{"product_id":"functional-characteristics-of-the-hamstring-muscles-in-low-back-pain-von-jamie-mannion","title":"Functional Characteristics of the Hamstring Muscles in Low Back Pain","description":"\u003cp\u003eLow back pain (LBP) patients may have reduced hamstring extensibility. The Instrumented Straight Leg Raise  (ISLR) has been proposed as an objective extensibility measure; however, appropriate quantification methods,  and test-retest reliability, are lacking. The lumbar flexion-relaxation response (FRR) is abnormal in LBP  patients. The hamstring FRR has been identified in asymptomatic participants, but has not been explored in LBP  participants. The strength of the lumbar and hip muscles are typically reduced in LBP participants, however the  strength characteristics of the hamstring muscles is unknown. The ISLR appears reliable. The elastic moment  correlated with flexibility, electromyographic activity, body-mass, age and gender. Male LBP participants had  greater elastic moments than male controls, and female LBP participants had greater pelvic rotation than female  controls. LBP participants presented with a reduced hamstring FRR, and higher hamstring eccentric\/concentric  strength ratio at 30º\/s.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838339351\"\u003e\u003ch3\u003eAn Investigation of the Flexion-Relaxation Response, Extensibility, and Strength of the Hamstring  Muscles\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838339351","offer_id":39498955227229,"sku":"9783838339351","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/8f5581c9-4a06-4de5-bf3c-6502f134046c.jpg?v=1757655912","url":"https:\/\/shop.autorenwelt.de\/en\/products\/functional-characteristics-of-the-hamstring-muscles-in-low-back-pain-von-jamie-mannion","provider":"Autorenwelt Shop","version":"1.0","type":"link"}