The various erector spinae muscle
actions (isometric, concentric and eccentric) during lifting and lowering should also be given suitable consideration when designing back exercise programmes.
Previous studies (Sung et al., 2009; 2013) showed that patients with the chronic low back pain have lower average EMG frequencies in the thoracic part of the erector spinae muscles
compared with the lumbar part.
The lifting belt reduced the peak normalized EMG of th e erector spinae muscles
on average by 3% during asymmetric loading, though peak normalized EMG was increased by 2% during symmetric loading.
Gibbins, "Sensory nerve fibers containing calcitonin generelated peptide in gastrocnemius, latissimus dorsi and erector spinae muscles
and thoracolumbar fascia in mice," Neuroscience, vol.
Muscle activity of the upper (UES) and lower (LES) part of the erector spinae muscle
, upper (URA) and lower (LRA) part of the rectus abdominis muscle, and splenius muscle (SPL) with different vibration peak amplitudes (1.3 mm and 3.9 mm) and knee angles (30[degrees] and 45[degrees]) during whole-body vibration (WBV) and without vibration stimulus (CON).
EMG activity of the erector spinae muscles
were significantly less activated under the "familiar" condition and trapezius and biceps brachii activation was similar between the experimental conditions.
The ROIs were drawn following the contour of the erector spinae muscle
on both sides and encompassing trabecular bone of vertebral body (as shown in Figure 1).
Spectral analyses of the EMG data also showed fatigue development of the erector spinae muscles
in the majority of participants in all groups.
To reduce tension on iliopsoas bachward through erector spinae muscles
causes muscle fatigueness.
Another important aspect refers to the fact that the postural attitude is not conditioned only by the muscle tone, the ligament strength and the erector spinae muscles
, but also by the human being's personality, that is why it was called the "psychic drive".
Kyphotic deformity develops at the site of the spinal dysraphism as a result of the lateralised erector spinae muscles
becoming perverted flexors of the spine.
Being careful to avoid the vertebrae, roll the ball up and down the erector spinae muscles
that run along the sides of the spine while pressing into the wall at the same time.