The Effects of a TRX Exercise on Isokinetic Muscle Strength and Living Physical Fitness in Elderly Women

2021 ◽  
Vol 30 (4) ◽  
pp. 995-1002
Author(s):  
Bong-Gil Choi ◽  
Hyoung-Ki Yoon
Keyword(s):  
Muscle Strength ◽  
Physical Fitness ◽  
Elderly Women ◽  
Isokinetic Muscle Strength

scholarly journals Effects of Exercise on Physical Fitness and Strength According to the Frailty Level of Female Elderly with Hypertension

2020 ◽  
Vol 29 (4) ◽  
pp. 368-376
Author(s):  
Kyung-Wan Baek ◽  
Min Chul Lee ◽  
Tae-Bong Jeon ◽  
Jun-Il Yoo ◽  
Jin Sung Park ◽  
...  
Keyword(s):  
Body Composition ◽  
Muscle Strength ◽  
Physical Fitness ◽  
Exercise Intervention ◽  
Elderly Women ◽  
Biceps Brachii ◽  
Elderly Subjects ◽  
Control Group ◽  
Blood Lipid Profile ◽  
Test Record

PURPOSE:The purpose of this study was to determine the effects of exercise on physical fitness and strength according to their frailty level of the hypertensive female elderly aged over 65.METHODS: Female elderly subjects (>65 year) with hypertension (n=90) were classified according to their level of frailty (Fr_), and were divided into control group (Ctrl) and exercise group (Ex). Hypertensive female elderly in exercise groups were subjected to 8-week combined exercise of aerobic (stretching and walking) and resistance (elastic band and weight training) exercise twice per week (50 minutes×2 times×8 weeks). Body composition, functional fitness and skeletal muscle strength were evaluated as main variables (Ctrl, n=27; Ex, n=23; Fr_Ctrl, n=17; Fr_Ex, n=23).RESULTS: Body composition, blood pressure, fasting glucose level (include hemoglobin A<sub>1c</sub>) and blood lipid profile did not interact with the exercise intervention and frailty level. Records of 30-second chair stretch test, two-minute walk test and arm curl increased after exercise intervention regardless of frailty level. The strength of quadriceps femoris increased after exercise intervention regardless of the level of frailty. However, the strength of biceps femoris (<i>p</i><.001), biceps brachii (<i>p</i><.05) and triceps brachii (<i>p</i><.001) was significantly increased in the Fr_Ex compared to pre-intervention of exercise.CONCLUSIONS: The classification according to the level of frailty in hypertensive female elderly can have a significant effect on the degree of muscle strength improvement by exercise intervention. In addition, this study newly discovered that the improvement of 30-s chair stretch test record in the hypertensive elderly women appeared faster than the improvement of the rapid-gait test record independently of the level of frailty.

scholarly journals The Effects of 20-Weeks Tai-Chi Exercise Program on the Isokinetic Muscle Strength of Elderly Women

2012 ◽  
Vol null (26) ◽  
pp. 145-160 ◽  
Author(s):  
Han-joon Lee ◽  
김정훈 ◽  
Jun, Ig-Sung ◽  
김경한 ◽  
Kye Soon Park ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Tai Chi ◽  
Elderly Women ◽  
Exercise Program ◽  
Isokinetic Muscle Strength ◽  
Tai Chi Exercise

ACTN-3 Genotype, Body Composition, Fitness, and +Gz Tolerance in Senior Cadets

2019 ◽  
Vol 90 (12) ◽  
pp. 1055-1060 ◽  
Author(s):  
Seunghwan Shin ◽  
Hyunseok Jee
Keyword(s):  
Body Composition ◽  
Muscle Strength ◽  
Physical Fitness ◽  
Air Force ◽  
Body Fat ◽  
Peak Torque ◽  
Air Force Academy ◽  
Leg Extension ◽  
Isokinetic Muscle Strength ◽  
Significant Difference

BACKGROUND: This study aimed to investigate the relationships among ACTN-3, body composition, fitness, and +Gz tolerance for senior cadet training development and their safe task performance.METHODS: The subjects were all senior cadets (N = 68) at the Korea Air Force Academy. All cadets are required to pass a physical fitness test (3-km running, sit-ups, push-ups) and body composition test on a semiannual basis. Isokinetic muscle function (strength and endurance), +Gz test (+6 Gz ⋅ 30 s−1), and target gene (ACTN-3) were analyzed.RESULTS: The effects of body composition and physical fitness along with the relationship of the ACTN-3 genotype to the +6 Gz test results were determined. Consequently, no significant difference was found concerning the effect of ACTN-3 on the +6 Gz test result, body composition, and physical fitness; however, body fat (%) and isokinetic muscle strength (peak torque right leg extension and left leg flexion) showed significance between the pass and failure groups in the +Gz test.DISCUSSION: The cadets of the Korea Air Force Academy showed dominant fast genetic expression type based on their ACTN-3 genotype [RR and RX (N = 51, 75%) > XX (N = 17, 25%)]. Body fat (%) and isokinetic muscle strength (PT R EX, L FL) can be more effective predictors in the +6 Gz test for cadet training. Another speculation is that more RR- and RX-type-oriented training can promote cadets’ Gz tolerance from the isokinetic factors such as high peak torque and low fatigue index.Shin S, Jee H. ACTN-3 genotype, body composition, fitness, and +Gz tolerance in senior cadets. Aerosp Med Hum Perform. 2019; 90(12):1055–1060.

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