Fitness
Lunges, squats and holds for stronger tendons and ligaments
UC Davis Health molecular exercise physiologist Keith Baar specializes in sports medicine. He studies the effects of exercise on bone, muscle and tendon health.
In this Q&A, he discusses how intensive exercising after injury or when overweight can cause damage to ligaments and tendons. He also talks about the importance of integrating isometric or static exercises into our fitness routines.
Baar is a professor in the Departments of Neurobiology, Physiology and Behavior and Physiology and Membrane Biology.
Many people who are overweight may find it hard to start exercising. Why is this, according to your research?
People who have type 2 diabetes, and in many cases are overweight or obese, have metabolic problems. Society always says that if these people just ate better and exercised more, they would be fine. But data from Denmark shows that if they aggressively start exercising, they will actually rupture tendons. In fact, they are three times more likely to develop tendon problems if they do this, than if they were to decrease their weight slowly and then gradually increase their activity. Our research is starting to explain why.
People with kidney disease, are older, on bad diets, or are overweight or obese make less collagen. Yet, we’re telling them all to go out and exercise more. But that is putting them at a pretty big risk for catastrophic injuries to their tendons. If they do get a serious tendon or ligament injury, this increases their risk for heart attacks and further metabolic diseases.
What is a safe way for people recovering from injuries or who are overweight to exercise?
Classically, most people think about running, walking and rhythmic exercises that are associated with impact forces on the ground. Those impact forces are basically absorbed by our tendons, cartilage and bones. If we go out and start running when we are not in the best shape, there is a greater risk that we will cause injuries to these tissues, even if we are not overweight.
For example, our data have shown that when a person who has had a leg in a cast for a while goes back to exercising and normal activities, the leg that was not in a cast gets stronger and better, and the previously casted leg does not improve nearly as much — about threefold less. We think that is a really big issue for how people recover after any injury.
If we’re going to start exercising, we can’t only go out and run or walk. Instead, our research shows that when we add long isometric holds, the tissues, like our tendons and muscles, improve better. Adding these exercises helps build muscular strength and endurance.
What are isometric exercises?
Isometric or static exercises are moves that involve contracting or tightening the muscles without changing their length. They are positions that hold the body or limbs in a fixed position for a period of time. They include planks, squats, lunges and many more positions.
We hear about walking 10,000 steps a day. Is there a golden number for how many times per week to do isometric exercises?
It is totally fine for people to go out and get their steps. When they finish their steps, we would have them do a couple of simple movements, like holding a lunge for 10-30 seconds. To do this, they simply put one foot in front of the other. Then, they bend down so their back knee is just above the ground. That’s a great movement because it will strengthen the Achilles tendon on one leg and the patellar and the quadriceps on the other leg. We would do that kind of exercise at the end of our walk or run or whatever best fits into the person’s routine.
And then you do two or three different moves like that. You hold them for 10-30 seconds each. That’s all you need to do to keep those tissues healthier in the long run.
In another study, we worked with a professional rock climber who helped us get over 500 people to participate in training using a hangboard. A hangboard or a fingerboard is a training tool to increase hand and finger strength. The study showed that when they do these 10-second isometric holds, where people put only part of their body weight on their fingers, their tendons get this long low-intensity isometric that actually increases the strength of those tendons as much as if they were to lift or hold as heavy a weight as possible.
What you want to do is add in those low-intensity, longer-hold isometrics (especially for the legs) to your walking, running or pickleball exercise. The two types of exercise have an additive effect that keeps you healthy and actually makes you stronger.
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Fitness
How to avoid exercise burnout and still build muscle, according to an expert
Many of us have experienced the overwhelming feeling of mental and physical exhaustion that comes with exercise burnout. When you push yourself too hard without sufficient rest and recovery, it ultimately becomes counterproductive to your fitness goals, and your energy will tank along with your motivation. Not only that, your performance will suffer when you overtrain and under-recover, and you’re left sinking further into the couch, wondering how you’ll lift that next weight, swim that next lap, or run that next mile.
With a combo of the right nutrition, rest, recovery, and lowering your training intensity, you can get back on track. To learn more about avoiding burnout and torching fat while sculpting muscle for men, I asked certified personal trainer and Vice President of Education for Body Fit Training, Steve Stonehouse, to share some of his vast knowledge on the subject. With decades of experience in fitness education, fitness programming, and personal training, Steve Stonehouse developed an in-depth knowledge of weight loss, improving body fat composition, building muscle, and the best exercise plans that generate serious results.
Expert advice on burning fat
The Manual: As the Vice President of Education for Body Fit Training, what are your top tips for burning fat and improving body composition for men?
Steve Stonehouse: As the programmer and head of education, this is a little cliché, but I go for balance. Not every workout can be this CrossFit type, give it all you’ve got, smoke yourself, and work out — that’s not sustainable. The other end of the spectrum is just walking at a moderate pace for 20 minutes on a treadmill three times a week, because that’s not going to do it either. There’s value in both of those scenarios.
