There are many things a consumer can do to minimize unsatisfactory purchases when it comes to exercise videos. We have put together a buyer’s guide that will give you a lot of information on learning as much as you can about exercise videos and what they are about BEFORE you spend the money. When you are armed with this information you can be more assured that the videos you decide to purchase will actually be ones you use.
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Endurance performance (i.e. exercise duration > 1 min) is extensively studied in exercise physiology using cycling and/or running exercise (e.g. [1–4]). Despite being close to real competition events by involving the whole-body, the use of cycling and/or running exercise presents some important limitations to understand the role of the central nervous system (CNS) in the regulation of muscle fatigue and endurance performance. Indeed, as whole-body exercise involves greater systemic responses than isolated exercise [5], it is difficult to interpret some specific experimental manipulations aiming to understand CNS processes regulating muscle fatigue and endurance performance (e.g. manipulation of III-IV muscle afferents [6, 7]). Furthermore, due to the need to transfer the participant from the treadmill/bicycle to the ergometer, the true extent of muscle fatigue at exhaustion is underestimated [8], leading to inconclusive results on how peripheral (i.e. fatigue produced by changes at or distal to the neuromuscular junction [9]) and central (i.e. decrease in maximal voluntary activation level [9]) components of muscle fatigue might interact between each other’s (for review see [2, 9]). Therefore, due to the aforementioned limitations, the development of a new exercise model is required to better investigate the CNS processes regulating endurance performance.
Bottom line. Muscle confusion is a snappy term for non-linear periodization, which simply means rotating the workouts you do so that your muscles are constantly challenged and you get better, faster toning and weight-loss results. Research suggests this approach is more effective than doing the same exercise routine. P90X is a 90-day plan that combines strength moves, cardio, and yoga­—and if you follow it faithfully, you will probably see results. But it’s suitable only for those who are already very fit because the routines are intense and take about an hour a day. Note: You’ll also need dumbbells, exercise bands, and a pull-up bar, which do not come with the basic system. The diet is complicated, but it provides an appropriate number of calories for the work you’ll be doing.

In total, 1567 participants (790 women) met the inclusion criteria, fulfilled baseline testing and were randomized 1:1 into an exercise training group or to a control group. The exercise training group was further randomized 1:1 to either MCT or HIIT. Participants in the exercise groups were instructed to fill in exercise logs after each exercise session they performed. Data in the present study is based on the exercise logs from the first year of the intervention. Therefore, only participants in the exercise groups were included in the present study (n = 787). Dropouts in the exercise groups during the first year (n = 123) and those with no exercise logs (n = 46) were excluded. A total of 618 participants (291 women) were included in the analyses (Fig. 1). The study was approved by the Regional Committee for Medical Research Ethics (REK sør-øst B: 2015/945) and all participants gave their written informed consent before participation.
At the end of each pregnancy journey, you’re greeted by the mother of all marathons and we want to help you prepare for your birth experience in the best possible ways. Our Bloom classes as well as our 1:1 foundational crash courses were designed with empowerment in mind. We can’t promise you’ll find gentle workouts behind our studio door [you’ve got a marathon to train for] but we can promise that each workout will give you the safest, most effective, mind + body focused workout you’ll find in the prenatal world. Our workouts will make you sweat, challenging you both mentally and physically, while we integrate our signature techniques seamlessly into each exercise you move through. Think of it as childbirth education meets a safe sweat session gifting you tools to be used time and time again.
This is so that every muscle in your body can be targeted. Also, it provides variation so that you don't get bored and give up. If you don't like exercise, revert to what your ancestors did instead and walk everywhere, move constantly and do plenty of physical work at least once a day, such as chopping wood, gardening, carry loads or cleaning your house vigorously.
This move works best if you use a low bench. With the low bench at your right side, start with knees slightly bent and hips back. Shift weight to left foot then jump over the bench first with right foot, allowing the left foot to follow. Land lightly on right foot first then left foot. Reverse the move, starting with left foot, to return to starting position.
