One study found that sedentary middle-aged women reduced their epigenetic age by two years after just eight weeks of combined aerobic and strength training. Another study showed that older men with higher oxygen uptake levels, a key measure of cardiovascular fitness, had significantly slower epigenetic aging. Participation in PA and exercise can contribute to maintaining quality of life, health, and physical function and reducing falls [19–21] among older people in general and older people with morbidities in particular. To reduce falls, balance training is also recommended to be included in physical exercise programs for older adults [12]. Exercise has also been shown to reduce falls with 21%, with a greater effect of exercise programs including challenging balance activities for more than 3 hours/week [23]. These consistent findings suggest the potential for physical activity to increase baseline health and functioning and minimise decline rates in older age.
The Importance of Physical Activity Exercise among Older People
Even a small amount of physical activity (such as getting involved in moderate physical activity once per week) may reduce likelihood of experiencing severe deterioration of health and functioning in older age. Once the model was selected, we used a three-step approach to estimate the association of the three physical activity variables (i.e. aggregated physical activity, frequency of vigorous exercise, and frequency of less vigorous exercise) with each latent class. This procedure accounts for misclassification in the second step, and the error assignments based on the highest posterior probabilities are reduced. In these models, participants with missing data in any of the covariates were excluded from the analyses. Research has suggested the positive impact of physical activity on health and wellbeing in older age, yet few studies have investigated the associations between physical activity and heterogeneous trajectories of healthy ageing.
Serine/threonine protein kinase mTOR was identified in mammalian cells as a target of the antiproliferative molecule rapamycin [134]. It participates in the formation of two protein complexes called mTORC1 and mTORC2, known be sensitive and insensitive to rapamycin, respectively [135]. Phosphorylation and activation of AMPK leads to inhibition of mTORC1 through v-ATP-ase-AXIN/LKB1, which leads to increased lifespan in C. Thus cellular energy balance effectively controls cellular responses via an integrated signaling network mediated by AMPK [118], which phosphorylates its downstream targets and is able to attenuate the hallmarks of aging [119, 120] (Figure 2). In summary, exercise attenuates all hallmarks of aging through different molecular pathways and effectors that seem independent and disconnected.
Niagara Lutheran Health Foundation
Recent studies highlight that HIIT can significantly enhance cardiorespiratory fitness and overall health and reduce body fat levels in older individuals (Atakan et al., 2021; Engel et al., 2018). This training model, characterized by short bursts of intense physical activity followed by brief rest periods or lower-intensity exercise, has been extensively studied, revealing significant positive effects on various aspects of aging, including cardiovascular health (Weston et al., 2014). HIIT has been shown to improve cardiac output, vascular endothelial function, and aerobic and anaerobic capacity, making it a highly effective exercise modality for enhancing overall cardiovascular health in older adults (Milanović et al., 2015). Studies have demonstrated that HIIT leads to improvements in cardiorespiratory fitness, exercise tolerance, blood pressure, lipid profiles, and vascular reactivity in older adults, ultimately reducing the risk of dependency, cognitive impairment, and premature mortality (Sian et al., 2022). Overall, HIIT emerges as a time-efficient and effective intervention for promoting cardiovascular health in seniors, offering a promising approach to enhancing their physiological resilience and overall wellbeing. Research has shown that aerobic exercise training positively impacts various aspects of cardiovascular health, such as lipid profiles, apolipoproteins, and lipoprotein sub-fractions, which are key predictors of cardiovascular disease risk (Wood et al., 2023).
Integrative hallmarks
Moreover, a hybrid approach combining HIIT and CAT elements may offer the most comprehensive benefits. For example, an exercise regimen could include moderate-intensity aerobic activities for endurance, complemented by occasional high-intensity intervals to boost cardiovascular and metabolic health. This balanced approach can maximize the advantages of both training modalities while minimizing risks. In addition to its physiological benefits, HIIT is also known for its psychological advantages. The varied nature of HIIT workouts can make them more engaging and enjoyable compared to monotonous steady-state cardio exercises.
Figures
In this unique population, the decline in lung function and sarcopenia can be counteracted by exercise programs which increase their physical capacity and health span [24]. For those with more strength and mobility, resistance training is an excellent method to decrease the symptoms of aging, as it is the most effective way to increase muscle mass. Resistance training is a form of weight-bearing activity that forces your body’s muscles and bones to work against a weight or force, making your muscles, tendons, ligaments, and bones stronger. Resistance training exercises involve lifting free weights, like dumbbells or sandbags, or using resistance bands that apply tension to your bones and muscles. Continuous resistance training or weight-bearing activity builds muscle strength and promotes the bones to produce more bone tissue. Many resistance training exercises, such as squats (see above) and push-ups, can also be done without equipment and using the body’s natural weight as resistance, which makes resistance training much more accessible.
