Effects of an eight-week physical exercise program on low back pain and function in fruit workers: A randomized controlled trial.

Background: Low back pain is prevalent in workers' health and functional performance.

Objective: To evaluate the effects of a physical exercise program on low back pain and disability in fruit workers.

Methods: This randomized controlled trial assigned 44 workers (37 ± 9 years) to two groups.

Reliability of the Closed Kinetic Chain Upper Extremity Stability Test in young adults.

Objective: To analyze the reliability indicators of CKCUEST, and to investigate how many sessions are necessary to find a stable score.

Design: Reliability study.

Setting: Biomechanics laboratory.

Can the Use of Unstable Surfaces and Instruction for Conscious Abdominal Contraction Increase the EMG Activity of the Periscapular Muscles During the Dynamic Push-Up?

Context: It is believed that conscious abdominal contraction (CAC) during exercise encourages greater periscapular activation through existing myofascial connections. On the other hand, it is postulated that the use of unstable surfaces would promote greater neuromuscular demand.

Objective: To analyze the effect of CAC on periscapular muscle activity during push-up plus exercise on stable and unstable surfaces and to evaluate the correlation between electromyographic (EMG) activity of the serratus anterior (SA) and abdominal oblique muscles.

Shoulder Muscle Activation Levels During Exercises With Axial and Rotational Load on Stable and Unstable Surfaces.

This study evaluated the effects of instability on the EMG activity of scapular stabilizing and upper limb muscles during exercises with axial and rotational load. Twenty male volunteers (20.9 ± 1.