This research was based on the reality that there is no motor ability exercise model for football players with cerebral palsy. The coach has difficulty in handling the physical/motor ability issues, such as falling more easily, difficulty reversing and changing the direction quickly, less balance, and poor coordination. The main research problem is how to develop Motor Ability Exercise Model with Circuit Method for Indonesian CP football team. The research purpose was to produce a special circuit training model for CP football. The study design was used quasi experiment. The research subjects included 12 players of the Indonesian CP Football team for APG Malaysia 2017. The data collection technique used a modification of motor ability test and development (Research and Development). The research was started from November 2016 and has been completed in June 2017. The research result was the development of a motor ability exercise model with the Circuit Method for the Indonesian CP football team, which effectively improved the motor ability of the Indonesian CP Football Team in National Training for the 2017 ASEAN Paragames Malaysia. This included (1) a motor ability exercise model with circuit model for flexibility, (2) a motor ability exercise model with circuit model for strength (3) a motor ability exercise model with circuit model for balance and (4) motor ability exercise model with circuit model for coordination.
The force in the pencak silat jejag kick is called the moment of force or torque. The force moment is a measure of the force that can cause an object to rotate around the axis where the axis of rotation is located at the knee joint with the length of the calf as the length of the arm (the radius of the rotation axis). This research was conducted using laboratory biomechanical analysis. The research sample consisted of three male athletes of pencak silat. Previously, anthropometric measurements were carried out in the form of measuring calf length and calf muscle mass, then taking videos of athletes doing jejag kick movements in a static state with targets, which were then analyzed by kinovea. Research results showed that the technique of the jejag kick pencak silat produces a force called the moment of force or torque. Sample 1 produces a force moment of -12.00 Nm, sample 2 produces -5.53 Nm, and sample 3 produces -8.73 (negative sign means the direction of the pencak silat jejag kick is counterclockwise). The magnitude of the force moment is influenced by the angle of knee extension and the radius of the rotation axis. The amount of force moment affects the kick speed. In the speed of a movement, there is a tendency to keep moving, which is called the moment of inertia. The fasterthe movement, the greater the moment of inertia. The result is a force moment, influenced by the rotational kinetic energy that is owned and requires effort. Every effort is made to produce a force moment; it takes power to drive the effort. This means that the greater the angle of extension and the longer the calf, the greater the force moment, the faster the kick speed, and the greater the moment of inertia. This requires a large amount of rotational kinetic energy, effort, and power.
High blood pressure (BP) is one of the main modifiable risk factors for cardiovascular disease (CVD) and preventing it greatly reduces the vascular consequences of aging and, along with intensive treatment of hypertension, eliminates a large portion of the burden of CVD-related mortality. Many meta-analyses and studies proved that regular aerobic exercise (AE) reduces BP but most of these studies consider only hypertensive populations or only AE but not resistant exercise or their combination. In this review, we aimed to study the effect of different types of physical activity (PA)/AE on various populations including normotensive, prehypertensive, primary hypertensive, and resistant hypertensive with different comorbidities. We searched PubMed, Web of Science, and Google Scholar for English articles with keywords for physical activity, aerobic exercise, and blood pressure from January 2010 until September 2021. Finally, 24 studies were included. Results showed that chronic or acute AE (long-term or short-term), either alone or as combined with different sessions and programs can reduce systolic and diastolic BP in every group including normotensive, prehypertensive, primary hypertensive, resistant hypertensive individuals and diabetic patients and those with kidney problems but not in people with chronic heart failure. Isometric exercise training showed to be useful in reducing BP in all groups either as low intensity or as high intensity but the rate of reduction was different in terms of gender. AE showed to be effective in terms of BP reduction in a different age range. It can be seen that different types and duration of AE independent of the modality and programs and independent of the BP medical situation of individuals have been successful in terms of BP reduction. For those with chronic heart failure, more concern and help might be needed to decrease BP via exercise.