Category Archives for Cardio

How Aerobics for Seniors Helps to Be Healthy Strong

How Aerobics for Seniors Helps to Be Healthy Strong

Most noteworthy, people 60 and over start to show signs of physiological aging. For example, their gait isn’t as long or as quick as it was when they were younger. Or they get tired sooner. In fact, physiological aging is characterized by a decline in the maximal aerobic capacity of their lungs, and, a decline in their skeletal muscle strength. Consequently, aerobics for seniors helps ward off these declines and helps seniors become and stay healthy.

Aerobics for Seniors

Maximal Aerobic Capacity

First of all, maximal aerobic capacity is defined as the maximum rate of oxygen consumption during incrementally increasing exercise intensity. In fact, maximal aerobic capacity is an indicator or cardiorespiratory fitness.  Furthermore, the lung’s maximal aerobic capacity determines the intensity and duration of aerobics seniors can tolerate and do.

In addition, the greater the lung’s maximal aerobic capacity, the more intense aerobics seniors can do and do them for longer periods of time. Most of all, outward signs of reduced maximal aerobic capacity appear during aerobics for seniors, when seniors engage in aerobic physical activities. During these aerobic activities, seniors may start running out of breath earlier than when they were younger, or, do the aerobics with lower intensity. Finally, lower maximal aerobic capacity limits senior to functionally perform some physical activities.

Why Maximal Aerobic Capacity is Important for Seniors

Sedentary lifestyles cause the maximal aerobic capacity to decrease nearly 44 percent in males and 34 percent in females from the age of 20 to the age of 60. Seniors whose maximal aerobic capacity has dropped significantly become very challenged to autonomously complete activities of daily living. Consequently, it is important for seniors to work at increasing their maximal aerobic capacity.

And one of the most important ways to do that is with aerobics. Aerobics for seniors have been known to increase maximal aerobic capacity by nearly 13 percent in an eight to ten weeks senior aerobic training programs. Senior aerobic training programs of twelve to eighteen weeks have resulted in nearly 14 percent improvement, while 24 to 52 weeks of senior aerobic training has resulted in a nearly 17 percent improvement. Participating in aerobic training program or even doing aerobics independently potentially delays loss of independence. Finally, higher intensity aerobics leads to even greater improvements in maximal aerobic capacity. In fact, an increase of 25 percent is like getting back an estimated 12 years of vigor.

Cardio for Seniors

Cardio or aerobic workouts force the heart and lungs to pump more blood and oxygen to the muscles, brain, and the body. Consequently, cardio for seniors are hugely helpful for their health. In fact, regular cardio workouts cause the entire pulmonary system to increase the lung’s maximum oxygen capacity.

Aerobics for Seniors - Guidelines

Especially relevant, the latest senior aerobic guidelines recommend seniors get 150 minutes of moderate-intensity aerobic workout each week. However, if chronic conditions limit seniors to less than 150 minutes, seniors should be as physically active as possible.

In addition, when doing aerobics seniors should raise their heart rate for stretches of 10 minutes.  And in that time, seniors should do either moderately intense or vigorously intense aerobics.

Furthermore, the minimum time for moderately intense cardio is 30 minutes on each of the five days of the week. Moreover, seniors will get even more benefits if they exercise for 60 minutes on each of the five days.

On the other hand, seniors don’t have to do it all in one stretch. Indeed, seniors can break up the 30 minutes into shorter aerobic workouts of at least 10 minutes each. Most of all, only the total time spent on aerobic workouts should be at least 150 minutes per week.

Finally, for less fit adults,  recommendations also encourage the accumulation of relatively hard physical activity in intermittent periods of exercise and physical activity lasting 10 minutes or longer throughout the course of the day.

Aerobics for Seniors – Unstructured Activities

Lastly the 2007 ACSM/AHA guidelines seniors include unstructured approaches to increasing physical movement. These unstructured activities include:

  • 1
    Going for a walk after dinner
  • 2
    Frequently taking the dog for a walk
  • 3
    Walking briskly when doing errands
  • 4
    Parking the car as far away from the entrance as possible
  • 5
    Taking walking breaks instead of coffee breaks
  • 6
    Doing more energetic housework (for example, vacuuming)
  • 7
    Using stairs in place of elevators
  • 8
    Doing more mall walking

Subjective Measures of Intensity

As a rule, seniors exercise at a moderate intensity when their breathing and heart rates are noticeably higher. However, seniors can still carry on a full conversation, except that their breathing may be heavier and or they may be sweating. In addition, on a 10-point scale, with zero being a state of rest, moderate intensity workouts would be a 5 or 6 on the 10-point scale.

