This research aims to identify whether the effects of video-assisted physical therapy, including home resistance training, is superior to traditional physical therapy, education leaflet for example.

This is an interventional research, single-blind, randomized control trail. We recruit high risk of sarcopenia people (low muscle strength and low physical performance) Two groups of participants are divided into traditional group and video-assisted group, both group are taught the same resisted exercise by physical therapist.

Both group will record his/her baseline activity level with a given pedometer. After one week recording, we started initial evaluation (history taking, physical examination) and intervention.

Participants are taught thera-band resisted exercise, including large musculature of upper and lower extremities, each exercise are conducted 10-15 times for 3 sets.

Traditional group will receive an education leaflet and a notebook to record his/ her daily activity and frequency of exercise to record the compliance.

Video-assisted group will receive a QR code, which contain a website of exercise video on the cloud.

After 3 months intervention, participant will come back to our center for final examination.

Inclusion Criteria:

• Age above 65 years old
• MMSE > 24 points
• walking more than 6 meters independently

Exclusion Criteria:

• people who cannot participate for 3 -day exercise for each week