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If young, healthy guys do certain muscle-lengthening exercises before having one leg kept still for a week, their muscles don’t slow down making new proteins as much as those who don’t exercise —...
If young, healthy guys do certain tough leg exercises before keeping one leg still, they might avoid losing muscle in that leg during the first couple of days of not using it.
If young, healthy guys do a tough leg workout right before having one leg immobilized for a week, their muscles in that leg keep building protein faster for the first couple of days compared to if...
Overtraining in athletes might actually show up as low energy from sports, meaning that 'low energy' could just be one way overtraining looks, not a totally different problem.
Low energy levels in athletes might help explain why some get overtraining syndrome, but it's not the only reason — other factors like brain fatigue and body inflammation could also play a role.
Teen girl gymnasts who train four times a week steadily get better at jumping power and handle landings more safely over a month, suggesting regular but not overloaded practice helps their bodies...
When teenage girl gymnasts go from training 4 to 6 times a week for two weeks, their muscles and coordination get worse over time, especially in the second week — meaning piling on too much too fast...
When young female gymnasts train six times a week instead of four for two weeks, they hit the ground harder when landing jumps, which could make injuries more likely.
When young female gymnasts who train regularly add extra workouts for two weeks straight, they might lose some of their explosive jumping power compared to sticking to their normal routine.
Triathletes who push their training too hard without enough recovery are way more likely to get sick—7 out of 10 had infection symptoms, compared to just 2 out of 10 who were tired but not...
When male triathletes take a break from intense training, most hit their best performance in the first two weeks, even if they were really worn out before — heavy training doesn’t seem to delay their...
If triathletes train too hard for three weeks and get overly tired, they don’t get better at using oxygen when they cut back to rest—unlike those who aren’t overdoing it, who do get noticeably better.
If triathletes feel tired but still perform well during intense training, they tend to bounce back stronger after a rest period—gaining about 2.6% more peak performance—compared to those who push too...
For young male rugby players who lift weights, doing more reps to build muscle might slightly hurt their jumping ability compared to training for pure strength — but the measurement wasn't perfect,...
For young male rugby players who lift weights, doing high-rep, lighter weight workouts seems to slow them down and make them less agile for a day or two more than doing low-rep, heavy weight workouts.
When young male rugby players switch from heavy lifting to doing more reps with lighter weights, they feel more muscle soreness and show signs of more muscle damage in blood tests.
Overtraining can make your heart beat faster at rest, respond poorly during exercise, and thicken your blood, making it harder for oxygen to reach your muscles and making your legs feel heavy.
Overtraining can make your muscles worse at using sugar for energy, so they store less fuel and produce more lactic acid, making you tire faster.
When athletes overtrain, their stress hormone system can become worn out, so their body doesn't respond normally to stress and their daily hormone patterns get messed up.
Too much intense exercise can mess up the good bacteria in your gut and make your gut 'leaky,' letting harmful stuff into your body and causing stomach problems and body-wide inflammation.
When athletes or soldiers train too much, their bodies can go into overtraining mode, which causes hidden inflammation that weakens the immune system, makes muscles shrink, messes with blood sugar,...
Young male rugby players who do high-volume muscle-building workouts might see a small drop in their jump performance compared to those doing heavy strength training — but the results aren't super...
In young male rugby players who lift weights, doing high-rep, lighter weight workouts leads to worse sprinting and agility performance for up to two days compared to low-rep, heavy weight workouts.
When young male rugby players switch from heavy strength training to a higher-rep, lighter-weight muscle-building routine, they feel more sore and show more signs of muscle damage in their blood...