Masters athletes take longer to recover from high intensity exercise than training- matched younger athletes. Does increased protein intake enhance recovery?

Research output: Contribution to journalMeeting AbstractResearchpeer-review

Abstract

Introduction: Masters athletes (MA) undertaking high intensity exercise recover muscular performance at rates similar to younger athletes (YA) following fatiguing, non–muscle damaging exercise such as cycling. However, following exercise–induced muscle damage from running, MA take longer than YA to recover. Older untrained adults exhibit age–related anabolic resistance to skeletal muscle repair and remodeling. We examined whether this anabolic resistance persists in MA and whether it contributes to slower rates of acute and chronic recovery of muscle performance compared to YA. Secondly, we examined whether increasing protein intake following high intensity exercise in MA can enhance the recovery of muscular performance.

Methods: Using doubly labelled water and muscle biopsy, study 1 compared muscle protein synthesis (MPS) rates of five masters triathletes (53 ± 2 yr, 55.7 ± 6.9 mL.kg-1.min-1) and six young (27 ± 2 yr, 62.3 ± 1.5 mL.kg-1.min-1) triathletes who completed a 30–min downhill run followed by three 20 km cycling time trials 10, 24 and 48 hr following the run. In study 2, eight masters triathletes (52 ± 2 yr, 51.8 ± 4.2 mL.kg-1.min-1) completed two exercise trials separated by seven days. Each trial consisted of morning strength testing and a 30–min downhill run followed by an 8 hr recovery period during which a moderate (0.3 g.kg-1) or high (0.6 g.kg-1) protein intake was consumed at regular intervals commencing immediately after the run. Strength, cycling time trial and perceptions of recovery were assessed pre– and post–exercise.

Results: The masters triathletes showed a significantly lower MPS rate compared to the younger triathletes (1.49 ± 0.12%.d-1 v 1.70 ± 0.09%.d-1). In comparison to baseline, there was a trend for masters triathletes to produce a slower cycle time trial (-3.0%) compared to younger triathletes (-1.4%) 10 hr post–run. In study 2, the higher protein intake did not improve recovery of cycling performance compared to the moderate protein intake. However, the higher protein intake showed a moderate beneficial effect in lowering the loss of afternoon strength (-3.6%) compared to the moderate protein intake (-8.6%). In addition, the high protein intake provided a large beneficial effect in reducing perceived fatigue over the 8 hr recovery period compared to the moderate protein intake.

Discussion: Taken together, it appears that regular training into older age does not offset age–related impairments in MPS. However, higher than recommended protein feedings may benefit recovery of subsequent performance in MA
Original languageEnglish
Article numberO36
Pages (from-to)S32-S33
Number of pages2
JournalJournal of Science and Medicine in Sport
Volume22
Issue numberSuppl 2
DOIs
Publication statusPublished - Oct 2019

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Athletes
Exercise
Proteins
Muscle Proteins
Muscles
Time Perception
Running
Fatigue
Skeletal Muscle
Biopsy
Water

