Athena Vale
Resistance training is an effective way to prevent muscle loss, especially when paired with a balanced diet. Research shows that resistance training prevents muscle loss in obese elderly individuals, and it is also effective in maintaining muscle mass while losing weight. Additionally, athletes who take breaks from their regular exercise routines can retain their muscle strength for about three weeks before starting to lose it.
| Characteristics | Values |
|---|---|
| Lifting Weights | Prevents muscle loss |
| Resistance Training | Preserves muscle mass |
| Calorie Restriction | Leads to muscle loss |
| Endurance Exercise | Increases energy expenditure and induces weight loss |
| Recovery Time | Important for preventing fatigue and maintaining muscle mass |
| Protein | Promotes protein synthesis and muscle mass formation |
| Supplements | May improve muscle mass and strength |
| Age | Older people experience a bigger drop in muscle strength during breaks from exercise |
| Athletes | Can go three to four weeks without exercise before losing muscle strength |
| Non-athletes | More likely to lose muscle strength during periods of inactivity |
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What You'll Learn
Resistance training prevents muscle loss
Resistance training is an effective way to prevent muscle loss, especially when paired with the right diet and adequate recovery time. This is true for both athletes and non-athletes, and for older individuals as well.
A 2018 systematic review and meta-analysis found that obese older adults who did resistance training two to three times a week for up to six months were able to prevent muscle loss while reducing fat mass and body weight. The training focused on the main muscle groups, including upper and lower limbs. Similarly, a 2010 study found that both athletes and non-athletes can reach their peak fitness levels more quickly after a break than when they first began training, indicating that resistance training can help prevent muscle loss even after a period of inactivity.
Resistance training is particularly effective at preventing muscle loss induced by caloric restriction. A systematic review and meta-analysis of randomized clinical trials (RCTs) found that resistance training (RT) prevented 93.5% of the lean body mass (LBM) loss induced by caloric restriction (CR). The review included individuals who were sedentary and obese, and the resistance training was prescribed for the major muscle groups, including upper and lower limbs, three times a week. This finding was further supported by a previous meta-analysis, which showed that different types of exercise, including endurance, resistance, and combined training, prevented 50% of LBM loss in sarcopenic obese individuals over 50 years old.
In addition to resistance training, dietary and lifestyle strategies can also help prevent muscle loss. Eating a high-protein diet, for example, can promote protein synthesis and muscle mass growth. Experts recommend a daily protein intake of 1.2 to 1.6 grams per kilogram of body weight. Complex carbs and healthy fats can also help individuals feel full and energized, preventing fatigue and muscle loss. Allowing for adequate recovery time between resistance training sessions is crucial for maintaining muscle mass and preventing fatigue. Research suggests that it takes up to 48 hours for muscles to fully recover after resistance training.
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Calorie restriction and resistance training
Resistance training has been shown to increase LBM (Lean Body Mass), promote strength, and attenuate sarcopenia in elderly individuals. This is true regardless of protein intake. However, it is unclear whether resistance training is an effective strategy to prevent muscle loss during calorie restriction when protein intake is restricted.
Calorie restriction can induce anabolic resistance to resistance exercise. This is due to the disruption of the GH:IGF-1 axis, which regulates growth hormone and insulin-like growth factor. This dysregulation is termed growth hormone resistance. Further research is needed to understand how resistance exercise impacts bone markers in a calorie-restricted state.
Some studies have shown that bone formation can be elevated through resistance exercise, even under calorie restriction. However, the results are not always consistent, and further research is needed to confirm these findings. Post-exercise protein supplementation may also help to attenuate the suppression of IGF-1 following resistance exercise while in a calorie-restricted state.
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Endurance, resistance, and combined training
Combined resistance and endurance training can also be beneficial for patients with specific medical conditions. For instance, a study on patients with Amyotrophic Lateral Sclerosis (ALS) found that a moderate exercise program based on aerobic training and isometric sub-maximal contractions of muscles was safe and helped prevent deconditioning and atrophy. Additionally, for patients with coronary artery disease, adding lower-extremity low-intensity resistance muscle training to early aerobic endurance training has shown clinical benefits.
When considering combined training, it is important to note that the frequency and intensity of the exercises can impact the results. For instance, in the case of middle-aged men, low-frequency combined training of the leg extensors resulted in lower maximal leg strength development compared to resistance training alone, but it did not negatively affect leg muscle power and cardiovascular fitness.