Even after long term IV therapy and other holistic type treatments to treat the Epstein Barr virus and co-infections in the blood, I still have CFS/ME. I have found effective ways to work with CFS/ME, yet this is not an overnight process and all of the lifestyle tools come into play even more so here. Visit our supplement page at anytime where we discuss options for immune support. Be sure you are getting enough zinc. This is sometimes overlooked. An additional 20-50 mg. can be helpful with CFS/ME. 
The mental benefits of barre are similar to yoga and Pilates, as it effectively increases mind-body awareness and mental clarity. Focus and concentration are required to perform the small precise movements utilized in barre. Allowing your mind to concentrate solely on your technique increases feelings of relaxation and decreases stress levels. Endorphins released during physical activity increase your general sense of well-being.
Squat between putting away dishes. During repetitive physical activities such as putting away dishes or loading the dishwasher, throw in squat, lunge, or other repetitive exercise between each repetition. This way, you'll naturally end up doing repetitions of exercises that need to be performed in repetition. putting each dish away or in the dishwasher.
Since this move is more difficult, you may sometimes use a kipping motion to propel your body higher into the air in order for your chest to touch the bar. HOW TO DO IT: Start by hanging from a secured bar with your hands slightly wider than shoulder-width apart. While squeezing the traps together and engaging the abs, pull yourself up to the bar and touch your chest to the bar. MUSCLES USED: Back, core, shoulders and chest.
But…. I am not sure why, but I am finding lunges virtually impossible!! I am practicing but even static lunges with just my body weight are so hard to do, I am also only feeling them in the front of my leg. I know to keep 90 degree angles, not to bend forward at the waist and not to extend my knee forward of my foot, so I am wondering if maybe my hamstrings are just pathetically weak or something?!?
Mice having access to activity wheels engaged in voluntary exercise and increased their propensity to run as adults.[150] Artificial selection of mice exhibited significant heritability in voluntary exercise levels,[151] with "high-runner" breeds having enhanced aerobic capacity,[152] hippocampal neurogenesis,[153] and skeletal muscle morphology.[154]

The bench press or dumbbell bench-press is performed while lying face up on a bench, by pushing a weight away from the chest. This is a compound exercise that also involves the triceps and the front deltoids, also recruits the upper and lower back muscles, and traps. The bench press is the king of all upper body exercises and is one of the most popular chest exercises in the world. It is the final exercise in 'The big 3'.
As a "formerly advanced" climber who is trying to get back into a healthy regimen after a year or two off, this book was excellent review of some obvious components of active practice that I'd forgotten in my rush to get back to my old level of climbing. Horst continues to be the best when it comes to training guides. Cannot recommend this book (or any of the others) enough.
Neuromuscular function tests were performed pre and post-exercise to quantify muscle fatigue. As previous studies documented the extent of isometric muscle fatigue induced by OLDE [8, 11, 17, 18], we chose to focus only on isokinetic muscle fatigue. Therefore, knee extensors (KE) MVCs were performed at 60 (MVC60), 100 (MVC100) and 140 (MVC140) deg/s pre (after the warm-up) and post-exercise (13 ± 4s after exhaustion). Subjects were asked to perform two maximal isokinetic knee extensions at each angular velocity (starting position corresponded to knee angle at 90 deg; range of motion was the same as the OLDE). The highest peak torque value of the two trials was considered, and a 20 s recovery was set between each set of KE MVCs. The order of contractions was randomized between sessions as follow (60-100-140 deg/s, 100-140-60 deg/s or 140-60-100 deg/s) and identical for testing pre and post-exercise of the same session. This randomization allows obtaining a time course of KE MVC torque recovery following the time to exhaustion test at each angular velocity was obtained at a different time point at each session: either shortly after exhaustion (13 ± 4 s after exhaustion), 20 s following exhaustion test (P20) and 40 s following exhaustion test (P40). An overview of timing can be found in Fig 1. Twenty seconds after completion of the last KE MVC, a maximal isometric MVC of the knee flexors was performed (isometric KF MVC). Visual feedback of the torque and strong verbal encouragement were provided for each MVC [please see reference 9 for more details].
