Effectiveness of a Physical Recovery Program for Head and Neck Cancer Patients (3C-CUIDATE)

Questionnaire EORTC QLQ-C30 was used for measuring quality of life

Questionnaire EORTC QLQ-H&N-35 was used for measuring quality of life specifically in survivors of head and neck cancer

Visual Analogue Scale was used for evaluating pain intensity at cervical, temporomandibular joint, face and shoulder levels bilaterally.

This consisted of a 10 cm horizontal line with the words "no pain" at the left extreme (0) and "pain as bad as it could be" at the right extreme (10)

Pressure algometry (Force Dial DFK 20 analogue algometer, Wagner, Greenwich, USA) was assessed over the temporalis, masseter, upper trapezius and levator scapulae muscles and the C5-C6 zygapophyseal joint, the sternoclavicular joint and the tibialis anterior muscle as a distant reference muscle.

Shoulder active range of motion (AROM) was assessed with a two-arms goniometer joined by a 360º protractor with the patient lying on a supine position. Cervical AROM was measured in a upright sitting position with a range of motion instrument (Performance Attainment Associates, Spine Products)

Shoulder pain and disability index (SPADI) was used to evaluate pain and disability perception of the patients at shoulder level.

A digital dynamometer with adjustable grip (TKK 5101 Grip-D; Takei, Tokyo, Japan) was used to assess handgrip strength. Patients were standing in a upright position with the elbow in complete extension. Test was performed 3 times per hand, alternating both hands, with a 1-minute rest between trials.

Endurance of deep cervical flexor muscles was assessed with the deep cervical flexor endurance test, with the patient in a supine lying position with the examiner's hands under his/her head and being told to fold the chin completely to the sternum and raising the head as minimum as possible without touching examiner's hands. Time is counted from when the patient lift his/her head until when he/she can no longer maintain the position.

International Fitness Scale (IFIS) was used to evaluate perceived physical fitness. It contains 4 physical fitness elements (cardiorespiratory endurance, muscular strength, speed/agility and flexibility) to categorize into 5 options, from very poor to very good

Mouth opening was evaluated with a sliding calliper measuring the inter-incisor distance asking the patients to open the mouth as maximum as possible

The presence of temporomandibular disorders (TMD) was assessed with the Fonseca Anamneses Index, that classifies TMD as no dysfunction, light dysfunction, moderate dysfunction or severe dysfunction

Piper Fatigue Scale - revised (PFS-r) was used to measure fatigue perception in head and neck cancer patients. It consists of 22 items divided into 4 subscales: behaviour, affection, emotional and cognitive. Each item is evaluated in a Visual Analogue Scale ranging from 0 to 10.

Fatigue perceived at the assessment moment was measured with a Visual Analogue Scale ranging from 0)no fatigue to 10) maximum fatigue perceived

To evaluate sleep quality, Pittsburgh Sleep Quality Index (PSQI) was the instrument used. It consists of 19 self-rated questions related to sleep quality, including estimates of sleep duration and latency and the frequency and severity of specific sleep-related problems.

Sleeping disorders were evaluated with a Visual Analogue Scale rating from 0)no disturbances to 10)impossible to sleep

Perception of anxiety at the assessment moment was measured with a Visual Analogue Scale rating from 0)no anxiety to 10)maximum anxiety perceived

Eating Assessment Tool (EAT-10) was used to evaluate self-reported swallowing impairments. It is a 5 point Likert scale rating from no impairment to severe problem. The sum of all items contained on the questionnaire is used as the overall score, suggesting an abnormal swallowing when score is higher than 3

A Visual Analogue Scale was used to register swallowing difficulties, ranging from 0)no problems to 10)impossible to swallow