Safe and Effective Back Pain Exercises for Seniors
“These findings suggest that maintaining physical fitness delays epigenetic aging in multiple organs and supports the notion that exercise as a geroprotector confers benefits to various organs.” Yoga works on the body and mind, building your strength and stability and naturally relieving depression as you get older. In addition, yoga also helps combat signs of skin aging, like wrinkles and fine lines, and tightens your skin around all the muscle groups used during the exercise, including the face and neck. An estimated 110,000 deaths per year could be prevented if U.S. adults ages 40 and older increased their moderate-to-vigorous physical activity. If you are not physically active, work your way up to 150 minutes a week of moderate-intensity physical activity.
- Exercise enhances telomere length and reduces the expression of apoptosis regulators (such as cell cycle checkpoint kinase 2, p16INK4a, and P53) shedding light on the beneficial impact of exercise on senescence [68].
- Furthermore, the direct inhibition of mTORC1 by AMPK can have effects similar to nutrient depletion [120] (Figure 2).
- A meta-analysis by Ramos et al. (2015) found that HIIT elicited greater enhancements in VO2 max, a key indicator of cardiovascular health, than CAT (Ramos et al., 2015).
- Public health policies on physical activity promotion can play a key role in reducing burdens of disability as well as healthcare costs in ageing populations.
- Nevertheless, a substantial gap exists between total and healthy life expectancy (Seals et al., 2016), meaning people live several years with functional limitations.
- An estimated 110,000 deaths per year could be prevented if U.S. adults ages 40 and older increased their moderate-to-vigorous physical activity.
Resistance Training Exercises
In parallel, the increase in NAD+/NADH causes activation of silent information regulator 1 (SIRT1) deacetylase activating LKB1. The target of rapamycin complex 1 (TORC1) – a central kinase involved in protein translation- is a negative regulator of autophagy and so may be an effector of exercise. TORC-1 is downregulated by exercise through modulation of IGF-1, Akt/mTOR, and Akt/FoxO3a signaling.
Trajectories of healthy ageing
For older adults, doing a variety of physical activities improves mad muscles physical function and decreases the risk of falls or injury from a fall. Older adults need to include aerobic, muscle strengthening, and balance activities in their physical activity routines. This multicomponent physical activity can be done at home or in a community setting as part of a structured program. Getting at least 150 minutes a week of moderate physical activity can put you at a lower risk for these diseases. One of the primary mechanisms by which HIIT improves fitness is its impact on mitochondrial function and oxidative capacity. Bartlett et al. (2011) found that HIIT promotes mitochondrial biogenesis, enhancing the muscle cells’ ability to produce energy.
Antagonistic hallmarks
Metabolic syndrome is some combination of too much fat around the waist, high blood pressure, low high-density lipoproteins (HDL) cholesterol, high triglycerides, or high blood sugar. With a regular schedule of moderate-intensity physical activity, people start to benefit from even less than 150 minutes a week of moderate-intensity physical activity. Group activities, whether in the form of CAT or group HIIT classes, can provide social interaction and support, vital for mental health and adherence to exercise programs (Batrakoulis and Fatouros, 2022). Engaging in physical activities with peers can enhance motivation, enjoyment, and long-term commitment to an active lifestyle (Firth et al., 2016).
Benefits of Physical Activity
This can significantly contribute to maintaining independence and quality of life as individuals age (Erickson et al., 2019; Faienza et al., 2020). HIIT has shown promise in managing chronic conditions in seniors by improving functional movement, cardiorespiratory fitness, and overall health awareness (Juan and Xianyi, 2023; Keating et al., 2020; Stern et al., 2023). However, further research is needed to explore the specific effects of HIIT on seniors with multiple complex chronic conditions, emphasizing the importance of individualized functional programs and patient safety monitoring (Brockway et al., 2023). Recent research has further elucidated the complex interplay between these dimensions of aging and their implications for older adults’ overall wellbeing. For instance, a study by Steptoe and colleagues (Steptoe et al., 2015) examined the association between different aspects of active aging, such as physical activity, social engagement, cognitive stimulation, and subjective wellbeing in a large sample of older adults (Steptoe and Fancourt, 2020).
Moreover, CAT has been linked to increased cerebral blood flow, decreased central arterial stiffness, and improved cognitive function, including memory and executive function, in older adults with or without mild cognitive impairment (Zhang, 2022). These findings collectively highlight the significant advantages of CAT in promoting healthy aging by addressing both physical and cognitive aspects. HIIT has shown promising results in improving various aspects of health in older adults, including muscle strength, cognitive abilities, and fall risk factors.