In Colombia, citizens value and celebrate the outdoor environments of their country. In many instances, they utilize outdoor activities as social gatherings to enjoy nature and their communities. In Bogotá, Colombia, a 70-mile stretch of road known as the Ciclovía is shut down each Sunday for bicyclists, runners, rollerbladers, skateboarders and other exercisers to work out and enjoy their surroundings.[137]
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]
Perhaps one of the best benefits of barre is that it’s fun! It incorporates the use of upbeat music and engaging choreography. When working out is fun and enjoyable, your chances of staying with the program greatly increase. The barre method also offers quick results. Barre helps strengthen and tone your muscles without increasing bulk, and it improves your posture. It also increases cardiovascular endurance and metabolism, which helps to quickly burn calories.
Aerobic exercise is any physical activity that uses large muscle groups and causes the body to use more oxygen than it would while resting.[3] The goal of aerobic exercise is to increase cardiovascular endurance.[4] Examples of aerobic exercise include running, cycling, swimming, brisk walking, skipping rope, rowing, hiking, playing tennis, continuous training, and long slow distance training.[3]

If you thought two-day free shipping and all access to “The Marvelous Mrs. Maisel” were the highlights of your Amazon Prime account, you are going to be pleasantly surprised at this other fit feature. Not only can order your yoga pants and earbuds on Amazon Prime, you can actually use it to squeeze in a bit of cardio or stretching anywhere you happen to be.
In the third week of the program we step it up to a three-day training split: Train all “pushing” bodyparts (chest, shoulders, triceps) on Day 1; hit the “pulling” bodyparts (back, biceps) and abs on Day 2; and work your lower body (quads, glutes, hamstrings, calves) on Day 3. As in Week 2, you train each bodypart twice a week, so you’ll hit the gym six days this week.
The severity of angina and the effects of therapeutic interventions in patients with coronary artery disease have been assessed by determining changes in both exercise performance and the triple product (TP) of heart rate, systolic pressure, and ejection time occurring at angina. However, the validity of conclusions based on such changes is uncertain since the effects of different exercise protocols on these variables have not been determined. Twelve patients with angina were studied during upright bicycle exercise; repeated bouts of exercise using a standard protocol of 20-w increments every three minutes produced no consistent changes in TP at angina. When exercise began 20 to 60 w above the work load of the standard protocol that produced angina, exercise capacity was reduced (average 1'40'' vs. 4'40'', P < 0.001), and triple product at angina exceeded control anginal values (average 4,840 vs. 4,150, P < 0.001). In the control studies nitroglycerin (TNG) and carotid sinus nerve stimulation (CSNS) enabled patients to exercise to a higher level, although the triple product at angina was unaltered. However, at the higher work load TNG and CSNS exerted only minimal effects on exercise capacity, indicating that if the work load is excessive, a reduction in myocardial oxygen consumption produced by a therapeutic intervention may be comparatively minor so that a potentially salutary effect would be masked. We conclude that work loads causing angina in less than three minutes cannot reliably be used for studying the effects of therapy. However, if progressive work loads are chosen which cause angina in the control studies in three to six minutes, exercise capacity and triple product at angina provide important information about the efficacy and mechanism of action of a therapeutic intervention.

I enjoyed your functional training exercises, but I’m not sure about some of them as I was recently diagnosed with a small tear in my rotator cuff. I’m not planning on having surgery. My doctor said that I could work out, but other than saying not to do straight bar bench presses, he said if it hurts, don’t do it. I would love a little more direction than that. Do you have anything more to offer? Thank you.