It’s best to have a session or two each week where the intensity is very high, and you’re testing yourself and pushing yourself closer to your limits. That’s anaerobic exercise, which is 90% intensity or above. It’s fine, safe, and healthy to get there occasionally, but every workout can’t be one of those. Your body isn’t built to train that way; you’re gonna burn out, and you could get injured, or both.
There’s a place for some moderate intensity as well, so if I were focusing on heart rate, I would say in the 80s, so it’s hard but not max effort, and it’s more sustainable. When you’re in that 70 to high 80s range, we categorize that as building aerobic capacity. Overall, I suggest an approach with recovery, moderate intensity, and then high intensity every now and again to test yourself.
The best cardio for fat loss
TM: How does cardio help with fat loss, and what types of cardio do you recommend?
Steve Stonehouse: I’m a big fan of high-intensity cardio. Sometimes, people think if some is good, more is probably better, but more isn’t always better. If I were putting a program together for six days a week, I’d have three days as some type of cardio-driven day, and three of those days I would have some version of resistance training. Maybe some days are heavier, and other days are a little lighter with higher rep targets and less rest.
Of those three cardio days, I’d recommend that one of them be a high-intensity max effort type HIIT session. Another could be hard with a heart rate in the 80s, but not max effort. That third cardio day could be more metabolic conditioning, like kettlebell swings, sled pushes, rower, or SkiErg, and things like that.
Ramping up muscle growth
TM: What types of exercise are the most effective for ramping up muscle growth?
Steve Stonehouse: We’re moving into a great space right now in fitness, and it seems like every 10 or 15 years, there’s this new movement. CrossFit first popped up and led the charge for metabolic conditioning and no days off. It’s the idea that if you still feel good at the end of a workout, you didn’t train hard enough. I think we’re phasing out of that and into wanting to lift heavy again. People who wouldn’t have touched a barbell ten years ago are lifting heavy now.
Keep in mind that heavy is a relative term. You can get stronger with some lighter dumbbells, but there are limits to that. A blend is nice, but you do need to include those times when you’re lifting heavy and challenging yourself at a low rep target.
Say, I’m going to do barbell deadlifts for five reps. If I can do eight, then that weight is too light. It’s intended to be a weight that you can’t get 15 reps of. There are advantages to lifting heavy with low-rep targets and longer rest times. For example, we’re going to do four sets of five reps of barbell deadlifts with two minutes of rest in between sets. If you can do more than five or six reps, that weight is too light. There’s a lot of value in lifting heavy.
TM: We know it’s probably difficult to choose, but what are your top three favorite fat-burning, muscle-building exercises right now?
Steve Stonehouse:
- Barbell Zercher squat
- Barbell deadlift
- Flat barbell bench press
TM: How often should you work out to build muscle?
Steve Stonehouse: For the heavy session with five or six reps and longer rest periods, you could have a day each week that’s primarily focused on upper-body heavy strength training. Then, you could split it up and have another day that’s primarily focused on the lower body. You could do that, so you’re not in the gym for two hours; it’s more like a reasonable 45 or 50 minutes. If you were feeling ambitious, you could get a third one in toward the end of the week and have a bit of a mixed session where there’s not as much volume, but you have upper-body and lower-body focus.
With that type of heavy volume, you’re going to need a decent amount of time to rest. So, if I were doing a heavy bench press today, I probably wouldn’t do that again until next week — same thing with squats, deadlifts, or any larger main lifts.
Incorporating sufficient rest days and progressive overload
TM: Are rest days important for the best results?
Steve Stonehouse: Yes. Rest and recovery are two different things. A recovery session would include a bit of activity, but at a lower intensity. Recovery is restoring to a natural, healthy state, and rest is inactivity.
TM: With resistance training, do you recommend incorporating progressive overload, where you gradually increase the weights over time to develop muscle strength and mass?Steve Stonehouse: 100%. We do strength training regularly at BFT. We have a portion of our performance app, and you can enter your five-rep max. On different days, the performance app tells you how much weight you should be lifting on that day to appropriately follow that progressive overload model.
Fitness
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Fitness
Skip the 10,000 Steps: The One Exercise That Matches a Full Day of Walking, according to a Fitness Coach
On Instagram, Zarina Manaenkova advised taking short intervals of squats could deliver the same impact as a full day of walking. “Ten squats instead of 10 thousand steps,” Zarina’s post read, referencing a study that equated ten squats every 45 minutes with 10,000 steps. Manaenkova explained the science behind her claim, stating, “When your muscles actively contract, they produce very important compounds that influence your brain, metabolism, and even your fat-burning processes. Meanwhile, a simple walk does not have this effect. So, if you want to stay young, squat.”
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