1. Role of the kinetic chain in shoulder rehabilitation: does incorporating the trunk and lower limb into shoulder exercise regimes influence shoulder muscle recruitment patterns? Systematic review of electromyography studies
- Author
-
Jeremy Lewis, Mark Halaki, Jo Gibson, Gillian Yeowell, Karen A. Ginn, Chris Morgan, and Eleanor Richardson
- Subjects
musculoskeletal diseases ,medicine.medical_specialty ,Medicine (General) ,shoulder ,medicine.medical_treatment ,Deltoid curve ,Physical Therapy, Sports Therapy and Rehabilitation ,Review ,Electromyography ,Biceps ,rehabilitation ,sports rehabilitation programs ,03 medical and health sciences ,0302 clinical medicine ,Physical medicine and rehabilitation ,R5-920 ,medicine ,Orthopedics and Sports Medicine ,Rotator cuff ,030222 orthopedics ,Rehabilitation ,medicine.diagnostic_test ,business.industry ,exercise rehabilitation ,030229 sport sciences ,musculoskeletal system ,Trunk ,evidence based review ,body regions ,medicine.anatomical_structure ,Motor unit recruitment ,Trapezius muscle ,business - Abstract
ObjectiveTo investigate the influence of trunk and lower limb motion on electromyography (EMG) muscle activity and recruitment patterns around the shoulder.DesignSystematic review.Data sourcesMEDLINE, CINAHL, PEDro, AMED, PubMed, Cochrane Central Register of Controlled trials, Cochrane Database of Systematic reviews, SportsDiscuss and PROSPERO.Eligibility criteriaStudies investigating both multiregional kinetic chain (KC) shoulder exercisesandlocalised non-kinetic chain (nKC) shoulder exercises in healthy subjects under the same experimental conditions were included in this review.ResultsKC exercises produced greater EMG activation levels in 5 of 11 studies for the lower trapezius. Of the remaining studies, five found no difference between the exercise types and one favoured nKC exercises. KC exercises produced greater EMG activation levels in 5 of 11 studies for the serratus anterior. Of the remaining studies, three reported the opposite and three found no significant difference between the exercise types. nKC exercises produced greater EMG activation in infraspinatus in three of four studies. KC exercises produced the lowest trapezius muscle ratios in all studies. Studies investigating the upper trapezius, middle trapezius, supraspinatus, subscapularis, biceps brachii, latifissimus dorsi, pectoralis major, deltoid, and trapezius and serratus anterior ratios showed inconsistency.ConclusionThis review found evidence that integrating the KC during shoulder rehabilitation may increase axioscapular muscle recruitment, produce lower trapezius muscle ratios and reduce the demands on the rotator cuff. Stepping appears preferable to squatting.PROSPERO registration numberCRD42015032557, 2015.
- Published
- 2020