In the fourth and final week of the program, you’ll train four days in a four-way split that hits each bodypart just once (except for calves and abs, which are each trained twice). Four-day splits are common among experienced lifters because they involve training fewer bodyparts (typically 2–3) per workout, which gives each muscle group ample attention and allows you to train with higher volume. As you’ll see, chest and triceps are paired up, as are back with biceps and quads with hamstrings, each a very common pairing among novice and advanced bodybuilders. Shoulders are trained more or less on their own, and you’ll alternate hitting calves and abs—which respond well to being trained multiple times per week—every other workout. No new exercises are introduced in Week 4 so that you can focus on intensity in your workouts instead of learning new movements.
If you don't have access to weights, then you can perform resistance exercises utilizing just the weight of your own body. These types of exercises include pull ups, push ups, crunches, squats, and lunges. If you'd like to find a well designed workout using body weight resistance, try the Slow Burn Fitness Revolution, which relies on slow movements to really increase intensity as you perform isotonic exercises.
Strength training means using resistance to work your muscles; that can be your bodyweight, dumbbells, kettlebells, sand bags, resistance bands, etc. The goal of this type of workout is to increase muscle mass. Getting stronger helps improve everyday performance (from sports to regular life), prevent injuries, and increase your metabolism. Need a primer on where to start? We’ve got you covered.
Within the MMB philosophical approach, the body’s nutritional and movement systems were integral. The key to maintaining a healthy digestive system and reducing fat percentage lay in regular exercise practice and a balanced diet. Checkley ridiculed fad diets, claiming they were unnecessary and irrelevant to a long-term solution.9 Checkley E. A natural method of physical training. New York (NY): William C. Bryant & Co.; 1890. [Google Scholar] Müller claimed that ‘When your digestive system has been invigorated through physical exercise you can safely eat almost every kind of food’.15 Müller JP. My system. London: Link House; 1904. [Google Scholar] Pilates recommended ‘to eat only enough food to restore the fuel consumed by the body’.46 Pilates J, Miller WJ. Return to life through Contrology. Nevada: Presentation Dynamics; 1945. [Google Scholar]
DC-based personal trainer Chris Perrin says to do hip bridges if you want to get your derriere round and toned. “Lie on the floor. With bent legs, place both feet flat on the floor. Both arms down, hands on each side of your hips,” he explains. “Raise your low back off the floor by pushing through the heels of the feet. Once your hips are at their highest point—without straining your back—pause and return your lower back to the floor.” And squeeze those glutes the entire time!

A 2015 review of clinical evidence which included a medical guideline for the treatment of depression with exercise noted that the available evidence on the effectiveness of exercise therapy for depression suffers from some limitations;[53] nonetheless, it stated that there is clear evidence of efficacy for reducing symptoms of depression.[53] The review also noted that patient characteristics, the type of depressive disorder, and the nature of the exercise program all affect the antidepressant properties of exercise therapy.[53] A meta-analysis from July 2016 concluded that physical exercise improves overall quality of life in individuals with depression relative to controls.[43]
Degenhardt B [Internet]. Once upon a time: the evolution of Pilates mat work. 2012 Nov 21 [cited 2015 Aug 30]. Available from:  He was later moved to the Isle of Man where he had duties training the injured inmates in their wards. It was there that Pilates started to connect springs to the hospital bed frames modifying them into effective and comfortable exercise devices which later evolved to become modern Pilates equipment.43 Hessel J [Internet]. Joseph H. Pilates biography. 2015 Jul 8 [cited 2015 Aug 30]. Available from: [Google Scholar]
Our results showed that both the MCT and HIIT group performed an equal amount of exercise sessions alone and together with others, suggesting that both individual and group-related exercise intervention strategies may be attractive to older adults. However, women exercised more frequently together with others than men. This result is in line with previous findings that women aged 60–67 years are less likely than men to prefer physical activity that can be done alone [23], and that more women than men express a need for social support to maintain an exercise program [31].

