The SHAPE Project (Hospital System for Physical Activity and Active Participation) After Hospitalized Decompensation of Respiratory Chronic Diseases

Risk of Sarcopenia will be assessed by change in scoring at the SARC-F Questionnaire from hospital discharge to 4 month follow-up. The SARC-F Questionnaire is a simple five-question questionnaire about strength, walking ability, chair rise, stair climbing, and falls. The total score ranges from 0 to 10 points. A score <4 is considered at low risk for sarcopenia and a score ≥ 4 indicates a risk of sarcopenia and predictive physical limitations. Based on the SARC-F score at V1 will be categorized as: improvement (in patients scoring ≥ 4 at V0, if score <4 at V1), no change (if score at V0 and V1 do not shif risk) and worsening (if patients scoring <4 at V0, score >= 4 at V1)

Assessment by the 6-minute walk test (6MWT) at visit 0 (hospital discharge) and at visit 1 (4 months after hospital discharge). The 6MWT is a submaximal cardiorespiratory exercise test that consists of measuring the maximum distance a person can walk on a flat surface in 6 minutes. A clinical improvement is considered by an median increase of 30 meters

Assessment through the General Quality of Life Questionnaire (EuroQol-5D) calculating the change in the EuroQol-5D scores between V0 and V1. Health is evaluated across five dimensions: Mobility, Self-Care, Usual Activities, Pain/Discomofort, and Anxiety/Depression. Answers range from 1 (no problems) to 5 (extreme/unable to). The 5-digit code is converted into a single summary number using Value Sets applying country-specific formulas. A score of 1.0 represents perfect health (11111), while 0.0 represents death. Some highly severe health states (like 55555) can result in a score below 0 indicating values as "worse than death." The average Spanish score sits around 0.74 to 0.90. The Minimal Clinically Important Difference (MCID) is the smallest change a patient perceives as beneficial and it will be determined by a positive range between 0.04 and 0.15 from V0 to V1. The percentatges of patients achieving a positive MCID will be compared between groups (intervention vs control).

Assessment of Symptoms of Depression and/or Anxiety by the Goldberg Anxiety and Depression Scale (GADS). GADS is an 18-item clinical screening tool where the patient responds with either Yes or No based on how they have been feeling over the past month. It is structured by two subescales: anxiety (questions 1-9) and depression (qüestions 10-18) considering anxiety if >= 4 affirmative responses for the anxiety subscale and >= 2 affirmative responses for the depression subscale. The clínical response will be categorized as remission (if the Post-treatment score is below the diagnostic threshold (Anxiety ≤ 4 / Depression ≤ 2), as Response (Partial) if Score dropped by ≥ 2 points, but remains at or above the threshold, No Change if Score changed by only 1 point or remained exactly the same and Worsening if Score increased by ≥ 2 points. The percentatges of patients achieving remission, partial response, no change or worsened will be compared between groups (interventional vs control)

Muscle strenght will be assessed by the Handgrip Strength (dynamometer). Normal handgrip strength values vary according to age, sex, and dominant hand, generally being higher in men than in women. A clinical indicator of frailty is a strength < 27 kg in men and < 16 kg in women. The participant exerts maximum grip strength for 3 seconds, with a 1-minute rest between each repetition, performing three attempts. The maximum value of the three attempts will be recorded for each hand, and the dominant hand will be specified. In older adults, the Standard MCID will be an improvement of 2.0 to 3.5 Kg from V0 to V1. The percentatges of patients achieving this MCID will be compared between the interventional group and the control group

Muscle quantity tracking focuses on absolute dimensional loss or gain and it will be assessed by calculating the Muscle Thickness (MT) according to the length from the femur to the upper limit of the rectus femoris. A cutoff point was established for the diagnosis of low muscle mass in the rectus femoris in elderly subjects: 20 mm in men and 16 mm in women. A clinical positive shift will be defined as a change of ≥ 2 mm from V0 to V1. The percentatges of patients achieving this MCID will be compared between the interventional group and the control group