Effects of Low-volume HIIT Versus MICT on Physical Performance in Older Adults With Possible Sarcopenia
Sarcopenia
About this trial
This is an interventional treatment trial for Sarcopenia
Eligibility Criteria
Inclusion Criteria: individuals aged 60 years or older, living in the community Able to walk with or without assistive devices Recovery from COVID-19 over two months With a preliminary screening of SARC-F score ≥4 or calf circumference less than 34cm for man, 33cm for woman will be invited to strength and physical performance measurement Handgrip strength less than 28 kg for man, 18 kg for woman and/or gait speed<1m/s and/or 5-time chair stand test ≥12 s. Exclusion Criteria: Inability to undertake exercise due to neuromuscular and/or musculoskeletal limitations Uncontrolled hypertension (systolic BP>170 or diastolic BP>100 mmHg) Reported chronic cardiopulmonary insufficiency in medical history Reported vital organ failure and malignancy in medical history Cognitive impairments (mini-mental test score<21) with low compliance History of lower limb surgeries, fractures, neurological problems, systemic problems, and any other contraindications for aerobic training will be excluded.
Sites / Locations
- Wuhan Brain HospitalRecruiting
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
High-intensity interval training group
Moderate-intensity continuous training group
Each ergometer cycling training session consists of a warm-up phase lasting two minutes, five interval bouts of one minute each at 76% to 90% of one's HRmax, separated by one minute of passive or low-intensity recovery, and a three-minute cool-down phase. After 4 weeks of the intervention, the minimal intensity that had to be met will be progressively raised (weeks 1-4: 76-85%, weeks 5-7: 85-90%HRmax, respectively). For individuals who are unable to reach 76% HRmax, scores of 15 to 17 (hard to very hard) on the Borg scale will be followed.
During the first four weeks, participants will be advised to modify the pedal cadence and/or resistance of the ergometer to obtain an HR equivalent to 65-70% HRmax, rising to 70-75% HRmax during the final 3 weeks. Each session lasts less than 30 minutes of moderate-intensity continuous ergometer cycling, which starts with a two-minute warm-up and ends up with a three-minute cool-down.