However, our goal is not necessarily to move more weight but to safely and efficiently target your muscles. By dramatically slowing the speed of the movements and ensuring that the weight smoothly changes directions, we virtually eliminate the possibility of injury. Excessive momentum is removed so only the muscles (and not the joints, tendons, or ligaments) are taxed.
The best 7-minute workouts on the planet are the ones you’ll actually do. This is what I know for sure after testing out more than 30 of them over the past few months. That and yes, they really do work. Adding in short blasts of high intensity interval (HIIT) training consisting of various strength, cardio, core, and flexibility exercises whenever I have a spare seven minutes in my day, have helped me get stronger, leaner, faster, and to feel better overall.
An essential move to any workout. Keep in mind that if doing a push-up on your toes is too tough, you can always start on your knees. It’s still a very effective strengthening move. HOW TO DO IT: Begin the push-up in a plank position with your hands on the ground under your shoulders and with your feet together, toes driving into the ground. Your body should be in one straight line with your core locked. Slowly lower yourself down to the ground so that your chest touches the ground, then push yourself back up to the starting position without collapsing your lower back. MUSCLES USED: Shoulders, triceps, biceps and core.
Ken Hutchins' analysis is not just book theory; it is based on real experience training many, many thousands of subjects over a span of decades. He trained everyone from amateur and professional level athletes and bodybuilders to little old ladies with osteoporosis and also a great many genetically normal/average folks. He assisted Arthur Jones and Ellington Darden at Nautilus Sports Medical Industries where he first refined the Superslow method during a 5 years long clinical trial, the Nautilus Osteoporosis Study at The University of Florida Medical School in Gainesville (the study is mentioned in chapter 8 of the 1990 edition of "The Nautilus Book" by Ellington Darden, a book I highly recommend for beginning HIT practitioners). Hutchins' writing is as dry and clinical as one would expect to find in any textbook about medicine or engineering. It is also filled with rich insight into the intellectual processes and long history of carefully controlled experiments at Nautilus (and later Hutchins' own facilities) that brought Ken Hutchins to his current level of knowledge. His understanding of anatomy, biology, physics, engineering, psychology, history and sociology are all put to good use in this book and should enthrall any reader that possesses solid critical-thinking skills. Understanding the arguments for a distinction of "Exercise vs. Recreation", "The First Definition of Exercise" and "Requirements for Functional Ability" are crucial for everyone that cares even the slightest about the subject of human health, fitness, longevity or quality of life. These are not trivial matters.
Squat between putting away dishes. During repetitive physical activities such as putting away dishes or loading the dishwasher, throw in squat, lunge, or other repetitive exercise between each repetition. This way, you'll naturally end up doing repetitions of exercises that need to be performed in repetition. putting each dish away or in the dishwasher.
Jump up ^ Gomez-Pinilla F, Hillman C (January 2013). "The influence of exercise on cognitive abilities". Compr. Physiol. 3 (1): 403–428. doi:10.1002/cphy.c110063. ISBN 9780470650714. PMC 3951958. PMID 23720292. Abundant research in the last decade has shown that exercise is one of the strongest promoters of neurogenesis in the brain of adult rodents (97, 102) and humans (1,61), and this has introduced the possibility that proliferating neurons could contribute to the cognitive enhancement observed with exercise. In addition to BDNF, the actions of IGF-1 and vascular endothelial growth factor (VEGF) (54) are considered essential for the angiogenic and neurogenic effects of exercise in the brain. Although the action of exercise on brain angiogenesis has been known for many years (10), it is not until recently that neurovascular adaptations in the hippocampus have been associated with cognitive function (29). Exercise enhances the proliferation of brain endothelial cells throughout the brain (113), hippocampal IGF gene expression (47), and serum levels of both IGF (178) and VEGF (63). IGF-1 and VEGF, apparently produced in the periphery, support exercise induced neurogenesis and angiogenesis, as corroborated by blocking the effects of exercise using antibodies against IGF-1 (47) or VEGF (63).

