Since our data is self-reported, we do not know for sure if we have data from all exercise sessions performed throughout the year. Furthermore, subjective measures are susceptible to recall bias, especially among older adults [17, 18]. However, our results are based on nearly 70000 exercise logs, which is the largest data material on exercise patterns in older adults. In addition, exercise logs have an advantage over the widely employed exercise questionnaires where the subject is asked to recall exercise performed in the past as opposed to recording the exercise right after the moment of occurrence, as is the case with exercise logs.
Exercise is a key part of staying healthy, but figuring out how to get more active can be tough. If you’re not used to physical activity, start slow. Go for 10 to 15 minute walks, and work your way up to briskly walking or jogging for 30 minutes daily. Try adding strengthening exercises 2 or 3 days per week, and consider boosting your flexibility with yoga or Pilates classes. Whenever you work out, always listen to your body’s limits, and ask your doctor for advice if you have a history of any medical issues.
Degenhardt B [Internet]. Once upon a time: the evolution of Pilates mat work. 2012 Nov 21 [cited 2015 Aug 30]. Available from:  Pilates swiftly gained prominence with dancers and celebrities, which led to his notoriety as a New York City exercise personality. In 1932, Pilates taught Contrology exercises at the mythological Jacob’s Pillow Dance Festival as he did every summer until 1951.42,43 Degenhardt B [Internet]. Once upon a time: the evolution of Pilates mat work. 2012 Nov 21 [cited 2015 Aug 30]. Available from:
'Time exposed' to training, in both the intervention and control arms of the study, was defined as the length of time an individual spent in training with his or her original training group free of AKP. Patients were thus censored at the point they were removed from training (various time-points through the 14-week training period). Participants who successfully completed training with their original troop were censored at the point of exit (14 weeks). There was no follow-up after the 14-week point.
The good-morning is a weight training exercise in which a barbell, two dumbbells, or no weight at all is held on the shoulders, behind the head. The person bends forward and bows at the hips and recovers to upright. The good-morning is so called because the movement resembles bowing to greet someone. It involves the hamstrings but is primarily used to strengthen the lower back; the degree of knee bend used will change the focus – nearly straight-legged involving the hamstrings most.

In his homeland of Denmark, Müller was a controversial figure. Some conceived his liberal philosophy and promotion of exposing the entire body to the sun to be anti-Lutheran and even pornography. During the last few years of his life, Müller returned to Denmark and vigorously promoted a natural ‘healing spring’, causing further resentment for being perceived as over-spiritual. After Müller’s death in 1938, a memorial bronze statue was erected by the Danish Government, however, he is since mostly forgotten by the general public (Figures 2–4).18 Larsen J. [Internet]. J.P. Muller, a Danish sportsman, world famous – and forgotten. 2015 Aug 30 [cited 2015 Aug 30]. Available from: [Google Scholar]

Barre workouts require minimal equipment. You’ll need a free-standing or wall mounted bar and a mat. Sometimes a soft exercise ball may be used during leg workouts. If you are taking classes in a studio, the required equipment will most likely be provided for you. If you are working out at home, bars can be purchased for home use. You may prefer to be barefoot or purchase socks with grips on the bottom. As with all other workouts, having a water bottle and towel nearby is helpful.

The question used to assess location of exercise had the following response options: home, outdoor in nearby area, nature, gym, indoor- and outdoor sports facility. Indoor- and outdoor sports facility was categorized as “sports facility” due to a low response rate on the outdoor sports facility option (1%). For social setting of exercise, the response options were: exercised alone, exercised together with others, and organized by Generation 100.
Video Abstract for the ESSR 44.4 article “The Age-Associated Reduction in Propulsive Power Generation in Walking” from author Jason R. Franz. Propulsive power generation during push-off in walking decreases with advancing age. A common explanation is an accommodation for sarcopenia and muscle weakness. Yet, muscle strengthening often yields disappointing outcomes for walking performance. We examine the hypothesis that declines in force or power generating capacity of propulsive leg muscles cannot fully explain the age-related reduction in propulsive power generation during walking.
Before anyone’s crowned Cap’n Crunch, remember form is key. Lie on your back with the knees bent and feet flat on the floor. With hands behind the head, place the chin down slightly and peel the head and shoulders off the mat while engaging the core. Continue curling up until the upper back is off the mat. Hold briefly, then lower the torso back toward the mat slowly.
It should be emphasised that, depending on the training status, the time the hormone measurements are taken (diurnal variation), urinary, blood and salivary measures create a great variation inthe interpretation of the results. In pathological situations such as in major depression,15 16 post-traumatic stress disorder,17 and probably also in OTS,10 the glucocorticoids and the brain monoaminergic systems apparently fail to restrain the HPA response to stress. Indeed, we recently showed that a test protocol with two consecutive maximal exercise tests separated by 4 h may give a good indication of the HPA response to stress in well-trained and FO athletes relative to a case of OTS.10 We found a suppression of the HPA response to the second exercise bout in the OTS athlete as opposed to the normal responses. The question can be asked if this method is also a valuable tool to make a distinction between NFO and OTS. Therefore, we report the results of 10 patients who were referred to our laboratory with the diagnosis of suspicion of NFO or OTS.
After performing the two exercises of the Alfredson protocol, you may feel soreness or pain in the back of your ankle by your Achilles' tendon and soreness in your calf muscles.  This soreness will last for a day, and the soreness will become much less as you progress with the exercises over the course of weeks.  The Alfredson protocol indicates that you continue with the exercises unless the pain becomes disabling.  If this occurs, consult your doctor.
It is well known that exercise in the older population may prevent several diseases [1–4]. Reduced physical activity impairs the quality of life in elderly people with Alzheimer's Disease [4], Parkinson's Disease [5], and Depressive Disorders [6]. Moreover, musculoskeletal, cardiopulmonary, and cerebrovascular decline are associated with poor physical fitness because of the cumulative effects of illness, multiple drug intake, fatigue, and bed rest [7, 8]. The effects of physical activity and exercise programs on fitness and health-related quality of life (HRQOL) in elderly adults have been widely studied by several authors [9–11]. De Vries et al. [11] conducted a meta-analysis focusing on elderly patients with mobility problems and/or multimorbidity. Eighteen articles describing a wide variety of actions were analyzed. Most used a multicomponent training program focusing on the combination of strength, balance, and endurance training. In 9 of the 18 studies included, interventions were supervised by a physical therapist. Intensity of the intervention was not reported and the duration of the intervention varied from 5 weeks to 18 months. This meta-analysis concluded that, considering quality of life, the exercise versus no-exercise studies found no significant effects. High-intensity exercise appears to be somewhat more effective in improving physical functioning than low-intensity exercise. These positive effects are of great value in the patient population but the most effective type of intervention remains unclear. Brovold et al. [7] recently examined the effects of high-intensity training versus home-based exercise programs using the Norwegian Ullevaal Model [12] on a group of over-65-year-olds after discharge from hospital. These authors based their study on the Swedish Friskis-Svettis model [13] which was designed by Johan Holmsater for patients with coronaropathy to promote their return to work and everyday activities and improve their prognoses. This model includes three intervals of high intensity and two intervals of moderate intensity, each one lasting for 5 to 10 minutes. Included in each is coordination. Exercises consist of simple aerobic dance movements and involve the use of both upper and lower extremities to challenge postural control [13]. Exercise intensity was adjusted using the Borg Rating of Perceived Exertion (RPE) Scale. Moderate intensity was set between 11 and 13, and high intensity was set between 15 and 17 on the Borg Scale.