Cite this

@article{7d7eddfa66fe4dc4bdbc17d582ecdef2,
title = "Masters athletes take longer to recover from high intensity exercise than training- matched younger athletes. Does increased protein intake enhance recovery?",
abstract = "Introduction: Masters athletes (MA) undertaking high intensity exercise recover muscular performance at rates similar to younger athletes (YA) following fatiguing, non–muscle damaging exercise such as cycling. However, following exercise–induced muscle damage from running, MA take longer than YA to recover. Older untrained adults exhibit age–related anabolic resistance to skeletal muscle repair and remodeling. We examined whether this anabolic resistance persists in MA and whether it contributes to slower rates of acute and chronic recovery of muscle performance compared to YA. Secondly, we examined whether increasing protein intake following high intensity exercise in MA can enhance the recovery of muscular performance.Methods: Using doubly labelled water and muscle biopsy, study 1 compared muscle protein synthesis (MPS) rates of five masters triathletes (53 ± 2 yr, 55.7 ± 6.9 mL.kg-1.min-1) and six young (27 ± 2 yr, 62.3 ± 1.5 mL.kg-1.min-1) triathletes who completed a 30–min downhill run followed by three 20 km cycling time trials 10, 24 and 48 hr following the run. In study 2, eight masters triathletes (52 ± 2 yr, 51.8 ± 4.2 mL.kg-1.min-1) completed two exercise trials separated by seven days. Each trial consisted of morning strength testing and a 30–min downhill run followed by an 8 hr recovery period during which a moderate (0.3 g.kg-1) or high (0.6 g.kg-1) protein intake was consumed at regular intervals commencing immediately after the run. Strength, cycling time trial and perceptions of recovery were assessed pre– and post–exercise.Results: The masters triathletes showed a significantly lower MPS rate compared to the younger triathletes (1.49 ± 0.12{\%}.d-1 v 1.70 ± 0.09{\%}.d-1). In comparison to baseline, there was a trend for masters triathletes to produce a slower cycle time trial (-3.0{\%}) compared to younger triathletes (-1.4{\%}) 10 hr post–run. In study 2, the higher protein intake did not improve recovery of cycling performance compared to the moderate protein intake. However, the higher protein intake showed a moderate beneficial effect in lowering the loss of afternoon strength (-3.6{\%}) compared to the moderate protein intake (-8.6{\%}). In addition, the high protein intake provided a large beneficial effect in reducing perceived fatigue over the 8 hr recovery period compared to the moderate protein intake.Discussion: Taken together, it appears that regular training into older age does not offset age–related impairments in MPS. However, higher than recommended protein feedings may benefit recovery of subsequent performance in MA",
author = "Reaburn, {Peter R J} and Doering, {Thomas M} and Borges, {Nattai R.}",
year = "2019",
month = "10",
doi = "10.1016/j.jsams.2019.08.198",
language = "English",
volume = "22",
pages = "S32--S33",
journal = "Journal of Science and Medicine in Sport",
issn = "1440-2440",
publisher = "Elsevier",
number = "Suppl 2",

}

Masters athletes take longer to recover from high intensity exercise than training- matched younger athletes. Does increased protein intake enhance recovery? / Reaburn, Peter R J; Doering, Thomas M; Borges, Nattai R.

In: Journal of Science and Medicine in Sport, Vol. 22, No. Suppl 2, O36, 10.2019, p. S32-S33.

Research output: Contribution to journalMeeting AbstractResearchpeer-review

TY - JOUR

T1 - Masters athletes take longer to recover from high intensity exercise than training- matched younger athletes. Does increased protein intake enhance recovery?

AU - Reaburn, Peter R J

AU - Doering, Thomas M

AU - Borges, Nattai R.