When you upgrade to the paid version, you can also track your weight and visualize your progress, which might help you stay motivated. It also shows a calendar of all of your workouts and lets you see them at a glance. I’ve had this app for three years now and they do a great job of updating it regularly to add new exercises and respond to user requests.
I created The Bloom Method with a desire to empower women before, during and after pregnancy. As a Pre & Postnatal Exercise Specialist, Core Rehabilitation Specialist and Pre and Postnatal Holistic Health Coach, I strive to provide women with empowering tools to help support your pregnancy, empower you during birth, prevent common pregnancy-related issues such as Diastasis Recti, Pelvic Floor Incontinence, and Prolapse. My clients that have experienced my methods experience a quicker healing phase post-baby.
Personal trainer James Shapiro has a tough yet effective way to get your triceps toned and defined with “body weight skull crushers.” He says to “start in a pushup position either on the floor or on an incline. Have your hands inside shoulder width and fingers point straight ahead of you. Focusing on only bending from your elbows—which should remain tucked into your sides and not flared out—go down feeling the stretch and focus on your triceps.”
In her hilarious, naked, and explicitly honest anecdote, she described her aversion to most fitness regimens ("I can't run because I piss myself . . . and fart at the same time"), her DVD workout — "Charlotte's 3-Minute Belly Blitz" — and her complete surprise at the intensity of the routine ("THAT'S the f*cking WARMUP?"). To be honest, most of us have been there, so this is pretty damn relatable.
Resting hormone concentrations have been a topic of many studies and discussions. It has been suggested that conflicting results were, at least partly, because of a lack of standardisation in both the way overtraining was measured and in the hormone measurement protocols used. Results from the present study show that variability in resting hormone concentrations is also present within groups of NFO and OTS patients. The arguments for contradictory findings are not valid within this study where blood was drawn at the same time of day always after an overnight fast. However, the diurnal variation in cortisol cannot be ruled out with this protocol because tests are separated by 4 h. However, each test was done with the same protocol and timing so that the data were collected in a standardised manner. One possible reason why the cortisol levels do not show the same pattern as ACTH might be because of this diurnal variation. Therefore, it must be concluded that resting hormone concentrations are not sensitive enough, at least not to diagnose unexplained underperformance in athletes. It has been suggested that hormonal reactions to stress tests are more sensitive.1 11
We were looking for something a bit more 'sophisticated' than the brightly colored tiles for our living room area where the kids play and we entertain. They are good quality, and because they are reversible, we were able to design more of a 'rug' look, rather thana being stuck with the regular checkerboard pattern with std tiles. These are a great value!
Wellcome Library [Internet]. Rodway H. Training for childbirth - and after (1940). 2015 Sep 24 [cited 2015 Oct 3]. Available from:  Morris,33 Morris M. Basic physical training. London: Heinemann; 1937. [Google Scholar] and Vaughan,47 Youtube [Internet]. Vaughan, K. Childbirth as an athletic feat (1939). 2009 Feb 23 [cited 2015 Aug 30]. Available from: [Google Scholar] Pilates emphasized breathing techniques, training in sunshine and fresh air. Pilates also advocated the use of minimal and light-fitting clothing, recommended cold exposure and the importance of bathing and treating the skin.45,46 Pilates J. Your health. Nevada: Presentation Dynamics; 1934.
The relation between the increase in oxygen uptake (VO2) and increase in work rate (WR) between unloaded pedaling and maximal work during incremental cycle ergometer exercise was studied in normal men, men with uncomplicated systemic hypertension and ambulatory men with various cardiovascular diseases. The postulation was that impaired peripheral oxygen delivery would reduce the ratio of the ... [Show full abstract]Read more
If you want to form a gym habit, it can be difficult to know what to do or how to workout. Once you become immersed in exercise, it can feel like there’s not enough time to try all the different things! Plain and simple, this is just a knowledge gap. Learning how to workout is like learning anything else, it requires time, research and study. Hiring a personal trainer is the fastest route around this, but it also helps to be a “student of the game” by continuing to educate yourself.
