to investigate the potential role of load expectations in the development and persistence of chronic low back pain.

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