PY - 2019/10

Y1 - 2019/10

N2 - Introduction: Masters athletes (MA) undertaking high intensity exercise recover muscular performance at rates similar to younger athletes (YA) following fatiguing, non–muscle damaging exercise such as cycling. However, following exercise–induced muscle damage from running, MA take longer than YA to recover. Older untrained adults exhibit age–related anabolic resistance to skeletal muscle repair and remodeling. We examined whether this anabolic resistance persists in MA and whether it contributes to slower rates of acute and chronic recovery of muscle performance compared to YA. Secondly, we examined whether increasing protein intake following high intensity exercise in MA can enhance the recovery of muscular performance.Methods: Using doubly labelled water and muscle biopsy, study 1 compared muscle protein synthesis (MPS) rates of five masters triathletes (53 ± 2 yr, 55.7 ± 6.9 mL.kg-1.min-1) and six young (27 ± 2 yr, 62.3 ± 1.5 mL.kg-1.min-1) triathletes who completed a 30–min downhill run followed by three 20 km cycling time trials 10, 24 and 48 hr following the run. In study 2, eight masters triathletes (52 ± 2 yr, 51.8 ± 4.2 mL.kg-1.min-1) completed two exercise trials separated by seven days. Each trial consisted of morning strength testing and a 30–min downhill run followed by an 8 hr recovery period during which a moderate (0.3 g.kg-1) or high (0.6 g.kg-1) protein intake was consumed at regular intervals commencing immediately after the run. Strength, cycling time trial and perceptions of recovery were assessed pre– and post–exercise.Results: The masters triathletes showed a significantly lower MPS rate compared to the younger triathletes (1.49 ± 0.12%.d-1 v 1.70 ± 0.09%.d-1). In comparison to baseline, there was a trend for masters triathletes to produce a slower cycle time trial (-3.0%) compared to younger triathletes (-1.4%) 10 hr post–run. In study 2, the higher protein intake did not improve recovery of cycling performance compared to the moderate protein intake. However, the higher protein intake showed a moderate beneficial effect in lowering the loss of afternoon strength (-3.6%) compared to the moderate protein intake (-8.6%). In addition, the high protein intake provided a large beneficial effect in reducing perceived fatigue over the 8 hr recovery period compared to the moderate protein intake.Discussion: Taken together, it appears that regular training into older age does not offset age–related impairments in MPS. However, higher than recommended protein feedings may benefit recovery of subsequent performance in MA

AB - Introduction: Masters athletes (MA) undertaking high intensity exercise recover muscular performance at rates similar to younger athletes (YA) following fatiguing, non–muscle damaging exercise such as cycling. However, following exercise–induced muscle damage from running, MA take longer than YA to recover. Older untrained adults exhibit age–related anabolic resistance to skeletal muscle repair and remodeling. We examined whether this anabolic resistance persists in MA and whether it contributes to slower rates of acute and chronic recovery of muscle performance compared to YA. Secondly, we examined whether increasing protein intake following high intensity exercise in MA can enhance the recovery of muscular performance.Methods: Using doubly labelled water and muscle biopsy, study 1 compared muscle protein synthesis (MPS) rates of five masters triathletes (53 ± 2 yr, 55.7 ± 6.9 mL.kg-1.min-1) and six young (27 ± 2 yr, 62.3 ± 1.5 mL.kg-1.min-1) triathletes who completed a 30–min downhill run followed by three 20 km cycling time trials 10, 24 and 48 hr following the run. In study 2, eight masters triathletes (52 ± 2 yr, 51.8 ± 4.2 mL.kg-1.min-1) completed two exercise trials separated by seven days. Each trial consisted of morning strength testing and a 30–min downhill run followed by an 8 hr recovery period during which a moderate (0.3 g.kg-1) or high (0.6 g.kg-1) protein intake was consumed at regular intervals commencing immediately after the run. Strength, cycling time trial and perceptions of recovery were assessed pre– and post–exercise.Results: The masters triathletes showed a significantly lower MPS rate compared to the younger triathletes (1.49 ± 0.12%.d-1 v 1.70 ± 0.09%.d-1). In comparison to baseline, there was a trend for masters triathletes to produce a slower cycle time trial (-3.0%) compared to younger triathletes (-1.4%) 10 hr post–run. In study 2, the higher protein intake did not improve recovery of cycling performance compared to the moderate protein intake. However, the higher protein intake showed a moderate beneficial effect in lowering the loss of afternoon strength (-3.6%) compared to the moderate protein intake (-8.6%). In addition, the high protein intake provided a large beneficial effect in reducing perceived fatigue over the 8 hr recovery period compared to the moderate protein intake.Discussion: Taken together, it appears that regular training into older age does not offset age–related impairments in MPS. However, higher than recommended protein feedings may benefit recovery of subsequent performance in MA

U2 - 10.1016/j.jsams.2019.08.198

DO - 10.1016/j.jsams.2019.08.198

M3 - Meeting Abstract

VL - 22

SP - S32-S33

JO - Journal of Science and Medicine in Sport

JF - Journal of Science and Medicine in Sport

SN - 1440-2440

IS - Suppl 2

M1 - O36

ER -