Target your glutes and core muscles with bridges. Lie on your back with your knees bent, feet flat on the floor, and your arms by your sides. Inhale, then exhale as you engage your core muscles and slowly raise your hips and lower back off of the floor. Lift yourself until your shoulders and knees form a straight line, and keep your arms flat on the floor to keep your balance.[19]
The other important part? It has to be tough — 85% or more exertion for 30-seconds to one minute, followed by a 10-second rest. Or, as Heather Tyler, an NSCA-certified personal trainer and owner of Simply Fit LA wrote to me in an email, “you know that feeling like you’ve run up five flights of stairs, your heart’s pounding in your ears, you’re dripping sweat and you sound like a donkey wheezing?”

Bonds H. The politics of the male body in global sport - the Danish involvement. Oxon: Routledge; 2010.  Müller, like Checkley, took a firm stand against exercise machinery, stating they were unnecessary and harmful with advocates described as having ‘biceps or triceps … as their chief credentials.’15 Müller JP. My system. London: Link House; 1904. [Google Scholar] After ‘My System’ was published, Müller traveled throughout Europe with lectures and exercise demonstrations and settled in London in 1912, to establish the ‘Müller Institute’ in which he offered group and individual classes to the public.15,16 Müller JP. My system. London: Link House; 1904.
LSR, SBS, HV, NPA, JEI, UW and DS contributed to the conception and design of the study. LSR, SBS, HV and DS were responsible for the collection of the Generation 100 data in cooperation with colleagues at the Cardiac Exercise Research Group at the Norwegian University of Science and Technology, Norway. LSR, SBS and XT provided the data for analysis. LSR undertook the data analysis and drafted the manuscript. All authors provided critical insight and revisions to the manuscript. All authors read and approved the final version of the manuscript submitted for publication.

In healthy adults, aerobic exercise has been shown to induce transient effects on cognition after a single exercise session and persistent effects on cognition following regular exercise over the course of several months.[33][42][45] People who regularly perform aerobic exercise (e.g., running, jogging, brisk walking, swimming, and cycling) have greater scores on neuropsychological function and performance tests that measure certain cognitive functions, such as attentional control, inhibitory control, cognitive flexibility, working memory updating and capacity, declarative memory, spatial memory, and information processing speed.[33][37][39][41][42][45] The transient effects of exercise on cognition include improvements in most executive functions (e.g., attention, working memory, cognitive flexibility, inhibitory control, problem solving, and decision making) and information processing speed for a period of up to 2 hours after exercising.[45]

Rotator cuff impingement syndrome (RCIS) is a multifactored disease that can lead to functional limitations and an inability to participate in work, leisure, and sporting activities. This syndrome can be caused by many factors, such as weakness of the rotator cuff and periscapular muscles, decreased pectoral and rotator cuff muscle flexibility, abnormal motion patterns, extrinsic factors (eg, vibration exposure, use of hand tools, work-station height), and trauma. Kuhn provided a valuable synopsis of randomized controlled clinical trials in which the benefit of exercise for individuals with RCIS was examined. Substantial evidence1 exists to support the use of exercise for the management of this patient population. In addition, manual therapy has been shown1 to augment the effectiveness of exercise. However, we believe it is premature to label the proposed rehabilitation protocol as a criterion standard because of the lack of specific exercise descriptions, variability in the exercise programs, and inability to separate the effects of specific exercises on the measured outcomes that Kuhn noted. Furthermore, because RCIS is multifactored, use of the same exercise protocol to treat everyone with RCIS might not be the best standard of care.
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.