As another way to get a grasp of moderate intensity, walking a distance of two miles in 30 to 40 minutes (or a walking speed of 3 to 4 miles per hour) would meet the definition of moderate physical activity.

Aerobics for Seniors

Seniors need just as much exercise as those under age 65. Furthermore, seniors can choose from a wide variety of available workouts. These aerobics seniors can choose, include, swimming, walking, jogging, water aerobics, ballroom dancing, rowing, bicycling, to name just a few. And if you prefer going to the gym or sports clubs, you have your choice of treadmills, several kinds of elliptical machines, stair climbers, several kinds of cycles, and even rowing machines. Treadmills are great for walking because they provide a cushion for your feet. Elliptical machines, on the other hand, keep your feet grounded to the pedals. As a result, they are good for you back, hips, and knees. Finally, you can use spin cycles, upright bikes, or even recumbent bikes that provide back support.

Not into Aerobics - Seniors Can Still Get Brain Benefits

The Western University in Ontario, Canada reported in a 2019 study  that even with short burst of reasonably low intense aerobics, seniors can improve their brain health. Researchers found that even only 10 minutes of aerobic activity, like walking, on a treadmill improves cognitive functions (such as memory and attention) of seniors. Moreover, these benefits are achievable even by seniors who hadn’t exercised for a long time. The study of 17 seniors, with an average age of 73, found that boost in executive functions, such as planning and organizing, was achievable with aerobic exercise intensities ranging from moderate, heavy, and vigorous levels.

And these benefits are not limited to seniors with high levels of cardiorespiratory fitness. In fact, these benefits are achieved by seniors across a spectrum of exercise intensities as well as across a spectrum of fitness levels. Meanwhile, seniors realize the cognitive benefits almost immediately.

What’s the Best Time for an Evening Workout

What's the Best Time for an Evening Workout

People have their own favorite time to exercise. The morning people prefer to work out in the morning. While others prefer to exercise around the lunch hours. And some prefer to exercise sometimes in the afternoon. Finally, some prefer the evening workout.

Evening Workout

Evening Workouts

But are there any downsides to working out in the evening hours.  Some downsides include the evening workout interfering with social activities. While other downsides include the possibility that an evening workout may interfere with your ability to sleep.

Working Out in the Evening

A recommendation, that’s been around for a while, is to avoid strenuous workouts before bed. Seems like there are several reasons for this recommendation, including that the workout before bed:

  • Increases the heart rate
  • Causes your body to release stimulating epinephrine, also known as, adrenaline
  • Causes core body temperature to rise during the workout and it stays high for four to five hours. Moreover, the high temperature may interfere with your need to fall asleep. In fact, the normal pattern is for your body temperature to go down as you approach bed time.List Element

However, people are not all affected the same way. For example, some couldn’t care less if they just came out of a High Intensity Interval Training (HIIT) workout. They may fall asleep as soon as they lay on the mattress.

Indeed, most people are able to fall asleep even after they exercise before bed. Especially relevant, a 2011 study reported that those who did 35 minutes of exercise before bed slept just as well as on those nights when they didn’t exercise.

2013 Survey of Evening Workout Effects on Sleep

In the meantime, the National Sleep Foundation in 2013 conducted a poll of about 1,000 people. And, the poll found that 83 percent of the people who exercised (at any time of the day, including evenings) slept better than those who didn’t exercise at all. In fact, only 3 percent of the late day exercisers said they slept worse on days when they exercised compared to days when they didn’t.

2013 Japanese Research on Effects of Evening Workout

A 2013 Hokusho University in Japan study reported that vigorous exercise within one hour of bedtime resulted in participants taking an average 14 minutes longer to fall asleep. Especially relevant, the participants in the study were 12 healthy males. The study pointed out that vigorous exercise created a large physiologic excitement, likely due to release of adrenaline, delaying the start of sleep.