Overall, combined resistance and endurance training can be an effective strategy to prevent muscle loss and improve physical performance, especially when tailored to individual needs and specific medical considerations.
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Dietary, fitness, and lifestyle strategies
Resistance training is a key dietary, fitness, and lifestyle strategy to prevent muscle loss. This includes strength training with weights, as well as bodyweight exercises. Research has shown that resistance training prevents muscle loss while reducing fat mass and body weight, particularly when combined with a calorie-restricted diet. The frequency of resistance training can vary from two to three times a week, and the duration can be up to 6 months or even longer.
In addition to resistance training, aerobic or cardiovascular exercises can also be beneficial. However, it is important to structure your workouts to limit doing too much cardio before resistance training, as moderate to high-intensity aerobic exercise has been shown to negatively impact muscle strength. Low-intensity aerobic exercise, on the other hand, can be a good way to increase energy expenditure and induce weight loss.
Another important strategy is to consume a sufficient amount of protein, which helps promote protein synthesis and muscle mass formation. Experts recommend spreading your protein intake throughout the day and aiming for 1.2 to 1.6 grams of protein per kilogram of body weight. Complex carbohydrates and healthy fats are also important to include in your diet, as they can help you feel full and provide energy to prevent fatigue and muscle loss. Staying hydrated is also crucial, and it is recommended to replace sugary drinks with water, unsweetened tea, coconut water, or fresh vegetable juice.
Taking certain supplements may also help improve muscle mass, recovery, and strength. For example, caffeine and nitrate supplements taken before exercising may boost muscular strength and help preserve muscle mass. However, it is important to consult with a healthcare professional before taking any supplements, as they may interact with certain medications or conditions.
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Taking supplements to improve muscle mass
Taking supplements is a great way to improve muscle mass and enhance your exercise performance. Here are some of the most effective supplements for muscle growth:
Creatine
Creatine is a naturally occurring compound in the body and is also found in foods like red meat and fish. It is one of the most widely studied and used supplements for muscle growth. Creatine affects muscle cells and exercise performance, promoting muscle gain and improving recovery. It helps increase muscle strength and power, leading to larger increases in muscle mass over time. Creatine supplementation can also improve strength and muscle size in females, and have favourable effects on bone density when used with resistance training. The typical dosage is 20 grams daily for the first 5-7 days, followed by 3-5 grams daily for up to 12 weeks. However, some possible side effects include weight gain due to water retention, nausea, and diarrhoea.
Whey Protein
Whey protein is a fast-digesting protein found in milk that provides the essential amino acids required for muscle growth. It is often consumed in supplement forms such as powders, bars, and shakes. Consistent consumption of whey protein alongside exercise can improve strength and muscle growth.
Carnitine
Carnitine is a compound produced in the brain, liver, and kidneys, and can also be found in red meats, fish, and certain plants. It plays a role in energy metabolism and can increase oxygen intake and power output during exercise. Carnitine supplementation has been shown to improve muscle growth and support post-workout recovery by aiding the healing of damaged cells that cause muscle soreness.
Beta-Alanine
Beta-alanine is another supplement that has been shown to support muscle growth and improve athletic performance.
Branched-Chain Amino Acids (BCAAs)
BCAAs are commonly consumed through food but are also available as supplements. While research is ongoing, BCAAs may be beneficial for muscle gain or reducing muscle loss, especially if your diet is inadequate in high-quality protein.
HMB
HMB is a naturally produced compound in the body, and supplementation can lead to higher levels, which may benefit muscle growth. Research suggests that HMB supplementation is most effective for those who are new to exercise or increasing workout intensity.
It is always recommended to consult with a healthcare professional before starting any new supplementation program to ensure safety and determine the correct dosing for your needs.
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Frequently asked questions
Yes, resistance training is one of the most important factors in maintaining muscle mass when losing weight.
Research suggests that resistance training two to three times a week for up to six months can help prevent muscle loss while reducing fat mass and body weight.
Yes, lifting weights can also help improve muscle mass, recovery, and strength. Additionally, it can promote fat loss by increasing energy expenditure.
Yes, some supplements such as caffeine and nitrate may help boost muscular strength and preserve muscle mass. However, it is important to consult with a healthcare professional before taking any supplements.
According to studies, athletes can start to lose muscle strength in about three weeks if they stop working out. Non-athletes can also take about three weeks off without seeing a noticeable drop in muscle strength.
