References
- Statistics Korea. (2019). Population Projections for Korea.
- Health Insurance Review & Assessment Service. (2018). Health insurance medical statistics.
- CT. Cigolle et al. (2015). The epidemiologic data on falls, 1998-2010: more older Americans report falling. JAMA Intern Med, 175(3), 443-445. https://doi.org/10.1001/jamainternmed.2014.7533
- J. J. Cho & W. H. Lee. (2018). Effects of Apply to Home-based Exercise Program that Consisted of Lower Extremity Exercise on Isokinetic Knee Strength in Elderly at Nursing Home. Archives of Orthopedic and Sports Physical Therapy, 14(1), 1-9. https://doi.org/10.24332/aospt.2018.14.1.01
- T. S. Suh, S. Y. Jo & B. M. Kwon. (2010). The Effects of the "Resistant Isometric Quadriceps Femoris Muscle Strengthening Exercise" on Degenerative Knee Arthritis Patients. Journal of the Korean Academy of Health and Welfare for Elderly, 1(2), 123-136.
- E. M. Roos & N. K. Arden. (2016). Strategies for the prevention of knee osteoarthritis. Nat Rev Rheumatol, 12(2), 92-101. https://doi.org/10.1038/nrrheum.2015.135
- M. Fransen, S. McConnell, A. R. Harmer, M. Van der Esch & K. L. Simic. (2015). Bennell. Exercise for osteoarthritis of the knee: a Cochrane systematic review. Br J Sports Med, 49(24), 1554-1557. https://doi.org/10.1136/bjsports-2015-095424
- S. Studenski et al. (2011). Gait speed and survival in older adults. JAMA, 305(1), 50-58. https://doi.org/10.1001/jama.2010.1923
- Y. L. Choi, O. K. Moon, B. K. Kim & W. S. Choi. (2014). Effects of Isometric Exercise Using Biofeedback on the Changes of Q-Angle, Median frequency in Knee Osteoarthritis. The Korean Entertainment Industry Association, 2014(5), 131-136.
- S. M. Cha, M. H. Kang, D. C. Moon & J. S. Oh. (2017). Effect of the Short foot Exercise Using an Electromyography Biofeedback on Medial Longitudinal Arch During Static Standing Position. Physical Therapy Korea, 24(1), 9-18. https://doi.org/10.12674/ptk.2017.24.1.009
- Y. H. Kim & J. H. Park. (2018). Effects of Muscle Activity and Balance in Functional Ankle Instability of Women's University Students after Bio-feedback training. Archives of Orthopedic and Sports Physical Therapy, 14(1), 29-36. https://doi.org/10.24332/aospt.2018.14.1.04
- M. H. Jang et al. (2018). Validity and Reliability of the Newly Developed Surface Electromyography Device for Measuring Muscle Activity during Voluntary Isometric Contraction. Comput Math Methods Med, 29.
- M. T. Kristensen, N. B. Foss & H. Kehlet. (2007). Timed "Up & Go" Test as a Predictor of Falls Within 6 Months After Hip Fracture Surgery. Phys Ther, 87(1), 24-30. https://doi.org/10.2522/ptj.20050271
- S. Shea & G. Moriello. (2014). Feasibility and outcomes of a classical Pilates program on lower extremity strength, posture, balance, gait, and quality of life in someone with impairments due to a stroke. J Bodyw Mov Ther, 18(3), 332-360 https://doi.org/10.1016/j.jbmt.2013.11.017
- H. Kern et al. (2014). Electrical Stimulation Counteracts Muscle Decline in Seniors. Front Aging Neurosci, 6(189).
- S. Zampieri et al. (2015). Physical Exercise in Aging: Nine Weeks of Leg Press or Electrical Stimulation Training in 70 Years Old Sedentary Elderly People. Eur J Transl Myol, 25(4), 237-242. https://doi.org/10.4081/ejtm.2015.5374
- S. Dal Corso et al. (2007). Skeletal muscle structure and function in response to electrical stimulation in moderately impaired COPD patients. Respir Med, 101(6), 1236-1243. https://doi.org/10.1016/j.rmed.2006.10.023
- G. W. Kim & J. S. Kim. (2014). Analysis of Surface EMG Power Spectrum and Muscle Fatigue Depending on the Variable of Neuromuscular Electrical Stimulation. J Korean Soc Phys Ther, 26(5), 280-289.
- C. F. Gomes da Silva, F. X. Lima, E Silva, K. B. Vianna, G. D. S. Oliveira, M. A. Vaz & B. M. Baroni. (2018). Eccentric training combined to neuromuscular electrical stimulation is not superior to eccentric training alone for quadriceps strengthening in healthy subjects: a randomized controlled trial. Braz J Phys Ther, 22(6), 502-511. https://doi.org/10.1016/j.bjpt.2018.03.006
- A. Ibrahim, D. K. A. Singh & S. Shahar. (2017). 'Timed Up and Go' test: Age, gender and cognitive impairment stratified normative values of older adults. PLoS One, 12(10).
- C. Medrinal et al. (2018). Comparison of exercise intensity during four early rehabilitation techniques in sedated and ventilated patients in ICU: a randomised cross-over trial. Crit Care, 22(1), 110. https://doi.org/10.1186/s13054-018-2030-0
- A. W. Subudhi, A. C. Dimmen & R. C. Roach. (2007). Effects of acute hypoxia on cerebral and muscle oxygenation during incremental exercise. J Appl Physiol (1985), 103(1), 177-183. https://doi.org/10.1152/japplphysiol.01460.2006