Evaluation of the Statistical Validity of Cervical Spine Measurements-Including Range of Motion, Strength, and Functional Test Results-for Return to Sport in Patients Who Have Undergone Surgery for Cervical Stenosis and/or Herniation.

Inclusion Criteria: * Patient group Patients meeting all the following criteria will be included: * Male or female aged 18 to 40 years * Injury requiring surgery sustained during a sports activity * Participation in sports activity at least once a week * Cervical spine arthrodesis, cervical disc replacement, and/or foraminotomy * Surgery performed by surgeons at the Centre Orthopédique Santy (Lyon) * Inclusion based on the surgeon's decision during the 45-day post-operative visit Control group Participants meeting all the following criteria will be included: * Male or female aged 18 to 40 years * Participation in sports activity at least once a week * No history of cervical pathology * No history of surgery involving the shoulder girdle * No neck pain in the month prior to the test In both groups o Patient having signed an informed consent form Subject affiliated with or a beneficiary of a social security scheme Exclusion Criteria: Patient group Patients meeting any of the following criteria will be excluded: o Medical contraindication Control group Participants meeting any of the following criteria will be excluded: * Reported history of spinal or upper-limb injury within the last 12 months * Reported history of upper-limb surgery In all cases, the following will be excluded: * Protected individuals: adults under guardianship, curatorship, or other legal protection; individuals deprived of liberty by judicial or administrative decision * Pregnant, breastfeeding, or recently delivered women