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SPORTS MEDICINE SOLUTIONS
Hamstrings

High incidence rate, slow healing, persistent symptoms, and a historically high rate of recurrence have made hamstring injuries a challenge for both athletes and the clinical team responsible for their recovery.

There is mounting evidence that the risk of re-injury can be minimized by using rehabilitation strategies that incorporate neuromuscular control exercises and eccentric strength training, combined with objective measures to assess recovery and readiness to return to sport.¹

System 4 Supports Hamstring Protocols

Regardless of whether you have an existing process for protecting and strengthening hamstrings, the objective test protocols offered with the Biodex™ System 4 will provide valuable, isolated muscle-performance data. Test results, combined with established targeted outcomes, can be used for pre-emptive injury screening, managing rehabilitation and determining readiness for returning to play.

NEW Return-to-Play Reports

Biodex introduces the first Return-to-Play report for hamstring injury, now available with System 4 Advantage BX™ software:

• Shows clear pass/fail test results
• Grounded in the latest research
• Simplifies communication with athletes, physicians and third-party payers
• Supports two commonly used hamstring rehab protocols: 
• Lengthened State - Multiple Angle Comparison
• Mixed H/Q Ratio

Upgrade path available for existing System 4 and System 3 (rev. 2) dynamometers.

Protocol #1: Lengthened State - Multiple Angle Comparison Test Examines isometric bilateral flexion peak torque symmetry where the limb position puts the hamstring in a lengthened (stretched) state. Passive stretch is the inherent force (or torque) produced by the hamstring in the lengthened state. When deficits are within 10%, predisposition to reinjury is significantly reduced. NOTE: This Protocol requires 830-550 Hamstring Attachment. Use of any attachment other than the 830-550, is outside proper and intended use.

Lengthened State - Multiple Angle Comparison hamstring return-to-play report

Download Abstract: ECCENTRIC STRENGTHENING AT LONG MUSCLE LENGTHS REDUCES HAMSTRING STRAIN RECURRENCES. Tyler, et al; Orthopedic J Sports Med. Aug, 2014. View Abstract

Protocol #2: Mixed H/Q Ratio Test Uses a ratio of eccentric and concentric flexion peak torque where, if the ratio exceeds 1.4, hamstring injury is greatly diminished. Now available with Advantage BX™ 5.3. NOTE: This Protocol utilizes the standard Biodex Knee Attachment. Download Study: STRENGTH IMBALANCES AND PREVENTION OF HAMSTRING INJURY IN PROFESSIONAL SOCCER PLAYERS. Croisier, et al; The American Journal of Sports Medicine. April 30, 2008. View Study

Mixed Ratio Hamstring return-to-play report