2019 Meta-Analysis of Evening Workout Effects on Sleep

Next, the journal Sports Medicine reported, in February 2019, about a meta-analysis by researchers at ETH Zurich. In fact, the meta-analysis discovered that compared to people who didn’t exercise at all, people who exercised within four hours of going to bed showed no difference in the:

  • Time it took to fall asleep
  • Time spent awake during the night after falling asleep
  • Quality of their sleep

On the other hand, researchers found that exercise could actually improve sleep by increasing the percentage of time spent in slow-wave sleep, or deep sleep. In fact, study participants, who did some type of workout within four hours of bed, spent an average of 21.2 percent of the night in deep sleep. While those who didn’t exercise only spent an average of 19.9 percent of the night in deep sleep.

Especially relevant, the only exception to the above results were those doing HIIT. Seems like, vigorous exercise like HIIT, one hour before going to sleep can mess up sleep. And, this is because your heart rate goes very high during HIIT. Moreover, one hour just isn’t enough time for your heart rate to come back near its resting rate. Consequently, your body isn’t as relaxed and ready to fall and stay asleep.

Therefore, it’s necessary to limit the evening workouts to low or moderate intensity. In fact, researchers think that moderate intensity workouts, causes the parasympathetic nervous system to kick in. And, when that happens, your heart rate slows down which in turn, helps you relax.

Because people are different, each person has to try out the intensity of the workout before bed that will allow them to fall asleep after the workout.

2019 Observational Study of Evening Workout Effects on Sleep

A 2019 Australian study reported that 30 minutes of HIIT bike training had no effect on sleep. In addition, the HIIT session didn’t result in hunger pangs.

Above all, the study was based on only 11 middle-age men. Moreover, the study looked at how the men slept when they exercised in the morning (6 to 7 AM), afternoon (2 to 4 PM) and evening (7 to 9 PM).

Meanwhile, the study found sleep time was shortest when the men exercised in the morning. Next, the sleep time was the longest when the men exercised in the afternoon. Finally, the sleep time was somewhere in the middle when the men exercised in the evening.

In addition, there was only a one or two minute difference in the time to fall asleep between the morning, afternoon, and evening exercise sessions.

Next, researchers found reduced levels of the hunger hormone ghrelin when the men exercised in the evening.

Finally, the study reported that the men had more energy when they exercised in the afternoon or evening than when they exercised in the morning.

Weight Training as an Evening Workout

Research on hormones cortisol and testosterone indicates that weight training in the evening is best for building muscles. In fact, cortisol helps regulate blood sugar my breaking down muscle tissue (called catabolism) as needed. While testosterone, with the help of proteins, build muscles (called anabolism).

Cortisol levels are highest when you first get up in the morning and lowest in the evening. Similarly, testosterone levels are also highest in the morning and lowest in the evening. However, the ratio of testosterone to cortisol is highest in the evening. While both cortisol and testosterone levels dropped during the day, cortisol levels dropped more than testosterone levels. As a result, the evening provides a more anabolic, muscle-building environment for weight training. In fact, according to Applied Physiology, Nutrition, and Metabolism, anaerobic capacity is 7 percent higher in the evening when compared to morning. For this reason, early evening gym sessions are preferred by weight trainers.

Furthermore, temperature peaks in late afternoon. And research shows that muscle strength also peaks in the afternoon almost in sync with temperature. Moreover a 2005 study found that optimum performance is towards the end of the afternoon and early evening when the body temperature is also at its peak. In fact, a study found that those who weight trained after 6 PM in the evening gained 3 percent muscles while losing 4 percent body fat.

Finally, it is recommended that a carbs and protein post-workout meal be eaten within 45 minutes after the end of the weight training workout. Indeed a delay of carb consumption by as much as two hours may result in 50 percent lower rates of glycogen synthesis. On the other hand, you could eat the meal before the weight training session.

Conclusion

In conclusion, vigorous exercise such as HIIT workouts pumps out adrenaline, just before bedtime, which may delay start of sleep. However, light or moderate intensity workout before bed likely will have minimal, if any, impact on your sleep. However, because of individual differences, the best way to determine if a workout before sleep works for you, is to experiment.

Meanwhile, if you are under stress before bedtime, a vigorous workout before bed is the best thing to release all that stress, clear the mind and help you sleep.