Chinese exercise, particularly in the retired community, seems to be socially grounded. In the mornings, dances are held in public parks; these gatherings may include Latin dancing, ballroom dancing, tango, or even the jitterbug. Dancing in public allows people to interact with those with whom they would not normally interact, allowing for both health benefits and social benefits.
As you strengthen your abs, it's vital to tone the back of the body as well. Lie on your back with your knees bent and your feet hip-width apart. Keep your arms at your sides and raise your hips without arching your back. Tighten the muscles of your buttocks and hamstrings, and hold for five breaths. Lower down one vertebra at a time to the floor if you're stopping here, or go on to the advanced posture.
Finally, although performing the lower trapezius strengthening exercise as described by Kuhn (standing with the arms at the sides and moving the shoulders into extension against resistance of an elastic band) is appropriate for individuals with moderate to high pain levels or altered scapulothoracic movement patterns, other exercises have demonstrated5 greater electromyographic activity levels of the lower portion of the trapezius muscle. The prone “Y” exercise (arm raised in line with the fibers of the lower trapezius) produces high levels of lower trapezius electromyographic activity and might be more effective for strengthening this muscle.5 After an individual's pain resolves and scapulothoracic movement patterns normalize, an athletic trainer or physical therapist might progress the individual to a more challenging position, such as the prone “Y” exercise.
Many of the things we do for fun (and work) count as exercise. Raking the yard counts as physical activity. So does ballroom dancing and playing with your kids or grandkids. As long as you're doing some form of aerobic exercise for at least 30 minutes a day, and you include two days of strength training a week, you can consider yourself an "active" person.
Around thirty years ago, Andersen et al.  developed a novel exercise model (i.e. one leg dynamic exercise, OLDE) allowing dynamic isotonic contractions of the knee extensor muscles. This exercise model isolates the knee extensor muscles via an active knee extension and passive knee flexion, and due to the reduced muscle mass involved, this exercise is not limited by cardiorespiratory function . Therefore, this model was extensively used to investigate the effect of OLDE on the cardiorespiratory system (e.g. ), skeletal muscle physiology (e.g. ) but also with patients suffering from cardiorespiratory limitations [14, 15] or for studying mechanisms regulating circulatory response to rhythmic dynamic exercise [6, 16]. More recently, high intensity OLDE has been used to investigate CNS processes involved in the regulation of muscle fatigue and endurance performance [8, 11, 17, 18]. Despite being recently used to investigate muscle endurance, the reliability of high intensity OLDE has not been tested. Reliability can be defined as the consistency of a performance measure, and should be established for any new measurement tool [19, 20]. Furthermore, reliability of a protocol can be used to estimate the sample size required for an appropriate statistical power . The main aim of this study was to establish the reliability of high intensity OLDE as a measure of muscle endurance. Additionally, as the sensitivity of a protocol reflects its ability to detect small changes in performance, we also calculated the smallest worthwhile change as a measure of sensitivity .
The benefits of exercise have been known since antiquity. Dating back to 65 BCE, it was Marcus Cicero, Roman politician and lawyer, who stated: "It is exercise alone that supports the spirits, and keeps the mind in vigor." Exercise was also seen to be valued later in history during the Early Middle Ages as a means of survival by the Germanic peoples of Northern Europe.
This study was supported by grants from the Liaison Committee for education, research and innovation in Central Norway, The K.G Jebsen Foundation for medical research and the Research Council of Norway. The funding organizations had no role in the design and execution of the study, in the collection, analysis, and interpretation of the data, or in the preparation, review or approval of the submitted manuscript.
Recruiting lasted 6 months starting from September 2013. Participants were recruited by means of family doctors to whom the goal of the study was explained. The recruitment flow chart is shown in Figure 1. Three hundred and fifty people aged ≥ 65 were invited to participate. Of these, 51.4% agreed to be included in the screening list while 48.6% refused to participate, mainly for family reasons such as illness/hospitalization/old age of a family member. Forty people were found eligible to participate in the research protocol. Randomly, twenty were assigned to VE and twenty to the control group. The latter were instructed not to take part in any physical activity throughout the study period. All the selected participants signed an informed consent. The study was performed according to the Declaration of Helsinki and approved by the local ethics committee on September 23, 2013.